From qrv at kd4e.com  Sun Mar  1 18:51:32 2015
From: qrv at kd4e.com (qrv at kd4e.com)
Date: Sun, 01 Mar 2015 18:51:32 -0500
Subject: [50mhz] 6m Point-to-Point Distances?
Message-ID: <54F3A604.3090204@kd4e.com>

Questions:

What's a reasonable expectation of 6m mobile-to-mobile
direct communications @ 25w - 50w?

How does that change if one station is fixed and the
antenna is at 30-35'?

What about two fixed locations w/antennas both at 30-35'?

I've read about repeaters using 6m as a backbone but what
about control signals and/or digital modes, must that be
at 220 or higher?

I used to know this stuff but you know, lack of use,
and all that ... surely not age!  ;-)

Thanks - David KD4E


-- 

*David* KD4E
ARES-EC Bulloch County, Nevils, Georgia USA

Safe & Secure Search Engine: duckduckgo.com

Android for Hams: groups.yahoo.com/group/hamdroid
Creative Tech: groups.yahoo.com/group/ham-macguyver
Raspi Alternative: groups.yahoo.com/group/beagleboneblack/

Restored to design-spec at Heaven's gate 1Cor15:22

From kb0stn at sbcglobal.net  Sun Mar  1 22:15:33 2015
From: kb0stn at sbcglobal.net (Ray Brown)
Date: Sun, 1 Mar 2015 21:15:33 -0600
Subject: [50mhz] 6m Point-to-Point Distances?
References: <54F3A604.3090204@kd4e.com>
Message-ID: <7563E558AA5E4DADBF27CD6A851F4F4F@dell332028a83b>


----- Original Message ----- 
From: <qrv at kd4e.com>


> Questions:
> 
> What's a reasonable expectation of 6m mobile-to-mobile
> direct communications @ 25w - 50w?

  If they're both running 1/4 whips, I'd say 25 miles in mostly-open terrain.
 
> How does that change if one station is fixed and the
> antenna is at 30-35'?

  Probably out to 40-50 miles...

> What about two fixed locations w/antennas both at 30-35'?

  If they are DB-201 antennas, which are 1/2 wave folded-down
ground-plane antennas, 50 to 60 miles.. if the're running yagis,
might be up to 100 miles.. better with SSB than with FM, though..

> I've read about repeaters using 6m as a backbone but what
> about control signals and/or digital modes, must that be
> at 220 or higher?

  As far as I know, you can still run digital on 6m, but hardly anyone
else runs digital on 6m... and yes, control should be at 220 or higher...

> I used to know this stuff but you know, lack of use,
> and all that ... surely not age!  ;-)

  Growing old is mandatory.. growing up is optional. :-)


                Ray, KB0STN







From cboone at earthlink.net  Mon Mar  2 00:51:50 2015
From: cboone at earthlink.net (Chris Boone)
Date: Sun, 1 Mar 2015 23:51:50 -0600 (GMT-06:00)
Subject: [50mhz] 6m Point-to-Point Distances?
Message-ID: <1928230.1425275510943.JavaMail.root@wamui-hunyo.atl.sa.earthlink.net>

My answers below without leading > ...

-----Original Message-----
>> Questions:
>> 
>> What's a reasonable expectation of 6m mobile-to-mobile
>> direct communications @ 25w - 50w?
>
>  If they're both running 1/4 whips, I'd say 25 miles in mostly-open terrain.

Depending on noise levels, less than 25 miles...10-15 max in flat open terrain in my experience. Even with 100 watts and a noise blanker is highly recommended even on FM...though most ham FM rigs on 6 does not have such, yet their commercial counterparts DO!..go figure.
 
>> How does that change if one station is fixed and the
>> antenna is at 30-35'?
>
>  Probably out to 40-50 miles...
>
>> What about two fixed locations w/antennas both at 30-35'?
>
>  If they are DB-201 antennas, which are 1/2 wave folded-down
>ground-plane antennas, 50 to 60 miles.. if the're running yagis,
>might be up to 100 miles.. better with SSB than with FM, though..

30-35 ft and a DB201 wont cover 50-60 miles base to base; maybe 40 miles if that. Neighbor across the street from me (WA5EFI) when I 1st got licensed had 40ft of tower with a DB201 on top....he and a coworker tried 6m simplex over a 50 miles path...never made it on regular basis

The DB201 is a 1/4 folded monopole groundplane; a folded monopole is a 1/4wl antenna with a second downlead conductor which goes to ground...this provides a ground return since overall length is from the feedpoint is 1/2wl and thus the feedpoint is still a 50 ohm feed and does not see the short to ground but the top of the antenna now sees a DC ground; this method is also used in AM broadcast station on grounded towers but in reverse with an outside skirt around the tower as the driven/insulated feedpoint and the tower, which is the support for the skirt, is grounded for lightning and also allows other antennas/feedlines to be mounted on the tower without causing issues with the AM operation or need of an isocoupler on every other feedline!

A DB212-3 at 300 ft fed by 7/8 Heliax and 100 watt MICOR got more than 70 miles in the main lobe...side (90deg) coverage was maybe 40-50 miles.

Always better with SSB than FM since FM is not a weak signal mode..especially on 2m....you can get easily 20-300 miles on 6SSB with a 50 ft high yagis at each end and 100w...FM is much less due to capture effect and FM not being a weak signal mode.

>> I've read about repeaters using 6m as a backbone but what
>> about control signals and/or digital modes, must that be
>> at 220 or higher?
>
>  As far as I know, you can still run digital on 6m, but hardly anyone
>else runs digital on 6m... and yes, control should be at 220 or higher...

6m is the lowest band 'certain' digital PHONE modes are allowed such as P25 or the C4FM mode by Yaesu (The emission designator Yaesu uses for C4FM, F7W, is NOT legal below 50.1 MHz under current FCC Part 97 rules). Also 9600 baud packet can only be used 50.1 and above..97.3(c) and 97.307 and 97.308 cover what can and cannot be used where. NOTE any emission that carries VOICE is considered PHONE..even if digital so those modes only allowed by 97.3(c)(5) are allowed in subbands designated PHONE and C4FM is not listed as a legal PHONE mode. There is no "Digital/Analog" mention in Part 97...only Data, Image, Voice, etc. in Part 97.3.

6m cannot be used for AUX linking (backbone) on voice systems....and is not recommended...hell the normal rptr subband is not even standard across the US...thanks to 1960s thinking by the ARRL VRAC in the 1990s....for packet backbone, it would be great at 50.6-50.7!! Much longer path than 220 or 440..and you can run 9600 baud. 

As to control (which falls under the AUX rules), 144.5-145.5 and 146.0-148 IS now allowed (has been for couple of years...Kenwood pushed for it to allow their SkyCommand to be legalized).

222.15 and above (except 431-433 and 435-438) are the other bands allowed for AUX/CONTROL/LINK...a 6m rptr cannot be controlled on its input legally...now a 2m can be as well as 220 and above rptrs..

222.0-222.15 is reserved for SSB/CW/data/etc. Rptr inputs are not allowed there and no AUX use is allowed there either (same with 144.0-144.5 and 145.5-146 and 219-220 which are also offlimits for rptrs and aux use)


Chris
WB5ITT



From bcarling at cfl.rr.com  Mon Mar  2 10:43:45 2015
From: bcarling at cfl.rr.com (bcarling at cfl.rr.com)
Date: Mon, 02 Mar 2015 10:43:45 -0500
Subject: [50mhz] 6m Point-to-Point Distances?
In-Reply-To: <7563E558AA5E4DADBF27CD6A851F4F4F@dell332028a83b>
References: <54F3A604.3090204@kd4e.com>,
	<7563E558AA5E4DADBF27CD6A851F4F4F@dell332028a83b>
Message-ID: <54F48531.7278.75F420@bcarling.cfl.rr.com>

Very good - and YES - on CW, even more range, since it has an advantage over SSB !!

See you all on 6m all modes!

Bry AF4K

On 1 Mar 2015 at 21:15, Ray Brown wrote:

> 
> ----- Original Message ----- 
> From: <qrv at kd4e.com>
> 
> 
> > Questions:
> > 
> > What's a reasonable expectation of 6m mobile-to-mobile
> > direct communications @ 25w - 50w?
> 
>   If they're both running 1/4 whips, I'd say 25 miles in mostly-open terrain.
>  
> > How does that change if one station is fixed and the
> > antenna is at 30-35'?
> 
>   Probably out to 40-50 miles...
> 
> > What about two fixed locations w/antennas both at 30-35'?
> 
>   If they are DB-201 antennas, which are 1/2 wave folded-down
> ground-plane antennas, 50 to 60 miles.. if the're running yagis,
> might be up to 100 miles.. better with SSB than with FM, though..
> 
> > I've read about repeaters using 6m as a backbone but what
> > about control signals and/or digital modes, must that be
> > at 220 or higher?
> 
>   As far as I know, you can still run digital on 6m, but hardly anyone
> else runs digital on 6m... and yes, control should be at 220 or higher...
> 
> > I used to know this stuff but you know, lack of use,
> > and all that ... surely not age!  ;-)
> 
>   Growing old is mandatory.. growing up is optional. :-)
> 
> 
>                 Ray, KB0STN
> 
> 
> 
> 
> 
> 
> ______________________________________________________________
> 50mhz mailing list
> Home: http://mailman.qth.net/mailman/listinfo/50mhz
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:50mhz at mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html



From w1aer at earthlink.net  Mon Mar  2 14:12:03 2015
From: w1aer at earthlink.net (Art Roberts)
Date: Mon, 2 Mar 2015 14:12:03 -0500
Subject: [50mhz] 6m Point-to-Point Distances?
In-Reply-To: <54F3A604.3090204@kd4e.com>
References: <54F3A604.3090204@kd4e.com>
Message-ID: <023201d0551c$c47b3b00$4d71b100$@earthlink.net>


Back when I was first licensed (1960) and started working 6 meters, I was
living outside Denver and South of the National Bureau of Standards. The
Bureau was working on  a project that ran at 49.5 MHz  They had eight 5
element yagis at around 30 feet, all lined up and aimed at a station outside
Chicago, that had the same setup. They were investigating tropo scatter, and
if they could maintain constant contact with a KW station and this antenna
setup. From my memory, it seemed to work as hoped. We could hear the Chicago
station occasionally with our limited antennas.

I think my 72 year old memory has this right.

Art
W1AER
Tariffville, CT


-----Original Message-----
From: 50mhz [mailto:50mhz-bounces at mailman.qth.net] On Behalf Of qrv at kd4e.com
Sent: Sunday, March 01, 2015 6:52 PM
To: 6m; 6meter at yahoogroups.com
Subject: [50mhz] 6m Point-to-Point Distances?

Questions:

What's a reasonable expectation of 6m mobile-to-mobile direct communications
@ 25w - 50w?

How does that change if one station is fixed and the antenna is at 30-35'?

What about two fixed locations w/antennas both at 30-35'?

I've read about repeaters using 6m as a backbone but what about control
signals and/or digital modes, must that be at 220 or higher?

I used to know this stuff but you know, lack of use, and all that ... surely
not age!  ;-)

Thanks - David KD4E


-- 

*David* KD4E
ARES-EC Bulloch County, Nevils, Georgia USA

Safe & Secure Search Engine: duckduckgo.com

Android for Hams: groups.yahoo.com/group/hamdroid Creative Tech:
groups.yahoo.com/group/ham-macguyver
Raspi Alternative: groups.yahoo.com/group/beagleboneblack/

Restored to design-spec at Heaven's gate 1Cor15:22
______________________________________________________________
50mhz mailing list
Home: http://mailman.qth.net/mailman/listinfo/50mhz
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:50mhz at mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html


From w7gj at q.com  Mon Mar  2 14:42:06 2015
From: w7gj at q.com (Lance Collister, W7GJ)
Date: Mon, 02 Mar 2015 19:42:06 +0000
Subject: [50mhz] 6m Point-to-Point Distances?
In-Reply-To: <023201d0551c$c47b3b00$4d71b100$@earthlink.net>
References: <54F3A604.3090204@kd4e.com>
	<023201d0551c$c47b3b00$4d71b100$@earthlink.net>
Message-ID: <54F4BD0E.4030701@q.com>

Hi Art,

D layer scatter signals on 6m are quite reliable for paths in the 600-1100 mile range 
between well equipped 6m stations.  That is one of the special characteristics about 
propagation on the "Magic Band" ;-)  That is why you often see reports of QRO 
stations with high gain antennas being received regularly by stations that far away.  
There is an ERP threshold, though, below which such signals are not audible, which is 
why it is not at all unusual for barefoot stations to be unable to answer big 
stations they hear on this propagation mode.

When JT65 was introduced, I was curious to know if its extra sensitivity ( 10-15 dB 
compared to CW) could be used to "level the playing field" between big stations and 
barefoot single yagi stations.   I ran some skeds with stations 700 - 1200 miles away 
and found that we could very easily and repeatedly complete JT65 contacts with each 
of us running under 100w and a single yagi.

GL and VY 73, Lance




On 3/2/2015 7:12 PM, Art Roberts wrote:
> Back when I was first licensed (1960) and started working 6 meters, I was
> living outside Denver and South of the National Bureau of Standards. The
> Bureau was working on  a project that ran at 49.5 MHz  They had eight 5
> element yagis at around 30 feet, all lined up and aimed at a station outside
> Chicago, that had the same setup. They were investigating tropo scatter, and
> if they could maintain constant contact with a KW station and this antenna
> setup. From my memory, it seemed to work as hoped. We could hear the Chicago
> station occasionally with our limited antennas.
>
> I think my 72 year old memory has this right.
>
> Art
> W1AER
> Tariffville, CT
>
>
> -----Original Message-----
> From: 50mhz [mailto:50mhz-bounces at mailman.qth.net] On Behalf Ofqrv at kd4e.com
> Sent: Sunday, March 01, 2015 6:52 PM
> To: 6m;6meter at yahoogroups.com
> Subject: [50mhz] 6m Point-to-Point Distances?
>
> Questions:
>
> What's a reasonable expectation of 6m mobile-to-mobile direct communications
> @ 25w - 50w?
>
> How does that change if one station is fixed and the antenna is at 30-35'?
>
> What about two fixed locations w/antennas both at 30-35'?
>
> I've read about repeaters using 6m as a backbone but what about control
> signals and/or digital modes, must that be at 220 or higher?
>
> I used to know this stuff but you know, lack of use, and all that ... surely
> not age!  ;-)
>
> Thanks - David KD4E
>
>


-- 
Lance Collister, W7GJ
(ex WA3GPL, WA1JXN, WA1JXN/C6A, ZF2OC/ZF8, E51SIX, 3D2LR, 5W0GJ, E6M, TX5K, KH8/W7GJ)
P.O. Box 73
Frenchtown, MT   59834-0073
USA
TEL: (406) 626-5728
QTH: DN27ub
URL:http://www.bigskyspaces.com/w7gj
Skype: lanceW7GJ
2m DXCC #11/6m DXCC #815

Interested in 6m EME?  Ask me about subscribing to the Magic Band EME
email group, or just fill in the request box at the bottom of my web
page (above)!


From trent.fleming at gmail.com  Mon Mar  2 16:35:58 2015
From: trent.fleming at gmail.com (Trent Fleming)
Date: Mon, 2 Mar 2015 15:35:58 -0600
Subject: [50mhz] 6m Point-to-Point Distances?
In-Reply-To: <54F4BD0E.4030701@q.com>
References: <54F3A604.3090204@kd4e.com>
	<023201d0551c$c47b3b00$4d71b100$@earthlink.net>
	<54F4BD0E.4030701@q.com>
Message-ID: <CA+VXS3dRot=7qaTiaNgXPi3AjVhneF5O0ag37-hVrFENnXPzKA@mail.gmail.com>

Lance,

Thanks for the information.  In the 60s, as a child, I remember my father
being involved with the American Red Cross as a volunteer.  They gave many
of those volunteers old Military Surplus radios (large walkie talkies) that
operated around 49-50 mc.  Dad was never very successful communicating more
than a few miles, even when outdoors.  Obviously, ERP and antennas would
have helped.

73,

Trent
N4DTF

On Mon, Mar 2, 2015 at 1:42 PM, Lance Collister, W7GJ <w7gj at q.com> wrote:

> Hi Art,
>
> D layer scatter signals on 6m are quite reliable for paths in the 600-1100
> mile range between well equipped 6m stations.  That is one of the special
> characteristics about propagation on the "Magic Band" ;-)  That is why you
> often see reports of QRO stations with high gain antennas being received
> regularly by stations that far away.  There is an ERP threshold, though,
> below which such signals are not audible, which is why it is not at all
> unusual for barefoot stations to be unable to answer big stations they hear
> on this propagation mode.
>
> When JT65 was introduced, I was curious to know if its extra sensitivity (
> 10-15 dB compared to CW) could be used to "level the playing field" between
> big stations and barefoot single yagi stations.   I ran some skeds with
> stations 700 - 1200 miles away and found that we could very easily and
> repeatedly complete JT65 contacts with each of us running under 100w and a
> single yagi.
>
> GL and VY 73, Lance
>
>
>
>
> On 3/2/2015 7:12 PM, Art Roberts wrote:
>
>> Back when I was first licensed (1960) and started working 6 meters, I was
>> living outside Denver and South of the National Bureau of Standards. The
>> Bureau was working on  a project that ran at 49.5 MHz  They had eight 5
>> element yagis at around 30 feet, all lined up and aimed at a station
>> outside
>> Chicago, that had the same setup. They were investigating tropo scatter,
>> and
>> if they could maintain constant contact with a KW station and this antenna
>> setup. From my memory, it seemed to work as hoped. We could hear the
>> Chicago
>> station occasionally with our limited antennas.
>>
>> I think my 72 year old memory has this right.
>>
>> Art
>> W1AER
>> Tariffville, CT
>>
>>
>> -----Original Message-----
>> From: 50mhz [mailto:50mhz-bounces at mailman.qth.net] On Behalf
>> Ofqrv at kd4e.com
>> Sent: Sunday, March 01, 2015 6:52 PM
>> To: 6m;6meter at yahoogroups.com
>> Subject: [50mhz] 6m Point-to-Point Distances?
>>
>> Questions:
>>
>> What's a reasonable expectation of 6m mobile-to-mobile direct
>> communications
>> @ 25w - 50w?
>>
>> How does that change if one station is fixed and the antenna is at 30-35'?
>>
>> What about two fixed locations w/antennas both at 30-35'?
>>
>> I've read about repeaters using 6m as a backbone but what about control
>> signals and/or digital modes, must that be at 220 or higher?
>>
>> I used to know this stuff but you know, lack of use, and all that ...
>> surely
>> not age!  ;-)
>>
>> Thanks - David KD4E
>>
>>
>>
>
> --
> Lance Collister, W7GJ
> (ex WA3GPL, WA1JXN, WA1JXN/C6A, ZF2OC/ZF8, E51SIX, 3D2LR, 5W0GJ, E6M,
> TX5K, KH8/W7GJ)
> P.O. Box 73
> Frenchtown, MT   59834-0073
> USA
> TEL: (406) 626-5728
> QTH: DN27ub
> URL:http://www.bigskyspaces.com/w7gj
> Skype: lanceW7GJ
> 2m DXCC #11/6m DXCC #815
>
> Interested in 6m EME?  Ask me about subscribing to the Magic Band EME
> email group, or just fill in the request box at the bottom of my web
> page (above)!
>
> ______________________________________________________________
> 50mhz mailing list
> Home: http://mailman.qth.net/mailman/listinfo/50mhz
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:50mhz at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>



-- 
Trent Fleming


 My blog on banking topics:

www.bankinginsights.blogspot.com

My web site

        www.trentfleming.com

Follow me on FaceBook
        www.facebook.com/thetechnologyadvisor

Follow me on Twitter
        www.twitter.com/N4DTF
        www.twitter.com/remotedeposit
        www.twitter.com/techadvisor

From qrv at kd4e.com  Mon Mar  2 17:47:38 2015
From: qrv at kd4e.com (qrv at kd4e.com)
Date: Mon, 02 Mar 2015 17:47:38 -0500
Subject: [50mhz] 6m Point-to-Point Distances?
In-Reply-To: <CA+VXS3dRot=7qaTiaNgXPi3AjVhneF5O0ag37-hVrFENnXPzKA@mail.gmail.com>
References: <54F3A604.3090204@kd4e.com>
	<023201d0551c$c47b3b00$4d71b100$@earthlink.net>
	<54F4BD0E.4030701@q.com>
	<CA+VXS3dRot=7qaTiaNgXPi3AjVhneF5O0ag37-hVrFENnXPzKA@mail.gmail.com>
Message-ID: <54F4E88A.1080003@kd4e.com>

Is there a chart anywhere showing typical distances ...

1. Mobile 25-50 W with a mag-mount vertical to same Mobile.

2. Mobile to Base (antenna at 30' & same power levels).

3. Base to Base.

Line-of-site/groundwave.

Thanks - David KD4E

> Thanks for the information.  In the 60s, as a child, I remember my
> father being involved with the American Red Cross as a volunteer.  They
> gave many of those volunteers old Military Surplus radios (large walkie
> talkies) that operated around 49-50 mc.  Dad was never very successful
> communicating more than a few miles, even when outdoors.  Obviously, ERP
> and antennas would have helped.
> 
> 73,
> 
> Trent
> N4DTF


-- 

*David* KD4E
ARES-EC Bulloch County, Nevils, Georgia USA

Safe & Secure Search Engine: duckduckgo.com

Android for Hams: groups.yahoo.com/group/hamdroid
Creative Tech: groups.yahoo.com/group/ham-macguyver
Raspi Alternative: groups.yahoo.com/group/beagleboneblack/

Restored to design-spec at Heaven's gate 1Cor15:22

From cboone at earthlink.net  Mon Mar  2 18:05:41 2015
From: cboone at earthlink.net (Chris Boone)
Date: Mon, 02 Mar 2015 17:05:41 -0600
Subject: [50mhz] 6m Point-to-Point Distances?
Message-ID: <E1YSZrm-0007m7-8o@elasmtp-masked.atl.sa.earthlink.net>

Problem with low band talkies or portables is lack of suitable ground plane for radiation efficiency. My first 6 meter portable was an old Motorola lunch box style with the base loaded whip on it. With maybe 2-5 watts out with GOOD batteries in it, it maybe maybe did 1-2 miles @ most and I was only day! Hooked to an outside antenna it covers a little farther but not much. Only during band openings do it really get out but then that's true of anything on 6 meters LOL
I do have a Ft 690R mark 1 and using its whip, I can talk 5 to 10 miles SSB? at most depending on the other station
Chris

On Mar 2, 2015 3:35 PM, Trent Fleming <trent.fleming at gmail.com> wrote:
>
> Lance, 
>
> Thanks for the information.? In the 60s, as a child, I remember my father 
> being involved with the American Red Cross as a volunteer.? They gave many 
> of those volunteers old Military Surplus radios (large walkie talkies) that 
> operated around 49-50 mc.? Dad was never very successful communicating more 
> than a few miles, even when outdoors.? Obviously, ERP and antennas would 
> have helped. 
>
> 73, 
>
> Trent 
> N4DTF 
>
> On Mon, Mar 2, 2015 at 1:42 PM, Lance Collister, W7GJ <w7gj at q.com> wrote: 
>
> > Hi Art, 
> > 
> > D layer scatter signals on 6m are quite reliable for paths in the 600-1100 
> > mile range between well equipped 6m stations.? That is one of the special 
> > characteristics about propagation on the "Magic Band" ;-)? That is why you 
> > often see reports of QRO stations with high gain antennas being received 
> > regularly by stations that far away.? There is an ERP threshold, though, 
> > below which such signals are not audible, which is why it is not at all 
> > unusual for barefoot stations to be unable to answer big stations they hear 
> > on this propagation mode. 
> > 
> > When JT65 was introduced, I was curious to know if its extra sensitivity ( 
> > 10-15 dB compared to CW) could be used to "level the playing field" between 
> > big stations and barefoot single yagi stations.?? I ran some skeds with 
> > stations 700 - 1200 miles away and found that we could very easily and 
> > repeatedly complete JT65 contacts with each of us running under 100w and a 
> > single yagi. 
> > 
> > GL and VY 73, Lance 
> > 
> > 
> > 
> > 
> > On 3/2/2015 7:12 PM, Art Roberts wrote: 
> > 
> >> Back when I was first licensed (1960) and started working 6 meters, I was 
> >> living outside Denver and South of the National Bureau of Standards. The 
> >> Bureau was working on? a project that ran at 49.5 MHz? They had eight 5 
> >> element yagis at around 30 feet, all lined up and aimed at a station 
> >> outside 
> >> Chicago, that had the same setup. They were investigating tropo scatter, 
> >> and 
> >> if they could maintain constant contact with a KW station and this antenna 
> >> setup. From my memory, it seemed to work as hoped. We could hear the 
> >> Chicago 
> >> station occasionally with our limited antennas. 
> >> 
> >> I think my 72 year old memory has this right. 
> >> 
> >> Art 
> >> W1AER 
> >> Tariffville, CT 
> >> 
> >> 
> >> -----Original Message----- 
> >> From: 50mhz [mailto:50mhz-bounces at mailman.qth.net] On Behalf 
> >> Ofqrv at kd4e.com 
> >> Sent: Sunday, March 01, 2015 6:52 PM 
> >> To: 6m;6meter at yahoogroups.com 
> >> Subject: [50mhz] 6m Point-to-Point Distances? 
> >> 
> >> Questions: 
> >> 
> >> What's a reasonable expectation of 6m mobile-to-mobile direct 
> >> communications 
> >> @ 25w - 50w? 
> >> 
> >> How does that change if one station is fixed and the antenna is at 30-35'? 
> >> 
> >> What about two fixed locations w/antennas both at 30-35'? 
> >> 
> >> I've read about repeaters using 6m as a backbone but what about control 
> >> signals and/or digital modes, must that be at 220 or higher? 
> >> 
> >> I used to know this stuff but you know, lack of use, and all that ... 
> >> surely 
> >> not age!? ;-) 
> >> 
> >> Thanks - David KD4E 
> >> 
> >> 
> >> 
> > 
> > -- 
> > Lance Collister, W7GJ 
> > (ex WA3GPL, WA1JXN, WA1JXN/C6A, ZF2OC/ZF8, E51SIX, 3D2LR, 5W0GJ, E6M, 
> > TX5K, KH8/W7GJ) 
> > P.O. Box 73 
> > Frenchtown, MT?? 59834-0073 
> > USA 
> > TEL: (406) 626-5728 
> > QTH: DN27ub 
> > URL:http://www.bigskyspaces.com/w7gj 
> > Skype: lanceW7GJ 
> > 2m DXCC #11/6m DXCC #815 
> > 
> > Interested in 6m EME?? Ask me about subscribing to the Magic Band EME 
> > email group, or just fill in the request box at the bottom of my web 
> > page (above)! 
> > 
> > ______________________________________________________________ 
> > 50mhz mailing list 
> > Home: http://mailman.qth.net/mailman/listinfo/50mhz 
> > Help: http://mailman.qth.net/mmfaq.htm 
> > Post: mailto:50mhz at mailman.qth.net 
> > 
> > This list hosted by: http://www.qsl.net 
> > Please help support this email list: http://www.qsl.net/donate.html 
> > 
>
>
>
> -- 
> Trent Fleming 
>
>
> My blog on banking topics: 
>
> www.bankinginsights.blogspot.com 
>
> My web site 
>
> ??????? www.trentfleming.com 
>
> Follow me on FaceBook 
> ??????? www.facebook.com/thetechnologyadvisor 
>
> Follow me on Twitter 
> ??????? www.twitter.com/N4DTF 
> ??????? www.twitter.com/remotedeposit 
> ??????? www.twitter.com/techadvisor 
> ______________________________________________________________ 
> 50mhz mailing list 
> Home: http://mailman.qth.net/mailman/listinfo/50mhz 
> Help: http://mailman.qth.net/mmfaq.htm 
> Post: mailto:50mhz at mailman.qth.net 
>
> This list hosted by: http://www.qsl.net 
> Please help support this email list: http://www.qsl.net/donate.html 

From cboone at earthlink.net  Mon Mar  2 18:54:38 2015
From: cboone at earthlink.net (Chris Boone)
Date: Mon, 2 Mar 2015 17:54:38 -0600 (GMT-06:00)
Subject: [50mhz] 6m Point-to-Point Distances?
Message-ID: <20768167.1425340479315.JavaMail.root@wamui-hunyo.atl.sa.earthlink.net>

In a simple way, not really.....terrain and power, type of antennas, noise level, etc all factor in.
LOS can be calculated. Free-space path loss is proportional to the square of the distance between the transmitter and receiver, and also proportional to the square of the frequency of the radio signal. BUT again, if one end is next to a high noise level source and its receiver does not have a noise blanker or adequate one, range can be severely limited.

Hard to place typical range...you can predict how far a signal from a certain HAAT and ERP will travel...but on the rcv end, variables muck it up and make nothing "typical".

The OLD joke lowband 'rule of thumb' was 100 ft + 100 watts = 100 miles. I never found that to be true even 50% of the time

Chris
WB5ITT

-----Original Message-----
>From: "qrv at kd4e.com" <qrv at kd4e.com>
>Sent: Mar 2, 2015 4:47 PM
>To: Trent Fleming <trent.fleming at gmail.com>
>Cc: 6m <50mhz at mailman.qth.net>, "6meter at yahoogroups.com" <6meter at yahoogroups.com>
>Subject: Re: [50mhz] 6m Point-to-Point Distances?
>
>Is there a chart anywhere showing typical distances ...
>
>1. Mobile 25-50 W with a mag-mount vertical to same Mobile.
>
>2. Mobile to Base (antenna at 30' & same power levels).
>
>3. Base to Base.
>
>Line-of-site/groundwave.
>
>Thanks - David KD4E



From af5cc at fidmail.com  Fri Mar 13 20:58:46 2015
From: af5cc at fidmail.com (John Geiger)
Date: Fri, 13 Mar 2015 19:58:46 -0500
Subject: [50mhz] Icom 756 for trade (for HF/VHF/UHF) might sell as well
Message-ID: <CAHZ3kP80=OtzHBqNUFy_5FWj5TirR2BSPr5r7MLRq-z3pStPPw@mail.gmail.com>

I have an Icom 756 original HF/6m transceiver I am looking to trade. This
is the model that does dual receive, so you can listen to 2 frequencies at
once (have to be same band and mode)-great for DX pileups or listening to
the 6m calling frequency while also making 6m QSOs.  It also has a real
time bandscope built in so you can see what is happening on the band. Also
has a built in tuner, DSP, built in memory keyer, audio monitor,
SWR/power/alc meter, speech compression, notch filter, CW audio peaking
filter, pretty much the works.

The radio works great, the case has a few scratches on the bottom, very
light scratch or 2 on the side, and one scrape on the front face plate,
just above the display. The display gets a blue line in it from time to
time (common with this model) that goes away now and then also.

This is a great HF and 6m base radio, and does pretty much what all of the
deluxe models do today-dual receive, bandscope.  It comes with a manual,
power cord, and Heil mic for Icoms.

I am looking to trade it for a HF/VHF/UHF radio like an Icom 706MKIIG,
Yaesu FT857D, Yaesu FT100D, Yaesu FT897D, you get the idea.  I like the 756
a lot but want something a little smaller for mobile work, and also do get
on the satellites with.

I am going to be making a couple of trips in the next couple of weeks and
could do an in-person trade in the I-35, I-80, Chicago, Kansas City, Des
Moines areas.

I would also accept cash offers or other possible trades.

Interested-let me know!

73 John AF5CC

From co8ly at frcuba.co.cu  Tue Mar 17 08:07:07 2015
From: co8ly at frcuba.co.cu (co8ly)
Date: Tue, 17 Mar 2015 08:07:07 -0400
Subject: [50mhz] From CO8LY
Message-ID: <F091306E098B4998A4B5A8D3CECB4720@co8ly>

I need to know so that it dates it is but or less begins the propagation by 
Sporadic-E (Es) .
73.' Eduardo CO8LY



From dx50mhz at iol.it  Tue Mar 17 13:01:48 2015
From: dx50mhz at iol.it (Sergio Roca - IK0FTA)
Date: Tue, 17 Mar 2015 18:01:48 +0100
Subject: [50mhz] From CO8LY
In-Reply-To: <F091306E098B4998A4B5A8D3CECB4720@co8ly>
References: <F091306E098B4998A4B5A8D3CECB4720@co8ly>
Message-ID: <55085DFC.5000003@iol.it>

Hola Eduardo.

ESporadic single or duble hop is easy in may, june, july and august.

For ESporadic multi hop (> 6000km) best period of the year is june-july 
with the season peak around 10 june up 10 july.

TEP conditions (and you have for sure) is during march/april - 
september/october.

A mix of tep/es, anyway, could reserve some big and nice surprise.

F2 propagation (when sun permits) is for february/march and 
october/november) but I think we have to wait until 2023 and have to 
pray for a better sun activities.

73 Sergio, ik0fta

Il 17/03/2015 13.07, co8ly ha scritto:
> I need to know so that it dates it is but or less begins the propagation by
> Sporadic-E (Es) .
> 73.' Eduardo CO8LY
>
>
>
>
> ______________________________________________________________
> 50mhz mailing list
> Home: http://mailman.qth.net/mailman/listinfo/50mhz
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:50mhz at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
>
>
> -----
> Nessun virus nel messaggio.
> Controllato da AVG - www.avg.com
> Versione: 2015.0.5751 / Database dei virus: 4306/9319 -  Data di rilascio: 16/03/15
>


-----
Nessun virus nel messaggio.
Controllato da AVG - www.avg.com
Versione: 2015.0.5751 / Database dei virus: 4306/9319 -  Data di rilascio: 16/03/15


From kb0stn at sbcglobal.net  Sun Mar 22 19:55:43 2015
From: kb0stn at sbcglobal.net (Ray Brown)
Date: Sun, 22 Mar 2015 18:55:43 -0500
Subject: [50mhz] High SWR on a 4-element beam
Message-ID: <1142F3F03B0D4901A986E8659823B0C0@dell332028a83b>

  I finally got around to replacing my rotor cable on my 4-element beam, 
so that I can start playing around again on 6m. To be honest, I don't 
remember which brand or model it is. Anyway, I was trying it out on
just low power and according to my cross-hair meter,  I was getting
a very high SWR at 50.125. So I get my MFJ analyzer out and sweep it,
and I have nearly perfect SWR at 46 and 60 MHz, but very high elsewhere
on the band. The antenna looks okay, the rods are all in place and straight.

  Suggestions?


                Ray, KB0STN






From manualman at juno.com  Sun Mar 22 20:13:08 2015
From: manualman at juno.com (manualman at juno.com)
Date: Sun, 22 Mar 2015 20:13:08 -0400
Subject: [50mhz] High SWR on a 4-element beam
Message-ID: <AABLS8YZ3AXTTE82@smtpout01.vgs.untd.com>

It probably would be helpful to know the make and model and what type of
match is used on the driven element. Could be hardware corrosion,
adjustment, balun problem if used, coax connection broken or
intermittent, or even a coax feedline problem. A close visible inspection
is probably required. Computer speculation repair is probably not going
to work in finding the problem.

Pete, wa2cwa

On Sun, 22 Mar 2015 18:55:43 -0500 "Ray Brown" <kb0stn at sbcglobal.net>
writes:
>   I finally got around to replacing my rotor cable on my 4-element 
> beam, 
> so that I can start playing around again on 6m. To be honest, I 
> don't 
> remember which brand or model it is. Anyway, I was trying it out on
> just low power and according to my cross-hair meter,  I was getting
> a very high SWR at 50.125. So I get my MFJ analyzer out and sweep 
> it,
> and I have nearly perfect SWR at 46 and 60 MHz, but very high 
> elsewhere
> on the band. The antenna looks okay, the rods are all in place and 
> straight.
> 
>   Suggestions?
> 
> 
>                 Ray, KB0STN
> 


From chacuff at cableone.net  Sun Mar 22 20:19:15 2015
From: chacuff at cableone.net (Cecil)
Date: Sun, 22 Mar 2015 19:19:15 -0500
Subject: [50mhz] High SWR on a 4-element beam
In-Reply-To: <1142F3F03B0D4901A986E8659823B0C0@dell332028a83b>
References: <1142F3F03B0D4901A986E8659823B0C0@dell332028a83b>
Message-ID: <C9958A3C-B4B0-4A05-BDD6-CC1E9BF08530@cableone.net>

What caused the rotor cable failure?

If it was lightning related that could be the cause of the antenna failure as well.

Could be a damaged matching device on the antenna....or damaged feedline.

Hard to know without more info.

Cecil
K5DL

Sent using recycled electrons.

> On Mar 22, 2015, at 6:55 PM, "Ray Brown" <kb0stn at sbcglobal.net> wrote:
> 
> I finally got around to replacing my rotor cable on my 4-element beam, so that I can start playing around again on 6m. To be honest, I don't remember which brand or model it is. Anyway, I was trying it out on
> just low power and according to my cross-hair meter,  I was getting
> a very high SWR at 50.125. So I get my MFJ analyzer out and sweep it,
> and I have nearly perfect SWR at 46 and 60 MHz, but very high elsewhere
> on the band. The antenna looks okay, the rods are all in place and straight.
> 
> Suggestions?
> 
> 
>               Ray, KB0STN
> 
> 
> 
> 
> 
> ______________________________________________________________
> 50mhz mailing list
> Home: http://mailman.qth.net/mailman/listinfo/50mhz
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:50mhz at mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html

From w7gj at q.com  Sun Mar 22 20:22:22 2015
From: w7gj at q.com (Lance Collister, W7GJ)
Date: Mon, 23 Mar 2015 00:22:22 +0000
Subject: [50mhz] High SWR on a 4-element beam
In-Reply-To: <1142F3F03B0D4901A986E8659823B0C0@dell332028a83b>
References: <1142F3F03B0D4901A986E8659823B0C0@dell332028a83b>
Message-ID: <550F5CBE.3040509@q.com>

Hi Ray,

Sounds like you have a mismatch and it is being transformed through your coax.  So, 
it is very difficult to tell what is really going on with your antenna.   I suggest 
trying to connect an electrical 1 wavelength piece of low loss coax to your beam, 
aiming it up in the air, and then look at the match.   If you can't get it to look 
like a good 50 ohm match around 50.150, I suggest you consider building a 4 or 5 
element yagi (or larger, if you have room) based on the popular YU7EF designs:

http://yu7ef.com/

You can compare the performance of various popular 6m beams here:

http://www.bigskyspaces.com/w7gj/6mTable.htm

I know the YU7EF designs are quite easy to reproduce and have been built by people 
all over the world with very good results.   GL and VY 73, Lance

On 3/22/2015 11:55 PM, Ray Brown wrote:
>  I finally got around to replacing my rotor cable on my 4-element beam, so that I 
> can start playing around again on 6m. To be honest, I don't remember which brand or 
> model it is. Anyway, I was trying it out on
> just low power and according to my cross-hair meter,  I was getting
> a very high SWR at 50.125. So I get my MFJ analyzer out and sweep it,
> and I have nearly perfect SWR at 46 and 60 MHz, but very high elsewhere
> on the band. The antenna looks okay, the rods are all in place and straight.
>
>  Suggestions?
>
>
>                Ray, KB0STN
>
>
>
>
>
> ______________________________________________________________
> 50mhz mailing list
> Home: http://mailman.qth.net/mailman/listinfo/50mhz
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:50mhz at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>


-- 
Lance Collister, W7GJ
(ex WA3GPL, WA1JXN, WA1JXN/C6A, ZF2OC/ZF8, E51SIX, 3D2LR, 5W0GJ, E6M, TX5K, KH8/W7GJ)
P.O. Box 73
Frenchtown, MT   59834-0073
USA
TEL: (406) 626-5728
QTH: DN27ub
URL: http://www.bigskyspaces.com/w7gj
Skype: lanceW7GJ
2m DXCC #11/6m DXCC #815

Interested in 6m EME?  Ask me about subscribing to the Magic Band EME
email group, or just fill in the request box at the bottom of my web
page (above)!


From w7gj at q.com  Sun Mar 22 20:22:43 2015
From: w7gj at q.com (Lance Collister, W7GJ)
Date: Mon, 23 Mar 2015 00:22:43 +0000
Subject: [50mhz] High SWR on a 4-element beam
In-Reply-To: <1142F3F03B0D4901A986E8659823B0C0@dell332028a83b>
References: <1142F3F03B0D4901A986E8659823B0C0@dell332028a83b>
Message-ID: <550F5CD3.10504@q.com>

Hi Ray,

Sounds like you have a mismatch and it is being transformed through your coax.  So, 
it is very difficult to tell what is really going on with your antenna.   I suggest 
trying to connect an electrical 1 wavelength piece of low loss coax to your beam, 
aiming it up in the air, and then look at the match.   If you can't get it to look 
like a good 50 ohm match around 50.150, I suggest you consider building a 4 or 5 
element yagi (or larger, if you have room) based on the popular YU7EF designs:

http://yu7ef.com/

You can compare the performance of various popular 6m beams here:

http://www.bigskyspaces.com/w7gj/6mTable.htm

I know the YU7EF designs are quite easy to reproduce and have been built by people 
all over the world with very good results.   GL and VY 73, Lance

On 3/22/2015 11:55 PM, Ray Brown wrote:
>  I finally got around to replacing my rotor cable on my 4-element beam, so that I 
> can start playing around again on 6m. To be honest, I don't remember which brand or 
> model it is. Anyway, I was trying it out on
> just low power and according to my cross-hair meter,  I was getting
> a very high SWR at 50.125. So I get my MFJ analyzer out and sweep it,
> and I have nearly perfect SWR at 46 and 60 MHz, but very high elsewhere
> on the band. The antenna looks okay, the rods are all in place and straight.
>
>  Suggestions?
>
>
>                Ray, KB0STN
>
>
>
>
>
> ______________________________________________________________
> 50mhz mailing list
> Home: http://mailman.qth.net/mailman/listinfo/50mhz
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:50mhz at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>


-- 
Lance Collister, W7GJ
(ex WA3GPL, WA1JXN, WA1JXN/C6A, ZF2OC/ZF8, E51SIX, 3D2LR, 5W0GJ, E6M, TX5K, KH8/W7GJ)
P.O. Box 73
Frenchtown, MT   59834-0073
USA
TEL: (406) 626-5728
QTH: DN27ub
URL: http://www.bigskyspaces.com/w7gj
Skype: lanceW7GJ
2m DXCC #11/6m DXCC #815

Interested in 6m EME?  Ask me about subscribing to the Magic Band EME
email group, or just fill in the request box at the bottom of my web
page (above)!


From w7gj at q.com  Sun Mar 22 20:24:03 2015
From: w7gj at q.com (Lance Collister, W7GJ)
Date: Mon, 23 Mar 2015 00:24:03 +0000
Subject: [50mhz] Fwd: [Magic Band EME] 6M Amp for Sale
In-Reply-To: <550F5C61.9040807@bajabb.com>
References: <550F5C61.9040807@bajabb.com>
Message-ID: <550F5D23.9030906@q.com>

FYI


-------- Forwarded Message --------
Subject: 	[Magic Band EME] 6M Amp for Sale
Date: 	Sun, 22 Mar 2015 18:20:49 -0600
From: 	Bob Peterson <w7ut at bajabb.com>
Reply-To: 	w7ut at bajabb.com
To: 	Magic Band EME Group <MagicEME at googlegroups.com>



I have recently placed a Command Technologies VHF-2000 6M amp for
sale on the QTH.com website.?

If anyone is interested, please contact me direct at w7ut at arrl.net.

Thanks.

73,
Bob, W7UT


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From kb0stn at sbcglobal.net  Sun Mar 22 21:32:14 2015
From: kb0stn at sbcglobal.net (Ray Brown)
Date: Sun, 22 Mar 2015 20:32:14 -0500
Subject: [50mhz] High SWR on a 4-element beam
References: <1142F3F03B0D4901A986E8659823B0C0@dell332028a83b>
	<C9958A3C-B4B0-4A05-BDD6-CC1E9BF08530@cableone.net>
Message-ID: <789CA4EFEAEF4516A379B9224CD7334B@dell332028a83b>

  It wasn't lightning. The rotor cable got chewed up by a lawnmower because it had
dropped down to the ground and I didn't know it and my son chewed it up. :-(

                Ray, KB0STN


----- Original Message ----- 
From: "Cecil" <chacuff at cableone.net>
To: "Ray Brown" <kb0stn at sbcglobal.net>
Cc: <50mhz at mailman.qth.net>
Sent: Sunday, March 22, 2015 7:19 PM
Subject: Re: [50mhz] High SWR on a 4-element beam


What caused the rotor cable failure?

If it was lightning related that could be the cause of the antenna failure as well.

Could be a damaged matching device on the antenna....or damaged feedline.

Hard to know without more info.

Cecil
K5DL

Sent using recycled electrons.

> On Mar 22, 2015, at 6:55 PM, "Ray Brown" <kb0stn at sbcglobal.net> wrote:
>
> I finally got around to replacing my rotor cable on my 4-element beam, so that I can start playing around again on 6m. To be 
> honest, I don't remember which brand or model it is. Anyway, I was trying it out on
> just low power and according to my cross-hair meter,  I was getting
> a very high SWR at 50.125. So I get my MFJ analyzer out and sweep it,
> and I have nearly perfect SWR at 46 and 60 MHz, but very high elsewhere
> on the band. The antenna looks okay, the rods are all in place and straight.
>
> Suggestions?
>
>
>               Ray, KB0STN
>
>
>
> 

From chacuff at cableone.net  Sun Mar 22 21:45:02 2015
From: chacuff at cableone.net (Cecil)
Date: Sun, 22 Mar 2015 20:45:02 -0500
Subject: [50mhz] High SWR on a 4-element beam
In-Reply-To: <789CA4EFEAEF4516A379B9224CD7334B@dell332028a83b>
References: <1142F3F03B0D4901A986E8659823B0C0@dell332028a83b>
	<C9958A3C-B4B0-4A05-BDD6-CC1E9BF08530@cableone.net>
	<789CA4EFEAEF4516A379B9224CD7334B@dell332028a83b>
Message-ID: <4B1D74C6-1FE2-4BEA-B130-276C11EB0A14@cableone.net>

Any chance the feedline was damaged and water may have gotten into a nick in the jacket?

Just thinking out loud...

Cecil
K5DL

Sent using recycled electrons.

> On Mar 22, 2015, at 8:32 PM, "Ray Brown" <kb0stn at sbcglobal.net> wrote:
> 
> It wasn't lightning. The rotor cable got chewed up by a lawnmower because it had
> dropped down to the ground and I didn't know it and my son chewed it up. :-(
> 
>               Ray, KB0STN
> 
> 
> ----- Original Message ----- From: "Cecil" <chacuff at cableone.net>
> To: "Ray Brown" <kb0stn at sbcglobal.net>
> Cc: <50mhz at mailman.qth.net>
> Sent: Sunday, March 22, 2015 7:19 PM
> Subject: Re: [50mhz] High SWR on a 4-element beam
> 
> 
> What caused the rotor cable failure?
> 
> If it was lightning related that could be the cause of the antenna failure as well.
> 
> Could be a damaged matching device on the antenna....or damaged feedline.
> 
> Hard to know without more info.
> 
> Cecil
> K5DL
> 
> Sent using recycled electrons.
> 
>> On Mar 22, 2015, at 6:55 PM, "Ray Brown" <kb0stn at sbcglobal.net> wrote:
>> 
>> I finally got around to replacing my rotor cable on my 4-element beam, so that I can start playing around again on 6m. To be honest, I don't remember which brand or model it is. Anyway, I was trying it out on
>> just low power and according to my cross-hair meter,  I was getting
>> a very high SWR at 50.125. So I get my MFJ analyzer out and sweep it,
>> and I have nearly perfect SWR at 46 and 60 MHz, but very high elsewhere
>> on the band. The antenna looks okay, the rods are all in place and straight.
>> 
>> Suggestions?
>> 
>> 
>>              Ray, KB0STN
> ______________________________________________________________
> 50mhz mailing list
> Home: http://mailman.qth.net/mailman/listinfo/50mhz
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:50mhz at mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html

From w0mu at w0mu.com  Sun Mar 22 22:25:33 2015
From: w0mu at w0mu.com (W0MU Mike Fatchett)
Date: Sun, 22 Mar 2015 20:25:33 -0600
Subject: [50mhz] High SWR on a 4-element beam
In-Reply-To: <789CA4EFEAEF4516A379B9224CD7334B@dell332028a83b>
References: <1142F3F03B0D4901A986E8659823B0C0@dell332028a83b>	<C9958A3C-B4B0-4A05-BDD6-CC1E9BF08530@cableone.net>
	<789CA4EFEAEF4516A379B9224CD7334B@dell332028a83b>
Message-ID: <550F799D.5070507@w0mu.com>

Have you done a recalibrate?  Have you taken the coax from the antenna 
directly into the rig or the analyzer?

Mike W0MU

On 3/22/2015 7:32 PM, Ray Brown wrote:
>  It wasn't lightning. The rotor cable got chewed up by a lawnmower 
> because it had
> dropped down to the ground and I didn't know it and my son chewed it 
> up. :-(
>
>                Ray, KB0STN
>
>
> ----- Original Message ----- From: "Cecil" <chacuff at cableone.net>
> To: "Ray Brown" <kb0stn at sbcglobal.net>
> Cc: <50mhz at mailman.qth.net>
> Sent: Sunday, March 22, 2015 7:19 PM
> Subject: Re: [50mhz] High SWR on a 4-element beam
>
>
> What caused the rotor cable failure?
>
> If it was lightning related that could be the cause of the antenna 
> failure as well.
>
> Could be a damaged matching device on the antenna....or damaged feedline.
>
> Hard to know without more info.
>
> Cecil
> K5DL
>
> Sent using recycled electrons.
>
>> On Mar 22, 2015, at 6:55 PM, "Ray Brown" <kb0stn at sbcglobal.net> wrote:
>>
>> I finally got around to replacing my rotor cable on my 4-element 
>> beam, so that I can start playing around again on 6m. To be honest, I 
>> don't remember which brand or model it is. Anyway, I was trying it 
>> out on
>> just low power and according to my cross-hair meter,  I was getting
>> a very high SWR at 50.125. So I get my MFJ analyzer out and sweep it,
>> and I have nearly perfect SWR at 46 and 60 MHz, but very high elsewhere
>> on the band. The antenna looks okay, the rods are all in place and 
>> straight.
>>
>> Suggestions?
>>
>>
>>               Ray, KB0STN
>>
>>
>>
>>
> ______________________________________________________________
> 50mhz mailing list
> Home: http://mailman.qth.net/mailman/listinfo/50mhz
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>
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> Please help support this email list: http://www.qsl.net/donate.html


From w0mu at w0mu.com  Sun Mar 22 22:25:52 2015
From: w0mu at w0mu.com (W0MU Mike Fatchett)
Date: Sun, 22 Mar 2015 20:25:52 -0600
Subject: [50mhz] High SWR on a 4-element beam
In-Reply-To: <789CA4EFEAEF4516A379B9224CD7334B@dell332028a83b>
References: <1142F3F03B0D4901A986E8659823B0C0@dell332028a83b>	<C9958A3C-B4B0-4A05-BDD6-CC1E9BF08530@cableone.net>
	<789CA4EFEAEF4516A379B9224CD7334B@dell332028a83b>
Message-ID: <550F79B0.7000507@w0mu.com>

Does it work on the other bands ok?

Mike W0MU

On 3/22/2015 7:32 PM, Ray Brown wrote:
>  It wasn't lightning. The rotor cable got chewed up by a lawnmower 
> because it had
> dropped down to the ground and I didn't know it and my son chewed it 
> up. :-(
>
>                Ray, KB0STN
>
>
> ----- Original Message ----- From: "Cecil" <chacuff at cableone.net>
> To: "Ray Brown" <kb0stn at sbcglobal.net>
> Cc: <50mhz at mailman.qth.net>
> Sent: Sunday, March 22, 2015 7:19 PM
> Subject: Re: [50mhz] High SWR on a 4-element beam
>
>
> What caused the rotor cable failure?
>
> If it was lightning related that could be the cause of the antenna 
> failure as well.
>
> Could be a damaged matching device on the antenna....or damaged feedline.
>
> Hard to know without more info.
>
> Cecil
> K5DL
>
> Sent using recycled electrons.
>
>> On Mar 22, 2015, at 6:55 PM, "Ray Brown" <kb0stn at sbcglobal.net> wrote:
>>
>> I finally got around to replacing my rotor cable on my 4-element 
>> beam, so that I can start playing around again on 6m. To be honest, I 
>> don't remember which brand or model it is. Anyway, I was trying it 
>> out on
>> just low power and according to my cross-hair meter,  I was getting
>> a very high SWR at 50.125. So I get my MFJ analyzer out and sweep it,
>> and I have nearly perfect SWR at 46 and 60 MHz, but very high elsewhere
>> on the band. The antenna looks okay, the rods are all in place and 
>> straight.
>>
>> Suggestions?
>>
>>
>>               Ray, KB0STN
>>
>>
>>
>>
> ______________________________________________________________
> 50mhz mailing list
> Home: http://mailman.qth.net/mailman/listinfo/50mhz
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:50mhz at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html


From kb0stn at sbcglobal.net  Sun Mar 22 23:33:38 2015
From: kb0stn at sbcglobal.net (Ray Brown)
Date: Sun, 22 Mar 2015 22:33:38 -0500
Subject: [50mhz] High SWR on a 4-element beam
References: <1142F3F03B0D4901A986E8659823B0C0@dell332028a83b>	<C9958A3C-B4B0-4A05-BDD6-CC1E9BF08530@cableone.net><789CA4EFEAEF4516A379B9224CD7334B@dell332028a83b>
	<550F79B0.7000507@w0mu.com>
Message-ID: <BE5674EC06B442DE879E053C33A9C6D2@dell332028a83b>


----- Original Message ----- 
From: "W0MU Mike Fatchett" <w0mu at w0mu.com>


> Does it work on the other bands ok?
> 
> Mike W0MU

  (small chuckle) It's only for 50 MHz. That's why I thought it was interesting that
it was resonant at 47 and at 60 MHz. 

  I ran out of time this weekend.. it's not very high up, I can get it down next weekend
and check it out.


                Ray, KB0STN




From w0mu at w0mu.com  Mon Mar 23 14:03:33 2015
From: w0mu at w0mu.com (W0MU Mike Fatchett)
Date: Mon, 23 Mar 2015 12:03:33 -0600
Subject: [50mhz] High SWR on a 4-element beam
In-Reply-To: <BE5674EC06B442DE879E053C33A9C6D2@dell332028a83b>
References: <1142F3F03B0D4901A986E8659823B0C0@dell332028a83b>	<C9958A3C-B4B0-4A05-BDD6-CC1E9BF08530@cableone.net><789CA4EFEAEF4516A379B9224CD7334B@dell332028a83b>	<550F79B0.7000507@w0mu.com>
	<BE5674EC06B442DE879E053C33A9C6D2@dell332028a83b>
Message-ID: <55105575.6040307@w0mu.com>

Silly me.  I thought this was posted in the SteppIR group.  LOL!

A very curious problem.

Mike W0MU

On 3/22/2015 9:33 PM, Ray Brown wrote:
>
> ----- Original Message ----- From: "W0MU Mike Fatchett" <w0mu at w0mu.com>
>
>
>> Does it work on the other bands ok?
>>
>> Mike W0MU
>
>  (small chuckle) It's only for 50 MHz. That's why I thought it was 
> interesting that
> it was resonant at 47 and at 60 MHz.
>  I ran out of time this weekend.. it's not very high up, I can get it 
> down next weekend
> and check it out.
>
>
>                Ray, KB0STN
>
>
>
> ______________________________________________________________
> 50mhz mailing list
> Home: http://mailman.qth.net/mailman/listinfo/50mhz
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:50mhz at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html