From bcarling at cfl.rr.com  Mon Aug  2 16:35:07 2010
From: bcarling at cfl.rr.com (Bry Carling)
Date: Mon, 02 Aug 2010 16:35:07 -0400
Subject: [QRP] FS: 20m FT243 Crystals
Message-ID: <4C56F3BB.6477.2372E8A@bcarling.cfl.rr.com>

FOR SALE:  Fun 20m Ham Band FT243 Crystals...

Quantity available is (1) unless otherwise stated. These are available 
for $14.00 each plus shipping.

14.020 MHz
14.042 MHz (QTY 10)
14.058 MHz (QTY 2)
14.060 MHz (QTY 10)
14.089 MHz (QTY 4)
14.094 MHz (QTY 2)
14.151 MHz
14.165 MHz
14.186 MHz
14.213 MHz
14.215 MHz
14.219 MHz
14.229 MHz
14.230 MHz
14.233 MHz
14.235 MHz (QTY 2)
14.247 MHz
14.270 MHz
14.275 MHz
14.278 MHz
14.280 MHz
14.300 MHz
14.312 MHz
14.320 MHz
14.335 MHz
14.340 MHz
14.345 MHz

Pictures and Details at:
http://www.af4k.com/crystals.htm

73 de AF4K, Bry Carling

From kd5hcl at yahoo.com  Fri Aug 20 00:37:55 2010
From: kd5hcl at yahoo.com (Glenn)
Date: Thu, 19 Aug 2010 21:37:55 -0700 (PDT)
Subject: [QRP] Which SWR/PWR meter for 1 Watt QRP?
Message-ID: <875099.52695.qm@web58605.mail.re3.yahoo.com>

Are there any swr/pwr meters optimized for use at the 1 watt level? I have a meter which has a low setting of 10 watts, however its really useless at a watt. Even among the cb (which is max 5w , right?) I dont see anything less than 10w full scale(which makes 1w look like a very small deflection due to the logarithmic scale)

If there are no 1 or 2.5 watt full scale meters commercially made, has anyone seen a QST/Handbook project for building one?

73,
  Glenn

-.-


      

From we0h at gmx.com  Fri Aug 20 00:43:43 2010
From: we0h at gmx.com (Mike-WE0H)
Date: Thu, 19 Aug 2010 23:43:43 -0500
Subject: [QRP] Which SWR/PWR meter for 1 Watt QRP?
In-Reply-To: <875099.52695.qm@web58605.mail.re3.yahoo.com>
References: <875099.52695.qm@web58605.mail.re3.yahoo.com>
Message-ID: <4C6E07FF.5060301@gmx.com>

http://www.nogaqrp.org/nogaqrp_kit_ordering_information.htm

NoGaWaTT is selectable for either 2w or 6w full scale.

Mike-WE0H
EN35hj PB237


Glenn wrote:
> Are there any swr/pwr meters optimized for use at the 1 watt level? I have a meter which has a low setting of 10 watts, however its really useless at a watt. Even among the cb (which is max 5w , right?) I dont see anything less than 10w full scale(which makes 1w look like a very small deflection due to the logarithmic scale)
> 
> If there are no 1 or 2.5 watt full scale meters commercially made, has anyone seen a QST/Handbook project for building one?
> 
> 73,
>   Glenn

From we0h at gmx.com  Fri Aug 20 00:44:57 2010
From: we0h at gmx.com (Mike-WE0H)
Date: Thu, 19 Aug 2010 23:44:57 -0500
Subject: [QRP] Which SWR/PWR meter for 1 Watt QRP?
In-Reply-To: <875099.52695.qm@web58605.mail.re3.yahoo.com>
References: <875099.52695.qm@web58605.mail.re3.yahoo.com>
Message-ID: <4C6E0849.2010203@gmx.com>

More info here:
http://www.nogaqrp.org/projects/Nogawatt/kitinfo.html

Mike-WE0H
EN35hj PB237

From dennisberry at att.net  Fri Aug 20 01:13:54 2010
From: dennisberry at att.net (Dennis Berry)
Date: Fri, 20 Aug 2010 05:13:54 -0000
Subject: [QRP] Which SWR/PWR meter for 1 Watt QRP?
References: <875099.52695.qm@web58605.mail.re3.yahoo.com>
Message-ID: <68184F375E8546EA88BE637CA7DE050E@poppop>

Do a google search and you'll find a few designs.  One was the accuprobe, 
one by w7el as I recall.  You need an opamp with diode feedback, or 
something like an AD8307 chip at those low levels.  Here is a page that uses 
an accuprobe design with the nogawatt detection circuit someone else 
mentioned.  I have not built one, but have wondered how to best read low 
power as you are.

http://www.w5usj.com/images/powermeter/nogapwrmtracprb.gif

dennis, nu8s

----- Original Message ----- 
From: "Glenn" <kd5hcl at yahoo.com>
To: <QRP at mailman.qth.net>
Sent: Friday, August 20, 2010 12:37 AM
Subject: [QRP] Which SWR/PWR meter for 1 Watt QRP?


> Are there any swr/pwr meters optimized for use at the 1 watt level? I have 
> a meter which has a low setting of 10 watts, however its really useless at 
> a watt. Even among the cb (which is max 5w , right?) I dont see anything 
> less than 10w full scale(which makes 1w look like a very small deflection 
> due to the logarithmic scale)
>
> If there are no 1 or 2.5 watt full scale meters commercially made, has 
> anyone seen a QST/Handbook project for building one?
>
> 73,
>  Glenn
>
> -.-
>
>
>
> ______________________________________________________________
> QRP mailing list
> Home: http://mailman.qth.net/mailman/listinfo/qrp
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:QRP 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 Kr01a at aol.com  Fri Aug 20 01:20:12 2010
From: Kr01a at aol.com (Kr01a at aol.com)
Date: Fri, 20 Aug 2010 01:20:12 EDT
Subject: [QRP] Which SWR/PWR meter for 1 Watt QRP?
Message-ID: <119a90.4170b096.399f6a8c@aol.com>

Oak Hills Research has an excellent meter with three
scales 0 to 10 watts, 0 to 1 watt and 0 to 100 mw.  Can
get as a kit or as an assembled unit. Unit is the WM-2
 
72, Mac, kr0i
 
 
In a message dated 8/19/2010 11:38:06 P.M. Central Daylight Time,  
kd5hcl at yahoo.com writes:

Are  there any swr/pwr meters optimized for use at the 1 watt level? I have 
a meter  which has a low setting of 10 watts, however its really useless at 
a watt.  Even among the cb (which is max 5w , right?) I dont see anything 
less than 10w  full scale(which makes 1w look like a very small deflection 
due to the  logarithmic scale)

If there are no 1 or 2.5 watt full scale meters  commercially made, has 
anyone seen a QST/Handbook project for building  one?

73,
Glenn

-.-



______________________________________________________________
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Home: http://mailman.qth.net/mailman/listinfo/qrp
Help:  http://mailman.qth.net/mmfaq.htm
Post:  mailto:QRP 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 pulsarxp at embarqmail.com  Fri Aug 20 01:33:32 2010
From: pulsarxp at embarqmail.com (LEE BAHR)
Date: Fri, 20 Aug 2010 00:33:32 -0500
Subject: [QRP] Which SWR/PWR meter for 1 Watt QRP?
In-Reply-To: <119a90.4170b096.399f6a8c@aol.com>
References: <119a90.4170b096.399f6a8c@aol.com>
Message-ID: <61B8F365851044D7825BB44473113FF4@LeePC>

I would say the Oak Hills Research WM-2 meter is the Cadillac of QRP meters, 
100mw, 1w, 10w.  (Not the cheapest meter out there but this thing is done 
first class with a first class meter and cabinet).

Lee, w0vt





> Oak Hills Research has an excellent meter with three
> scales 0 to 10 watts, 0 to 1 watt and 0 to 100 mw.  Can
> get as a kit or as an assembled unit. Unit is the WM-2
>
> 72, Mac, kr0i
>
>
> In a message dated 8/19/2010 11:38:06 P.M. Central Daylight Time,
> kd5hcl at yahoo.com writes:
>
> Are  there any swr/pwr meters optimized for use at the 1 watt level? I 
> have
> a meter  which has a low setting of 10 watts, however its really useless 
> at
> a watt.  Even among the cb (which is max 5w , right?) I dont see anything
> less than 10w  full scale(which makes 1w look like a very small deflection
> due to the  logarithmic scale)
>
> If there are no 1 or 2.5 watt full scale meters  commercially made, has
> anyone seen a QST/Handbook project for building  one?
>
> 73,
> Glenn
>
> -.-
>
>
>
> ______________________________________________________________
> QRP  mailing list
> Home: http://mailman.qth.net/mailman/listinfo/qrp
> Help:  http://mailman.qth.net/mmfaq.htm
> Post:  mailto:QRP at mailman.qth.net
>
> This list hosted by:  http://www.qsl.net
> Please help support this email list:  http://www.qsl.net/donate.html
>
> ______________________________________________________________
> QRP mailing list
> Home: http://mailman.qth.net/mailman/listinfo/qrp
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:QRP 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 wb8rcr at arrl.net  Fri Aug 20 09:36:18 2010
From: wb8rcr at arrl.net (John J. McDonough)
Date: Fri, 20 Aug 2010 09:36:18 -0400
Subject: [QRP] Which SWR/PWR meter for 1 Watt QRP?
In-Reply-To: <61B8F365851044D7825BB44473113FF4@LeePC>
References: <119a90.4170b096.399f6a8c@aol.com>
	<61B8F365851044D7825BB44473113FF4@LeePC>
Message-ID: <1282311378.23390.6.camel@Aidan>

On Fri, 2010-08-20 at 00:33 -0500, LEE BAHR wrote:
> I would say the Oak Hills Research WM-2 meter is the Cadillac of QRP meters, 
> 100mw, 1w, 10w.  (Not the cheapest meter out there but this thing is done 
> first class with a first class meter and cabinet).

The "Cadillac" meter probably has to be the Bird, way too expensive
(IMO) for what you get.

If you want a precision meter, look into the M-Cubed meter
http://www.m3electronix.com/fpm1.html

If you are looking for "good enough", go with the NoGa meter.

73 de WB8RCR



From wb8rcr at arrl.net  Fri Aug 20 10:05:17 2010
From: wb8rcr at arrl.net (John J. McDonough)
Date: Fri, 20 Aug 2010 10:05:17 -0400
Subject: [QRP] Which SWR/PWR meter for 1 Watt QRP?
In-Reply-To: <68184F375E8546EA88BE637CA7DE050E@poppop>
References: <875099.52695.qm@web58605.mail.re3.yahoo.com>
	<68184F375E8546EA88BE637CA7DE050E@poppop>
Message-ID: <1282313117.23390.8.camel@Aidan>

On Mon, 2010-09-20 at 01:13 -0400, Dennis Berry wrote: 
> Do a google search and you'll find a few designs.  One was the accuprobe, 

http://www.k8dd.com/files/ARCI/2007/FDIM_2007_Proceedings-WB8RCR.pdf 

Take a look at pp 57-58.  Not a lot of detail there, but I'm sure Earl
would be happy to share them.

73 de WB8RCR




