[600MRG] KU4XR Maiden Voyage on 630 meters

[Neil Klagge]

Andy, here is what I use, from Ralph Hartwell

http://www.qsl.net/dl4yhf/WSQ/


73
Neil, w0yse, CN85rq
Vancouver, WA

My ham radio websites: http://w0yse.webs.com/ and http://wg2xsv.webs.com
<http://wg2xsv.webs.com>
My Faith website: http://neilsfaith.webs.com/
________________________________
From: 600mrg-bounces at mailman.qth.net <600mrg-bounces at mailman.qth.net> on behalf of Edward R Cole <kl7uw at acsalaska.net>
Sent: Saturday, February 17, 2018 2:59:39 PM
To: Ken Roberson; Andy - KU4XR via 600MRG
Subject: Re: [600MRG] KU4XR Maiden Voyage on 630 meters

If you don't have a scope then a diode and milliameter will suffice as RF ammeter IF you have or make a step-down transformer (toroid works).  That is all that my NDB transmitter has.  Of course the transformer is matched for the output Z of the amplifier.  I run the 50-ohm tap into coax and match the loading coil at other end.

I do have a couple scopes so able check readings into 50-ohm load.

I run 1.4 RF amps which is equivalent to 98w.

73, Ed - KL7UW
Still working on my UHF stuff that keeps the inverted-L on the ground until array is raised by winch (Hazer Lift).

At 01:01 PM 2/17/2018, Ken Roberson via 600MRG wrote:
Andy
Good to hear that ur getting on 630M , If I can help let me know.
You need a scopematch and some kind of O-Scope
Check my web - site for info on the O-Scope that I use with scopematch.
Ken K5DNL

www.k5dnl.com<http://www.k5dnl.com/>


On Saturday, February 17, 2018, 1:55:51 PM CST, Andy - KU4XR via 600MRG <600mrg at mailman.qth.net> wrote:


Greetings all:

I have begun transmitting WSPR on 630 meters today .. as of this post, I have made 8 transmissions and the
transmit converter has not exploded .. It is doubtful that I will have any receptions during daylight, but hoping that
nighttime will yield results.. In short detail, the TPO is 20 watts ( best guess - wattmeter shows 30 watts ) into the
loading coil , I know I can connect a DVM inline and measure PA Current, and I will at some point soon ..
I checked SWR function with a dummy load to be sure the FWD/REF section showed something close..
The SWR showed 1.1 on the dummy load .. When I connected to the loading coil; I was surprised to only
need to move a couple of turns on both the matching, and loading ends of the coil, and the meter is showing 1.2 :1
whether I can trust that or not I don't know, but, it is all I have to use .. I ain't walkin off and leavin it !! still afraid it
might explode on any transmission . I really didn't think I would get this far along, so; I'll see how it goes..

73 all:

Andy - KU4XR
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73, Ed - KL7UW
  http://www.kl7uw.com
<http://www.kl7uw.com/>Dubus-NA Business mail:
  dubususa at gmail.com
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