[MRCA] MRCA Digest, Vol 206, Issue 7

Sun Jun 20 10:03:16 EDT 2021

 Have a TRM-1 on my bench and find it very useful!.73, John Allende W4GQT since ~ 1959

    On Saturday, June 19, 2021, 05:32:09 PM EDT, mrca-request at mailman.qth.net <mrca-request at mailman.qth.net> wrote:  

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Today's Topics:

  1. RAT Net / RF-350 (Ray Fantini)
  2. Re: [MMRCG] RAT Net / RF-350 (Nick England)
  3. AN/TRM-1 test set query (Doran Platt)

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Message: 1
Date: Sat, 19 Jun 2021 20:44:35 +0000
From: Ray Fantini <RAFANTINI at salisbury.edu>
To: MMRCG <MMRCG at groups.io>, "mrca at mailman.qth.net"
    <mrca at mailman.qth.net>
Subject: [MRCA] RAT Net / RF-350
Message-ID:
    <DM6PR02MB624903D30FBBD336F35CCD48B80C9 at DM6PR02MB6249.namprd02.prod.outlook.com>

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Played around with RTTY this morning on the Saturday 7087 RAT net, good conditions early working K9WT and K3TZJ and thought I saw KD2GFM in there for a second but never returned?
The object today was to just use the UGC-129, Dovetron and the RF-350 and wired the ON/Standby switch on the Divetron to the PTT line on the RF-350K but what a surprise! Discovered that the Dovetron will not print in the standby mode so had to quickly disable the PTT control line from the Dove and ended up using the UGC-129 for receive copy and cheated and used the computer to send.
The Harris RF-350 has VOX with both Data and voice modes that works on microphone and patch mode, but anyone have an idea why the VOX does not work when using the AUDIO 2 source? It would be easy to just use the AFSK control on the Dove to control the Harris but no love from the VOX in that mode. The computer uses the PATCH mode with that port but I long ago built a control line from the computer that works the PTT circuit in the PATCH mode.
Or do I have to build up a switch to put next to the TTY system for send and receive?

Imagine that if you have the ASFK card for the RF-350 this makes that all unnecessary but don?t ever think I saw just that card around.
expect to be trying again next Saturday 7087 850 shift

Ray F/KA3EKH

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Message: 2
Date: Sat, 19 Jun 2021 16:57:15 -0400
From: Nick England <navy.radio at gmail.com>
To: "MMRCG at groups.io" <MMRCG at groups.io>
Cc: "mrca at mailman.qth.net" <mrca at mailman.qth.net>
Subject: Re: [MRCA] [MMRCG] RAT Net / RF-350
Message-ID:
    <CAB55hNezWDBFZ4erO1NP17T3CoUHxAbE7SUjTN4byBXW3iO9Xg at mail.gmail.com>
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Sorry to miss the fun - I was at a local swap meet -  Brown W1NZR was also
in attendance. I've delivered a couple of Model 28s to him, now just need
to get him on RATT from his new NC QTH.
Cheers,
Nick England K4NYW
www.navy-radio.com

On Sat, Jun 19, 2021 at 4:44 PM Ray Fantini <RAFANTINI at salisbury.edu> wrote:

> Played around with RTTY this morning on the Saturday 7087 RAT net, good
> conditions early working K9WT and K3TZJ and thought I saw KD2GFM in there
> for a second but never returned?
>
> The object today was to just use the UGC-129, Dovetron and the RF-350 and
> wired the ON/Standby switch on the Divetron to the PTT line on the RF-350K
> but what a surprise! Discovered that the Dovetron will not print in the
> standby mode so had to quickly disable the PTT control line from the Dove
> and ended up using the UGC-129 for receive copy and cheated and used the
> computer to send.
>
> The Harris RF-350 has VOX with both Data and voice modes that works on
> microphone and patch mode, but anyone have an idea why the VOX does not
> work when using the AUDIO 2 source? It would be easy to just use the AFSK
> control on the Dove to control the Harris but no love from the VOX in that
> mode. The computer uses the PATCH mode with that port but I long ago built
> a control line from the computer that works the PTT circuit in the PATCH
> mode.
>
> Or do I have to build up a switch to put next to the TTY system for send
> and receive?
>
>
>
> Imagine that if you have the ASFK card for the RF-350 this makes that all
> unnecessary but don?t ever think I saw just that card around.
>
> expect to be trying again next Saturday 7087 850 shift
>
>
>
> Ray F/KA3EKH
>
>
>
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Message: 3
Date: Sat, 19 Jun 2021 17:31:21 -0400 (EDT)
From: Doran Platt <jeepp at comcast.net>
To: "mrca at mailman.qth.net" <MRCA at mailman.qth.net>
Subject: [MRCA] AN/TRM-1 test set query
Message-ID: <163739573.702436.1624138281466 at connect.xfinity.com>
Content-Type: text/plain; charset="utf-8"

I just acquired (why?) a nice Navy TRM-1 HF/VHF test set.  Looks like its going to function.  Anyone have any experience with this unit?  Are they, indeed, useful as a signal generator, etc. for bench work?  Not talking about NBS traceability, just basic usefulness.  TNX
Jeep K3HVG
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End of MRCA Digest, Vol 206, Issue 7
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