[MRCA] R-105/ARR-15 mod?

[scottjohnson1 at cox.net]

I am pretty sure Collins intended the ARR-15 to be channelized with the
ART-13, but I have never seen an installation that took advantage of it.  It
works well!

 

Scott

 

From: Jeep Platt <jeepcomms at outlook.com> 
Sent: Friday, June 7, 2024 12:35 PM
To: scottjohnson1 at cox.net; MRCA at mailman.qth.net
Subject: Re: [MRCA] R-105/ARR-15 mod?

 

I see photos of it in P5M, P2V,  and a few other Navy heavies.  Curious, the
T.O. references the Navy and USAF. In the mid 60s, we got a bunch of them at
the MARS station at Dover after a surplus run from Westover.  Never saw one
in USAF use. 

K3HVG

 

Sent from my Verizon, Samsung Galaxy smartphone
Get Outlook for Android <https://aka.ms/AAb9ysg> 

  _____  

From: scottjohnson1 at cox.net <mailto:scottjohnson1 at cox.net>
<scottjohnson1 at cox.net <mailto:scottjohnson1 at cox.net> >
Sent: Friday, June 7, 2024 3:27:38 PM
To: 'Jeep Platt' <jeepcomms at outlook.com <mailto:jeepcomms at outlook.com> >;
MRCA at mailman.qth.net <mailto:MRCA at mailman.qth.net>  <MRCA at mailman.qth.net
<mailto:MRCA at mailman.qth.net> >
Subject: RE: [MRCA] R-105/ARR-15 mod? 

 

Jeep-

I have that configuration as well at my QTH, set up for channelization using
the ART-13 remote control.

Do you know what in what aircraft configuration the ARC-25 was used?

 

Scott W7SVJ

 

From: mrca-bounces at mailman.qth.net <mailto:mrca-bounces at mailman.qth.net>
<mrca-bounces at mailman.qth.net <mailto:mrca-bounces at mailman.qth.net> > On
Behalf Of Jeep Platt
Sent: Friday, June 7, 2024 12:17
To: W2HX <w2hx at w2hx.com <mailto:w2hx at w2hx.com> >; Army-Radios at groups.io
<mailto:Army-Radios at groups.io> ; k2ajr--- via MRCA <mrca at mailman.qth.net
<mailto:mrca at mailman.qth.net> >
Subject: Re: [MRCA] R-105/ARR-15 mod?

 

The mod, in general, appeared in 73 magazine in the 1960's.  It is/was an
unnecessary hack job, I believe. The ARR-15(  ) can be used even with its
very broad IF. An outboard Q-5er works quite well. There is an internal cw
audio filter of some slight usefulness. The mod brought imbedded mode
functions to the front panel. The only mod one would need to possibly do is
attach fil and B+ to the dynamotor pins via a rear panel plug as the organic
mating connector is unobtainium.  The dual PTO design is interesting. My
ART-13/dual ARR-15 (ARC-25) setup now in ops at W1NZR.  

Jeep K3HVG

 

Sent from my Verizon, Samsung Galaxy smartphone
Get Outlook for Android <https://aka.ms/AAb9ysg> 

  _____  

From: mrca-bounces at mailman.qth.net <mailto:mrca-bounces at mailman.qth.net>
<mrca-bounces at mailman.qth.net <mailto:mrca-bounces at mailman.qth.net> > on
behalf of W2HX <w2hx at w2hx.com <mailto:w2hx at w2hx.com> >
Sent: Friday, June 7, 2024 1:46:22 PM
To: Army-Radios at Groups.io <mailto:Army-Radios at Groups.io>
<Army-Radios at groups.io <mailto:Army-Radios at groups.io> >; k2ajr--- via MRCA
<mrca at mailman.qth.net <mailto:mrca at mailman.qth.net> >
Subject: [MRCA] R-105/ARR-15 mod? 

 

Hi all, I was browsing ebay and came across this ARR-15 and noticed someone
ham-mered the front panel with a column of switches down the left side.

https://www.ebay.com/itm/166778324274

 

then I saw another one just like it, but better done!

https://www.ebay.com/itm/115721014547

 

I got to wondering, was this a common mod? Anyone know what it is for (maybe
switching attenuation in/out?) or was this an official mod or something?

 

Thanks

 

73 Eugene W2HX
My Youtube Channel:  <https://www.youtube.com/@w2hx/videos>
https://www.youtube.com/@w2hx/videos

 

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