[ARC5] ARC5 Digest, Vol 195, Issue 67

Sun Apr 26 21:12:32 EDT 2020

I don't know what bombers they might have been.  All our B-52s had "modern" UHF radios.  I was EWO on F models in 1965.

Maybe? on prop single engine aircraft.

D C "Mac" Macdonald
Retired USAF & FAA
Electronic Technician
Oklahoma City, OK

________________________________
From: arc5-bounces at mailman.qth.net <arc5-bounces at mailman.qth.net> on behalf of jbrannig via ARC5 <arc5 at mailman.qth.net>
Sent: Sunday, April 26, 2020 18:29
To: arc5 at mailman.qth.net <arc5 at mailman.qth.net>
Subject: Re: [ARC5] ARC5 Digest, Vol 195, Issue 67

Had a friend working as an electronics tech on bombers out of Thailand (late 60's)
I remember him saying they had SCR-522's.
My bad memory or were they still in use?

Jim

Sent from my Galaxy Tab® A

-------- Original message --------
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Date: 4/26/20 6:56 PM (GMT-05:00)
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Subject: ARC5 Digest, Vol 195, Issue 67

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Today's Topics:

   1. Re: SCR-522: Rethinking The Old Gal (D C _Mac_ Macdonald)
   2. Re: VHF set (Martyn Google)
   3. Re: VHF set (Robert Downs)

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Message: 1
Date: Sun, 26 Apr 2020 21:40:21 +0000
From: D C _Mac_ Macdonald <k2gkk at hotmail.com>
To: Hubert Miller <Kargo_cult at msn.com>, "arc5 at mailman.qth.net"
<arc5 at mailman.qth.net>
Subject: Re: [ARC5] SCR-522: Rethinking The Old Gal
Message-ID:
<DM5PR1801MB18207E9763B2DECBADDBE0CFF1AE0 at DM5PR1801MB1820.namprd18.prod.outlook.com>

Content-Type: text/plain; charset="iso-8859-1"

I never had the 522 receiver, but still have the 522 transmitter I fitted to a 19" rack panel.  I also converted an ARC-1 to VFO but never finished it and it went to landfill after the 3 May 1999 tornado here in OKC.

73 de Mac, K2GKK/5
Since 30 Nov 1953
Oklahoma City, OK
USAF, Retired ('61-'81)
FAA, Retired ('94-'10)

________________________________
From: arc5-bounces at mailman.qth.net <arc5-bounces at mailman.qth.net> on behalf of Hubert Miller <Kargo_cult at msn.com>
Sent: Sunday, April 26, 2020 16:34
To: arc5 at mailman.qth.net <arc5 at mailman.qth.net>
Subject: Re: [ARC5] SCR-522: Rethinking The Old Gal

In the memoir "MIG-15 To Freedom", 1996, No Kum-sok says the KW MIG he flew had a HF radio, unlike U.S. fighter aircraft. He clearly thought the NK aircraft communications inferior.

There was a later book, 2015, and it's stated to have more information from released intelligence. I have not read the later book.

This pilot settled in the U.S., took the name Kenneth Rowe, had a career as engineer in the aviation industry, and is retired in Florida.

-Hue

K7HUE

>Some years ago someone was selling the original VHF radio out of a Mig-15 on ebay.  It was recognizably a Soviet version of the SCR-522.  So Korea probably was the first war where both sides were talking on basically the same radio.  Most USAF aircraft in Korea used the ARC-3 but there were still plenty of SCR-522 in use there.

The ARC-3 was based on the SCR-522, but had the advantage from the US viewpoint of using what we would later call "Line Replaceable Units" so you could easily yank just the receiver or transmitter and swap it out rather than pulling the whole big box.  And you could distribute the weight around the aircraft more easily.

As for a genuine WWII set, while ARC Type 12 are a lot easier to get running, the VHF ARC-5 crystal controlled receiver can just use the set's built in VFO and ignore the crystals.  You don't have rip all the crystal sockets and relays out despite the fact the conversion articles told you to just that - as was done with the example I have.

In any case, Dave is to congratulated.  I don't know of anyone ever using the SCR-522 for amateur use "as is."

Wayne

WB5WSV.
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Message: 2
Date: Mon, 27 Apr 2020 10:35:32 +1200
From: Martyn Google <martyn.seay at gmail.com>
To: D C _Mac_ Macdonald <k2gkk at hotmail.com>
Cc: "arc5 at mailman.qth.net" <arc5 at mailman.qth.net>
Subject: Re: [ARC5] VHF set
Message-ID: <2B6479CA-8058-412E-8B5C-0D9CBC466882 at gmail.com>
Content-Type: text/plain; charset=us-ascii

The late Neil ZL1ANM (SK in December, sadly, he was a good friend, got me started on ARC products) had one of these sets unmodified, had got xtals from a UK supplier and was about to go on the local vhf repeater with it. FMing it was easy, the mechanical switching mechanism worked, a marvel of radio engineering we thought!
The set has gone to another Ham.
73, Martyn ZL3CK
Sent from my iPhone

> On 27/04/2020, at 9:40 AM, D C _Mac_ Macdonald <k2gkk at hotmail.com> wrote:
>

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Message: 3
Date: Sun, 26 Apr 2020 17:55:52 -0500
From: "Robert Downs" <wa5cab at cs.com>
To: "'Martyn Google'" <martyn.seay at gmail.com>, <arc5 at mailman.qth.net>
Subject: Re: [ARC5] VHF set
Message-ID: <002501d61c1d$d68a8580$839f9080$@com>
Content-Type: text/plain; charset="us-ascii"

How did the T-90/ARC-5 differ from the T-23 and T-126/ARC-5?

Robert Downs

-----Original Message-----
From: arc5-bounces at mailman.qth.net [mailto:arc5-bounces at mailman.qth.net] On
Behalf Of Martyn Google
Sent: Sunday, April 26, 2020 17:36
To: D C _Mac_ Macdonald
Cc: arc5 at mailman.qth.net
Subject: Re: [ARC5] VHF set

The late Neil ZL1ANM (SK in December, sadly, he was a good friend, got me
started on ARC products) had one of these sets unmodified, had got xtals
from a UK supplier and was about to go on the local vhf repeater with it.
FMing it was easy, the mechanical switching mechanism worked, a marvel of
radio engineering we thought!
The set has gone to another Ham.
73, Martyn ZL3CK
Sent from my iPhone

> On 27/04/2020, at 9:40 AM, D C _Mac_ Macdonald <k2gkk at hotmail.com> wrote:
>
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End of ARC5 Digest, Vol 195, Issue 67
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