[ARC5] Receiver adapter panels

Paddy Ryan pei7cn at eircom.net
Mon Jul 11 07:02:54 EDT 2016


Interesting..one of mine has an etched silver type with the ''increase 
output'' knob and a phone skt.. MCW etc over a tiny 'lever' type switch but 
the sides are flat and it looks as if it is hardwired in(?)..may be an 
aftermarket from Fair Sales or?..really don't know..a few others have the 
big pins plug on the front and all the rest have the 'normal' plug in..at 
least those that don't have the adapter missing..73 de Pat/EI7CN

-----Original Message----- 
From: arc5-request at mailman.qth.net
Sent: Sunday, July 10, 2016 10:51 PM
To: arc5 at mailman.qth.net
Subject: ARC5 Digest, Vol 150, Issue 13

Send ARC5 mailing list submissions to
arc5 at mailman.qth.net

To subscribe or unsubscribe via the World Wide Web, visit
http://mailman.qth.net/mailman/listinfo/arc5
or, via email, send a message with subject or body 'help' to
arc5-request at mailman.qth.net

You can reach the person managing the list at
arc5-owner at mailman.qth.net

When replying, please edit your Subject line so it is more specific
than "Re: Contents of ARC5 digest..."


Today's Topics:

   1. All 13 "Command Set" Receiver Adapter Panels (Mike Morrow)
   2. Re: All 13 "Command Set" Receiver Adapter Panels (David Stinson)
   3. Re: All 13 "Command Set" Receiver Adapter Panels (J Mcvey)
   4. Re: All 13 "Command Set" Receiver Adapter Panels (Mike Morrow)
   5. Re: All 13 "Command Set" Receiver Adapter Panels (Michael Hanz)
   6. Re: Zero Beat Question (Sheldon Daitch)


----------------------------------------------------------------------

Message: 1
Date: Sat, 9 Jul 2016 23:54:28 -0400 (EDT)
From: Mike Morrow <kk5f at earthlink.net>
To: arc5 at mailman.qth.net
Subject: [ARC5] All 13 "Command Set" Receiver Adapter Panels
Message-ID:
<19541213.1468122869204.JavaMail.wam at elwamui-hybrid.atl.sa.earthlink.net>

Content-Type: text/plain; charset=UTF-8

> ...And that's not even the "good" one with the volume control and switch 
> on it.

That is a completely different unit.

Here is a listing of all 13 possible adapter panels, their nomenclatures, 
and their purposes:

Receiver Remote Control Adapter Panel
RAT        CBY-49109 * (Liaison Set)
RAT-1      CBY-49107 * (Liaison Set)
ARA        CBY-, CCT-49107 * (Standard on all receivers except CBY-, 
CCT-46145)
SCR-274-N  FT-230-A (Standard on all receivers except BC-946-B)
AN/ARC-5   MX-21/ARC-5 (Standard on all non-VHF receivers except R-24/ARC-5)

* CBY-49109 is absolutely identical to CBY-49107 except for nomenclature.

Receiver Local Control Adapter Panel
RAT, RAT-1 CBY-23154 (Liaison Set)
RAV        CBY-23154 (Liaison Set)
ARA        CBY-23154 (Designed for use with RAT, RAT-1, RAV)
SCR-274-N  FT-260-A
AN/ARC-5   C-24/ARC-5

Receiver Accessory Power Adapter Panel
ARA        CBY-, CCT-62036 (Standard on CBY-, CCT-46145 for ZB to ZB-3 VHF 
Homing Adapter)
SCR-274-N  FT-310-A (Standard on BC-946-B for AN/ARR-1 VHF Homing Adapter)
AN/ARC-5   MX-20/ARC-5 (Standard on R-24/ARC-5 for AN/ARR-1 VHF Homing 
Adapter)

Receiver Adapter Panel For Air-Track Instrument Landing System AN/ARN-9 
(abandoned 1944)
ARA        None
SCR-274-N  None
AN/ARC-5   MX-19/ARC-5 (Connects R-23/ARC-5 as localizer to R-43/ARN-9)

Mike / KK5F


------------------------------

Message: 2
Date: Sun, 10 Jul 2016 07:57:27 -0500
From: "David Stinson" <arc5 at ix.netcom.com>
To: <arc5 at mailman.qth.net>
Subject: Re: [ARC5] All 13 "Command Set" Receiver Adapter Panels
Message-ID: <64BC857D34964788B856C78BDB76DEA1 at DaddyPC>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original

Mike, you again prove an invaluable asset to the
community.  Have you ever investigated the
after-market adaptors?  Not the "ham-mod" panels
like those you could get from Fair Radio long ago,
but the third-party adaptors made for the original
sets?  I used to have a couple here somewhere.
I really, really need to let go of more of this stuff.
Father Time is creeping up on me, the old....

----- Original Message ----- 
From: "Mike Morrow" <kk5f at earthlink.net>
Subject: [ARC5] All 13 "Command Set" Receiver Adapter Panels


------------------------------

Message: 3
Date: Sun, 10 Jul 2016 17:32:07 +0000 (UTC)
From: J Mcvey <ac2eu at yahoo.com>
To: <arc5 at mailman.qth.net>
Subject: Re: [ARC5] All 13 "Command Set" Receiver Adapter Panels
Message-ID:
<822937574.540935.1468171927601.JavaMail.yahoo at mail.yahoo.com>
Content-Type: text/plain; charset="utf-8"

Yes, the one with the volume control and? the? "CW-OFF-MCW" switch is 
FT-260A which is very hard to find.There is a large Hamfest coming up next 
week , so maybe I'll get lucky and find one (or two!)Ebay sellers are 
INSANE!



    On Saturday, July 9, 2016 11:55 PM, Mike Morrow <kk5f at earthlink.net> 
wrote:


> ...And that's not even the "good" one with the volume control and switch 
> on it.

That is a completely different unit.

Here is a listing of all 13 possible adapter panels, their nomenclatures, 
and their purposes:

Receiver Remote Control Adapter Panel
RAT? ? ? ? CBY-49109 * (Liaison Set)
RAT-1? ? ? CBY-49107 * (Liaison Set)
ARA? ? ? ? CBY-, CCT-49107 * (Standard on all receivers except CBY-, 
CCT-46145)
SCR-274-N? FT-230-A (Standard on all receivers except BC-946-B)
AN/ARC-5? MX-21/ARC-5 (Standard on all non-VHF receivers except R-24/ARC-5)

* CBY-49109 is absolutely identical to CBY-49107 except for nomenclature.

Receiver Local Control Adapter Panel
RAT, RAT-1 CBY-23154 (Liaison Set)
RAV? ? ? ? CBY-23154 (Liaison Set)
ARA? ? ? ? CBY-23154 (Designed for use with RAT, RAT-1, RAV)
SCR-274-N? FT-260-A
AN/ARC-5? C-24/ARC-5

Receiver Accessory Power Adapter Panel
ARA? ? ? ? CBY-, CCT-62036 (Standard on CBY-, CCT-46145 for ZB to ZB-3 VHF 
Homing Adapter)
SCR-274-N? FT-310-A (Standard on BC-946-B for AN/ARR-1 VHF Homing Adapter)
AN/ARC-5? MX-20/ARC-5 (Standard on R-24/ARC-5 for AN/ARR-1 VHF Homing 
Adapter)

Receiver Adapter Panel For Air-Track Instrument Landing System AN/ARN-9 
(abandoned 1944)
ARA? ? ? ? None
SCR-274-N? None
AN/ARC-5? MX-19/ARC-5 (Connects R-23/ARC-5 as localizer to R-43/ARN-9)

Mike / KK5F
______________________________________________________________
ARC5 mailing list
Home: http://mailman.qth.net/mailman/listinfo/arc5
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:ARC5 at mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html



-------------- next part --------------
An HTML attachment was scrubbed...
URL: 
<http://mailman.qth.net/pipermail/arc5/attachments/20160710/c3a5076b/attachment-0001.html>

------------------------------

Message: 4
Date: Sun, 10 Jul 2016 13:44:20 -0500 (GMT-05:00)
From: Mike Morrow <kk5f at earthlink.net>
To: arc5 at mailman.qth.net
Subject: Re: [ARC5] All 13 "Command Set" Receiver Adapter Panels
Message-ID:
<19994149.1468176261483.JavaMail.wam at elwamui-karabash.atl.sa.earthlink.net>

Content-Type: text/plain; charset=UTF-8

It is a safe bet that you will never find the FT-260-A or C-24/ARC-5 local 
control adapters at any hamfest...now or fifty years ago.  These were almost 
never used in real military installations and so were never made in great 
numbers.  They have always been in great demand since post-WWII surplus 
releases after 1945.

eBay represents the only realistic source.  Things very rare and in demand 
naturally generate high prices from the bidders, **not the sellers**.

In more than fifty years of collecting these sets, and attendance at many 
Dayton Hamventions and regional hamfests, I have acquired only one FT-260-A 
and one C-24/ARC-5.  Both came from...er...ebay!

Mike / KK5F

-----Original Message-----
From: J Mcvey via ARC5
Sent: Jul 10, 2016 12:32 PM

Yes, the one with the volume control and  the  "CW-OFF-MCW" switch is 
FT-260A which is very hard to find.There is a large Hamfest coming up next 
week , so maybe I'll get lucky and find one (or two!)Ebay sellers are 
INSANE!


------------------------------

Message: 5
Date: Sun, 10 Jul 2016 16:21:01 -0400
From: Michael Hanz <aaf-radio-1 at aafradio.org>
To: Mike Morrow <kk5f at arrl.net>, arc5 at mailman.qth.net
Subject: Re: [ARC5] All 13 "Command Set" Receiver Adapter Panels
Message-ID: <42df0fc3-185f-05b3-4d24-3571180c2f95 at aafradio.org>
Content-Type: text/plain; charset=windows-1252; format=flowed

That sounds about right.  On the tunable VHF set at
http://aafradio.org/flightdeck/arc5-4.htm there is another complication
on the C-24/ARC-5 and that is a black lacquered thin steel plate that
blocks off the CW position, since the receivers do not have a BFO.  I
found one at a hamfest in Maryland, but the other came from the 'bay.
Unfortunately, the "manual" for the set is a brief 13 page addendum (my
everlasting thanks to Gordon White) that doesn't contain part numbers,
but I suspect if one was produced, it only had a part number for the
block-off plate...the C-24/ARC-5 being otherwise identical to the HF
version.

Mike - KC4TOS

On 7/10/2016 2:44 PM, Mike Morrow wrote:
> It is a safe bet that you will never find the FT-260-A or C-24/ARC-5 local 
> control adapters at any hamfest...now or fifty years ago.  These were 
> almost never used in real military installations and so were never made in 
> great numbers.  They have always been in great demand since post-WWII 
> surplus releases after 1945.
>
> eBay represents the only realistic source.  Things very rare and in demand 
> naturally generate high prices from the bidders, **not the sellers**.
>
> In more than fifty years of collecting these sets, and attendance at many 
> Dayton Hamventions and regional hamfests, I have acquired only one 
> FT-260-A and one C-24/ARC-5.  Both came from...er...ebay!
>
> Mike / KK5F
>
> -----Original Message-----
> From: J Mcvey via ARC5
> Sent: Jul 10, 2016 12:32 PM
>
> Yes, the one with the volume control and  the  "CW-OFF-MCW" switch is 
> FT-260A which is very hard to find.There is a large Hamfest coming up next 
> week , so maybe I'll get lucky and find one (or two!)Ebay sellers are 
> INSANE!
>



------------------------------

Message: 6
Date: Sun, 10 Jul 2016 21:51:37 +0000
From: Sheldon Daitch <SDAITCH at bbg.gov>
To: "Kenneth G. Gordon" <kgordon2006 at frontier.com>,
"ARC5 at mailman.qth.net" <ARC5 at mailman.qth.net>
Subject: Re: [ARC5] Zero Beat Question
Message-ID:
<DM2PR03MB39768F460BCFFFA8D66A4FEAD3E0 at DM2PR03MB397.namprd03.prod.outlook.com>

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

Also see this discussion on zero beat for SSB operations:

https://calhoun.nps.edu/bitstream/handle/10945/15087/methodforaccurat00dayl.pdf?sequence=1

73


Sheldon


________________________________
From: ARC5 <arc5-bounces at mailman.qth.net> on behalf of Kenneth G. Gordon 
<kgordon2006 at frontier.com>
Sent: Friday, July 8, 2016 6:12 AM
To: ARC5 at mailman.qth.net
Subject: Re: [ARC5] Zero Beat Question

On 8 Jul 2016 at 12:57, Brian wrote:

> Hello folks,
>
> We all seem to be glued to the audio realm.
> Our eyes are much better detectors of slow moving artefacts. So, connect a
> CRO across the AF output, but before any iron, such as an AF OPT - the OPT
> will have virtually zero audio transfer at low frequencies, and absolutely
> zero at 0 Hz; for some mil radio equipment, the lower AF cut-off is set
> around 300 Hz.

That is why we use the rise and fall of the antenna or "band" noise: 
eliminates any issues
with the audio bandpass.

> So, connect the CRO to the hot end of the AF volume control
> or the output of the 2nd detector.

Yes. That works.

>
> If you must use your ears, then set up a stable AF oscillator at a known
> frequency that you can reliably detect, say 800 Hz. Then tune your device 
> to
> be aligned to beat with the 800 Hz AF oscillator. If you don't have a 
> stable
> AF oscillator or a CRO, connect a d'Arsonval meter across the audio output
> at the top of the AF pot or 2nd detector; you are at zero-beat when the
> meter needle stops moving. A DVM is less useful because of internal noise
> artefacts.
> Piano tuners, wind instrument and stringed instrument players

and bagpipe players...

> know this
> technique for accurate tuning. You don't need absolute pitch, just good
> discrimination of relative pitch. I can easily hear within less than 1 Hz
> when tuning my trumpet to 440 Hz, and I can hear within less than 0.1 Hz
> when tuning my piano - I listen for a beat with my tuning device, eg, a
> tuning fork, for at least 13 seconds. A really good piano technician will
> listen for longer. Why the difference between trumpet and piano? I can 
> alter
> the pitch of my trumpet while playing. As luck would have it, presbycusis
> (loss of hearing - mostly with age) affects our hearing of higher
> frequencies, but seldom affects lower frequencies.
>
> There is a problem with using WWV or WWVH: the actually received frequency
> varies because of subtle Earth-bound EM effects - some people call it
> 'libration', although this is usually applied to astronomical 
> observations.
>
> As radio amateurs and mil radio buffs, we really need to ask ourselves, 
> "Why
> do we need such high accuracy?"

We don't NEED it, Brian: we simply enjoy having it or hearing it.

> Art Collins used to specify an accuracy of 1
> Hz in 10 MHz for SSB mil equipment.

Yup. Well, Art was pretty good, but he wasn't God either. ;-)

Ken W7EKB
______________________________________________________________
ARC5 mailing list
Home: http://mailman.qth.net/mailman/listinfo/arc5
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:ARC5 at mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
-------------- next part --------------
An HTML attachment was scrubbed...
URL: 
<http://mailman.qth.net/pipermail/arc5/attachments/20160710/529622cb/attachment.html>

------------------------------

Subject: Digest Footer

_______________________________________________
ARC5 mailing list
ARC5 at mailman.qth.net
http://mailman.qth.net/mailman/listinfo/arc5


------------------------------

End of ARC5 Digest, Vol 150, Issue 13
************************************* 



More information about the ARC5 mailing list