[ARC5] AN/ARC-5 support for CW

[Ray Chase]

Minor comment, in the early 30's when ARC was creating radios to assist the 
Post Office in "getting the mail through", they were designing TRF radios 
without CW capability because it was not spec'ed.  They did have some MCW 
capability but they were primarily intended for voice and nav signals.
Ray
----- Original Message ----- 
From: "Brian" <brianclarke01 at optusnet.com.au>
To: "AKLDGUY ." <neilb0627 at gmail.com>; "Mike Morrow" <kk5f at arrl.net>
Cc: <Arc5 at mailman.qth.net>
Sent: Thursday, March 24, 2016 10:32 AM
Subject: Re: [ARC5] AN/ARC-5 support for CW


> Hello Neil,
>
> I think you need to specify to whose intention you refer. When Dr Drake 
> was designing these sets in the early 1930s to assist the US post to get 
> air mail through reliably, he probably had no idea of military intentions. 
> It is so easy to slip from what we see to claiming that is what it ought 
> to have been. Ain't necessarily so.
>
> 73 de Brian, VK2GCE.
>
> On Wednesday, March 23, 2016 5:25 AM , you said:
>
> The source?
> https://en.wikipedia.org/wiki/AN/ARC-5
>
> Now admittedly, I rewrote some of the lead (intro) of that
> article to make clear that the AN/ARC-5 could not do CW.
> I did that on the basis of longstanding content elsewhere
> in the article that said:
>
> "The most common AN/ARC-5 receiver remote control box
> is the C-38/ARC-5, which allows control only of audio volume
> of the VHF and MF/HF receivers. No power, mode, or
> frequency controls are present. The C-38 also has controls
> for the R-4A homing receiver. A common AN/ARC-5
> transmitter control box C-30A/ARC-5 has controls for
> selecting the MF/HF transmitter or the VHF transmitter, and
> a switch to select the channel for both the VHF transmitter
> and receiver. Mode controls are normally set for voice and
> covered."
>
> It's obvious from that content that there was no intention to
> provide CW capability, unless for some kind of dire
> emergency where the plane was probably not in the air,
> because the pilot would need to access the MD-7 modulator
> to plug in a key, if he even carried one.
>
> The above implies that the C-38 control box does not even
> allow switching-on of the receiver's BFO.
>
> 73 de Neil ZL1ANM
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