[MRCG] HF Ground-to-air comms

[boatanchor at martasystems.com]

Have airplanes. Who's got a radio ?
jc


-----Original Message----- 
From: amillertkx--- via MRCG
Sent: Sunday, September 14, 2014 00:44
To: Tim
Cc: West Coast Military Radio Collectors Group
Subject: Re: [MRCG] HF Ground-to-air comms

A better receiver and antenna directly impacts the ability to hear a weak 
signal so I think that does factor in. It has been my experience that with 
these WW-2 radio what if/ would it work questions are best answered by 
actual field tests. Like when OPE Tom and I tested BC-222 to BC-222 coms and 
also operational tests with TBY's and MAB's. So.....who's got a plane with 
HF AM capabilities? Let's try it.

Sent from my 1944 Westinghouse TBK


> On Sep 13, 2014, at 5:07 PM, Tim <timsamm at gmail.com> wrote:
>
> Hi Andy!
> Well I think the determining factor in ground-to-air is not the aircraft 
> transmitter power or the efficiency of its antenna system - the BC-611 
> still radiates only a very small fraction of that 360 mW transmitter. 
> Maybe a few milliwatts..
> A center loaded 8 foot whip with a high Q coil, on a large vehicle with 
> reasonable ground coupling is only a few percent at best on 80 meters. 
> The BC-611 antenna system is probably much less than that.  A '611 on the 
> ground could certainly hear almost anything nearby - but I think that's 
> only half the problem in a 2-way circuit.  No?
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