[ARC5] WOW

[Robert Downs]

First, the standard WW-II MF/HF vehicular whip antenna was 15 feet long,
made up of five 3' sections, MS-49 through MS-53 or 3 x MS-116-A plus
MS-117-A and MS-118-A.  Most of the HF transmitters had a variable and/or
tapped loading coil to make up for the less than 1/4 wavelength antennas.  A
few of the officially sanctioned sets could, at a halt, put up a 24'
vertical, adding either MS-54, MS-55 and MS-56 or 3 x MS-54.  Both of these
installations required guys so could not be used on a moving vehicle.

Bear in mind also that at least officially, the HF Command transmitters were
not used in ground vehicles.  Ad hoc installations like the Command Set in
the 'Follow Me' jeep that accounted for most of the traffic on this list
yesterday and the day before were rare.

Robert Downs

-----Original Message-----
From: arc5-bounces at mailman.qth.net [mailto:arc5-bounces at mailman.qth.net] On
Behalf Of Hubert Miller
Sent: Saturday, July 31, 2021 23:44
To: arc5 at mailman.qth.net
Subject: Re: [ARC5] WOW

Something I wondered about, and wiser heads may wish to straighten me out:
How did the presumably 3 - 4 and 4 - 5 and  / or 5 - 7 MHz transmitters work
into
a vehicle antenna? I seem to recall the ARRL Handbook one year in an article
on
using Command Sets transmitters, said 15 foot was the minimum should be used
with the 7 - 9 transmitter. I doubt the Jeep antenna was much over about 10
foot
maximum. 
-Hue Miller