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-----Original Message-----
From: COLIN STEVENS <colin@pacdat.net>
To: Military Vehicles List <mil-veh@uller.skylee.com>
Date: 27 February 2000 07:04
Subject: Re: [MV] M38CDN holes in body
>-----Original Message-----
>From: rejan@escape.ca <rejan@escape.ca>
>To: Military Vehicles List <mil-veh@uller.skylee.com>
>Date: Saturday, February 26, 2000 1:00 PM
>Subject: [MV] M38CDN holes in body
>
>
>>Just got told that my father's M38CDN may have been a radio truck, as it
>has
>>holes on top of the rear fender well.
>>
>>What type of radio was used on these Jeeps?
>***** Up until 1960 it was the Wireless Set No. 19 Mk. III usually.
>
One of the American radios of the period is also a possibility.
>>Also, does anybody have diagrams as to the location of any and all possible
>>drilled holes on an M38CDN for any equipment in addition to a radio and
>>related hardware?
>>
>***** Frank Von Rosenstiel in Ontario (Oshawa) has reprints for sale of the
>installation instrcutions for the 19 set into the M38CDN I believe.
>
Louis Meulstee's book Wireless for The Warrior - Vol 2 is also essential reading
and covers the 19 set in great detail.
>>While on the radio subject: can one actually use an older military radio?
>
The 19 set CDN replaced the No. 9 & 11 sets around Jan 42 although British 19
sets were being delivered early in 1941. It is highly unlikely that a M38 would
be fitted with an earlier set and in any event the 19 and its ancillaries are
relatively common whereas you will not see the others except in museums.
>>what is their range?
>***** When I powered up the first 19 set I owned, the first station I
>received was in german! It was Germany! Normally these are short range
>sets - there are actually two sets, one for vehicles within sight of each
>other to talk, and the other for talking over several miles.
>
Officially stated the range on a 8ft rod antenna is 10 miles on R/T (AM) and 15
miles on CW (morse).
Just because you can hear a station it does not necessarily mean he can hear
you. Most likely the German station heard was an AM broadcast station of many
kW with a huge, fixed antenna system. The 19 set generates 1.5W - 2.5W of
transmit power only (AM mode) and then into a very inefficient whip antenna,
however it is possible for these signals to occasionally travel world-wide under
the correct conditions. Year 2000 is an 11 year sun spot maxima year so
unexpected things will be happening.
>>do you need a permit to operate one (in Canada). Any
>>info on this would be appreciated.
>***** In Canada you need a ham licence to operate one. Legally they can
>seize the radio if they catch you transmitting illegally. Why? Because you
>may interfere with airport or police or fire department radios etc. Again,
>talk to ham radio operators near you.
>
The Mk III 19 set will tune the 3.5 - 4MHz ham band and the tiny allocation at
7MHz. The B set was designed for inter-vehicle use only up to 1000yds (if that)
and operates between 229MHz and 241MHz, there are no international ham
allocations here. Many late sets had the B set officially removed.
Richard
(Southampton - England)
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