[Milsurplus] China ? Set

[Meir WF2U]

Hue,

This Chinese set is really not a mystery set. The single-package 81/102E is
the vehicular version of the otherwise familiar to many of us Chinese field
radio. The field version which is where  the transmitter and receiver are in
separate cases with carrying harness is more common.
Otherwise the 81/102E is a copy of the US AN/GRC-9, with some relatively
minor differences of component layout, connectors and some minor circuit
modifications, such as the receiver doesn't use the bias battery like the
GRC-9 receiver. 
On the transmitter side, there is a meter provided on the 102E front panel,
whereas the GRC-9 transmitter has a socket to provide metering functions in
a maintenance facility environment.
Just imagine the GRC-9 transmitter and receiver being in 2 separate
enclosures with lids, instead of the common case.
In fact, In some NATO forces in Europe the GRC-9 receivers were put in
separate cases, with a matching solid-state supply in a similar case, and
used as auxiliary receivers. Telefunken made a lot of these in Germany.
Back to the single case 81/102E: Looks like when the set was manufactured
and used, more emphasis was put on the field version and fewer vehicular
sets were made, hence these are not as common as the separate transmitters
and receivers. The vehicular version had a dynamotor which is rarer than a
hen's tooth nowadays. The field version separate 81/102E's were supplied
with handcrank generators.
The single package radio doesn't even resemble the BC-654, and
architecturally has nothing in common with it. 
It has the GRC-9 architecture, down to the GRC type knobs. 

73, Meir WF2U
Landrum, SC
 

-----Original Message-----
From: milsurplus-bounces at mailman.qth.net
[mailto:milsurplus-bounces at mailman.qth.net] On Behalf Of Hue Miller
Sent: Monday, July 23, 2007 2:02 AM
To: milsurplus at mailman.qth.net
Subject: [Milsurplus] China ? Set

Was just cleaning out some old paper and happened to look at the April 2006
"Horn of Plenty" from the Puget Sound Antique Radio Association. A photo 
inside from a ham radio swapmeet showed a device that looked intriguing but
i couldn't quite place it. After checking out the photos of the China 102E
set
that some of you have bought, which seemed to be available for a while in
steady quantities (all good things come to an end), i was able to determine
that this mystery set was the receiver and transmitter of the 102E in one
package,
this means roughly the size of the TBX stacked on top its battery box. I am
surprised to see an example of this radio in this country. Ken Lakin told me
that
it was not much produced because the China military felt that this made too
heavy a package.  The photo's not too good, but it looks like it may have a
mast
antenna coming off the left side and also some kind of power unit connected
to it via cable, but this doesn't look like a handcrank generator.
Impressive radio.
About BC-654 architecture but loads more knobs. -Hue Miller
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