[Milsurplus] SCR-299

[ROBERT W. DOWNS]

Henri-Paul,

TM 11-280, with changes and supplements, covers Radio Sets SCR-299-A, -B,=

-C and -D.  TM 11-281, with changes and supplements, covers Radio Sets
SCR-399-A & -B and SCR-499-A & -B.  TM 11-281A covers Radio Set SCR-499-C=
. =

TM 11-281B covers Radio Set AN/GRC-38.  TM 11-264 and 11-264A cover Radio=

Sets AN/GRC-26 and -26A.

SCR-299-(*) consists of Radio Transmitter BC-610-A through -D, Speech
Amplifier BC-614-A through -D, Antenna Tuning Unit  BC-729-(*), Radio
Receivers BC-312-(*) and BC-342-(*) and various accessories mounted in
Truck K-51 (1-1/2 ton Chevrolet 4X4 panel) plus Generator PE-95-(*) mount=
ed
in Trailer K-52 (1 ton).  As originally issued, it covered the frequency
range of 2.0-8.0 MC.  Frequency Conversion Kit MC-516 extended the
operating frequency range from 8.0 to 12.0 MC.  Frequency Conversion Kit
MC-517 extended the range from 8.0 to 18.0 MC, but was not usable with th=
e
radio sets when mounted in Truck K-51 (MC-517 included Antenna Tuning Uni=
t
BC-939-A which is too tall to fit between the top of the BC-610-(*) and t=
he
roof of the truck).

SCR-399-(*) is similar to SCR-299-D except for BC-610-E, BC-614-E,
BC-939-(*), Shelter HO-17-(*) mounted on =

Truck, 2-1/2 ton 6X6 (various models), Junction Box JB-70-(*) in place of=

Table MC-269-A, additional storage or operating chests, and some other
relatively minor changes.  SCR-499-(*) is the same as SCR-399-(*) but
without the shelter and truck (under the AN nomenclature system,
SCR-499-(*) would have been AN/TRC-xxx).

Message text written by Henri-Paul
>There is the TM 11-281 for SCR 399-A and SCR 499-4. The SCR 299 is not o=
n
the same Manuel.
What is the difference between SCR 299 and the two others ?
<

73
Robert Downs
<RWDowns_WA5CAB@compuserve.com>
Houston