The AM352 amplifier fitted between the RT351 and a
battery to provide a high power portable or clip-in
set. The amplifier covers 20 to 76MHz in three bands
and provides 20 to 30 watts out for 4 to 5 watts of
drive. It is a class-C amplifier so only useful for
FM and CW. It draws just over 2 amps on TX and uses
RF sensing to switch between TX and RX. Harmonics
are better than -55dBc across the band for a good
specimen. The Amp works fine on the "30 to 40MHz"
band down to 28.5MHz in Amateur use.
The switch positions are:
O
Off / Pass through
T
Test (disables RT351 side tone)
30-40MHz
Off / Pass through
40-55MHz
Off / Pass through
55-76MHz
Off / Pass through
The AM352 requires an antenna well matched to 50 ohms, i.e.
a GSA, an EVHF pineapple, or a resonant antenna cut to size.
The UK/PRC352 set can be used with a vehicle whip in
conjunction with a TUUAM and
INITIATE box.
