Powersupply PB 3222 is constructed to
supply the Naval cassette amplifier system
with 24V DC, and any of the Naval active
antennas type Mark 20CA, 22CA or VPA 30
with 15V DC. Pb 3222 has a time-delay for
the antenna cut-out-function thereby
making it possible to connect the remote
cut-out cables directly to transmitters
operating in full-break-in high speed tele-graphy
mode. The antenna will be cut out
approx. 3 sec. after relay release.
Pb 3222 is equipped with a hybrid regu-lator
with following features: High output
current capacity. Internal thermal overload
protection. Output short circuit protection.
Input overvoltage surge rejection. High
regulation capacity. The antenna connec-tion
is fed with 15V DC and current-limited
to approx 400 mA. The HF-signal from the
antenna is coupled to the amplifier inputs
through a DC block