How simple can it be? As you can see there is one cable that goes from
the PS-200 Power Supply to the rear of the FPM-200. Out of the Cannon connector
are two short RF cables that terminate to female BNC connectors. Yes, those
are your antenna connections. Why two? One is for normal transceiver type
work and connect to your antenna for both receive and transmit. Just like
any transceiver out there today. Back in the days when this transceiver
was manufatured most operators were still using separate receiver and transmitter
combinations. Thus most power amplifiers in those days did not have an
internal bypass relays to switch the big power amplifiers out of the line
when you are receiving. Well Hallicrafters thought of that too! Gosh did
they forget anything on this rig? The second RF cable only carries the
RF transmitter signal for when you use a power amplifier. Then an external
RF relay would be used after the power amp to switch the antenna between
these two RF cable connections. Hey didn't Hallicrafters forget the neccessary
switching voltages to control that external relay? No way, see that 11
pin octal-style (same as on Collins S-Line gear) jack on the back of the
power supply. They have the TR switching control terminals right where
you need them. |