The VFO 1000/Drake is a direct
digital synthesizer programmed to enhance the
operation of the Drake R4 series receivers.
There are 30 tunable memories that are programmed to
provide the functions of VFO, MEMORIES, and GENERAL
COVERAGE reception. The first 7 memories are factory
assigned for the 160 meter to 10 meter ham bands. The
remaining bands are assigned to provide general
coverage of the shortwave bands. They can be easily
user re-assigned in any way you wish up to
30MHz. Some memories could be your favorite net
frequencies, others could be used for general coverage
of the shortwave broadcast bands. The encoder
has 5KHz, 1KHz, 100Hz, and 10Hz tuning steps, and a
optional 1Hz step can replace the 1KHz step. The encoder can be locked to prevent accidental
changes. An LED indicates when the encoder
is active. There is a 50KHz step available in
the setup mode to speed-up frequency entry.
The LCD is blue backlite with white
characters. No mods to the receiver are
required. Installation is by plugging the VFO
1000 output cable into one of the auxiliary crystal
sockets on the back of the receiver.