The
Rockless QRP
Setting Frequency Offset
Here
is a method that works very well for setting the frequency offset on your
ROCKLESS Transceiver.
1. Turn on your communication
transceiver which has digital frequency readout.
Set it for CW operaton.
2. Make sure you have the
antenna or a 50 ohm load on the Rockless.
3. Set the ROCKLESS so the
LED is lighted. (short tap on the button switch)
4. Key the transmitter and
tune your communications receiver to
zero beat the transmitter frequency. (green light goes out when
transmitting.)Jot down the transmitters zero beat frequency you read on you
communications receiver..
5. Now without changing the
Rockless tuning dial, tune down in frequency on your commucications receiver to
pick up the zero beat of the
receiver oscillator. If it is not
700 or 800 khz below the
transmitter zero beat, adjust the green shift frequency trimmer capacitor
located next to the LED.
6. Repeat the process, until
you get as close as you can to 800 KHz between the transmit frequency at zero
beat and the receiverer oscillator at
zero beat.. The Receiver oscillator frequency should, of course, be the lower
frequency.