SSB-Electronic Zeus-1 - Transceiver Frequency Correction

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Software settings

Transceiver frequency correction

The reference oscillator of the transceiver has a certain tolerance, which is also

dependent on the transceiver's temperature. So transmit and receive frequencies

can differ by 10 Hz to 20 Hz at a frequency of 10 MHz.

To correct this deviation, carry

out a calibration with the

frequency correction function.

First open the Filtered Data

window by clicking with the right

mouse button on the S-meter

and click the button FC.

Note: To enable the FC button, the

Frequency Correction window must be

opened, and a correction is possible

only in the CW-L and U modes, up to

a filter width of max. 100 Hz.

The method involves

measuring and correcting the

reference oscillator's frequency

with respect to the transceiver

temperature. The results are stored in the two correction memory cells Measure A

and Measure B, and may be used either individually (buttons Only A, Only B) or

together (Both button) for compensating the temperature instability of the

reference oscillator.

Note: The temperature compensation algorithm (button Both) is available only if the temperature

difference in the measurements A and B is more than 3 degrees.

You need an external reference oscillator with a nominal frequency (5 MHz, 10

MHz or any other) or use one of the reference frequencies on shortwave (4996 kHz,

9996 kHz, etc.)