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3) Stop the FS700's lock (in the TRACKING menu set SEARCH
MODE to MANUAL and STOP lock).
4) In CAL MENU 2 (press BSP and FREQ keys simultaneously) set
the oscillator DAC to 0.
5) Measure the 10 MHz output frequency and adjust the oscillator
coarse adjustment screw until the counter reads the same number
as before.
Procedure 2:
1) Make sure the FS700 is not locked to a station.
2) Use the 10 MHz frequency source as the clock for the frequency
counter.
3) In CAL MENU 2 (press BSP and FREQ keys simultaneously) set
the oscillator DAC to 0.
4) Measure the 10 MHz output from the FS700 and adjust the
oscillator coarse adjustment screw until the counter reads within 1 x
10
-8
of 10 MHz.
Bandpass Filter Alignment
This procedure aligns the FS700's 100 kHz bandpass filter. This
alignment should be done only if the bandpass filter check in the
PERFORMANCE TESTS section of the manual is failed.
1) Attach the function generator to the FS700's antenna input through
the antenna terminator. Set the function generator for 10 mV pk-pk
sine wave sweeping from 1 kHz to 200 kHz. Attach the generator
sweep x drive output to the scope x input.
Figure 1.
Bandpass Filter
Response with L115 Out
