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Gordon Gibby
look in your software and see what frequency is set for the crystal.
use a script that puts the oscillator right on a known frequency (best to use the crystal frequency) calculate how far off it is, calculte the real crystal frequency adjust your software. or use the calibration method specific to the firmware you have chosen, if you aren't able to do the above. All mine have been 3-4 kilohertz off from the crystals "stated"' frequency. Putting in the correct constant for the effective true oscillation frequency of the crystal clock is a huge step toward having accurate frequencies. Then set your BFO if needed. This is really a short-kit and you have to apply some of your "ham-smarts" to make things work correctly. Because you studied and passed a ham radio license exam, you're one of the few people who are enabled to make such changes to your own amateur radio gear! Take advantage and develop your knowledge and skills!!! Gordon ________________________________________ From: [email protected] <[email protected]> on behalf of Vince Vielhaber <vev@...> Sent: Friday, November 9, 2018 2:55 PM To: [email protected] Subject: Re: [BITX20] DIGITAL FREQUENCY READOUT To see the 25MHz xtal on mine I had to pull the display. Vince. On 11/09/2018 02:42 PM, Arv Evans wrote: Bill W4NFR-- K8ZW |
