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Post by hellcat on Apr 10, 2024 21:16:01 GMT -5
I have a Digital Siltronix 90 by Nomad radio for a Browning Mark 3. I’d like to change the color of the display. If I got a new frequency display is it simply plug and play? or would the new one have to be reprogrammed to match the Browning? If so does anybody have the steps on how to do this?
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Post by 2600 on Apr 12, 2024 23:58:37 GMT -5
The display is made by SanJian. Their model number is PLJ-6LED. It's sold in four colors that I know of, red, blue, green and yellow.
Yeah, you'll have to set it for an offset of 10.695 MHz if you buy one new. Seems to me there's a YT video showing how. The VFO's output frequency is mixed with two other crystals in the transmitter. If each of those has drifted off frequency by a half kHz, the display would be wrong by 1 kHz. If you have an external counter showing the AM carrier frequency you can tweak the offset stored in the counter to compensate and get an accurate frequency display that way. A quartz crystal is literally a moving part, and the two 5 Mhz AM-mode crystals will exhibit some frequency drift after 10,000 hours or so. Those two crystals are running all the time, not just while you're keyed up. Every transmitter is different on this count.
Hardware hookup is plug and play.
73
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Post by hellcat on May 3, 2024 21:20:52 GMT -5
Ok so the offset is 10.695 mhz for the Browning Mark 3, what is the offset for a Sonar FS-23? Would it be 10.625 mhz? Or something different?
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Post by 2600 on May 4, 2024 1:01:49 GMT -5
Yep. Depends on whether you want to select channel 1,2,3 or 4 to use with the VFO. Doesn't have to be those four channels. There are six crystals that each cover 4 channels in a row. The radio won't care which one of those six crystals you choose. These six each mix with one of four in a separate set of crystals. They repeat in sequence, so the same crystal gets used for channel 1,5,9,13,17 and 20. If that crystal goes bad, you won't want to use channel 1. The next one is used for 2,6,10,14,18 and 21, but the display's offset number will be one channel higher if you choose that one. I have the four offset settings for this radio at work, one each for channels 1-4. I'll reach out next time I'm there with a spare moment. 73
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Post by hellcat on May 6, 2024 7:46:31 GMT -5
No problem, if you have a hard time getting ahold of me you could post it here if you don’t care.
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