That won't happen unless the D78F0483 microprocessor chip is removed, and a new one is reprogrammed and resoldered in its place. It's only programmed to read 26.965 ~ 27.405. You can't reprogram the existing chip, it'll burn out. To make matters worse, it requires special software and hardware to program. Went thru the datasheet for it, all 203 pages of it. Yikes. Not worth it, IMO. A good old hand-written "roadmap" will have to do for a while.
~Cheers~
Ok, did some more digging into the radio.
The only way to get channels is thru a crystal swap. I studied the datasheet for the PLL they use, and what they're doing is using seperate VCOs for the TX and RX, now you can insert a reference divider on the output pin(s), but there's an output pin for both TX AND RX. That being said, you'd need 2 reference dividers, and at that, you'd have to make sure the TX output and the RX output match. In some radios, they do not match (like the 455khz T/R shift in a Cobra 29 LTD for example), therefore putting 2 reference dividers will not work. Next week I plan on ordering 2 crystals from Jan Crystals, 1 crystal @ 10.6917Mhz for 40 up, and 1 crystal @ 9.7917Mhz for 40 down. I'll see if I can switch out the crystals with diode or relay switching, so perhaps I won't need to make an oscillator to amplify the output of each crystal. Will post new info when I can.
~Cheers~
they're at record low prices too. only $124 a few days ago.
they do sound good on ssb. how's your am performance retro?
While not a powerhouse of a radio, for the money this is one of the best entry level cb/SSB radios going right now. Mine was dead on freq right out of the box and with the wireless mic is a pleasure to use. Haven't ran mine in a while, too many radios, but this one is a keeper even though it can't be modded much.
Incoming Region Produces X3 Solar Flare |
May 15, 2024 @ 14:55 UTC |
Another major solar flare, but this time from an active region just beginning to turn into view off the east limb. It is possible that the group responsible is old AR 3654 from the previous rotation. The latest flare, an X2.99 event just peaked at 14:38 UTC (May 15). Stay tuned |