way too much drive, not nearly enough bang for the buck.
I know plenty all ready talked to him... I don't use amps.Not sure if that's an April fools joke or you just don't know.....
No I have used doc when he was alive. Roger is the other tech that works on these radios..
Password? Thaaaats not how a chipswitch works.Roger Valentine has been working on these radios forever.
He helped me out years ago on a 2510 I installed a chip switch in.
Had the password to allow 12 meters but it would not transmit down there.
73
Jeff
This was many years ago and yes there was a password needed to un block 12 meters.
We were working on a spur problem that the radio had when transmitting on 12.
73
Jeff
With additional modifications to the PLL PCB, the CHIPSWITCH allows full contiguous coverage from 24.800 to 29.999 MHz. (12 through 10 Meters). Modifying these radios for use in the 12 Meter range can be done. Although with the Chipswitch, these radios could be operable to 15 Meters, some spurs near 15 Meters cannot be adjusted out, therefore a password has been added to the Chipswitch program to disallow access beyond 12 Meters at this time.
Password? Thaaaats not how a chipswitch works.
It's an EASY mod the expand the radio. Add a disc cap to the processor board and retune two cans on specific frequencies and you're done.
not quite...
On the back of the processor board pins 34 & 35 needed to be isolated from a trace & pulled to ground by a resistor. I don't recall any needing "re-tune". These things were barn door wide in the synthesizer & the TX / RX mixers. Their 26.000 to 29.999 coverage was actually one of their faults.
See Jim Shorney's info at http://ps-2.kev009.com/jshorney/2510.htm to see the graphical difference between the 5KHz and 3KHz filters as well as some useful narrative.
I'll freely admit that my knowledge of the HR2510 and it's cousins was born out of ignorance. If not for Roger, Tom (SK) Jim and Chris I'd still be clueless. Now after seeing near 100 of these radios and 20 recently I have a clue, kinda![]()