HR-2510 bezel, frequency button mods?

[N6TSP]

I have a HR-2510 that I used quite a bit 10 years ago and now it is going to be resurrected for the next sun spot cycle... Sometime along the way it lost its front bezel - the clear window that covers the LCD. Anyone have one?

The next thing is I am wondering if there is a chip change or whatever that helps the frequency changing option buttons make sense. The way my unit is, things are set into frequency bands. I don't want those. I want to just scan from where I am to the high freq. 29Mhz whatever using the mic up down buttons. Sure, it would be nice to start where the SSB band starts... 28300 or whatever. But I'm not that picky. I just hate having to deal with the Channel buttons, the mic buttons, the band button, and the span button... and having it jump to a new freq. range without my intent. Just stay in the SSB band, CW band, FM band, AM band and scan at the granularity I set with the span button...

N6TSP

[K9STH]

I have 2 of the HR-2510 units. On both of them using the "up and down" buttons on the microphone the frequency shifts exactly 10 kHz for each time you push a button. The "band" doesn't change until you cross from one 500 kHz segment to the next.

This 10 kHz per "push of the button" does not change when the "span" button on the front panel is pushed. The "span" button controls the frequency change as you turn the main dial from 100 Hz, to 1 kHz, to 10 kHz.

I do wish that the buttons on the microphone followed the "span" and not fixed 10 kHz steps. Looking at the schematic I do not see any easy modifications to make this change.

Glen, K9STH

[N8YX]

I have 2 of the HR-2510 units. On both of them using the "up and down" buttons on the microphone the frequency shifts exactly 10 kHz for each time you push a button. The "band" doesn't change until you cross from one 500 kHz segment to the next.

This 10 kHz per "push of the button" does not change when the "span" button on the front panel is pushed. The "span" button controls the frequency change as you turn the main dial from 100 Hz, to 1 kHz, to 10 kHz.

I do wish that the buttons on the microphone followed the "span" and not fixed 10 kHz steps. Looking at the schematic I do not see any easy modifications to make this change.

Glen, K9STH

Glen,

There is a mod for this - it involves an add-in circuit with a few TTL chips. I have a copy of the trade mag in which it was originally presented and will dig it out of storage.

FWIW, my '2510 was modded accordingly.