Bearcat 980SSB "PLL Porn"

[brandon7861]

I have a decision to make. Having all A - H channel tables is too much I think. Since I have it rolling over after ch1 or ch40, going from band A to band H would be hard on the encoder. That's hundreds of channels.

If I did 40 up and 40 down, I could just use an LED light as an indicator. Without having touched the VCO slug, it craps out at 27.8MHz. I think even if I do a basic 40 up and 40 down, people will still need to back that slug out just a little.

I also got the fast rotate to do 10k. Rapidly spinning it counterclockwise drops it 10k, rapidly turning it clockwise brings it back to normal. Unfortunately, you'll need to go find your channel again lol.

I am trying to avoid cutting more traces and complicating this for people. Those three traces for the data are bad enough. I'm thinking two or three LED lights. Opinions?

edit: maybe red for 40 up, blue for 40 down and green for -10k. I could use a thin RGB light off one of those sticky light strips.

 

[TM86]

If the issue with tables is they're taking up too much program space you could just go with a single table for the FCC 40 channels. The other "bands" could then be based on a number (representing a starting frequency) with some simple plus/minus math for reading the input from the channel encoder. You're already detecting mode as well so SSB offsets shouldn't be that hard to calculate.

If the issue is the VCO just won't stretch that far, none of the above will help so feel free to disregard it as mindless blathering.

 

[SuperLid]

I have a decision to make. Having all A - H channel tables is too much I think. Since I have it rolling over after ch1 or ch40, going from band A to band H would be hard on the encoder. That's hundreds of channels.

If I did 40 up and 40 down, I could just use an LED light as an indicator. Without having touched the VCO slug, it craps out at 27.8MHz. I think even if I do a basic 40 up and 40 down, people will still need to back that slug out just a little.

I also got the fast rotate to do 10k. Rapidly spinning it counterclockwise drops it 10k, rapidly turning it clockwise brings it back to normal. Unfortunately, you'll need to go find your channel again lol.

I am trying to avoid cutting more traces and complicating this for people. Those three traces for the data are bad enough. I'm thinking two or three LED lights. Opinions?

edit: maybe red for 40 up, blue for 40 down and green for -10k. I could use a thin RGB light off one of those sticky light strips.

I hate to rain on your parade, but that overkill mod, is simple enough for most people. The 980SSB is locked down hard, so something is better than nothing. I really like what that guy did with his mod.

In respect to VCO range, there may be something one could do, with a different varactor swapped in.

In regard to your parade, I don't think any of the other 980SSB modders, have solicited opinions from users, so I suspect, the end result will be more suited to the masses. I have always like the 980SSB, but always thought it could be improved.

SL