2980

[redlght]

Any thoughts on why a 2980 during alignment calls to Connect frequency counter to TP3. Adjust L19 to 17.360 MHz ± 300Hz. and i get reading in the 16MHz ? is the 17Mhz a misprint if not any ideas on whats causing it not to be able to dial in to specs? Thanks.

[MDYoungblood]

If you look at the alignment specs for a Super Star 158EDX, almost the same board, (D board instead of a C), it says TP#3, adjust L19 to read 16.2675 +/- 20hz , that is to set the lower sideband frequency. The one you have seems to be rather loose at 300hz. Double check to make sure the band switch is on the right setting too. Check a couple other radio specs using the EPT690010C board and compare them.

3's

Greg

[redlght]

I got those specs off rci web site

[MDYoungblood]

Yes I know , read them and then started comparing with other radios sharing the same board. I am guessing a misprint, you might want to email RCI and ask.

3's

Greg

[redlght]

No matter what i try ssb audio is distorted but am is fine

[MDYoungblood]

So the audio is bad but is it on frequency, L19 is to adjust lower sideband frequency. What does it read with w 1kc tone and on an external freq counter.

3's

Greg

[redlght]

Only way to describe it is it sounds like 2 or 3 of you are talking at once in chorus

[MDYoungblood]

Does the 2980 have echo, I don't remember, but it sounds like a problem in the echo board, or maybe a modulation kit installed.

3's

Greg

[MDYoungblood]

I talked to a friend today that has a Galaxy 99V, older model like a 2001, and it has the same problem, it has a warble in the audio, it's not voltage related I don't think, but it sounds fine on AM. Let me know any findings. He is trying the same things as you are.

3's

Greg

[redlght]

I shelved it after a ton of attempts just cant seem to grasp the problem still am is fine ssb audio is distorted sounds like reverb in it i have a eagle 5000 that did it and it was 2 ceramic caps that were wrongs values installed at factory but not the case for this rig sorry i got no where on it since i posted last.

[redlght]

A year later and still no luck tracking down the rx and tx every 10KHz radio lol

[sonoma]

redlight have you tried the 2980 service method on cb tricks.

http://www.cbtricks.com/radio ... x_alig.pdf

[443 Arizona]

this is sounding just like the problem my neighbor is having with his 2980, i will be sure that he follows this.

[redlght]

I used the correct alignment procedure, It has some failed part that is causing this. I had another radio the same kind here it was modded for 11 Meters and it was clean all get out.