Anytone 5555n overactive ALC

[WilliamK]

Not really a mod, but a question.
I think this is an ALC issue, but not really sure.
In the lower part of the 10M phone band -- 28.300-400 for example, the radio will only put out around 15 watts peak. Yes this is using a peak reading watt meter and also a scope. Also the TX audio is very compressed.

As I go up the band towards 29 Mhz, the power increases and the audio "opens up".
This is happening on the amplitude modes. FM seems unaffected. SWR remains constant. All this testing was done into a dummy load. I've looked at the service manual and can't really find anything conclusive. I'm a pretty technically savvy guy...but still no dice.
Any suggestions or possible solutions would be appreciated.

73
Bill

 

[sp5it]

Bad tune.
Radio circuits are narrow, so can work as it should only narrowband.

 

[WilliamK]

Bad tune.
Radio circuits are narrow, so can work as it should only narrowband.

I don't really care if won't work down to 25Mhz.
Just the 10m band. That's all I want.

 

[sp5it]

So tune that radio for 10m

 

[WilliamK]

I don't really care if won't work down to 25Mhz.
Just the 10m band. That's all I want.

No real tuneup procedures in the service manual either.

 

[Shadetree Mechanic]

Here is a link to a thread about the 5555, I think they are the same internally. I own both but have not have the cover off the n yet. Hope this helps.

https://www.worldwidedx.com/threads/anytone-5555-v5-tuning-pots.233112/

 

[WilliamK]

Here is a link to a thread about the 5555, I think they are the same internally. I own both but have not have the cover off the n yet. Hope this helps.

https://www.worldwidedx.com/threads/anytone-5555-v5-tuning-pots.233112/

Thanks.
This *may* help.

 

[Iceburgh]

http://www.cbtricks.com/radios/anytone/at_5555/index.htm

 

[Iceburgh]

These files on cbtricks are for the at-5555. not the at-5555n.