[R-390] Re chirping CW and low audio plus strange PTO problem.

[Bob Camp]

Hi

The PTO's are all repairable regardless of who made them. Since it's a 
mechanical problem it should be pretty easy to figure out. You may find 
a bunch of what used to be grease or you may find a spring that's past 
it's prime. I doubt you will find anything more complex than that.

Make sure you do a read through one of the manuals before you pull the 
PTO from the radio. It's not real hard but if you do it right it's a 
lot easier to get everything running after you drop it back in.

	Enjoy!

		Bob Camp
		KB8TQ

On Jun 17, 2004, at 9:34 AM, Forrest Myers wrote:

> Hello Bob,
>  Thanks for the PTO information. My PTO is a Progressitron and is 
> extremely
> linear except when going up hill at around the 100 khz point.
>   I did some more testing last night and found that it is worse than 
> I'd
> thought. The worst point is at 105 khz where it is 2 khz low! Going 
> uphill,
> the non linearity starts at 80 khz and gets worse up to 105 khz where 
> it is
> 2 khz low. Then, at 110 khz it is fine at only 200 hz low.  Remember, 
> when
> tuning downhill, the linearity is just fine from 1000 to 0.
>  Do you know if the Progressitron PTO works the same as the Motorola?
>  I'm seriously thinking about taking the thing apart and looking at 
> it. If
> the spring is weak, is it repairable?
>
>  Thanks again.
> Forrest Myers
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