[1000mp] Mark V Field Rx Anomolies

[Tom Rauch]

> Dear Carl:
>     These "bumps" are a "feature" of the radio.  If you have enough
> noise coming from the antenna, you will not notice them.  I too find
> them disconcerting

I haven't looked at the MKV, but I have other rigs. I'm pretty sure 
the problem is the same.

Most wide-range synthesizers have to switch VCO's because the 
frequency range is too wide for a single VCO. When you reach a 
certain frequency, you hear a pop or click as the synthesizer changes 
to a VCO covering the new range.

In my IC 751A I do not hear it when I move the clarifier across that 
range because does not move the VCO. My guess would be Yaesu is the 
same.

I've never bothered to look at the problem in any rig past my 751A, 
because I care less about a quick little click or pop that occurs 
when tuning past some odd frequency.

By the way, watch that stuff when working split. Some rigs generate 
over-the-air clicks when you receive in one VCO range and transmit in 
another. The 751A can do that, if transmit delay time is not long 
enough for the VCO to settle.  I that consider a major design 
problem, but not the receive click when tuning.73, Tom W8JI
W8JI@contesting.com