[1000mp] RE: Mark V resetting while running an amp on 10M

[Jim Smith]

Hi Bob,

I've found that items plugged into the front panel jacks of the MkV will 
enable any RF floating around the shack to get into the MkV.  Does your 
monitor sound horrible on SSB?  Do you hear a growling sound when 
talking even with the Moni button on and the Moni knob turned all the 
way down?  Unplug or put ferrites on all the leads plugged into the 
front and, in my experience, the RF problems go away.  Well, those 
problems.  I've got so much RF in the shack on 80 that my 2nd monitor 
goes black every time I send cw.

73 de Jim Smith   VE7FO

Bob Main wrote:

> Now that sounds weird!
>
>
> ----- Original Message ----- From: "Charles Wooten NF4A" 
> <nf4a at knology.net>
> To: <lladerman at earthlink.net>; "'All about Yaesu 1000mp'" 
> <1000mp at mailman.qth.net>
> Sent: Saturday, March 05, 2005 6:04 PM
> Subject: RE: [1000mp] RE: Mark V resetting while running an amp on 10M
>
>
> Unplug the key jack on the front and that will take care of it....it 
> did for
> me
>
> NF4A
>
> -----Original Message-----
> From: 1000mp-bounces at mailman.qth.net 
> [mailto:1000mp-bounces at mailman.qth.net]
> On Behalf Of Lou Laderman
> Sent: Saturday, March 05, 2005 4:55 PM
> To: 1000mp at mailman.qth.net
> Subject: [1000mp] RE: Mark V resetting while running an amp on 10M
>
>
> Correction: while running on 10M without the amp, the Mark V reset.
> This seems to be an issue with 10M, and not just with the amp. Any
> suggestions?
>
> Lou, KB0CJ
>
>
>
>> I encountered a very peculiar issue operating 10M with my amplifier
>> (Alpha 87A) today. The Mark V would reset all frequencies to default
>> (28000, 21000, etc) without warning, and the processor and class A
>> switches were turned off as well. I thought I had an issue with RF
>> getting into my computer and back into the radio as I was using a
>> logging program, but after putting chokes on the various lines, and
>> ultimately unhooking the RS232 line from the computer to the Mark V, I
>> had the same issue.  This problem only shows up while running the amp
>> on 10M, and even then, not immediately or with any consistency;
>> rather, it will happen suddenly. When using the Mark V with the amp on
>> other bands, or operating on 10M without the amp, it is fine.
>>
>> I am puzzled and have no idea what to do (other than not run the amp
>> on 10M). I've used my amp many times on 10M and have never had this
>> issue before.  Has anybody experienced this before or have any ideas
>> what might be going on?
>>
>> Lou, KBØCJ
>>
>>
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