[1000mp] Problem

[morris wideman]

Any time you run any of the digital modes you are running a full duty cycle mode on any rig. Most likely you should run about 25-30 watts out not 50 and if your power is erratic I would suspect a loose or defective cable jumper or connector possibly. Monitor your SWR and see if it suddenly jumps up causing the rig to reduce pwr out. Hope it is something simple to find.
Morris WA4MIT

> ----- Original Message -----
> From: "Dick White" <whiter26 at sbcglobal.net>
> To: "Post Mark-5" <1000mp at mailman.qth.net>
> Subject: [1000mp] Problem
> Date: Mon, 30 Jan 2006 16:26:01 -0600
> 
> 
> During the BARTG RTTY contest I had this problem during the whole contest.
> Make one or two S&P contacts and the Mark-5 would shut down the power to 10
> watts. The power indicator (and my Diawa meter) was very unsteady and went
> up and down in a radical manor, finally ending down at about 10 watts. It
> seemed to me that the protector circuit was kicking in as it does and
> lowering the power. But, how can one or two contacts make a rig too hot. The
> fan would come on some times if I pushed it, but it did not help. I had made
> several RTTY contacts, rag chews, the previous day and during the previous
> week and no problems. Today I ran a fake contest and COULD NOT duplicate the
> problem. The only thing I did was to tighten the coax , unplug and plug back
> in the connecting cables. The SWR was 1.2:1 or less with my beam.  The rig
> tuner did not make any difference.
> 
> Station: Mark-5 Field (new Sept. 2005), Mosley 4 element beam, RigBlaster
> Plus, Windows 98SE and MixW software. Just 50 watts out, no amp and only the
> internal tuner. I have never had to use a tuner with this beam on 20 meters
> since I got it several years ago as the SWR has always been about 1.2:1.
> Anyone have a similar problem or any ideas about this?  Mail me direct if
> you wish.
> 
> 73....Dick   KS0M
> 
> Richard C. "Dick" White
> Fulton, Missouri 65251
> whiter26 at sbcglobal.net
> 
> Amateur Radio Station - KS0M
> 
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