[1000mp] fp 29

[Kostas SV1DPI]

I have seen this on 10m in past.
There is not something fault with your tranceiver or power supply.
Just RF feedback. If you can try with a dummy load and you will see it.
Probably the rf gets into from front side connections. If you have not a 
dummy load, try unplug everything. More suspicious is the front side 
connections. Also maybe the problem is in unsheldied cables (if used). Try 
ferrites but improve your ground. Try the mfj artificial ground to improve 
the ground especially if your cable ground is longer than 3-4 meters.
Kostas sv1dpi

----- Original Message ----- 
From: "ZORAN" <zoran.vukosav at du.htnet.hr>
To: <1000mp at mailman.qth.net>
Sent: Monday, November 13, 2006 3:25 AM
Subject: [1000mp] fp 29


> HAVE QUESTION AND MYBE YOU CAN HELP.
> SO PLEASE:
>
> -USE MARK V (NOT FIELD) WITH EXTERNAL FP-29 PWR SPLY.
> -BEFORE FOUR DAYS (JUST FOR TESTING -PUT UP A MULTI DIPOLE WIT BUX 1:6 
> BALUN).
> -ITs BAD COMPROMISE BUT FOR TEST IS OK.
> -SWR IS WORST ON 3,5 (80m) BUT ABT 1:1,8
> -ON OTHER BANDS IS LOWER.
> -WHEN PUT ABT 150W  FROM MARK V ON 80m ALL IS OK!!,BUT WHEN IM GO TO FULL 
> POWER AND TRY TO TRANSMIT ALL GOING IN OFF MODE.
> -POWER SPLY GO DOWN AND TRANSCEIVER OF COURSE AND BLACKOUT IS FOR COUPLE 
> OF SEC.,AFTER THAT AGAIN ALL COME TO NORMAL.
> -IF I PUT LOWER ON 80m ALL IS OK.
> -ALL THAT IS WITHOUT ANTENNA TUNER
> -ON ALL OTHERS BANDS ALL IS OK AND I CAN GET FULL CLOCK OF POWER,BUT SWR 
> IS BETTER ON UP BANDS.
> -IM INTRESS AND MAYBE YOU HAVE EXPLANE.
> -GROUND IS NOT FANTASTIC.
>
> DO YOU KNOW
> IS IT IN FP 29 SOME PROTECTION CIRCUIT OF OVERCURENT,OR MAYBE RF FROM COAX 
> SHIELD MAKE SOMTHING WITH POWER.
> ON OTHER WHY ONLY ON 80m.
>
> WITH DEEP RESPECT AND GOOD WILL
>
> ZORAN-9A4NC
>
> 73 AND TNX FOR READ
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