Bad diodes in the SWR/ALC circuit at the rear of the radio.
73
Bob, K4TAX
----- Original Message -----
From: "Dennis Ashworth" <k7fl@arrl.net>
To: <tentec@contesting.com>
Sent: Wednesday, June 08, 2005 12:50 AM
Subject: Re: [TenTec] OMNI VI+ Metering issue
> At 09:21 PM 6/6/2005, Ken Brown wrote:
>
>> > With the OMNI RF output set at 100W on a Bird watt
>> >meter the FWD meter on the OMNI jumps to 25W, then decays down to 10W
>> >over
>> >a couple seconds time.
>> >
>>What does the Bird watt meter do? Stay at a constant 100 watts? Or drop
>>the same as the Omni meter? What about reflected power indicated by the
>>Bird? How about the Ic (Collector Current) on the Omni? Does it stay
>>relatively constant during key down?
>>
>>If the Bird reads 100W and the Omni meter reads only 25W, there is a bit
>>of calibration error somewhere. Scratchy potentiometer or loose or dirty
>>connector inside the Omni?
>>
>>DE N6KB
>
> Great questions Ken. The answers are:
>
> The Bird reads a reflected power of about 2 watts
> The power output reading on the Bird stays a constant 100W, while the Omni
> reads 25 watts, decaying to 15 watts over 2-3 seconds. Then stays steady.
> Collector current correlates well with the Bird readings and stays steady.
>
> Dennis, K7FL
>
>
>
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