[TenTec] Omni VII first impressions....odd things i.e. SWRvalues

Phil Chambley Sr. k4dpk at comcast.net
Sat Dec 22 19:58:38 EST 2007


Oh, meant to mention....what you're looking for is an intermittent joint or 
connector.

Phil Sr.
k4dpk
----- Original Message ----- 
From: "Phil Chambley Sr." <k4dpk at comcast.net>
To: <alan.n5na at gmail.com>; "Discussion of Ten-Tec Equipment" 
<tentec at contesting.com>
Sent: Saturday, December 22, 2007 7:55 PM
Subject: Re: [TenTec] Omni VII first impressions....odd things i.e. 
SWRvalues


> Mike...
>
> IF you go into it and poke around, start with Pin 4 of J1 on the LPF 
> board,
> work back through L33 and R5 to the BAT41 diode.  That will cover the
> reflected power detecting part of the SWR bridge.
>
> 73
> Phil Chambley, Sr.
> k4dpk
>
> ----- Original Message ----- 
> From: "Alan Sewell" <alan.n5na at gmail.com>
> To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
> Sent: Saturday, December 22, 2007 7:33 PM
> Subject: Re: [TenTec] Omni VII first impressions....odd things i.e.
> SWRvalues
>
>
>> Why don't you open it up and poke around.  Check all the connectors and
>> make sure all the screws are tight.
>>
>> A while ago someone found a toroid bent over on the bandpass board
>> causing a high current shutdown.  Could be something like that.
>>
>> You never know!
>>
>> 73,
>>
>> Alan  N5NA
>>
>> http://www.tentecwiki.org
>>
>>
>>
>> Mike Bryce wrote:
>>> Mike and everyone...
>>>
>>> thought of that... but the meter shows forward power and zero
>>> reflected....
>>>
>>> if the cable were bad, I would not see forward power of 80 watts
>>>
>>>
>>> and ... I changed the cables and the results are the same..
>>>
>>> both cables are new and or have been replaced!!
>>>
>>> the power output meter on the Omni VII shows full 100 watts output.
>>> Switch over to swr and I see anywhere from 1.2 to 9.9 to 1
>>>
>>> and...
>>>
>>> key down for more than 10 seconds, and the swr meter (on the radio)
>>> changes up and down.
>>>
>>> Switch over to power (on the radio) and the power level DOES NOT change!
>>>
>>> If there were a cable problem, that would not be possible as the swr
>>> going up, the power would have to go down and the high current
>>> warning would come on
>>>
>>> speaking of which..
>>>
>>> transmitting into a antenna that is not the correct one for the band,
>>> (my 80 meter dipole with the rig set for 40 meter) will cause the
>>> high current warning and then shuts down the radio.
>>>
>>>
>>>
>>> Mike, WB8VGE
>>> SunLight Energy Systems
>>> The Heathkit Shop
>>> http://www.theheathkitshop.com/
>>> J e e p
>>> o|||||||o
>>> Note: No trees were killed in the sending of this message, but a
>>> large number of electrons were terribly inconvenienced
>>>
>>>
>>>
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>
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