[TenTec] weird thing

[Bob Good]

Rick,  Have you tried switching between the "RX Ant" input and "Ant2" input 
to see if that makes any difference?  Otherwise, you should be able to 
bandaid it by using the band select output to key an external relay on 80 
and 160 positions disconnecting the bevs during xmit.  I don't have a clue 
as to the root of the problem.  Regards,  Bob
----- Original Message ----- 
From: "Rick Dougherty NQ4I" <nq4i at contesting.com>
To: "Ron Castro" <ronc at sonic.net>; "Discussion of Ten-Tec Equipment" 
<tentec at contesting.com>
Sent: Friday, November 06, 2009 8:25 PM
Subject: Re: [TenTec] weird thing


> Hi Ron...as I reduce the PWR knob on the Orion...it seems to have no
> effect...it still puts out 1.5 KW plus and with only 5 watts of
> drive...thats whats weird...the beverages are nearly 500 ft plus away from
> the transmitt antenna...the beverages come to a K9AY distribution box and
> are distributed to 80m and 160m...the problem is Orion related and only on
> the 160m position...we have feritte beads (8) on each beverage line...the
> problem goes completely away when you deselect the beverage...go 
> figure..de
> Rick NQ4I
>
> On Fri, Nov 6, 2009 at 6:19 PM, Ron Castro <ronc at sonic.net> wrote:
>
>> If there is a problem in the radio, it would most likely be on the A0
>> board,
>> but would be hard to diagnose.  It could simply be that the radio is at a
>> 'hot spot' on the beverage transmission line.  A quick test would be to 
>> add
>> a quarter wavelength of transmission line in series with the RX antenna
>> input and see if that has any effect at all on the situation.
>>
>> A couple of questions:
>>
>>    Have you looked on a spectrum analyzer or checked otherwise to see 
>> what
>> frequency all of that power is at when the drive is at 2 Watts?
>>    What happens when you turn the transmit power off by pressing the PWR
>> button or from the menu?
>>    Do you have the same problem when you use different antennas on the RX
>> input, or even no RX antenna, but RX still selected?
>>    What kind of transmit antenna and how far from the beverage?
>>
>>           Ron   N6IE
>>       www.N6IE.com <http://www.n6ie.com/>
>>
>> ----- Original Message -----
>> From: "Rick Dougherty NQ4I" <nq4i at contesting.com>
>> To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
>>  Sent: Friday, November 06, 2009 2:38 PM
>> Subject: [TenTec] weird thing
>>
>>
>> > Hi all...I have been chasing my tail on a problem relating to 
>> > 160m....it
>> > appears that when you have a rx ant selected some rf is getting into 
>> > the
>> > radio...if I turn the rf drive back to 2 watts , the amp will still put
>> > out
>> > in excess of 1500 watts...if I deselect the rx ant, the out put of the
>> rig
>> > is solid and steady...torroids are used on all rx beverages...8 of them
>> to
>> > be exact...per beverage....but something is going on when the rx ant is
>> > selected in the Orion, and it is directly related to being in line 
>> > versus
>> > out of line..any else experience this problem??
>> >
>> > de Rick NQ4I
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