[TenTec] Orion II Low Output on 12 and 15 m

[Carl Moreschi]

It sounds like a low pass filter relay problem to me.

Carl Moreschi N4PY
121 Little Bell Dr.
Hays, NC 28635
www.n4py.com

On 6/29/2013 10:44 AM, Kim Elmore wrote:
> Nope, that's not it. It's into a 50 ohm dummy load and whether I not I
> use the auto turner, I get the same result.
>
> Kim N5OP
>
>
> On 6/29/2013 9:24 AM, John Bescher wrote:
>> Is there a chance that the SWR is higher on those bands so the Orion
>> II reacts by less power?
>>
>>
>> John Bescher, N4DXI
>>
>>
>>
>> -----Original Message-----
>> From: Kim Elmore <cw_de_n5op at sbcglobal.net>
>> To: Discussion of Ten-Tec Equipment <tentec at contesting.com>
>> Sent: Fri, Jun 28, 2013 11:17 pm
>> Subject: [TenTec] Orion II Low Output on 12 and 15 m
>>
>>
>> I have an Orion II and have noticed over time that its output on the 15
>> and 12 m bands is lower than all the other bands on LCW, UCW and FSK.
>> With the PWR set to 100, the 160 through 20 m bands all show about 105 W
>> output using a 13.8 VDC power supply and a known accurate B&W 334A dummy
>> load. This output is stable regardless of whether the internal tuner is
>> used. Output on the 10 m band is 90 W, but on the 15 and 12 m bands,
>> output is about 70 W. also, the ALC indicator is NOT lit at the full
>> power output setting on either the 15 or 12 m bands, but IS lit on all
>> other bands. The ALC indicator will light on the 15 m band when the PWR
>> setting is adjusted down to 76 or below and when adjusted down to 84 or
>> below on the 12 m band. Any adjustment above this level results in the
>> ALC light being extinguished. On the 12 and 15 m bands any power output
>> is not affected until the PWR setting is at or below these levels. The
>> power indicator meter on the Orion II unit itself indicates about 95 on
>> all bands except 15 and 12 m. On 15 m it indicates 82 and on 12 m it
>> indicates about 88.
>>
>> I had mentioned this earlier and had tried adjusting the internal ALC
>> level. This didn't affect the 12 or 15 m bands but did affect the
>> others. I exercised all of the plugs internal to the radio, but it made
>> no difference. Has anyone else experienced this? If so, what's the fix?
>>
>> Kim N5OP
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>
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