[Lowfer] WH2XHY

[Michael Sapp]

John:  I was thinking about the ground loop transformer thing about a half 
hour after I made the post while on a commute....

That would definitely be something to look at for a 120Hz issue...

Mike wa3tts

----- Original Message ----- 
From: "John Andrews" <w1tag at charter.net>
To: "Discussion of the Lowfer (US, European, & UK) and MedFer bands" 
<lowfer at mailman.qth.net>
Sent: Thursday, February 26, 2015 11:35 AM
Subject: Re: [Lowfer] WH2XHY


> He may have a ground loop problem between the computer and the transmitter 
> audio input. A transformer could be used to break that up. It was an issue 
> early-on here.
>
> John, W1TAG
>
> On 2/26/2015 10:51 AM, Michael Sapp wrote:
>> Garry: OK on all. I'm guessing he may have his audio levels set too high
>> on TX...akin to an over-driven PSK signal effect
>>
>> which is occassionally-to-commonly observed on HF Part 97 stations.
>> Eventually he may "dial it in."  Otherwise, signal strength wise, my
>>
>> NE EWE makes a big difference on his signal level vs my prior listening
>> in the SW direction....
>>
>> Also to report on condx last nite I had four BDQ captures overnite in
>> the 0900~1100 time frame in the low -20s and a few -8 SNRs from XND.
>>
>> I say condx were average to slightly above average for awhile last night.
>>
>> 73, Mike wa3tts
>>
>>
>> ----- Original Message ----- From: "Garry Hess" <k3siw at sbcglobal.net>
>> To: "lowfer list" <lowfer at mailman.qth.net>
>> Sent: Thursday, February 26, 2015 10:37 AM
>> Subject: Re: [Lowfer] WH2XHY
>>
>>
>>> Mike, thanks for the confirmation. I occasionally get multiple decodes
>>> on strong wspr signals caused by 60 Hz harmonics on my sound card. But
>>> WH2XHY is still transmitting and although the only signal coming
>>> through in the daylight I see the +/- 120 Hz spurs. They're in-band as
>>> far as licensing is concerned but figure there must be some general
>>> spurious spec and they probably exceed it. When I first tuned to 474.2
>>> kHz last night I saw a whole picket fence of spurs, but looking later
>>> they had disappeared except for the 120 Hz ones.
>>> --
>>> 73, Garry, K3SIW, EN52ta, Elgin, IL
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