[RFI] Constant carrier on 7025

[Joe]

it's 10 over in SW Wisconsin on a vertical

Joe WB9SBD

On 11/10/2023 3:36 PM, Don Moman VE6JY wrote:
> I can see the 7025 carrier, (spot on 7025)  quite weak in Alberta. I can
> also just detect the 120 hz sidebands, using the perseus and 0.48 rbw...
> No stepped carrier seen in the vicinity.
>
>
> On Fri, Nov 10, 2023 at 2:33 PM David Eckhardt<davearea51a at gmail.com>
> wrote:
>
>> The stepped carrier does not fade due to ionospheric modulation at the same
>> rate or period as the constant carrier.  Are the two sourced from similar
>> locations?  This implies not.
>>
>> Dave - WØLEV
>>
>> On Fri, Nov 10, 2023 at 9:25 PM David Eckhardt<davearea51a at gmail.com>
>> wrote:
>>
>>> 120 Hz, I can forgive due to a badly filtered power supply.  However, the
>>> stepped frequency, always upward, seems to always be there, but it's
>>> presence is not fixed between time slots.
>>>
>>> Dave - WØLEV
>>>
>>> On Fri, Nov 10, 2023 at 9:22 PM Don Kirk<wd8dsb at gmail.com>  wrote:
>>>
>>>> Hi Dave,
>>>>
>>>> I just looked at that signal using an SDR receiver set to an RBW of 9.2
>>>> Hz and I don’t see much but possibly 120 Hz sidebands  but they are at
>>>> least 50 dB down from the main carrier.
>>>>
>>>> Don wd8dsb
>>>>
>>>> On Fri, Nov 10, 2023 at 4:12 PM David Eckhardt<davearea51a at gmail.com>
>>>> wrote:
>>>>
>>>>> Does anyone else hear the discrete upward stepping to the additional
>>>>> constant carrier?
>>>>>
>>>>> Dave - WØLEV
>>>>>
>>>>> On Fri, Nov 10, 2023 at 9:06 PM Steve London<n2icarrl at gmail.com>
>> wrote:
>>>>>> 80 degrees from southwest NM, using 4 element yagi. Not very strong.
>>>>>>
>>>>>> 73,
>>>>>> Steve, N2IC
>>>>>>
>>>>>> On Fri, Nov 10, 2023 at 2:03 PM David Eckhardt <
>> davearea51a at gmail.com>
>>>>>> wrote:
>>>>>>
>>>>>>> There is more than one carrier.  One stays put, the other steps
>>>>> upward,
>>>>>>> reinitializes, then begins again.  Time: 1358 local, 2058 UT.  There
>>>>> is a
>>>>>>> fair amount of weak non-amateur activity on 7.025 MHz.
>>>>>>>
>>>>>>> Receiver:  Icom 7300       Antenna:  450-foot long doublet fed with
>>>>>>>                                                 balanced line, home
>>>>> brew
>>>>>>> bifilar common
>>>>>>>                                                 mode choke, home bres
>>>>>>> L-network.
>>>>>>>
>>>>>>> I'm in the county with a relatively quiet RF environment.
>>>>>>>
>>>>>>> Dave - WØLEV
>>>>>>>
>>>>>>> On Fri, Nov 10, 2023 at 8:54 PM bill steffey ny9h <ny9h at comcast.net
>>>>>>> wrote:
>>>>>>>
>>>>>>>> 10 over on dipole   12 mi South of washington        40 SW  of PGH
>>>>>>>>
>>>>>>>> On 11/10/2023 3:08 PM, Don Kirk wrote:
>>>>>>>>> Just noticed around 3pm EST a strong (S9) constant carrier on
>>>>> 7.025
>>>>>>> MHz
>>>>>>>>> that appears to be skywave.  A very crude quick check with
>>>>> portable
>>>>>>> flag
>>>>>>>>> indicates it’s heading is approximately 130 degrees from my QTH
>>>>> near
>>>>>>>>> Indianapolis.
>>>>>>>>>
>>>>>>>>> Just FYI in case it continues for any length of time.
>>>>>>>>>
>>>>>>>>> 73,
>>>>>>>>> Don wd8dsb
>>>>>>>>> _______________________________________________
>>>>>>>>> RFI mailing list
>>>>>>>>> RFI at contesting.com
>>>>>>>>> http://lists.contesting.com/mailman/listinfo/rfi
>>>>>>>> --
>>>>>>>> link to my QRZ listing
>>>>>>>>
>>>>>>>>
>>>>>>>> https://www.qrz.com/db/ny9h
>>>>>>>>
>>>>>>>>
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>>>>>>>
>>>>>>> --
>>>>>>>
>>>>>>> *Dave - WØLEV*
>>>>>>> _______________________________________________
>>>>>>> RFI mailing list
>>>>>>> RFI at contesting.com
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>>>>>>>
>>>>> --
>>>>>
>>>>> *Dave - WØLEV*
>>>>> _______________________________________________
>>>>> RFI mailing list
>>>>> RFI at contesting.com
>>>>> http://lists.contesting.com/mailman/listinfo/rfi
>>>>>
>>> --
>>>
>>> *Dave - WØLEV*
>>>
>>>
>>>
>> --
>>
>> *Dave - WØLEV*
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