[GreenKeys] Sat AM RATT fun

[Harold Hallikainen]

Thanks! I fixed that and added your wording about optimum receiver use.

Harold
https://w6iwi.org/rtty/



On Tue, February 13, 2024 7:18 am, John Vendely wrote:
> Looks like a typo in your original message.  The MARK frequency should
> be 7088.575 kHz.  7088.525, as shown below, will give you 900 Hz shift,
> with the center frequency offset 50 Hz low.
>
> Your best bet for receiving would be with the receiver in "CW" mode,
> tuned to 7089 kHz, with IF BW of 1 kHz and BFO offset 2 kHz below the IF
> center freq, fast AGC.  You could, of course, set up the receiver the
> same as the transmitter--in USB mode with virtual carrier of 7087
> kHz--but this is not optimal.  The 3 kHz IF BW is too wide and makes you
> vulnerable to adjacent channel interference (of which there's plenty)
> which will "capture" your AGC and disrupt copy...
>
> 73,
>
> John K9WT
>
> On 2/12/2024 5:25 PM, Harold Hallikainen via GreenKeys wrote:
>> I'm typically not up that early on Saturday, but I'll leave the system
>> on
>> autostart overnight and see if I see anything.
>>
>> My notes say:
>> For 850 Hz shift, there is the Military Net on 7089 kHz center
>> frequency,
>> mark low. So 7088.525 mark, 7089.425 space. That’s 7087 USB with
>> 2000+/-425 tone as per military standard. 0900 EST on Saturdays.
>>
>> Is that right?
>>
>> Thanks!
>>
>> Harold
>> https://w6iwi.org
>>
>> On Sun, February 11, 2024 8:34 am, W2HX wrote:
>>> Who will accept the challenge and come join us Saturday mornings?
>>> https://www.youtube.com/watch?v=xtfPWj3qbRw
>>> Thanks to K3TZJ for the Teletype lesson.
>>>
>>> 73 Eugene W2HX
>>> My Youtube Channel: https://www.youtube.com/@w2hx/videos
>>>
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>>>> Jordan Spencer Cunningham's GreenKeys Search Tool:
>>>> https://teletype.net/gksearch
>>>> 2002-to-present greenkeys archive:
>>>> http://mailman.qth.net/pipermail/greenkeys/
>>>> 1998-to-2001 greenkeys archive:
>>>> http://mailman.qth.net/archive/greenkeys/greenkeys.html
>>>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool:
>>>> http://comcents.com/tty/greenkeyssearch.html
>
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