[GreenKeys] Need favor - RTTY files!

Mon Apr 6 20:34:40 EDT 2026

Minimodem is VERY flexible. I used it to create a 10bps ultrasonic FSK
signal (20 kHz center frequency) for transmission into a big room to be
picked up by devices in the room to tell them which room they are in.

Harold

On Mon, April 6, 2026 5:27 pm, Eric Moore wrote:
> https://manpages.ubuntu.com/manpages/noble/man1/minimodem.1.html
>
>
> minimodem is a Linux program that can create/decode audio to ascii in
> rtty format
>
> Apologies if someone already mentioned in the thread, I did not see it.
>
>
> -Eric
>
>
> On Mon, Apr 6, 2026, 3:31â€¯PM Jeff G via GreenKeys
> <greenkeys at mailman.qth.net>
> wrote:
>
>
>> Ah very cool I didn't realize there was a lot more (or I did and that
>> was 6 months and 12,295 projects and family catastrophes ago).
>>
>>
>> @Harold Hallikainen <harold at w6iwi.org> this was the article/WIKI I
>> think would be cool in John's collection:
>> https://en.wikipedia.org/wiki/Radioteletype#
>>
>>
>> Since this demo/exhibit is sort of around amateur radio history as
>> opposed to the the ship, thats why I thought it would be a good fit, but
>> not like someone is going to sit there and read it. (I could be wrong).
>> I think the
>> history section is neat because I've yet to find otherwise that RTTY
>> really spearheaded the other digital modes in amateur radio. It would
>> have happened sooner or later anyway, but it started with RTTY (well
>> after cw I guess).
>>
>> and @John Spigel <w1an.dxusa at gmail.com> the ships TTYs have gotten a
>> LOT
>> of exercise printing your Battleship NJ files; sometimes I let them play
>>  and come back later. The final prints can reach across the room! Every
>>  single time I run these things, people are very surprised to see them
>> actually working at the ship, and I should look at social media because
>>  nearly everybody immediately pulls out their phones and tapes them
>> printing. Usually I'll pop open #2 (one of the ASR dometops) to let
>> them see the 12,000 moving parts inside. (All this is in addition to
>> letting kids type their names on the other dometop that punches a paper
>> tape for them).
>>
>> I gotta swap our mini-me (the 28 compact) in there with the one Nick
>> gave me so we can have them chat over loop; life has just been a bit
>> tough lately so getting there has been spotty.
>>
>> Jeff KC3GJX and sometimes NJ2BB
>>
>>
>>
>>
>> On Mon, Apr 6, 2026 at 3:40â€¯PM John Spigel via GreenKeys <
>> greenkeys at mailman.qth.net> wrote:
>>
>>> Jeff,
>>> I've been off on other projects for quite a while, but still available
>>>  are the files at:
>>>
>>> https://5bits.net
>>>
>>>
>>> Some are pretty long, but nicely allow you to take lengthy lunch
>>> breaks.
>>>
>>> Enjoy!
>>> 73, John W1AN
>>>
>>>
>>>
>>> On 06-Apr-26 05:10, Jeffrey Golas via GreenKeys wrote:
>>>
>>>> Hey all, for those that created the last batch of RTTY files, would
>>>> it
>>> be possible to create some different test files? Im hoping to be
>>> demoing RTTY on a variety of devices in a couple weeks at VCF East in
>>> NJ. (Whys
>>> this PA guy always in Jersey??)
>>>>
>>>> And apologies if samples were already created, but could we get
>>>> ones
>>> made from the RTTY wiki? Preferably...
>>>>
>>>> Single page ish (wiki overview only?)
>>>>
>>>>
>>>> Overview + History + Early Amateur history combined
>>>>
>>>>
>>>> (If time permits - entire RTTY wiki)
>>>>
>>>>
>>>> I think those would be cool, both 170 and 850, but if time is tight
>>>>
>>> preferred 170 for now as these will be used on mostly amateur gear
>>> and TNCs. Pray all this old junk works LOL.
>>>
>>>>
>>>> I can prob make them but Im trying to piece together a large pile
>>>> of
>>> tras..GEAR and get it all working, like what I do at the ship, so
>>> time is tight between this and my full time job. This would be a huge
>>> help plus Id like to use them at the ship as smaller files. Plus Id
>>> use fldigi and I think you guys were scripting them.
>>>>
>>>> And yes if I can fit it all in my car, a Model 32 will hopefully be
>>>>
>>> tagging along.
>>>>
>>>> Jeff KC3GJX and sometimes NJ2BB
>>>>
>>>>
>>>>
>>>>
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>>>>>> Jordan Spencer Cunningham's GreenKeys Search Tool:
>>>>>>
>>> https://teletype.net/gksearch
>>>
>>>>>> 2002-to-present greenkeys archive:
>>>>>>
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>>>>>>
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>>>
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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/
>>
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>>>>>
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>>
>>>>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool:
>>>>>
>> http://comcents.com/tty/greenkeyssearch.html
>>
>>
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>

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