[GreenKeys] RTTY MODEM

[Ron Kolarik]

Guess I should have made that more clear.  The ST8000 will generate
a level shift to an FSK exciter or tones for AFSK through an audio input
to a transmitter. Sorry about that.

Ron
K0IDT


----- Original Message ----- 
From: <WA5CAB at cs.com>
To: <rkolarik at neb.rr.com>; <greenkeys at mailman.qth.net>
Sent: Friday, July 29, 2011 12:24 AM
Subject: Re: [GreenKeys] RTTY MODEM


> OK.  Thanks.  Except that FSK implies RF output.  I think what you mean is 
> that it will key a direct FSK exciter or help generate FSK by the method of 
> injecting the AFSK tones into the audio input of an SSB exciter.
> 
> In a message dated 07/28/2011 23:40:20 PM Central Daylight Time, 
> rkolarik at neb.rr.com writes: 
>> The ST8000 wil generate either AFSK or FSK for transmit.....audio tones
>> or level shift.  It will also regenerate tones in the receive direction 
>> and 
>> speed / code conversion.
>> 
>> The 8000 was about $3k new, the one on ebay is a bargain at $195.  About
>> 10 years ago I found one NIB for $650 and couldn't write the check fast 
>> enough.
>> The scope tubes are unobtainium though.....
>> 
>> Ron
>> K0IDT
>> 
>> ----- Original Message ----- 
>> From: <WA5CAB at cs.com>
>> To: <greenkeys at mailman.qth.net>
>> Sent: Thursday, July 28, 2011 10:07 PM
>> Subject: Re: [GreenKeys] RTTY MODEM
>> 
>> 
>> >I'm just curious, as I have never owned or used any of the civilian grade 
>> 
>> >stuff.  Does an ST8000 or 6000 convert binary to AFSK to drive an SSB or 
>> ISB 
>> >transmitter in the transmit direction?  Or just convert AFSK to binary 
>> for 
>> >receive?
>> >
>> >In a message dated 07/28/2011 22:01:34 PM Central Daylight Time, 
>> >DLe9480907 at aol.com writes: 
>> >>HAL ST 8000 on ebay for $195
>> 
> 
> Robert & Susan Downs - Houston
> wa5cab dot com (Web Store)
> MVPA 9480
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