[GreenKeys] RTTY MODEM

Ron Kolarik rkolarik at neb.rr.com
Fri Jul 29 00:39:55 EDT 2011


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 Downs - Houston
> wa5cab dot com (Web Store)
> MVPA 9480
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