[GreenKeys] RTTY MODEM

WA5CAB at cs.com WA5CAB at cs.com
Fri Jul 29 01:24:01 EDT 2011


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


More information about the GreenKeys mailing list