I use exactly the same setup here: an old KAM and the Paragon. I did
have to put a pull-up resistor on the mark/space input to make it work
properly. I also use fans on the XCVR and power supply when running RTTY.
If the receiver or Passband tuning isn't centered right, you will have
to tweak the BFO trimmers. They can change with age, and the rotor
wipers may get a little tarnished, causing frequency shifts. Contact
cleaner and a few rotations of the cap fixed this for me. There is
probably a clever way to adjust the frequencies without a counter.
73,
Bob WB2VUF
Vic Klein wrote:
> I have a 585 Paragon and have used it on CW, SSB, and RTTY. I use a
> Kantronics KAM that I have had for many years with 3 different rigs to
> interface with the computer through the computer RS-232 port, and it keys
> the radio through the FSK jacks while collecting audio at line levels in the
> back. The keying is fine in RTTY mode, the audio decodes nicely and the
> great filtering allows basically single signal reception at 250Hz with
> available audio filtering beyond that. The radio also has the RS-232 board
> and I can easily control it for mode, frequency, filtering, etc., through a
> searate RS-232 port on the computer. Now, all that being said, I do seem to
> have an offset between receive and transmit frequencies is FSK mode. I
> suspect I need to adjust the various BFO trimmers, although the radio is
> dead on frequency for USB/LSB. Not having ready access to a frequency
> counter, I have not had the chance to check this, but otherwise the radio
> works great on this mode.
>
> =Vic=
> WA4THR
> ----------------------------------------------------------------------------
> ------------
> To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
> Subject: [TenTec] Paragon RTTY (FSK)
> From: "JT Croteau" <jt.w6fo@gmail.com>
> Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
> Date: Wed, 5 Apr 2006 05:59:50 -0400
> List-post: <mailto:tentec@contesting.com>
>
> Looking for reports from ops who are using FSK RTTY with their
> Paragons. I've seen a plethora of sites proclaiming how great this
> mode is, along with a ton of interfacing information, when used on
> Omni's and Corsairs but finding little info on this mode when used
> with Paragons.
>
> I'm curious to know how well it works for you and how you have it
> interfaced with the PC.
>
> Thanks
>
> 73
> JT, W6FO
>
>
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