Thanks everyone who had helpful comments.
All I needed to change was that one Kenwood menu setting #38.Just answered a CQ
and though signals weren't strong a US region 4station copied the FSK signal.
Cheers & thanksDavid
> From: w7why@frontier.com
> To: rtty@contesting.com
> Date: Sat, 9 Jul 2011 11:04:50 -0700
> Subject: Re: [RTTY] microHAM & Kenwood TS-450s
>
> Hi Joe
>
> You are true that it looks like it should be on, but it loses something in
> the translation :-)
>
> I use my TS-450 all the time here in FSK and it's set to 'off'. Default is
> on. 73
> Tom W7WHY
>
>
> > Hold down the 'm.in' key while turning on the radio.
> >
> > Check menu number 38. It should be set to 'off' for normal FSK.
>
> If this is true (and I have no reason to doubt Tom), it is another
> case in which a Kenwood manual provides incorrect information about
> the operation of the radio. The Kenwood manual states that "ON"
> represents a "closed" contact (switch "on") for Mark.
>
> "When the FSK transmission key is shorted, you can change between
> space transmission (off) and mark transmission (on)."
>
> - TS-450S/TS-690S Instruction Manual, pg 53.
>
> Almost every modern FSK interface provides an open collector FSK
> output that is *closed* in Mark (pulled to ground) and *open* in
> Space. This is the same as the "simple" transistor on the output
> of a serial port or USB to RS-232 converter for those using EXTFSK
> with MMTTY.
>
> 73,
>
> ... Joe, W4TV
>
>
>
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