[RTTY] Help for FT-1000-MP Mark V

[Joe Subich, W4TV]

> I recall having to change one of the RTTY default settings to
> reverse.

Any of the Yaesu (or Kenwood) transceivers will need to have the
RTTY Polarity (6-1 for MK V) or equivalent set to REVERSE if the
FSK interface emulates the "single transistor" interface like the
one shown on AA5AU's web site or the MMTTY documentation.

The default FSK setting for Elecraft, Kenwood, Ten-Tec and Yaesu
assume the FSK line is open circuit for MARK and low impedance to
ground for SPACE.  Interfaces that emulate the single transistor
from the TxD line of a UART generate an output opposite that - the
UART output is high (> +5V) for Mark and low (< -5V) for space and
the NPN transistor inverts the sense.

73,

   ... Joe, W4TV


On 2015-03-31 8:43 AM, john at kk9a.com wrote:
> I have a number of these transceivers and I use the MicoHAM DigiKeyerII on
> RTTY. Using the MicroHAM cables it was basically plug and play for FSK. I
> recall having to change one of the RTTY default settings to reverse.
> Perhaps it will be easier waiting until the MicroHAM product arrives?
>
> John KK9A
>
>
> To:	"RTTY Contesting" <rtty at contesting.com>
> Subject:	[RTTY] Help for FT-1000-MP Mark V
> From:	"Gary AL9A" <al9a at mtaonline.net>
> Date:	Mon, 30 Mar 2015 19:44:12 -0800
>
> Looking for some insight into RTTY settings for the Mark V. I am trying to
> help Corliss AL1G upgrade her RTTY setup, but am unfamiliar with her
> radio. She is in Anchorage and I am about 45 road miles away from her QTH
> so we are doing this via email and phone calls.
>
> She currently has a Rig Expert Standard as her interface, but is going to
> upgrade to a microHAM MKII. She has MMTTY stand alone running and we are
> trying to get her new upgraded version of WriteLog to use either the MMTTY
> plug in or the XMMT.ocx. She has been following the tips on AA5AU's web
> site, but she still is having problems getting the radio to key up in
> WriteLog. At this point I am unsure if she is transmitting AFSK or FSK.
>
> I downloaded the manual for the Mark V and scanned through it looking for
> subjects that included RTTY, AFSK and FSK. I've discovered that the Mark V
> has two jacks on the back of the radio related to RTTY. A 5 pin DIN
> labeled PACKET is for AFSK, PSK and other digital modes. A 4 pin DIN is
> for FSK. My problem is understanding how you tell if her radio is set to
> AFSK or FSK? The manual says to push the RTTY button on the radio to
> select either RTTY LSB or RTTY USB. That's it. So is this AFSK or FSK?
> Because of the LSB/USB choices it sounds like the radio is going to
> transmit AFSK with either of these settings through the PACKET jack. I
> can't find anything in the manual that specifically says how to set it to
> do FSK. Is there a menu item buried somewhere that has to be tweaked in
> order to get it to transmit FSK? Any guidance appreciated.
>
> 73,
> Gary AL9A
>
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