I'm not clear on something in the FD rules...
Can PSK and/or RTTY be used for the "demonstration," or "non-traditional
mode" bonus, or only as "data" modes for QSO points?
Thanks!
Frank
wb2bxo@arrl.net
----- Original Message -----
From: Don Melcher <don@hfradio.com>
To: Don Hill AA5AU <aa5au@bellsouth.net>
Cc: <writelog@contesting.com>
Sent: Saturday, June 16, 2001 1:21 PM
Subject: RE: [WriteLog] LSB is really FSK, and Entrgra Serial Hub issues
>
> Thanks Don
>
> Yes - I understand all that about FSK and AFSK, etc.
>
> What is interesting, in the commercial (Marine) HF business (my
business) -
> FSK is Upper Sideband. and in the end, with Baudot or Si(Am)tor, it
doesn't
> matter, as long as the mark/space relationship is correct - i.e.: a RTTY
> station with tones "normal" in LSB can work a station with tones
"reversed"
> in USB - the only thing different is the frequency on the dial - when in
> LSB/USB factors in the BFO frequency, where a radio in FSK should - again,
> at least in the commercial world, reads the carrier or "center" frequency.
>
> In BPSK PSK31, Pactor or PactorII - it doesn't matter what sideband you
are
> on. It apparently does with QPSK, don't know about Clover.
>
> The issue is that Feild Day is a Multi-Mode contest - and it seems to me
> this is how it should work - when you have "LSB is really FSK" checked -
the
> program should put the radio in LSB mode when you select FSK as the mode
for
> the contact, and of course score it as a "data" QSO - and maybe that is
how
> it is working (though it did not initially indicate so) - I haven't had
time
> to further explore it, but it seems that the "wording" of the switch is
> backwards - and perhaps, since the program also does PSK31 - it should be
> "Data is really LSB" (or USB).
>
> The advantage of using FSK or RTTY on some radios is that it lets you
select
> the narrow CW filter in that mode. On the Icom 718, it has an expanded
> filter selection option that lets you select the 500hz filter in
sideband -
> on the 706, 746 and some others - you can fool the radio in telling it
that
> you have a narrow SSB filter installed in the set mode, but really it is
the
> CW filter.... but then you have to change it back in the set mode to use
it
> for CW, unless you want to install 2 CW filters. But RTTY or FSK on Icom
ham
> rigs is for the FSK tones generated in the radio, not the external modem
or
> sound card - something that WON'T work for PSK31, PactorII or Clover, so
you
> have to use SSB - also, be careful with Icom Ham Rigs as the Mic is not
> muted by a PTT signal on the ACC jack if that is where you have your modem
> hooked up - the Mic is still hot so you have to disconnect the mic when
> running data in USB/LSB.
>
> BTW - A quick way to tell the center of the IF passband for your radio
with
> the narrow filter is by usaing the tuning indicator in program like
> Digi-pan - just look at the bandwidth of the white-noise coming through
the
> receiver!
>
> One of the things on my "wish list" for WL is support of the Yaesu FT817 -
a
> really nifty QRP rig for portable operation (I travel a fair amount)- but
it
> would hopefully let you select the "User" data mode which is SSB with the
> ability to select the narrow filter, and use the "Data" jack on the back
as
> the audio in instead of the Mic input.
>
> But you are right about Yaesu - EVERY radio is different - that is why I,
as
> a SCS PTCII dealer, have stopped supporting Yaesu - SCS is feeling the
same
> way.
>
> Hopefully I will have a PTCIIPRO in my hands by Field Day and be able to
use
> it for RTTY/PSK31 - the PTCII is a VERY GOOD RTTY box - hopefully the Pro
> will be even better (hard to imagine).
>
> 73
>
> Don Melcher
> W6ZO
>
> -----Original Message-----
> From: Don Hill AA5AU [mailto:aa5au@bellsouth.net]
> Sent: Friday, June 15, 2001 8:04 PM
> To: Don Melcher
> Subject: Re: [WriteLog] LSB is really FSK, and Entrgra Serial Hub issues
>
>
> Don et al,
>
> LSB is really FSK... is only used when you use AFSK for RTTY.
> In some cases, some radios need to be in the LSB mode to operate
> AFSK when audio is sent from a TNC or sound card to the audio input
> (or mic input) of a transmitter to send RTTY.
>
> LSB is really FSK... needs to be checked when running AFSK and
> your radio is in LSB. If this is not checked, WriteLog thinks you are
> running a SSB contest and will try to send a .wav file. By checking
> LSB is really FSK... then WriteLog knows to send the contents of the
> buffer as set up for RTTY. That is all it's meant to do (I think). If it
> changes the mode of your transceiver, that's something new to me.
>
> If you want to run SSB, do not check LSB is really FSK... By the way,
> LSB is the standard for running AFSK on RTTY. Some may argue
> that AFSK is for VHF only. Well, in today's HF digital world, AFSK
> means to you are sending audio to your radio and the audio shifts mark
> and space. FSK is when you send on/off keying to your radio and your
> radio does the frequency shift keying unless, of course, you are using
> a Yaesu radio, then everything goes out the window.
>
> Hope this helps.
>
> 73, Don AA5AU
>
> ----- Original Message -----
> From: "Don Melcher" <don@hfradio.com>
> To: <writelog@contesting.com>
> Sent: Friday, June 15, 2001 3:46 PM
> Subject: [WriteLog] LSB is really FSK, and Entrgra Serial Hub issues
>
>
> >
> > I am a new WL user, but...?
> >
> > Shouldn't it be FSK is really LSB? Seems bass-ackwards to me - I was
> > checking out WL for FD and when I checked the option it put my IC 718 in
> > RTTY when I selected LSB - shouldn't this be a switch for AFSK to put
the
> > radio in LSB (or, USB, if prefered) when you tell the program to go to
> FSK?
> > Am I missing something? Why would you want the radio to go to RTTY when
> you
> > select LSB???
> >
> > But when I went back just to confirm what I was seeing, and it works
like
> I
> > expected - AFTER I changed bands. Boy am I confused!!!
> >
> > Also - using the Entrgra 4Serial/2USB adapter, and the selected port
stops
> > responding after a while and I get a server busy window, with the whole
> > program locked-up. Previous posts re:Entrgra indicate no problems. Tried
> > with and without the port being configured for DOS support, and changed
> the
> > port from Radio to TNC to Rotor - same problems.
> >
> > BTW - the band-map window is REALLY cool!!!!
> >
> >
> > Don
> > W6ZO
> >
> >
> >
> >
> > --
> > WWW: http://www.writelog.com/
> > Submissions: writelog@contesting.com
> > Administrative requests: writelog-REQUEST@contesting.com
> > Problems: owner-writelog@contesting.com
> >
>
>
>
>
> --
> WWW: http://www.writelog.com/
> Submissions: writelog@contesting.com
> Administrative requests: writelog-REQUEST@contesting.com
> Problems: owner-writelog@contesting.com
>
--
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