[VHFcontesting] The digital modes and the Sept contest

[Mark Spencer]

Sorry I just use a home Brew serial port to ptt, plus isolation transformer(s) for the audio scheme with my FT736.

73

Mark S
VE7AFZ

Aligned Solutions Co.
mark at alignedsolutions.com
604 762 4099

> On Sep 13, 2017, at 11:51 AM, Randy Wing <winger55552001 at yahoo.com> wrote:
> 
> Has anyone used signalink with an FT-736?  I would like to use it but I have had problems getting it to work... I can go offline with you...
> 
> Randy, N0LD
> 
> Sent from Yahoo Mail on Android
> 
> On Wed, Sep 13, 2017 at 1:49 PM, Mark Spencer
> <mark at alignedsolutions.com> wrote:
> Although 1.2 GHz may not be considered a microwave band, I have used JT65c on that band with success during a portable outing.
> 
> It allowed us to quickly complete a QSO that had defied several attempts  over a few hours with CW / SSB.  
> 
> 73
> 
> Mark S
> VE7AFZ
> 
> mark at alignedsolutions.com
> 604 762 4099
> 
> > On Sep 13, 2017, at 7:52 AM, Keith Morehouse <w9rm at calmesapartners.com> wrote:
> > 
> > Zack, I think JT65 or one of the JT9 modes would work very well on any
> > microwave band as long as both ends were frequency stable.  If someone
> > drifts, which is likely, I there would be problems.  Rapid fading or any
> > kind of propagation distortion (multi-path, ect) might have a detrimental
> > effect, depending on which digital mode you used.
> > 
> > Personally, I think JT65 is a proper and useful mode for microwaves.  One
> > of the JT65 sub-modes was designed from the start for terrestrial microwave
> > operation, not EME.
> > 
> > -W9RM
> > 
> > 
> > Keith J Morehouse
> > Managing Partner
> > Calmesa Partners G.P.
> > Olathe, CO
> > 
> >> On Wed, Sep 13, 2017 at 6:51 AM, Zack Widup <w9sz.zack at gmail.com> wrote:
> >> 
> >> My VHF operating is almost entirely portable. I like to go to local
> >> hills (there are some around here!) I use a deep-cycle marine battery
> >> as a power source. Except for very brief operations, running the
> >> station and a computer from the battery runs it down too fast. So I
> >> don't even bother taking a computer along. I log on paper and enter it
> >> into the computer when I get home later.
> >> 
> >> So no digital modes for me on VHF. I wonder how well they work on
> >> microwave frequencies, anyway. I hear stations now and then that don't
> >> have phase-locked LO's and are way off the expected frequencies and
> >> drift several kHz up and down as we work.
> >> 
> >> 73, Zack W9SZ
> >> 
> >>> On Wed, Sep 13, 2017 at 1:49 AM, Jim Worsham <w4kxy at bellsouth.net> wrote:
> >>> Hello Kenny.  How is everything going?  Forget decades.  How about now!
> >> I see this all the time now at work.  The millennials would rather IM or
> >> email you than talk to you.  God help you if you actually show up in their
> >> office for a face-to-face.  You quickly become the creepy old guy.  I am
> >> not sure if that is what is driving your experiences with the use of
> > 
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