[Date Prev][Date Next][Thread Prev][Thread Next] - [Date Index][Thread Index][Author Index]

Re: FT-817 Question



Thanks Ed, Bruce, Jeff...

I wasn't aware the radio could only take one filter at a time.  That's great
information!

As for the duplex issue, I understand the problem here.  I even like full
dux on  UO-14 so I can tell whether I'm making the bird or being stepped on.
When I don't make any contacts on a pass, like tonight, I feel better when I
have at least heard myself.  ;-)

I have no 2 Mtr SSB uplink capability at my home station now, so I would
probably use the -817 as an uplink transmitter only and receive on my
IC-765.  I may use it as a stand-alone radio in portable H.F. CW and 2 and 6
Mtr terrestrial SSB operation.

73,
Frank
wb2bxo@amsat.org

----- Original Message -----
From: Edward R. Cole <al7eb@ptialaska.net>
To: <amsat-bb@AMSAT.Org>
Sent: Sunday, April 22, 2001 5:41 PM
Subject: Re: [amsat-bb] FT-817 Question


> Bruce, Frank, Jim:
>
> Well, what you say is true about the disadvantage of not having duplex.  I
> was disappointed in two things about the FT-817:  one was no duplex and
the
> other was limiting wbfm to 76-108 MHz.  I understand why on both.  This is
> not intended to be a satellite radio [they make a fine one called the
> FT-847, and I have it].  The other was using wbfm on microwaves at a 30
MHz
> IF [off topic].
>
> My early experience on the Leo's seems that it works fine without duplex
> [this there is little argument].  I think there is software out there in
> development to solve the problem for FO-29, AO-10, and AO-40 linear
> transponder use.  I am hoping so.  I see this little radio becoming a real
> star for satellite if tuning software can be made [sw would compensate for
> doppler]. Its 0.5-5.0w output is perfect for driving VHF-microwave xvtrs.
> Couple its small size with that of a xvtr, 60cm dish, and it is a perfect
> apartment or vacation rig!  DX-pedition in one suitcase!
>
> The question for Frank is whether he wants to take a chance on tuning
> software being developed.  Oh, I chose the cw filter, since it would see
> more utility in a QRP rig.  BTW only one filter may be installed at a
time.
>  I recently used it to talk 80 miles on 6m ground-wave using a 3 element
> yagi.  It sounds really nice on ssb.  Ought to be great mobile rig...I'll
> report back in two weeks on that!
>
> Ed
> This little radio really grows on you.
>
> >From: "Bruce Paige" <kk5do@arrl.net>
> >> "Frank Grossman (WB2BXO)" wrote:
> >>
> >> > I'm considering purchase of an FT-817 for both satellite and H.F.
work.
> >> > I've noticed though, that some basic features, like CW and sideband
> filters
> >> > are options.  (I realize it's not a full duplex radio.)
> >>
> >> Frank,
> >>     As far as I'm concerned, the lack of full duplex makes it TOTALLY
> >> UNACCEPTABLE for the linear satellites.  This was truly stupid on the
> part of
> >> Yaesu.  It's fine for the FM birds, but without full duplex it's just
> barely
> >> above worthless for the SSB birds.
> >>
> >
> >i use my icom w32a ht and i don't use full duplex. i know with the 5
watts
> i am
> >getting into the satellite so i don't care to hear myself. on fo-20/29 or
> ao-10,
> >yes, you have to hear yourself to know if you have the uplink/downlink
> sync'd.
> >but on uo-14 and ao-27, i have never adjusted my uplink, ever. i leave it
> fixed.
> >
> >if you are going to use fo-20/29 or ao-10 then yes, you must have full
> duplex.
> >uo-14, ao27, nope, not necessary.
>
>
> ----
> Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
> To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org

----
Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org



AMSAT Top AMSAT Home