[amsat-bb] Re: Satellite Transceiver
kq6ea at pacbell.net
Sun Apr 5 11:17:30 PDT 2009
IIRC, the IF-232 is just a simple TTL-to-RS232 interface. it should be fairly easy to homebrew on with any of the available chips out there, like the Maxxim MAX232.
--- On Sun, 4/5/09, Sebastian <w4as at bellsouth.net> wrote:
> From: Sebastian <w4as at bellsouth.net>
> Subject: [amsat-bb] Re: Satellite Transceiver
> To: "AMSAT BB" <AMSAT-BB at amsat.org>
> Date: Sunday, April 5, 2009, 10:41 AM
> I will agree with you about 90%. The FT-736R has been THE
> radio the
> satellite community has talked about for years, and will
> continue to
> talk about. However, there are some things that need to be
> First, the power supply is a known problem. Certainly not
> a huge
> problem, since if it goes out, you can run it with an
> external power
> The other problem is it's age; lack of replacement
> parts available for
> them; and eventual break down of the values of components
> due to it's
> Additionally, while you can certainly find them used (and
> your price
> of $600 is way too low, I would buy a good one at that
> price - they
> easily go for about $900 now), the other problem is
> interfacing them
> with a computer, which from what I recall, requires an
> IF-232, and I
> think those are quite difficult to find today. I don't
> know if there
> is an easier or cheaper way to interface them since I
> haven't owned
> one for many years, but not being able to use computer
> control on such
> an excellent radio would be a shame.
> Last, their output power is not very high by today's
> standards. Sure
> it's high enough to work the satellites, but it's
> probably not enough
> for meteor scatter, without an amp.
> I'm not knocking the 736, I agree it's an excellent
> rig. It's just a
> shame there is only one true 100% satellite radio currently
> 73 de W4AS
> On Apr 5, 2009, at 10:31 AM, MM wrote:
> > i am running the Yeasu FT-736R.
> > it supports 6/2/440/1200.
> > its the best Sat rig ever made and you can find good
> ones for under
> > $600.
> > wf1f
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> of the author.
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