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CX2SA > SATDIG 05.04.09 21:23l 507 Lines 15364 Bytes #999 (0) @ WW
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Today's Topics:
1. Re: Satellite Transceiver (Walter Holmes)
2. Re: Satellite Transceiver (Sebastian)
3. Charles NA1SS report Apr 5, 18:00 utc, 2 days left (MM)
4. Re: Satellite Transceiver (Jim Jerzycke)
5. design help (William Leijenaar)
6. Re: Satellite Transceiver (Nigel Gunn G8IFF/W8IFF)
7. Re: Satellite Transceiver (Alan)
----------------------------------------------------------------------
Message: 1
Date: Sun, 5 Apr 2009 10:26:45 -0500
From: "Walter Holmes" <walterh@xxxx.xxx>
Subject: [amsat-bb] Re: Satellite Transceiver
To: "'Jim Leder'" <k8cxm@xxxx.xxx>, "'AMSAT BB'" <AMSAT-BB@xxxxx.xxx>
Message-ID: <000601c9b602$ee664780$cb32d680$@xxx>
Content-Type: text/plain; charset="us-ascii"
I too have a TS-2000x, and was a bit disappointed to find the birdies on
AO-27 and SO-50.
But after some serious consideration, I came up with a very simple way to
resolve the issue for about $100.00, or $200.00 if you also have a 2.4g
downconverter (far cheaper than another radio :) ) that works exceptionally
well. And allows me to use SatPC32 to handle all the conversions
automatically.
This came to me as a result of solving my S-band issue with AO-51.
I bought the S-band downconverter for AO-40, and it was great for that, with
it's UHF uplink, and S-band downlink, that downconverted to VHF.
However, when AO-51 implemented the S-band downlink, it used VHF as the
Uplink. That presented quite a problem with only 1 vhf port on the TS-2000.
So I decided to solve both my problems at the same time, with a couple
downconverters from Hamtronics, by using a VHF to 10 meters, and another for
UHF to 10 meters.
But rather than tying one of my 2 HF ports, I used the Receive only port for
HF on the 2000. That also ensures that there is never a risk of my
accidently transmitting INTO the downconverter. You also have to activate
that port through the menus, #18 as I recall, when you want to use it.
I created a power-point slide to try to depict the setup, but let me know if
you need any further clarification on it.
I'm sure there may be far more clever ways to deal with the issue, but this
works extremely well for me, and hope it will for others as well.
Walter/K5WH ...
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of Jim Leder
Sent: Sunday, April 05, 2009 9:53 AM
To: AMSAT BB
Subject: [amsat-bb] Re: Satellite Transceiver
I bought my TS-2000 back in 2005, mainly for it's HF capabilities. Doing a
little satellite work was just an after thought. I wouldn't trade it for any
other comparable HF or satellite radio out there. If all you need is a
satellite radio, then either the IC-910H (very pricey new) or a clean, used
FT-736R is the ticket.
Yes the TS-2000 does have a few birdies which get in the way of SO-50 and
AO-27, but I can still use those birds with my old Kenwood TM-G707A FM
mobile radio. It has better FM audio anyway. But, along with Satpc32, the
TS-2000 is a wonder on the transponder birds. It's CAT control, trace
function and the fact that it will do 100 watts on 144 and 50 watts on 435
make it a great satellite radio. Maybe not the best, but along with it's HF
capabilities, a very nice overall rig.
Jim Bob Buckeye
AKA
**** Jim Leder****
K8CXM since 1961
IBM retiree since 1999
There are 10 types of people in this world -- those who understand binary
and those who don't.
----- Original Message -----
From: "MM" <ka1rrw@xxxxx.xxx>
To: "AMSAT BB" <AMSAT-BB@xxxxx.xxx>; "Sebastian" <w4as@xxxxxxxxx.xxx>
Sent: Sunday, April 05, 2009 10:31 AM
Subject: [amsat-bb] Re: Satellite Transceiver
>
> 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
>
>
> --- On Fri, 4/3/09, Sebastian <w4as@xxxxxxxxx.xxx> wrote:
>
>> From: Sebastian <w4as@xxxxxxxxx.xxx>
>> Subject: [amsat-bb] Re: Satellite Transceiver
>> To: "AMSAT BB" <AMSAT-BB@xxxxx.xxx>
>> Date: Friday, April 3, 2009, 8:35 PM
>> I have a Kenwood TS-2000, but was disappointed about the
>> birdy on
>> 436.795, which makes both SO-50 and AO-27 unusable.
>>
>> Now if that doesn't bother you, the 2000 is a great
>> radio.
>>
>> However, I wanted to have a dedicated satellite radio, and
>> I decided
>> to go with the Icom IC-910H.
>>
>> I guess it all depends. If you are looking for a radio
>> that will do
>> HF & VHF/UHF and satellites, and aren't too
>> concerned about using
>> those two birds, then go with the 2000. You can't beat
>> it for the
>> money.
>>
>> If you want to have a rig that was designed specifically
>> for satellite
>> work, and if you already have an HF rig, then the 910H is
>> for you.
>>
>> There are other older radios available, but I personally
>> like to stay
>> with rigs that are still in production.
>>
>> 73 de W4AS
>> Sebastian
>>
>> On Apr 3, 2009, at 4:30 PM, Norman W Osborne wrote:
>>
>> > Which one?
>> > I am looking to buy something new and have been
>> looking at the knw
>> > 2000 and
>> > Icom.
>> > Any suggestions?
>> >
>> > best regards,
>> > Norman
>> _______________________________________________
>> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those
>> of the author.
>> Not an AMSAT-NA member? Join now to support the amateur
>> satellite program!
>> Subscription settings:
>> http://amsat.org/mailman/listinfo/amsat-bb
>
>
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
_______________________________________________
Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 2
Date: Sun, 5 Apr 2009 13:41:10 -0400
From: Sebastian <w4as@xxxxxxxxx.xxx>
Subject: [amsat-bb] Re: Satellite Transceiver
To: AMSAT BB <AMSAT-BB@xxxxx.xxx>
Message-ID: <7641A129-D3A8-4C22-B143-83103114EB05@xxxxxxxxx.xxx>
Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes
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 considered.
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
supply.
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
age.
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 being
manufactured.
73 de W4AS
Sebastian
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
------------------------------
Message: 3
Date: Sun, 5 Apr 2009 11:17:02 -0700 (PDT)
From: MM <ka1rrw@xxxxx.xxx>
Subject: [amsat-bb] Charles NA1SS report Apr 5, 18:00 utc, 2 days
left
To: amsat <amsat-bb@xxxxx.xxx>
Message-ID: <609154.12769.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
ISS Amateur Radio Status: April 5, 2009
By Miles Mann WF1F,
Slow Scan TV Status, only 2 days left
MAREX-MG News www.marexmg.org
Manned Amateur Radio Experiment
Hello all:
I just talked to Charles on ISS (April 5, 2009, 17:59 UTC). He said he would
be coming home Wednesday April 8th. This leaves you with 2 more days of voice
and SSTV contacts. The radio station will be turned OFF on Wednesday for the
undocking.
Keep you SSTV systems running in Automatic receive mode and save those
pictures.
Charles has said that he is short on batteries so he is only sending images
manually when he has time.
Current Image list (from October and November 2009)
I moved the Marex list to a new server, hope you enjoy the images.
http://www.marexmg.org/fileshtml/issimages.html
Sincerely
Miles Mann WF1F Marexmg.org
Slow Scan TV Links and Free SSTV software links.
http://www.marexmg.org/fileshtml/sstvlinkpage.html
The standard downlink of 145.800 will be used for voice contacts, school
contacts and SSTV transmissions. Anyone with a FM receiver capable of
monitoring the 145.800 MHz downlink can receive audio and SSTV images. The
standard voice uplink frequencies of 145.200 for ITU Region 1 (Europe, Africa
and Russia) and 144.490 for ITU regions 2 & 3 (N. America, S. America,
Southern Asia, Australia) will be used.
Additional info on SSTV operations is available at:
http://www.marexmg.org/fileshtml/howtouseiss.html
MarexMg Web page
http://www.marexmg.org
73 Miles WF1F MAREX-MG
Until we meet again
DOSVIDANIYA Miles WF1F
------------------------------
Message: 4
Date: Sun, 5 Apr 2009 11:17:30 -0700 (PDT)
From: Jim Jerzycke <kq6ea@xxxxxxx.xxx>
Subject: [amsat-bb] Re: Satellite Transceiver
To: AMSAT BB <AMSAT-BB@xxxxx.xxx>, Sebastian <w4as@xxxxxxxxx.xxx>
Message-ID: <807996.70533.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
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.
jim KQ6EA
--- On Sun, 4/5/09, Sebastian <w4as@xxxxxxxxx.xxx> wrote:
> From: Sebastian <w4as@xxxxxxxxx.xxx>
> Subject: [amsat-bb] Re: Satellite Transceiver
> To: "AMSAT BB" <AMSAT-BB@xxxxx.xxx>
> 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
> considered.
>
> 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
> supply.
>
> 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
> age.
>
> 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
> being
> manufactured.
>
> 73 de W4AS
> Sebastian
>
> 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
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those
> of the author.
> Not an AMSAT-NA member? Join now to support the amateur
> satellite program!
> Subscription settings:
> http://amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 5
Date: Sun, 5 Apr 2009 20:41:22 +0200
From: William Leijenaar <pe1rah@xxxxxxx.xxx>
Subject: [amsat-bb] design help
To: <amsat-bb@xxxxx.xxx>
Message-ID: <BAY116-W12434226E98286D3DE4EE690870@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
Hi Nick,
What is the problem ?
Send me some email, and I will see how I can help...
73
William Leijenaar PE1RAH
pe1rah at hotmail
_________________________________________________________________
What can you do with the new Windows Live? Find out
http://www.microsoft.com/windows/windowslive/default.aspx
------------------------------
Message: 6
Date: Sun, 05 Apr 2009 18:46:22 +0000
From: Nigel Gunn G8IFF/W8IFF <nigel@xxxxx.xxx>
Subject: [amsat-bb] Re: Satellite Transceiver
To: kq6ea@xxxxxxx.xxx
Cc: AMSAT BB <AMSAT-BB@xxxxx.xxx>
Message-ID: <49D8FC7E.5050501@xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Don't most of the commercial interfaces output TTL levels now?
Jim Jerzycke wrote:
> 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.
> jim KQ6EA
------------------------------
Message: 7
Date: Sun, 5 Apr 2009 13:55:01 -0500
From: "Alan" <ve4yz@xxx.xxx>
Subject: [amsat-bb] Re: Satellite Transceiver
To: <kq6ea@xxxxxxx.xxx>, "'AMSAT BB'" <AMSAT-BB@xxxxx.xxx>,
"'Sebastian'" <w4as@xxxxxxxxx.xxx>
Message-ID: <F994D678ECE142C2B4A738F0E086A686@xxxxxx>
Content-Type: text/plain; charset="us-ascii"
TTL/RS232 for FT 736r.
You can fit it inside a DB9
I've used this circuit that uses a couple of 2N2222
http://www.mindspring.com/~n2wwd/html/body_doppler_compensation.html
> -----Original Message-----
> From: amsat-bb-bounces@xxxxx.xxx
> [mailto:amsat-bb-bounces@xxxxx.xxxx On Behalf Of Jim Jerzycke
> Sent: April 5, 2009 1:18 PM
> To: AMSAT BB; Sebastian
> Subject: [amsat-bb] Re: Satellite Transceiver
>
>
> 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.
> jim KQ6EA
>
>
> -
------------------------------
_______________________________________________
Sent via amsat-bb@xxxxx.xxx. Opinions expressed are those of the author.
Not an AMSAT member? Join now to support the amateur satellite program!
http://amsat.org/mailman/listinfo/amsat-bb
End of AMSAT-BB Digest, Vol 4, Issue 158
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