Getting back into Satellites
Good Day all,
After a few years hiatis, I am contemplating getting back on the birds. Because I currently live in an apartment, I plan on starting the easy route using an arrow antenna. My question is, since I sold my last HT about a decade ago, what is recommended for the current models of HTs that have full-duplex capabilities?
73es,
There is only one currently operable FM satellite, and many of the sats due to be launched this year are transponders or FM/DSB repeaters.
My suggestion would be to find a Yaesu 817 to get a toe into transponders, and add -any- UHF receiver for full duplex FM. The little Baofeng UV3s are like $45 and have good receivers in them.
73, Drew KO4MA
Sent from my iPhone
On Feb 7, 2013, at 10:26 AM, Jeffrey Embry jeffrey.embry@gmail.com wrote:
Good Day all,
After a few years hiatis, I am contemplating getting back on the birds. Because I currently live in an apartment, I plan on starting the easy route using an arrow antenna. My question is, since I sold my last HT about a decade ago, what is recommended for the current models of HTs that have full-duplex capabilities?
73es,
-- Jeff Embry, K3OQ FM19nb ARCI #11643, FPQRP #-696, QRP-L # 67, NAQCC #25, ARS #1733 AMSAT LM-2263
-- Success is the ability to go from one failure to another with no loss of enthusiasm. - Sir Winston Churchill _______________________________________________ Sent via AMSAT-BB@amsat.org. 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
73/all
Is Full Duplex really required or just nice to have? Currently my setup (which doesn't include an antenna at the moment due to storms) is a Yaesu FT-790(uhf) and FT-290(vhf). Both do FM and SSB at about 25 watts. I've used to use my 290 for the old RS-12/13 and RS-15 birds along with my FT-890 (RIP) for the 10 meter downlink so I do have "full duplex" but is it a necessary feature? I know it's nice to be able to hear yourself to know that you are even getting into the machine.
73/
Kevin Muenzler, WB5RUE Grid EL09uf Eagle Creek Observatory http://www.eaglecreekobservatory.org I have not yet begun to procrastinate!
-----Original Message----- From: amsat-bb-bounces@amsat.org [mailto:amsat-bb-bounces@amsat.org] On Behalf Of Andrew Glasbrenner Sent: Thursday, February 07, 2013 11:04 AM To: jeffrey.embry@gmail.com Cc: amsat-bb@amsat.org Subject: [amsat-bb] Re: Getting back into Satellites
There is only one currently operable FM satellite, and many of the sats due to be launched this year are transponders or FM/DSB repeaters.
My suggestion would be to find a Yaesu 817 to get a toe into transponders, and add -any- UHF receiver for full duplex FM. The little Baofeng UV3s are like $45 and have good receivers in them.
73, Drew KO4MA
Sent from my iPhone
On Feb 7, 2013, at 10:26 AM, Jeffrey Embry jeffrey.embry@gmail.com wrote:
Good Day all,
After a few years hiatis, I am contemplating getting back on the birds. Because I currently live in an apartment, I plan on starting the easy route using an arrow antenna. My question is, since I sold my last HT about a decade ago, what is recommended for the current models of HTs that have full-duplex capabilities?
73es,
-- Jeff Embry, K3OQ FM19nb ARCI #11643, FPQRP #-696, QRP-L # 67, NAQCC #25, ARS #1733 AMSAT LM-2263
-- Success is the ability to go from one failure to another with no loss of enthusiasm. - Sir Winston Churchill _______________________________________________ Sent via AMSAT-BB@amsat.org. 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@amsat.org. 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
It's not mandatory, but it's good practice, especially on FM where things get crowded and only one gets through. On transponders it is good to gauge your signal strength (especially on fragile sats like AO7), and to be able to match uplink and downlink for Doppler. However, with caveats and a sense of the pitfalls, experienced ops can make use of half duplex. A single 817 and an Arrow can make some neat QSOs on FO29!
73, Drew KO4MA (AMSAT-NA VP Operations)
Sent from my iPhone
On Feb 7, 2013, at 3:33 PM, "Kevin Muenzler, WB5RUE" kevin@eaglecreekobservatory.org wrote:
73/all
Is Full Duplex really required or just nice to have? Currently my setup (which doesn't include an antenna at the moment due to storms) is a Yaesu FT-790(uhf) and FT-290(vhf). Both do FM and SSB at about 25 watts. I've used to use my 290 for the old RS-12/13 and RS-15 birds along with my FT-890 (RIP) for the 10 meter downlink so I do have "full duplex" but is it a necessary feature? I know it's nice to be able to hear yourself to know that you are even getting into the machine.
73/
Kevin Muenzler, WB5RUE Grid EL09uf Eagle Creek Observatory http://www.eaglecreekobservatory.org I have not yet begun to procrastinate!
-----Original Message----- From: amsat-bb-bounces@amsat.org [mailto:amsat-bb-bounces@amsat.org] On Behalf Of Andrew Glasbrenner Sent: Thursday, February 07, 2013 11:04 AM To: jeffrey.embry@gmail.com Cc: amsat-bb@amsat.org Subject: [amsat-bb] Re: Getting back into Satellites
There is only one currently operable FM satellite, and many of the sats due to be launched this year are transponders or FM/DSB repeaters.
My suggestion would be to find a Yaesu 817 to get a toe into transponders, and add -any- UHF receiver for full duplex FM. The little Baofeng UV3s are like $45 and have good receivers in them.
73, Drew KO4MA
Sent from my iPhone
On Feb 7, 2013, at 10:26 AM, Jeffrey Embry jeffrey.embry@gmail.com wrote:
Good Day all,
After a few years hiatis, I am contemplating getting back on the birds. Because I currently live in an apartment, I plan on starting the easy route using an arrow antenna. My question is, since I sold my last HT about a decade ago, what is recommended for the current models of HTs that have full-duplex capabilities?
73es,
-- Jeff Embry, K3OQ FM19nb ARCI #11643, FPQRP #-696, QRP-L # 67, NAQCC #25, ARS #1733 AMSAT LM-2263
-- Success is the ability to go from one failure to another with no loss of enthusiasm. - Sir Winston Churchill _______________________________________________ Sent via AMSAT-BB@amsat.org. 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@amsat.org. 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@amsat.org. 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
Hi Kevin,
With SSB, pretty much required, in order to get your Tx and Rx aligned with each other and with the others you are talking to. It can be done by computer with half duplex, but the operator on the other end will probably need to work harder.
With FM it's highly recommended, not so much for frequency control, but because it's so easy to step on someone else. Full duplex lets you know you're not the one controlling the channel, so you can back off and let the QSO occur.
Hope to work you some day,
Greg KO6TH
Kevin Muenzler, WB5RUE wrote:
73/all
Is Full Duplex really required or just nice to have? Currently my setup (which doesn't include an antenna at the moment due to storms) is a Yaesu FT-790(uhf) and FT-290(vhf). Both do FM and SSB at about 25 watts. I've used to use my 290 for the old RS-12/13 and RS-15 birds along with my FT-890 (RIP) for the 10 meter downlink so I do have "full duplex" but is it a necessary feature? I know it's nice to be able to hear yourself to know that you are even getting into the machine.
73/
Kevin Muenzler, WB5RUE Grid EL09uf Eagle Creek Observatory http://www.eaglecreekobservatory.org I have not yet begun to procrastinate!
-----Original Message----- From: amsat-bb-bounces@amsat.org [mailto:amsat-bb-bounces@amsat.org] On Behalf Of Andrew Glasbrenner Sent: Thursday, February 07, 2013 11:04 AM To: jeffrey.embry@gmail.com Cc: amsat-bb@amsat.org Subject: [amsat-bb] Re: Getting back into Satellites
There is only one currently operable FM satellite, and many of the sats due to be launched this year are transponders or FM/DSB repeaters.
My suggestion would be to find a Yaesu 817 to get a toe into transponders, and add -any- UHF receiver for full duplex FM. The little Baofeng UV3s are like $45 and have good receivers in them.
73, Drew KO4MA
Sent from my iPhone
On Feb 7, 2013, at 10:26 AM, Jeffrey Embryjeffrey.embry@gmail.com wrote:
Good Day all,
After a few years hiatis, I am contemplating getting back on the birds. Because I currently live in an apartment, I plan on starting the easy route using an arrow antenna. My question is, since I sold my last HT about a decade ago, what is recommended for the current models of HTs that have full-duplex capabilities?
73es,
-- Jeff Embry, K3OQ FM19nb ARCI #11643, FPQRP #-696, QRP-L # 67, NAQCC #25, ARS #1733 AMSAT LM-2263
-- Success is the ability to go from one failure to another with no loss of enthusiasm. - Sir Winston Churchill _______________________________________________ Sent via AMSAT-BB@amsat.org. 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@amsat.org. 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@amsat.org. 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
Hi Kevin, WB5RUE.
My experience beginning from OSCAR-6 suggests that Full Duplex is really required and not only an option because the first requirement to succesfully access a satellite transponder is to hear your signal coming back to your receiver.
If you are able to hear back your signal than any other satellite station with a similar set-up is potentially able to hear him self and contact you.
Your set-up using a separate TX and a separate RX seems to be just it is necessary for a good satellite operation.
73" de
i8CVS Domenico
----- Original Message ----- From: "Kevin Muenzler, WB5RUE" kevin@eaglecreekobservatory.org To: amsat-bb@amsat.org Sent: Thursday, February 07, 2013 9:33 PM Subject: [amsat-bb] Re: Getting back into Satellites
73/all
Is Full Duplex really required or just nice to have? Currently my setup (which doesn't include an antenna at the moment due to storms) is a Yaesu FT-790(uhf) and FT-290(vhf). Both do FM and SSB at about 25 watts. I've used to use my 290 for the old RS-12/13 and RS-15 birds along with my
FT-890
(RIP) for the 10 meter downlink so I do have "full duplex" but is it a necessary feature? I know it's nice to be able to hear yourself to know that you are even getting into the machine.
73/
Kevin Muenzler, WB5RUE Grid EL09uf Eagle Creek Observatory http://www.eaglecreekobservatory.org I have not yet begun to procrastinate!
-----Original Message----- From: amsat-bb-bounces@amsat.org [mailto:amsat-bb-bounces@amsat.org] On Behalf Of Andrew Glasbrenner Sent: Thursday, February 07, 2013 11:04 AM To: jeffrey.embry@gmail.com Cc: amsat-bb@amsat.org Subject: [amsat-bb] Re: Getting back into Satellites
There is only one currently operable FM satellite, and many of the sats
due
to be launched this year are transponders or FM/DSB repeaters.
My suggestion would be to find a Yaesu 817 to get a toe into transponders, and add -any- UHF receiver for full duplex FM. The little Baofeng UV3s are like $45 and have good receivers in them.
73, Drew KO4MA
Sent from my iPhone
On Feb 7, 2013, at 10:26 AM, Jeffrey Embry jeffrey.embry@gmail.com
wrote:
Good Day all,
After a few years hiatis, I am contemplating getting back on the birds. Because I currently live in an apartment, I plan on starting the easy route using an arrow antenna. My question is, since I sold my last HT about a decade ago, what is recommended for the current models of HTs that have full-duplex capabilities?
73es,
-- Jeff Embry, K3OQ FM19nb ARCI #11643, FPQRP #-696, QRP-L # 67, NAQCC #25, ARS #1733 AMSAT LM-2263
-- Success is the ability to go from one failure to another with no loss of enthusiasm. - Sir Winston Churchill _______________________________________________ Sent via AMSAT-BB@amsat.org. 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@amsat.org. 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@amsat.org. 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
Jeff
On the receive end of things, check out one of the SDR dongles like the Funcube dongle, they are inexpensive and have the added benefit of providing a panadapter which allows you to view the entire bandpass of a transponder satellite. A receive preamp will probably be required.
A laptop computer will comfortably support the Dongle and SATPC32 or other SAT software.
Dave W0DHB
-----Original Message----- From: amsat-bb-bounces@amsat.org [mailto:amsat-bb-bounces@amsat.org] On Behalf Of Jeffrey Embry Sent: Thursday, February 07, 2013 8:27 AM To: amsat-bb@amsat.org Subject: [amsat-bb] Getting back into Satellites
Good Day all,
After a few years hiatis, I am contemplating getting back on the birds. Because I currently live in an apartment, I plan on starting the easy route using an arrow antenna. My question is, since I sold my last HT about a decade ago, what is recommended for the current models of HTs that have full-duplex capabilities?
73es,
-- Jeff Embry, K3OQ FM19nb ARCI #11643, FPQRP #-696, QRP-L # 67, NAQCC #25, ARS #1733 AMSAT LM-2263
-- Success is the ability to go from one failure to another with no loss of enthusiasm. - Sir Winston Churchill _______________________________________________ Sent via AMSAT-BB@amsat.org. 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
participants (6)
-
Andrew Glasbrenner -
Dave WØDHB -
Greg D -
i8cvs -
Jeffrey Embry -
Kevin Muenzler, WB5RUE