[amsat-bb] Re: true duplex radios
Since some of the radios suggested are 'old', a column about sub-tones available would be helpful. Also computer interface. - Original Message - From: RFI-EMI-GUY rhyol...@nettally.com To: OZ1MY oz...@privat.dk Cc: amsat-bb@amsat.org Sent: Monday, June 01, 2009 8:57 AM Subject: [amsat-bb] Re: true duplex radios True; This list would be a good start. I suggest a table with mode capabilities and frequency bands, both standard and optional. OZ1MY wrote: Hi, I do not see the Kenwood TS-790 base station ? 73 OZ1MY Ib /listinfo/amsat-bb ___ Sent via amsat...@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
[amsat-bb] Re: true duplex radios
... Yaesu FT-8800 ... Really? Dual-receive, indeed. And will perform crossband repeating. But I can transmit on one band and simultaneously hear myself on another with a FT-8800? ___ Sent via amsat...@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
[amsat-bb] Reminder
The deadline for nominations for the AMSAT BOD must be received at the AMSAT office no later than June 12th. A nomination requires either one AMSAT Member Society or five current AMSAT members. A director serves 2 years. Our address is: AMSAT, 850 Sligo Ave #600, Silver Spring MD 20910. -- 73- Martha ___ Sent via amsat...@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
[amsat-bb] Re: true duplex radios
On Mon, 1 Jun 2009 13:23:44 -0700, Patrick STODDARD (WD9EWK/VA7EWK) amsat...@wd9ewk.net said: If I had to replace my IC-2720H, I would probably get an FT-8800 as the replacement. Price is good, better than the IC-2820H which was Icom's replacement for the IC-2720H, and the separate knobs for each VFO made it a better (for me) choice than the current Kenwood 2m/70cm FM mobiles (TM-D710 or TM-V71A). And, as Drew mentioned, its ability to function as a cross-band repeater ensures it can work with the satellites in cross-band full-duplex mode. I would say get the 2820 and try out some D-STAR/digital stuff too. Plus the 2820 has the GPS in it... with the D-STAR installed... IC-2820 and Kenwood's TNC/control head thing together makes a pretty cool little digital geek mobile station, and with the 2820 also capable of duplex operation... Lots of toys = fun. Of course, to get the full utilization out of the D-STAR portion, you really need to be in the coverage of a Gateway (internet) equipped D-STAR repeater... Stuff to think about... Nate WY0X -- Nate Duehr n...@natetech.com ___ Sent via amsat...@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
[amsat-bb] Re: true duplex radios
But the ability to crossband repeat doesn't automatically mean that a radio can monitor a satellite's downlink while transmitting to it Of course it does. The radio must be able to receive on one band while transmitting on another in order to cross band repeat, which is the same functionality we want for satellite. All cross band repeat capable rigs are by nature full duplex. However, not all full duplex rigs will cross band repeat. 73, Drew KO4MA ___ Sent via amsat...@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
[amsat-bb] Correction
After checking the bylaws, please note that the deadline for nomination is JUNE 15th not June 12th. I sincerely apologize for the error. -- 73- Martha ___ Sent via amsat...@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
[amsat-bb] Re: true duplex radios
That's correct Clint And also being full duplex with ability to hear the sat downlink doesn't mean it has the ability to crossband repeat also Howard VE4ISP Again, incorrect. Think about it for a second. In order for a radio to receive a signal on one band and simultaneously repeat it on another (the meaning of cross band repeat), it has to be capable of full duplex operation. I challenge both of you to find an example that will cross band repeat but isn't full duplex. I think maybe you are confusing cross band repeat with cross band split capable. 73, Drew KO4MA ___ Sent via amsat...@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
[amsat-bb] Call for Papers--2009 ARRL/TAPR Digital Communications Conference
Technical papers are solicited for presentation at the 28th Annual ARRL and TAPR Digital Communications Conference to be held September 25-27, 2009 in Chicago, Illinois. These papers will also be published in the Conference Proceedings (you do NOT need to attend the conference to have your paper included in the Proceedings). The submission deadline is July 31, 2009. Please send papers to: Maty Weinberg ARRL 225 Main St Newington, CT 06111 or you can make your submission via e-mail to: m...@arrl.org Papers will be published exactly as submitted and authors will retain all rights. 73 . . . Steve, WB8IMY ARRL ___ Sent via amsat...@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
[amsat-bb] Re: AMSAT-India VO-52 Award
Hi! My VO-52 Award arrived in today's mail, and it's very, very nice. It's printed on a very heavy stock and is very attractive. I look forward to getting it in a frame and on display asap. Mine was in the PO box this afternoon, also. A very nice certificate! Thanks to AMSAT India for this! 73! Patrick WD9EWK/VA7EWK http://www.wd9ewk.net/ ___ Sent via amsat...@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
[amsat-bb] Re: true duplex radios
Yes but To use the rig as a cross band repeater is a different story. To input on VHF and retransmit on UHF is crossband repeat Using the rig as a repeater. I have an HT that is full duplex but is unable to crossband repeat(rebroadcast on another band) Am I correct in my statements I hope so Howard VE4ISP - Original Message - From: Andrew Glasbrenner glasbren...@mindspring.com To: Howard Kowall hkow...@shaw.ca; clintbra...@earthlink.net; amsat-bb@amsat.org Sent: Monday, June 01, 2009 4:06 PM Subject: Re: [amsat-bb] Re: true duplex radios That's correct Clint And also being full duplex with ability to hear the sat downlink doesn't mean it has the ability to crossband repeat also Howard VE4ISP Again, incorrect. Think about it for a second. In order for a radio to receive a signal on one band and simultaneously repeat it on another (the meaning of cross band repeat), it has to be capable of full duplex operation. I challenge both of you to find an example that will cross band repeat but isn't full duplex. I think maybe you are confusing cross band repeat with cross band split capable. 73, Drew KO4MA ___ Sent via amsat...@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
[amsat-bb] I should have thought of this earlier ....
Hey everyone, I just heard myself on the AO-7 downlink running 500 mW rf out from one of my FT-817s. Just to be sure I also tuned - and sent a quick CQ and ID - to three different spots in the passband (started just above 145.950, the moved up near 145.957, and then back down to just above 145.947). I hadn't planned on working the pass. I had a bit of minor surgery late this afternoon, and not feeling 100% just now. But when I saw the elevation of this pass (almost 84 degrees here), I decided to see whether I could make the trip with a half-watt and the crappy ol' Elk ... hihi. A few weeks ago, I worked K4YYL one morning on a similar-elevation pass running 1 watt out. Just for the heck of it, I decided to take that final low-power step (i.e., 500 mW is as low as any of my all-mode radios will go). By the time I got everything fired up, engaged Doppler tuning in SatPC 32 and loosened up my shoulder/elbow/wrist az/el system, AO-7 was past maximum elevation and on her way down to my northwest. According to the computer, I heard myself when the satellite was between 55 and 60 degrees. It was a weak signal, to be sure - but it was copyable on the Elk inside my house. I suspect those guys with real antennas and preamps could have copied me ok. The next time I get a pass like this one, I'm going to think ahead and post something to the BB because I sure would like to get at least one flea power contact on the Grand Old Girl. She was busy just now - or, at least, it seemed that way to me. Sure was nice to hear. 73 to all, Tim - N3TL ___ Sent via amsat...@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
[amsat-bb] Re: true duplex radios
HTIcom IC-24AT73,Steve WI2W- Original Message -From: Andrew Koenig Date: Monday, June 1, 2009 7:21 pmSubject: [amsat-bb] Re: true duplex radiosCc: amsat-bb@amsat.org Here's my attempt of to update the list of full duplex capable radios. Did I miss anything? HTs - Icom IC-W2A Icom IC-W31A Icom IC-W32 Icom IC-Z1A Icom IC-X2A (440MHz/1.2GHz) Yaesu FT-470 Yaesu FT-530 Yaesu FR-51R Kenwood TH-D7 Kenwood TH-75A Kenwood TH-77 Kenwood TH-78 Alinco DJ-G5T Alinco DJ-580T Alinco DJ-G7 Mobile rigs - Kenwood TM732 Kenwood TM733 Kenwood TM741 Kenwood TM742 Kenwood TM941 Kenwood TM942 Kenwood TM-D700/710 Yaesu FT-4700 Yaesu FT-5100 Yaesu FT-5200 Yaesu FT-8800 Yaesu FT-8900 Icom 2728H Icom IC2800 Icom IC-2340 Icom IC-2720 Icom IC-2820 Icom IC-Delta-100 Heathkit HW-24/HW-24A Base rigs - Yaesu FT-726 (with OSCAR Module) Yaesu FT-736 Yaesu FT-847 Kenwood TS-2000 Icom 820 Icom 821 Icom IC-910H Icom IC-970 -- Andrew Koenig KE5GDB ___ Sent via amsat...@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...@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
[amsat-bb] Re: 2.4 Gig
Hi Nels, W0TUP You don't mention the size of your dish and the overall System Temperature of your receiving system for 2.4 GHz but if it was good for AO40 you should be actually able to receive a small level of Sun-Noise. As an example: Using my 1.2 meters dish with an overall System Temperature of the system of about 72 kelvin I was in condition to day to get about 3.4 dB of Sun-Noise as the included diagram showes. The signal radiated by AO-51 is too strong to evaluate if your 2.4 GHz receiving system is in good shape or not. 73 de i8CVS Domenico - Original Message - From: Arlon Nelson anel...@min.midco.net To: Amsat-BB amsat-bb@amsat.org Sent: Tuesday, April 28, 2009 3:01 PM Subject: [amsat-bb] 2.4 Gig Are there any satellites on 2.4 gig so I can check out my old AO-40 dish. 73, Nels, WØTUP Minot, North Dakota n...@w0tup.com http://www.w0tup.com Ward County - Grid Locator DN98if TRIPLE PLAY AWARD No. 75 - A1 OPERATOR CLUB SKCC 31T - Flying Pigs 590 - QRPp-I #760 ARRL - FISTS #8610 - CC #1310 - FISTS WAS #143 FISTS PLATINUM #365 - FISTS SILVER #367 ARRL SSTV WAS #33 - IVCA MIXED BAND SSTV #1 40 MTR CW WAS - DXCC # 39623 - RTTY WAS # 585 COMMERCIAL RADIO OPERATORS LICENSE *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* CLUB CALL - WØJER (MAGIC CITY QRP CLUB) FISTS #11975 SKCC #1000 *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* Two antennas met on a tower, fell in love and got married. The ceremony wasn't much, but the reception was excellent. *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* ___ Sent via amsat...@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...@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
[amsat-bb] Shuttle Atop Jet
I missed seeing this incredible photo last December when NASA released it. It is a view from ABOVE the Shuttle Endeavor/jet as they fly over the Mojave Desert after STS-126 last December. http://tinyurl.com/nr3zdo Clint Bradford, K6LCS 909-241-7666 ___ Sent via amsat...@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
