[amsat-bb] Re: Protocol
On Tue, 2011-01-11 at 12:17 -0900, Edward R. Cole wrote: A satellite with 25 channels would probably help. LOL This is why a lot of the old guard satellite ops wish for the translator days with 100-KHz of bandwidth and CW/SSB. But I do NOT want to start up a RANT on this -everyone knows this. Single channel FM repeater satellites will always be saddled with this problem - too many users/one channel. Goes with the territory. that is reality. Another reality: lots of unused satellites while everyone is on a single satellite - why? Because AO-51 is the most reliable satellite in terms of actually finding and working it. SO-50 seems to be almost impossible to lift, and the linear transponder ones require extremely expensive radios. You can work AO-51 with an el-cheapo dual-band handie and a homebrew antenna, and you can work /P really easily because you don't need a rotator or satellite tracking software. I'm not going to rush out and buy a VHF/UHF SSB rig just to work the odd pass, especially since I've never heard anyone on the linear birds. I don't know if VO-52 works - I've never even heard its beacon - and AO-27 is only ever enabled over the US, making it useless for most of the world. It would be great to attempt a QSO through AO-7 but again I'm not going to go and buy a rig that costs as much as a car to do it. Gordon MM0YEQ ___ 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] ISS path
What is the ISS path ? I just tried SGATE SGATE,WIDE RS0ISS-4 - Andrew VK4TEC - ___ 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: ISS path
ARISS is the best since it will work in all modes but RS0ISS-4 will work if the radio on the ISS is in PKT mode. Kenneth - N5VHO -Original Message- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of Andrew Rich Sent: Wednesday, January 12, 2011 5:51 AM To: amsat-bb@amsat.org Subject: [amsat-bb] ISS path What is the ISS path ? I just tried SGATE SGATE,WIDE RS0ISS-4 - Andrew VK4TEC - ___ 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] AO-51 SSB uplink
What if we tried using SSB on the uplink and FM on the downlink as an experiment sometime. If the uplink passband was left a little wide, several stations could still be intelligible at once, assuming they weren't on the exact same frequency, not to mention a cw signal or two off to the edges. The DSP between the ears can work pretty good at separating signals sometimes. Not a good mode for handheld operation but may be worth a try just to see how well it works.. Howie AB2S ___ 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: AO-51 SSB uplink
On 1/12/2011 9:22 AM, Howie DeFelice wrote: What if we tried using SSB on the uplink and FM on the downlink as an experiment sometime. If the uplink passband was left a little wide, several stations could still be intelligible at once, assuming they weren't on the exact same frequency, not to mention a cw signal or two off to the edges. The DSP between the ears can work pretty good at separating signals sometimes. Not a good mode for handheld operation but may be worth a try just to see how well it works.. Howie AB2S ___ 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 We run that exact mode sporadically, including just two weeks ago for Straight Key Night. It works well for experienced portable ops, and SSB capable base stations, but cuts out all the HT and Arrow guys. I think those HT/arrow guys are the prime users and target audience for AO-51, and the other groups can play on the often empty transponder satellites anytime they wish. 73, Drew KO4MA AMSAT VP Operations ___ 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: IR3UEF D-Star repeater 145.800 (!)
- Original Message - From: Alain De Carolis al...@alain.it To: amsat-bb@amsat.org Cc: eu-am...@yahoogroups.com Sent: Tuesday, January 11, 2011 6:34 PM Subject: [amsat-bb] Re: IR3UEF D-Star repeater 145.800 (!) Good news: the repeater on 145.800 has been deactivated http://www.issfanclub.com/node/30266 I would like to publicly praise ARI for this wise decision 73's Alain IZ6BYY/WW3WW Hi Alain, IZ6BYY/WW3WW And now that ARI was able to deactivate the 145.800 MHz repeater and you publicly praise ARI please make a request to ARI and be happy to became again an ARI member.HI ! I hope that ARI should be able to deactivate the D-Star repeater on 145.850 as well ! 73 de i8CVS Domenico ___ 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-BB Digest, Vol 6, Issue 19
Llll/ootrttpoo - Ursprüngliche Nachricht - Von: John Elliott jael...@gmail.com Gesendet: Mittwoch, 12. Januar 2011 07:52 An: amsat-bb@amsat.org Betreff: [amsat-bb] Reooo: AMSAT-BB Digest, Vol 6, Issue 1o9 ip If anyone is using HRD with y-R controller to a Yaesu 5500 rotator. Can they contact me direct at jael...@gmail.com and assist me to get minett working ??. Regards John Elliott VK3CVF ___ 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] Yaesu FT 8800
Does anyone on the reflector have any experience with? the Yaesu FT8800 for satellite operation?? Any information will be appreciated. Thanks ,?Buff WB2SIH FN31DD ___ 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: AO-51 SSB uplink
On 1/12/2011 9:53 AM, Peter Portanova wrote: Drew, It could also cut out the HT/ELK people, I'm kidding but since Ray with ELK gave me an ELK antenna for my HRU Forum, why not give him some ink. I also did some comparison tests with the Arrow at I'm able to receive the satellite at AOS and LOS better with the ELK so far, more scientific tests to follow. You are correct Pete, Ray at Elk has really been a good friend to us. The Arrow has just been such an iconic part of the last ten years or so of satellite operation, it's sort of become like Xerox or Kleenex in the vernacular. 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] Re: Yaesu FT 8800
Hi! Does anyone on the reflector have any experience with? the Yaesu FT8800 for satellite operation?? Any information will be appreciated. It is a good radio for FM satellite work. You get separate knobs for volume and tuning on each VFO, so you don't have to switch between the VFOs when it is time to adjust your receiver. My 8800 is one of 3 radios I have that are capable of cross-band full-duplex operation (the others are an IC-2820H dual-band mobile, and the new TH-D72A HT). The 8800's receiver is not as sensitive as the receivers in the other two radios, but it is adequate for satellite work. One huge advantage for the FT-8800 over the IC-2820H is price. I think the 2820 is almost $200 more than the 8800, and you don't get anything extra with the 2820 like D-Star (it is *capable* of D-Star operation, but you must buy the optional board for that - almost $200 more). The knobs on the 8800's control head will not resist much banging around, so be careful if you plan to pack the 8800 in a box or bag and travel with it (or if you mount it somewhere). They can break off easily, something I have seen with mine. :-( 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: Protocol
- Original Message - From: Gordon JC Pearce gordon...@gjcp.net To: amsat-bb@amsat.org Sent: Wednesday, January 12, 2011 8:58 AM Subject: [amsat-bb] Re: Protocol It would be great to attempt a QSO through AO-7 but again I'm not going to go and buy a rig that costs as much as a car to do it. Gordon MM0YEQ Hi Gordon , MM0YEQ To work AO-7 mode-B as I actually do you need only any old CW/SSB 70 cm TX and any old 2 meters CW/SSB RX wich cost is not as much as a new car wheel. 73 de i8CVS Domenico ___ 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] SSB via satellite (was Re: Protocol)
Hi Gordon! Because AO-51 is the most reliable satellite in terms of actually finding and working it. SO-50 seems to be almost impossible to lift, and the linear transponder ones require extremely expensive radios. You can work AO-51 with an el-cheapo dual-band handie and a homebrew antenna, and you can work /P really easily because you don't need a rotator or satellite tracking software. SO-50 isn't impossible, but your receiver and antenna system need to be able to deal with weaker signals than you hear from other FM birds. SO-50 is transmitting at 250mW, and it gets regular workouts on passes over here. AO-51 is now running with more power on the downlink than usual, which will make the difference between it and SO-50's downlink more noticeable. PL tones are also mandatory on SO-50, to turn it on (transmit briefly with 74.4 Hz) and to talk through the satellite (67.0 Hz). I'm not going to rush out and buy a VHF/UHF SSB rig just to work the odd pass, especially since I've never heard anyone on the linear birds. I don't know if VO-52 works - I've never even heard its beacon - and AO-27 is only ever enabled over the US, making it useless for most of the world. It would be great to attempt a QSO through AO-7 but again I'm not going to go and buy a rig that costs as much as a car to do it. I would not characterize a Yaesu FT-817ND and Kenwood TH-F6A (outside North America, TH-F7) as extremely expensive radios. Sure, these two radios are more expensive than a single 2m/70cm FM HT, even more expensive than the new TH-D72A HT, but not like the prices were on all- mode 2m and 70cm gear were in years past. I regularly work the linear birds with either two FT-817NDs or one 817 and a TH-F6A receiving the downlink. With an FT-817ND, you also get a radio capable of QRP HF and 6m operation. The 817s have been in production for a decade, so you could also look at picking up a used 817 (or two) to try SSB on the birds. The 817s have a CAT control port on them, so they can be controlled with software like SatPC32. Two 817s can be controlled by SatPC32, if you are looking for an all-mode full-duplex satellite ground station with those radios. Besides an 817, you could also look at radios like the IC-706Mk2 or Mk2G, IC-7000, FT-857, FT-897, etc. You'd need a larger battery to run them than you would an 817, but all of these are capable of being used for SSB satellite work. VO-52's beacon is just a carrier on 145.936 MHz. It is on all the time, and the VO-52 downlink is easy to copy. It is a great satellite for someone interested in starting out on SSB via satellite. AO-27 is available on daylight passes over the Northern Hemisphere, not just over North America. If the web site is accurate, you can get an updated schedule for AO-27 for the upcoming 24 hours at: http://www.ao27.org/ You can also download a program that shows when AO-27 will be on for any particular date from: http://sites.google.com/site/ao27satellitescheduler/ The SSB birds are not as busy as the FM birds, but you can find activity on them. Many will work SSB with computer-controlled radios or antennas/rotator, but I - and others - do this without the benefit of computer control. It may be old school, but with practice it is possible. If you are looking to work these birds from a portable station, that is entirely possible. I do that all the time - at hamfests, parks, from the back of my truck, with my gear laid out on the roof or trunk of a rental car, wherever I happen to be. All of my satellite station, excluding antennas and items deemed unsafe in a carry-on bag for air travel, fit in an old laptop bag. The antenna and other stuff go in a duffel bag that gets checked for air travel. You don't get the numbers of QSOs on an SSB bird that you might on AO-51, but I have fun with it. 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: Protocol
On 1/12/2011 2:58 AM, Gordon JC Pearce wrote: and AO-27 is only ever enabled over the US, making it useless for most of the world. This is incorrect. AO-27 is on for the same times on each orbit, meaning it covers all the mid latitude northern hemisphere. If you look at oscar.dcarr.org you'll see plenty of reports for AO-27 over EU. 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] ELK Antenna
Ron, My Pleasure, this is their site, http://www.elkantennas.com/ feel free to talk with Ray the owner and you can mention my name and that you read my posting as a result of Ham Radio University, if you have an interest. I always used an Arrow antenna, by default, until Tim, N3TL was invited to do a Satellite Forum, he asked Arrow if they would give some support, they said NO! He never used an ELK but asked them for a donation and they gave him an Antenna to raffle. He then purchased an ELK and began to do many side by side tests and the ELK was very impressive at AOS/LOS and it seemed to respond very well to the polarization changes as we twisted it. The Arrow does not publish any gain numbers on the antenna, some have come up with their own values but not official, ELK publishes the normal numbers you would expect, good luck and most of all Enjoy the Satellites, NOW, nothing is forever! 73- Pete WB2OQQ www.massapequanyweather.com http://www.qrz.com/db/WB2OQQ? ___ 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: AO-51 SSB uplink
Drew, That's funny, I was thinking that too, we just associate Arrow with portable Satellite operations. I was just so impressed that Ray would just give me an antenna, and I didn't even own one, that was special. As a result of the publicity of giving away an ELK antenna in my Satellite forum, the room was packed and people outside looking thru the glass, but they had a raffle ticket! Drew, at that point I knew that we don't get many opportunities to talk about the work AMSAT does and the need for membership and donations with bigger groups, I spent five valuable satellite minutes connecting my talk to AMSAT and if I added value then you need to transfer that feeling to your AMSAT involvement. I hope my message got thru to just a few. 73- Pete WB2OQQ www.massapequanyweather.com http://www.qrz.com/db/WB2OQQ? ___ 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] Fw: WB2OQQ
Hello, I don't use LOTW for Satellite logging, however I logged quite a few contacts, thank you, during HRU, Sunday. I would like to upload the file to LoTW however I would like to know the exact header for the adi files so the SAT contacts will be properly added to LoTW and eQSL, thank you. 73- Pete WB2OQQ www.massapequanyweather.com http://www.qrz.com/db/WB2OQQ? ___ 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: ELK Antenna
Ron - AMSAT has an Elk antenna and bag in stock. The antenna is $125 and the bag is $25. Shipping is extra. On Wed, Jan 12, 2011 at 11:39 AM, Peter Portanova r...@optonline.netwrote: Ron, My Pleasure, this is their site, http://www.elkantennas.com/ feel free to talk with Ray the owner and you can mention my name and that you read my posting as a result of Ham Radio University, if you have an interest. I always used an Arrow antenna, by default, until Tim, N3TL was invited to do a Satellite Forum, he asked Arrow if they would give some support, they said NO! He never used an ELK but asked them for a donation and they gave him an Antenna to raffle. He then purchased an ELK and began to do many side by side tests and the ELK was very impressive at AOS/LOS and it seemed to respond very well to the polarization changes as we twisted it. The Arrow does not publish any gain numbers on the antenna, some have come up with their own values but not official, ELK publishes the normal numbers you would expect, good luck and most of all Enjoy the Satellites, NOW, nothing is forever! 73- Pete WB2OQQ www.massapequanyweather.com http://www.qrz.com/db/WB2OQQ? ___ 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 -- 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: LOTW format
Pete, as I understand it, there are two important lines in the .adi file which must be included for LOTW to recognize it as a sat contact... examples are shown below: Propagation Mode: PROP_MODE:3SAT Satellite Name: SAT_NAME:4AO-7 I've found that some logging software does _not_ have these two items available as fill in boxes, although I believe you can edit the .adi file manually to add these lines. See the link below for all the details. I hope I read your question correctly and this will be helpful to you. http://www.arrl.org/files/file/LoTW%2520Instructions/N5JB.pdf Bill N5AB On Jan 12, 2011, at 10:54 AM, Peter Portanova wrote: Hello, I don't use LOTW for Satellite logging, however I logged quite a few contacts, thank you, during HRU, Sunday. I would like to upload the file to LoTW however I would like to know the exact header for the adi files so the SAT contacts will be properly added to LoTW and eQSL, thank you. 73- Pete WB2OQQ www.massapequanyweather.com http://www.qrz.com/db/WB2OQQ? ___ 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] Atlanta
Hey, I am going to visit Atlanta and stay there for about a week. Hope to see some AMSAT folks there. Michael Chen, BD5RV/4 AMSAT-China: http://www.camsat.cn --- Twitter: http://twitter.com/bd5rv Email: michael.bd...@gmail.com MSN: bd...@jsdxc.org Skype: michael-bd5rv ___ 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: ELK Antenna
Martha, Thank you for seeing my mail, on the ELK antenna, that's a good deal! 73- Pete WB2OQQ ___ 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: Yaesu FT-8800
Great for sat work - like Patrick mentioned. For portability, I have installed mine in an ice chest ... photos at ... ttp://tinyurl.com/cooler-radios Clint Bradford, K6LCS ___ 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] Elk vs Arrow
... The Arrow does not publish any gain numbers ... ... ELK publishes the normal numbers you would expect ... Now, after reading previous posts the past day on this, the FIRST thing that comes t mind is whether or not the writer got his antenna as a freebie as he demeans other antenna alternatives ... AND I WISH NONE OF US HAD TO THINK LIKE THIS. Because a writer here wrote a mini-review of the Elk, and stated it was very impressive as compared to the Arrow. I have to tip my cap to him for his honesty - he apparently (and hopefully!) won't let availability of freebies sway his opinion of actual performance. But another AMSAT member is impressed with receiving free equipment - which is being shown to cloud the truth as to performance between competing equipment. Some think Arrow's owner is arrogant in that he didn't commission a formal test on the gain of his antennas. On the other hand, those of us that have used them know that they work. I had an engineer client purchase one from me back when I worked for HRO about five years ago. He was standing outside, waiting for me to open shop the next morning, carrying his Arrow to return. This cannot possibly work, he adamantly exclaimed. It is engineered all wrong. I want a refund. Because i had recommended the product due to me own personal experience with them, part of me wanted to professionally challenge him and learn more about his overnight experience with the Arrow. But seeing how determined he was about it being engineered all wrong, I changed my thinking to, Hey, I can purchase it myself at a open item discount. And I did. And it is the VERY SAME antenna I use to this day for demos and presentation. BUT - back to the last few messages. What should we all learn? Unfortunately, we now have to think behind the scenes when we read felow AMSAT members' product reviews. We're seeing the fact that some vendors give away products has been able to sway and taint honest reporting. 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
[amsat-bb] Re: Yaesu FT-8800
Hi Everyone! I don’t mean to be the odd guy on the block, but I do not like the 8800 for satellite work. I enjoy the full duplex function, and it is very easy to maneuver through the frequencies/bands using the mic, but I do not like the receive sensitivity. Every time I have tried to use it for satellite work I feel like I fight it the entire time trying to get a strong signal. I can’t exactly make a very accurate judgment on it either since I have only used it a few times. If others say it works well, I would have to go with the general consensus since I don't use it much. The 2 THG71As, and now the THD7A and 1 THG71A (yeah, I know the D7 is full duplex, but that is another story) are my regular satellite equipment. 73! Zack KD8KSN -Original Message- From: Clint Bradford Sent: Wednesday, January 12, 2011 2:19 PM To: amsat-bb@amsat.org Subject: [amsat-bb] Re: Yaesu FT-8800 Great for sat work - like Patrick mentioned. For portability, I have installed mine in an ice chest ... photos at ... ttp://tinyurl.com/cooler-radios Clint Bradford, K6LCS ___ 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: Yaesu FT-8800
... I do not like the receive sensitivity ... Hmmm ... I just didn't experience that. Does your '8800 work fine for local/repeater work? Clint, K6LCS ___ 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: Yaesu FT-8800
The 8800 is sweet for everything else that I use it for - repeaters, x-band repeat (handy function!), simplex, you name it, but I never seemed to have good success using it for satellite work. Maybe I need to pull it out again and give it another try. Like I said, I can’t make an accurate judgment on it since I have only used it a few times. I do know that in my experience the receive sensitivity of radios (of the same make/model) differ from radio to radio. I have 2 THG71As sitting on my desk that are proof of that. I have to use a certain one for receive because the other one doesn’t produce as good results. Just my 2 cents. Zack KD8KSN -Original Message- From: Clint Bradford Sent: Wednesday, January 12, 2011 3:43 PM To: Zachary Beougher Cc: amsat-bb@amsat.org Subject: Re: Yaesu FT-8800 ... I do not like the receive sensitivity ... Hmmm ... I just didn't experience that. Does your '8800 work fine for local/repeater work? Clint, K6LCS ___ 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: Yaesu FT-8800
Hi Zack! I don’t mean to be the odd guy on the block, but I do not like the 8800 for satellite work. I enjoy the full duplex function, and it is very easy to maneuver through the frequencies/bands using the mic, but I do not like the receive sensitivity. Every time I have tried to use it for satellite work I feel like I fight it the entire time trying to get a strong signal. I can’t exactly make a very accurate judgment on it either since I have only used it a few times. Don't apologize for posting an opinion. As you mentioned with your TH-G71As, there can be differences between two of the same model of radio. I bought two FT-8800s a year or so ago. One is in Mexico with an Elk antenna I left down there, and the other one needs to have those knobs replaced. The 8800 is my backup to that IC-2820H I mentioned in an earlier post as my full-duplex FM satellite radio. The sensitivity could be a little better, but I'm happier with it than other radios like my DJ-G7T. I probably should send it off to Yaesu to get those knobs replaced, and then try it again on the FM birds. 73! Patrick WD9EWK/VA7EWK http://www.wd9ewk.net/ If others say it works well, I would have to go with the general consensus since I don't use it much. The 2 THG71As, and now the THD7A and 1 THG71A (yeah, I know the D7 is full duplex, but that is another story) are my regular satellite equipment. 73! Zack KD8KSN -Original Message- From: Clint Bradford Sent: Wednesday, January 12, 2011 2:19 PM To: amsat-bb@amsat.org Subject: [amsat-bb] Re: Yaesu FT-8800 Great for sat work - like Patrick mentioned. For portability, I have installed mine in an ice chest ... photos at ... ttp://tinyurl.com/cooler-radios Clint Bradford, K6LCS ___ 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 ___ 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: Yaesu FT-8800
I have three of the FT-8800 mobiles. They work great for satellite. It is my FM radio for sat operation installed here at home. I've tried other dual band radios, but the FT-8800 is much preferred. The downside is that I too have noticed that they lack sensitivity especially on 70cm. Yes, I measured it on a signal generator. They are more than 5 to 7 db down from other radios that I have. But they do have better intermod immunity that most radios. I have used one of my FT-8800 units with a hand held Arrow antenna and short coax for club and class demos with good success. Don't expect it to hear the weaker sats well, like SO-50, on the end of about 75' of coax on steerable beams on the roof. My solution for this at home was to place a SSB preamp at the antenna on the roof. With that setup I can hear SO-50 horizon to horizon. Without the preamp I have drop outs and signals are very weak at the horizon. Ernie W8EH On 1/12/2011 3:43 PM, Clint Bradford wrote: ... I do not like the receive sensitivity ... Hmmm ... I just didn't experience that. Does your '8800 work fine for local/repeater work? Clint, K6LCS ___ 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: Yaesu FT-8800
At 12:17 PM 1/12/2011, Patrick STODDARD (WD9EWK/VA7EWK) wrote: Hi Zack! I don't mean to be the odd guy on the block, but I do not like the 8800 for satellite work. I enjoy the full duplex function, and it is very easy to maneuver through the frequencies/bands using the mic, but I do not like the receive sensitivity. Every time I have tried to use it for satellite work I feel like I fight it the entire time trying to get a strong signal. I can't exactly make a very accurate judgment on it either since I have only used it a few times. Don't apologize for posting an opinion. As you mentioned with your TH-G71As, there can be differences between two of the same model of radio. I bought two FT-8800s a year or so ago. One is in Mexico with an Elk antenna I left down there, and the other one needs to have those knobs replaced. The 8800 is my backup to that IC-2820H I mentioned in an earlier post as my full-duplex FM satellite radio. The sensitivity could be a little better, but I'm happier with it than other radios like my DJ-G7T. I probably should send it off to Yaesu to get those knobs replaced, and then try it again on the FM birds. 73! Patrick WD9EWK/VA7EWK http://www.wd9ewk.net/ Just reading the mail. I wonder if anyone uses the TM-700 or TM-710 for satellite? Are they duplex? They are supposedly the mobile mate to the TH-D7 and new TH-D72. Looking at them for potential future use on both APRS and Sat as a mobile. 73, Ed - KL7UW, WD2XSH/45 == BP40IQ 500 KHz - 10-GHz www.kl7uw.com EME: 144-1.4kw*, 432-100w*, 1296-testing*, 3400-winter? DUBUS Magazine USA Rep dubus...@hotmail.com == *temp not in service ___ 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: Elk vs Arrow
You sure that fellow didnt spell engineer---injuneer'afterall, he was looking for an Arrow... ahem.. From: Clint Bradford clintbra...@earthlink.net To: amsat-bb@amsat.org Sent: Wed, January 12, 2011 12:03:25 PM Subject: [amsat-bb] Elk vs Arrow ... The Arrow does not publish any gain numbers ... ... ELK publishes the normal numbers you would expect ... Now, after reading previous posts the past day on this, the FIRST thing that comes t mind is whether or not the writer got his antenna as a freebie as he demeans other antenna alternatives ... AND I WISH NONE OF US HAD TO THINK LIKE THIS. Because a writer here wrote a mini-review of the Elk, and stated it was very impressive as compared to the Arrow. I have to tip my cap to him for his honesty - he apparently (and hopefully!) won't let availability of freebies sway his opinion of actual performance. But another AMSAT member is impressed with receiving free equipment - which is being shown to cloud the truth as to performance between competing equipment. Some think Arrow's owner is arrogant in that he didn't commission a formal test on the gain of his antennas. On the other hand, those of us that have used them know that they work. I had an engineer client purchase one from me back when I worked for HRO about five years ago. He was standing outside, waiting for me to open shop the next morning, carrying his Arrow to return. This cannot possibly work, he adamantly exclaimed. It is engineered all wrong. I want a refund. Because i had recommended the product due to me own personal experience with them, part of me wanted to professionally challenge him and learn more about his overnight experience with the Arrow. But seeing how determined he was about it being engineered all wrong, I changed my thinking to, Hey, I can purchase it myself at a open item discount. And I did. And it is the VERY SAME antenna I use to this day for demos and presentation. BUT - back to the last few messages. What should we all learn? Unfortunately, we now have to think behind the scenes when we read felow AMSAT members' product reviews. We're seeing the fact that some vendors give away products has been able to sway and taint honest reporting. 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 ___ 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] TH-D7A Transmit Issues - Or Maybe Arrow Issues????
Since we are on the subject of satellite equipment, I have a question: I was on AO51 a bit ago, and I was able to get in okay at the beginning using the THD7A for transmit, but as the pass went on it was impossible for me to get in, even when there was dead silence. I tried the D7 afterward (using the Arrow like I would for a pass) on a couple local repeaters, and I was having a hard time getting into them, when usually I could hit them with a duck. I pulled the Arrow off and stuck the duck on, and I can get into all the repeaters fine. Keeping all of that in mind, I went back to the Arrow and put a THG71A on in place of the D7 (same battery that was in the D7), and I could hit the repeater okay. I put the D7 faceplate back on, and it would not work. With the above information, I am getting indications of both an issue with the radio and/or Arrow. Any ideas as to what the issue might be Zack KD8KSN ___ 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: Yaesu FT-8800
2011/1/12 Ernie Howard w8eh.er...@gmail.com I have three of the FT-8800 mobiles. They work great for satellite. I have FT-8900 in my car (which is pretty much the same radio, except with 2 additional bands, 28 and 50 MHz). I am quite happy with the sensitivity of the radio, no problems hearing AO-51 and having few QSOs with suitable passes with Diamond NR770 mobile whip in the tailgate of my vehicle. Usually passes rising not higher than ~60 degs are quite good but the whip is not that good in higher elevations. What I particularily like (besides the sat-capability) is that normally I am using the left side of the radio for monitoring the local repeaters while right side acts as an APRS transmitter (with TinyTrak attached). What I don't like is the wobbly and fragile feeling of knobs of the radio. The first FT-8900 I bought was DOA right out of the box, but after it got replaced with another one, the current unit has served few years flawlessly. 73 de Ari OH3KAV Tampere, Finland (grid: KP11) ___ 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: TH-D7A Transmit Issues - Or Maybe Arrow Issues????
I did an additional test since my last email... I tried two different radios (D7 and G71) using the same battery and I CANNOT get into the local repeater now. I came inside the house, put the duck on, and I can hit the repeater fine. This would narrow it down to an issue with the Arrow. Does anyone have any ideas what might cause these symptoms? I have not changed anything with it. Zack KD8KSN From: Zachary Beougher Sent: Wednesday, January 12, 2011 5:29 PM To: amsat-bb@amsat.org Subject: TH-D7A Transmit Issues - Or Maybe Arrow Issues Since we are on the subject of satellite equipment, I have a question: I was on AO51 a bit ago, and I was able to get in okay at the beginning using the THD7A for transmit, but as the pass went on it was impossible for me to get in, even when there was dead silence. I tried the D7 afterward (using the Arrow like I would for a pass) on a couple local repeaters, and I was having a hard time getting into them, when usually I could hit them with a duck. I pulled the Arrow off and stuck the duck on, and I can get into all the repeaters fine. Keeping all of that in mind, I went back to the Arrow and put a THG71A on in place of the D7 (same battery that was in the D7), and I could hit the repeater okay. I put the D7 faceplate back on, and it would not work. With the above information, I am getting indications of both an issue with the radio and/or Arrow. Any ideas as to what the issue might be Zack KD8KSN ___ 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: Zack's Setup
... having a hard time with the Arrow ... stuck the duck on, and I can get into all the repeaters fine ... Check out Arrow ops on both 2M and 440 - and see if there might be a short or problem with either of the gamma matching elements. Are there any connectors or jumpers between the Arrow's leads and your equipment? If so, check their integrity. It just sounds like it's going to be a simple fix, Zack! Clint, 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
[amsat-bb] Re: Zack's Setup
... Arrow diplexer ... Didn't think of that! Hasn't been a recent major issue for Arrow ... but definitely a possibility! Clint, K6LCS ___ 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: Zack's Setup
Thanks for the tips guys! I should have thought about it beforehand, but the issue was the 2m coax. Never though to check it. Thanks for putting me back on the air! ;-) 73! Zack KD8KSN -Original Message- From: Clint Bradford Sent: Wednesday, January 12, 2011 5:44 PM To: AMSAT BB Subject: [amsat-bb] Re: Zack's Setup ... having a hard time with the Arrow ... stuck the duck on, and I can get into all the repeaters fine ... Check out Arrow ops on both 2M and 440 - and see if there might be a short or problem with either of the gamma matching elements. Are there any connectors or jumpers between the Arrow's leads and your equipment? If so, check their integrity. It just sounds like it's going to be a simple fix, Zack! Clint, 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 ___ 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: TH-D7A Transmit Issues - Or Maybe Arrow Issues????
Zack, Do you have any way to measure RF output power from the radio? A power meter (or SWR meter) that indicates forward power. If you do, measure power with Arrow connected to output of the meter. Measure reflected power (or SWR). If you have a dummy load connect it to the meter and test the radio with that and compare that with what you see with the antenna connected. A duck is not a good 50-ohm load and depends on the field of the radio case to provide a good match. So connecting a duck to a power or SWR meter will not give an accurate indication. If the arrow is pointed at the repeater in the proper polarity it should indicate at least couple s-units higher received signal than a duck because the Arrow has gain and a duck actually has loss. Another thing that might get you with your simple comparison is the battery. Can you measure the voltage? Even though radios and antennas seem to be different a soft battery can drive you nuts with varying results. If you have fresh charged spare battery try it with your comparison tests. 73, Ed At 01:42 PM 1/12/2011, Zachary Beougher wrote: I did an additional test since my last email... I tried two different radios (D7 and G71) using the same battery and I CANNOT get into the local repeater now. I came inside the house, put the duck on, and I can hit the repeater fine. This would narrow it down to an issue with the Arrow. Does anyone have any ideas what might cause these symptoms? I have not changed anything with it. Zack KD8KSN From: Zachary Beougher Sent: Wednesday, January 12, 2011 5:29 PM To: amsat-bb@amsat.org Subject: TH-D7A Transmit Issues - Or Maybe Arrow Issues Since we are on the subject of satellite equipment, I have a question: I was on AO51 a bit ago, and I was able to get in okay at the beginning using the THD7A for transmit, but as the pass went on it was impossible for me to get in, even when there was dead silence. I tried the D7 afterward (using the Arrow like I would for a pass) on a couple local repeaters, and I was having a hard time getting into them, when usually I could hit them with a duck. I pulled the Arrow off and stuck the duck on, and I can get into all the repeaters fine. Keeping all of that in mind, I went back to the Arrow and put a THG71A on in place of the D7 (same battery that was in the D7), and I could hit the repeater okay. I put the D7 faceplate back on, and it would not work. With the above information, I am getting indications of both an issue with the radio and/or Arrow. Any ideas as to what the issue might be Zack KD8KSN ___ 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 73, Ed - KL7UW, WD2XSH/45 == BP40IQ 500 KHz - 10-GHz www.kl7uw.com EME: 144-1.4kw*, 432-100w*, 1296-testing*, 3400-winter? DUBUS Magazine USA Rep dubus...@hotmail.com == *temp not in service ___ 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: TH-D7A Transmit Issues - Or Maybe Arrow Issues????
Zack, I use my TH-D7A with a home brew Dual band yagi (Kent Brittan's Plans). I note that once I dial in the proper polarization on the antenna I can work most of the pass with only slight adjustments. As the pass nears it's end (these are South to North passes) I notice I have to readjust the polarization of the antenna quite radically. One thing with the arrow is that the two bands are at 90 degrees to each other, I've always wondered how that affects things. If you're dialed in on 70cm, you're going to be off on 2m and vice versa. My homebrew antenna has both bands on the same plane. Clear Skies Rick Tejera Editor SACnews, Public Outreach Coordinator Saguaro Astronomy Club Phoenix, Arizona www.saguaroastro.org saguaroas...@cox.net K7TEJ, AMSAT 38452 -Original Message- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of Zachary Beougher Sent: Wednesday, January 12, 2011 15:29 To: amsat-bb@amsat.org Subject: [amsat-bb] TH-D7A Transmit Issues - Or Maybe Arrow Issues Since we are on the subject of satellite equipment, I have a question: I was on AO51 a bit ago, and I was able to get in okay at the beginning using the THD7A for transmit, but as the pass went on it was impossible for me to get in, even when there was dead silence. I tried the D7 afterward (using the Arrow like I would for a pass) on a couple local repeaters, and I was having a hard time getting into them, when usually I could hit them with a duck. I pulled the Arrow off and stuck the duck on, and I can get into all the repeaters fine. Keeping all of that in mind, I went back to the Arrow and put a THG71A on in place of the D7 (same battery that was in the D7), and I could hit the repeater okay. I put the D7 faceplate back on, and it would not work. With the above information, I am getting indications of both an issue with the radio and/or Arrow. Any ideas as to what the issue might be Zack KD8KSN ___ 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: Zack's Setup
ZACK ... the issue was the 2m coax ... PHEW! I'll re-call my FedEx shipment to you with my Motorola test equipment ... (grin) I have learned that MANy times the SIMPLEST of things in a multi-part equation are notorious for being the culprits ... Clint, K6LCS ___ 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] Palm Springs HamFest Jan 29
The Desert Rats and Palm Springs DX Club HamFest is coming up January 29 ... and the club just released the special edition newsletter. AMSAT is all over the newsletter! From the front page article to the brochure of the event ... AMSAT's presence will be there! Newsletter posted at ... http://tinyurl.com/RATS-2011 Clint, K6LCS ___ 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] HO-68 and SO-67 Trouble
So, I've been trying to use SO-67 and HO-68 for a few days now, and I have had no luck. For equipment, I've been using a Yaesu FT-60R programmed with the primary frequencies and two secondaries programmed on either side for Doppler shift. My antenna is an ELK 2m/440cm. Now, I know SO-67 has been down, but all the passes I've tried have been after that satellite was supposedly repaired and back on schedule. Nada. Not even quieting in the receiver. HO-68 has been a similar bust. I checked the schedule posted from Alan and highlighted the ones that were supposedly on for FM/PACSAT over NA and heard nothing. The latest pass I tried was at 17:58 UTC 89 degrees straight overhead, but still I heard nothing and it was supposed to be on. I know my receiver is working, because I checked all my programmed frequencies, and I have been able to work AO-27 and AO-51 in the past few days, and I heard the ISS Packet beacon several times as well. Now that I think of it, I haven't heard SO-50 either. Any thoughts? I've had better luck on the weaker sats with my mobile and a short whip than I have with this ELK antenna. What gives? - Jake, K3UAZ ___ 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: HO-68 and SO-67 Trouble
Hi SO67 is currently scheduled over Asia. See www.amsatsa.org.za for the schedule. USA is coming up again first week Feb Hans ZS6AKV -Original Message- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of Giacobbe Lauser Sent: 12 January 2011 08:35 PM To: amsat-bb@amsat.org Subject: [amsat-bb] HO-68 and SO-67 Trouble So, I've been trying to use SO-67 and HO-68 for a few days now, and I have had no luck. For equipment, I've been using a Yaesu FT-60R programmed with the primary frequencies and two secondaries programmed on either side for Doppler shift. My antenna is an ELK 2m/440cm. Now, I know SO-67 has been down, but all the passes I've tried have been after that satellite was supposedly repaired and back on schedule. Nada. Not even quieting in the receiver. HO-68 has been a similar bust. I checked the schedule posted from Alan and highlighted the ones that were supposedly on for FM/PACSAT over NA and heard nothing. The latest pass I tried was at 17:58 UTC 89 degrees straight overhead, but still I heard nothing and it was supposed to be on. I know my receiver is working, because I checked all my programmed frequencies, and I have been able to work AO-27 and AO-51 in the past few days, and I heard the ISS Packet beacon several times as well. Now that I think of it, I haven't heard SO-50 either. Any thoughts? I've had better luck on the weaker sats with my mobile and a short whip than I have with this ELK antenna. What gives? - Jake, K3UAZ ___ 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
