Ham Radio AO-51 Satellite, again

Тәжірибелік нұсқаулар және стиль

SO-50 is a current alternative to AO-51
ww2.amsat.org/?page_id=1015
AO-51 Update
November 29, 2011
It is with a heavy heart I report that AO-51 has ceased transmission and is not responding to commands. The last telemetry data indicated that the third of six batteries was approaching failure to short, and observations indicate the voltage from three cells is insufficient to power the UHF transmitters. The IHU may continue to be operative. Initial tests with the S band transmitter were also not positive, although more attempts are in order. We have tried leaving the satellite in an expected state where if voltages climb high enough, the 435.150 transmitter may possibly be heard.
The command team will regularly attempt communications with the satellite over the coming months (and years). There is always the possibility that a cell will open and we could once again talk to our friend while illuminated. Thanks to all who helped fund, design, build, launch, command, and operate AO-51. It's 7 year mission has been extraordinary. Please support AMSAT's Fox-1 project, and other AMSAT projects worldwide with your time and money.
For the AO-51 Command Team,
73, Drew KO4MA
AMSAT-NA VP Operations
I try my luck at working AO-51.
Bracket video -
• Arrow Antenna Bracket
N1ASA tells us how to correctly do this!
hvsatcom.org/Satcom/sats.pdf
I use Orbitron - Satellite Tracking software. It is free, you can download it from:
www.stoff.pl
A very good web based site for satellite prediction is:
www.heavens-above.com/
Grid squares are used for location. My grid is CM99. You can learn more about this at;
www.arrl.org/locate/gridinfo.html
Arrow Antennas-
www.arrowantennas.com/
Randy

Пікірлер: 276

  • @rick15666
    @rick1566611 жыл бұрын

    This is the video that inspired me to finally get my license. Great to see all the activity on your channel, I really enjoy it.

  • @MrSmithChart
    @MrSmithChart12 жыл бұрын

    Thanks for posting all of your vids Randy. This was a great intro for me to learn about ham radio in general. I remember the day I finally worked AO-51 and received a QSL card in the mail. There are so many facets to the hobby, the more I learn, the more I understand how much more learning I have to do... 73

  • @pantucci
    @pantucci15 жыл бұрын

    Thanks so much for this vid! I'm a new ham, and have just made my first AO-27 contacts with an FT-60 and RH77 antenna. This video helped me with the theory greatly. Thanks much for all your videos, they're very helpful!

  • @GeekyRebel
    @GeekyRebel9 жыл бұрын

    Nice video. Interesting that this is possible with such a small setup

  • @craigschmidtmedia
    @craigschmidtmedia16 жыл бұрын

    Randy and all: This is a great series of videos, full of great information. After 35 years of ham radio, nobody ever showed me or even talked about "how-to" for satellite QSO's. I thought it was too difficult. Randy made it easy to understand and I'm having a blast. I got on the air and made several contacts this weekend on A0-51 and A0-27. Thanks Randy. You are a true "Elmer" to thousands of hams. Hope we can have a QSO someday. Craig WB0GFZ

  • @EdwardRaybould
    @EdwardRaybould17 жыл бұрын

    Randy, I've been subscribing to your videos for a few months. Always so informative. I made one contact through AO-51 two summers ago with my Arrow Antenna and a Kenwood TH-D7. Didn't record it. Next time I will. Easy to see from your video how the tripod for the antenna makes things easier. 73, Ned N8OIF

  • @webley445
    @webley44515 жыл бұрын

    Wow! Been thinking of getting the Tech lic, now I want it! thanks for the demo, looking forward to more.

  • @kosyokostov2751
    @kosyokostov275110 жыл бұрын

    Randy thanks for the great video

  • @steveinkentucky
    @steveinkentucky14 жыл бұрын

    Randy, I've stated it in emails to you and I'll reiterate it here. Thank you for talking the time to voluntarilly make these videos. For those of use who are new to sats, you really make it a lot easier.

  • @Sparky73dx
    @Sparky73dx17 жыл бұрын

    Congratulations randy! Awesome video (!)

  • @MarsCityRadio
    @MarsCityRadio16 жыл бұрын

    Thanks Randy: I transcoded this to IPod and watched it with several friends yesterday. Needless to say, it was just the thing to pry me back to HamTestOnline and getting the Gen and Extra done! Thank you for your enthusiasm. Eric -N9DXV

  • @sonick808
    @sonick80816 жыл бұрын

    Just passed my General and am holding my CSCE!!! Thanks for the vids, they were the catalyst pushing me over the edge. Rig shopping shortly, hope to catch you on the airwaves. 73 Jayson

  • @Huberto252
    @Huberto25216 жыл бұрын

    Thanks for the video Randy, it's fantastic! Greetings from Spain Huberto

  • @K7AGE
    @K7AGE12 жыл бұрын

    Thanks for the note. Yes, there are may aspects to the hobby. Lots of new things to try and learn.

  • @G4MOF
    @G4MOF15 жыл бұрын

    Great video! Thanks for the post 73

  • @n3vqh
    @n3vqh16 жыл бұрын

    Great Video... Good job on the pass and setup. Great Video series also 73's Mike York, PA

  • @xe1yjs
    @xe1yjs17 жыл бұрын

    Very interesting. Congratulations Randy

  • @digitalboomer
    @digitalboomer13 жыл бұрын

    Great video. Thanks for sharing. Pretty impressive actually 73's

  • @thekid765
    @thekid76517 жыл бұрын

    congrats randy. Great Video. -Curtis

  • @outlawtour
    @outlawtour7 жыл бұрын

    that was awesome! thank you for sharing

  • @KC2QBU
    @KC2QBU17 жыл бұрын

    Randy, Nice video. I finally am able to see how it's done. I have an 817 and a tripod. All I need to get is an Arrow antenna. Great job!73

  • @Jay-hr9ci
    @Jay-hr9ci4 жыл бұрын

    Looking forward to trying this out in 2020!!! Cheers!

  • @K7AGE
    @K7AGE16 жыл бұрын

    Craig, thanks and glad to hear that you have be able to get on the satellite from watching the videos. My PSK31 series is also very popular. Randy

  • @litedave
    @litedave15 жыл бұрын

    Very good video and presentation. Interesting part of the ham hobby.

  • @XXXJAB
    @XXXJAB16 жыл бұрын

    Hi Randy, another very interesting video! I admire your enthusiasm. Keep up the good work, you do a great job for amateur radio. 73

  • @SIXPACK110
    @SIXPACK11016 жыл бұрын

    73 Randy, thx for the vid!

  • @Roddy1965
    @Roddy196514 жыл бұрын

    Great! Nice setup. Good video.

  • @jr8xlf56
    @jr8xlf566 жыл бұрын

    Very nice video!

  • @markdoyle8713
    @markdoyle87133 жыл бұрын

    Great video. I have been trying to work so-50 with my baofeng’s and my th-d74. I am struggling . I got the arrow II and that made a huge difference. But trying to do so many things at once is Challenge. also that low angle and the results you got was amazing . I seem to need 60 degrees max elev to get that clarity here in Florida . Maybe I should pick a different sat. Thank you 🙏

  • @Dan-qp1el
    @Dan-qp1el3 жыл бұрын

    Great vid! Thank you

  • @Superclubradio
    @Superclubradio17 жыл бұрын

    Hi randy, nice to see your video. At least this explains how to make QSO's on this bird just with a handy and the explanation of each detail. Wonderful great job. 73's de 5B4AAI (Nicholas)

  • @M0YKSHamRadio
    @M0YKSHamRadio17 жыл бұрын

    Great result Randy, nice and simple set up working great its good to see what can be done without too much expense. 73 Simon

  • @HondaGuy2009
    @HondaGuy200917 жыл бұрын

    Randy, Great Video! Very Informative from Start to Finish. AO-51 is always so crowded on those Western Passes so getting two contacts is excellent. Been on the birds about three years myself and they are challenging,ESPECIALLY hearing them! 73,Andy K8AND

  • @sonick808
    @sonick80816 жыл бұрын

    Thanks Randy, that worked. Getting my tech license Sep15 and will be picking up a TH-F6 HT in about 3 weeks.

  • @N4BWR
    @N4BWR16 жыл бұрын

    Nice video. I managed to get into AO-51 with the two-meter vertical on the roof, but not too well. I need to get an Arrow. Your videos gave me the idea of making a video on how to receive images from the NOAA satellites.

  • @K7AGE
    @K7AGE13 жыл бұрын

    @popmomcorn It is really amazing that gear that you can hold in your hand can work through a satellite. Good luck on your test.

  • @JamesCutlervk2tim
    @JamesCutlervk2tim16 жыл бұрын

    Nice work! I've heard of people cracking Ham Sats on handhelds, but I thought it was a myth! I am impressed with what you have done, very nice! 73 from Jamie, VK2TIM in Sydney Australia.

  • @robrdavis
    @robrdavis16 жыл бұрын

    Hi Randy. Good job showing how easy LEO satellites can be using only an HT and an inexpensive antenna. I've made a couple of contacts using my Yaesu FT-60 and an Elk 2M/440 L5 (5 element 2 meter/ 440 mHz Log Periodic). You've got a nice setup with the tripod and the boom extension. Keep the good videos coming! 73 de KI6BEO

  • @andrestoril
    @andrestoril16 жыл бұрын

    Great video!

  • @MrAlanNZ
    @MrAlanNZ11 жыл бұрын

    Hi, Thank you very much for your video, It has inspired me to give the satellites a go again. 20 years ago I worked RS10/11 many times and had a heap of fun. Up on 2M down on 10M. Running 10watts SSB on 2m and using a 2 element X Yargi, and a Delta loop on 10m for the down link, all home brewed. I remember also working a mobile station as well. Thanks heaps. You are an inspiration to hams world wide. 73 de Alan ZL4FM

  • @elfranz
    @elfranz16 жыл бұрын

    very very clever video, thanks!

  • @edwardzb3e
    @edwardzb3e15 жыл бұрын

    hi randy great video, has inspired me to experiment with sat communications great fun. Thanks all the best from Gibraltar. 73

  • @VRMN8R
    @VRMN8R15 жыл бұрын

    HI again Randy. I should have wrote that I track the AO-51 and the ISS and I only try (for now) contacts when the satellites are pretty much directly above me. I did order an arrow beam though. Thanks again!!

  • @EpicMonkeyFailzGaming
    @EpicMonkeyFailzGaming13 жыл бұрын

    Good Videos Man!!! Your videos and some others is what inspired me to get my Call..... Thanks and 73s "Spedz"

  • @K7AGE
    @K7AGE17 жыл бұрын

    The radios that I was using probably only has a few miles of range taking to someone direct. We are using the satellite to repeat our signals to talk to someone 100s or 1000s of miles away. Since the satellite can hear many many stations, the contacts are very short to try and allow many people to share the resource. Randy

  • @K7AGE
    @K7AGE15 жыл бұрын

    Motorized V/UHF antennas will help, usually with longer antennas. KU feed is on the wrong frequency. AO-51 usually does not lend itself to long conversations, since it is shared be everyone within the coverage of the satellite. Randy

  • @Karpour
    @Karpour13 жыл бұрын

    That is so cool! I already grew up with internet but this definitely is alot more impressing :)

  • @Aaroneus76
    @Aaroneus7615 жыл бұрын

    Great video learned something new from your video, I will try that sat track program qso from VA3FNI Canada

  • @sparkybluefox
    @sparkybluefox15 жыл бұрын

    Hi Randy: Great fun! sweet video! Lotsa fun! I used to chase AmSats with a hand held yagi in my backyard in Michigan.... great fun! 73 ab8b

  • @K7AGE
    @K7AGE15 жыл бұрын

    We are using radio repeater in the satellite to extend the range of our handheld radios. Using the satellite, we can work stations up to 2,500 miles away.

  • @combatwombat71
    @combatwombat7114 жыл бұрын

    Hi Randy - apparently AO51 had a very close shave with Formosat 3D on 1st March... thankfully it didn't impact and survived! Would be a shame to lose such a fun satellite through a collision. 73 - Rob VK2GOM / G0MOH

  • @ccw5pfg
    @ccw5pfg13 жыл бұрын

    Nicely done video. It is a good primer for those who have no one around to elmer them with the LEO satellites. One thing I might add to novice satellite operators -- you need to do a lot of listening. Write down or record the calls coming throughout the pass. Select a good sounding station, then give them a call when the opportunity arises. Don't sit there and throw your call out endlessly. Chances are, no one can hear you and you are interfering with people who are into it clearly.

  • @sonick808
    @sonick80816 жыл бұрын

    the orbitron page also has an excellent colored contour map; helps a bit to see topography.

  • @obalitas
    @obalitas16 жыл бұрын

    nice video!

  • @on4hf
    @on4hf16 жыл бұрын

    Hi Randy, like your video. Seems easy to work satellites like that. I must try it also. 73's from Belgium. Eric -- ON4HF

  • @RonOverdrive
    @RonOverdrive14 жыл бұрын

    Just tried working AO-51 myself this past weekend and I look forward to trying again when the weather gets a bit better. My radio is water proof, but I doubt the arrow antenna can handle the rain.

  • @K7AGE
    @K7AGE11 жыл бұрын

    Yes I have. It has been many years. I haven't tried in a long time to try and catch them.

  • @j0llyr0ger54
    @j0llyr0ger5413 жыл бұрын

    @K7AGE LOL!!!!!!! "No Cellphone Shack" You got THAT right!! No longer a parts supplier, but a toystore. Love your videos BTW 73

  • @cedricfaure7773
    @cedricfaure77737 жыл бұрын

    Hi, thanks for this video, could you tell me more about your rotating systems ? What do you use for azimut, elevation and also to move your antenna from vertical to horizontal position ? 73 from Cedric - F5PSR

  • @K7AGE
    @K7AGE17 жыл бұрын

    Thanks, Randy

  • @fleabagski
    @fleabagski15 жыл бұрын

    Excellent video, thanks for posting. Stephan VK3GTR

  • @K7AGE
    @K7AGE17 жыл бұрын

    I have had a couple of guys ask about this. I'll try and do a short video this weekend. Stayed tuned! Randy

  • @K7AGE
    @K7AGE16 жыл бұрын

    Yes, there have some news in some of the magazines. Randy

  • @K7AGE
    @K7AGE16 жыл бұрын

    Danke, Randy

  • @K7AGE
    @K7AGE16 жыл бұрын

    HI, Yes the antenna is 144/440 dual band with a duplexer with one feed line to the radio. Randy

  • @kapilagm77

    @kapilagm77

    4 жыл бұрын

    Hi, What are the satellite uplink and downlink frequencies?

  • @rv3dhc
    @rv3dhc15 жыл бұрын

    Hi Randy. I watched some videos from you on yuotube and wanna say - you're good teacher for all of us :) Good work on HT with AO-51. We use it also from RK3DXB Club, and it's much noise when sattelite come through the Russian territory, that's thrue. Thanks again for video. 73! De Tony.

  • @GeoN0JRJ
    @GeoN0JRJ16 жыл бұрын

    Randy, I enjoy all your videos. Thanks for the email help on getting my youtube videos loaded as well. Ham it up! George, N0JRJ

  • @eibeer
    @eibeer17 жыл бұрын

    nice one randy 73

  • @LGWhale
    @LGWhale17 жыл бұрын

    Great video Randy. I was considering buying an Arrow Antenna when I found your video. You just sold another one for them. Thanks. 73 de KD0ASQ (Jim)

  • @kb5zcs
    @kb5zcs16 жыл бұрын

    This is a great video get you started.

  • @dajohnso4374
    @dajohnso437414 жыл бұрын

    Excellent Video! -Darren Johnson W5DTJ

  • @SuperDemon1973
    @SuperDemon197313 жыл бұрын

    loving the videos K7AGE as i am realy intrested in amature radio weldone

  • @ChrissyboyH44
    @ChrissyboyH4416 жыл бұрын

    Incredible. Thats why hight.. or officially 'distance away from the earth' itself is such an incredible thing with radio waves to just in reality travel on forever, cheers and thanx!

  • @SP6QKX
    @SP6QKX15 жыл бұрын

    Congratulations !! vy73 Daniel from Poland ..

  • @godfreyhamshire
    @godfreyhamshire6 жыл бұрын

    Dear K7AGE Wow what an interesting video, I wanted to chase Ham Radio Satellite's and your set up is easy to reproduce and do able very practical. I like the idea of pre typing out the information needed. Thank you very much I have been wondering how I could do this myself now I have all the information. Regards and 73's

  • @kc9mav
    @kc9mav16 жыл бұрын

    Thanks!

  • @rredbeak
    @rredbeak13 жыл бұрын

    Randy, Great videos and very informative. Tell me,are you working the sats through the trees as on the video OR is there a clear space behind the camera. Cheers and TY Rod VK4EZY

  • @K7AGE
    @K7AGE16 жыл бұрын

    Correct, duplex operation of the radio is not required. But, some guys operated with full duplex to hear themselves coming back. If the radio has duplex, you can probably disable that feature. You will need the duplexer in the antenna to work both bands from one coax. Randy

  • @HistoryWithAnthonyO
    @HistoryWithAnthonyO13 жыл бұрын

    After years of watching several videos on youtube and reading up on working sats I finally worked AO-51 yeaterday at 23:30 UTC with a FT 817 and a rubber duck antenna. Worked K8YSE in Ohio with 2.5 watts on battery power. Maybe I'll order the arrow when money permits. 73 and thanks for all your fine work W6CSA EM50

  • @leifsjodin8706
    @leifsjodin87067 жыл бұрын

    Hi Great vid. Im making a short film about ham radio for my friends. I wonder if i could use a couple of seconds of your vid to my little project?

  • @Qstick333
    @Qstick33313 жыл бұрын

    Curious if you have any pictures or instructions on the extension you added to the antenna?

  • @TwitchRadio
    @TwitchRadio9 жыл бұрын

    i'll have to try this sometime.. maybe when i go out camping. nice video randy... 73

  • @GregMcGann1983
    @GregMcGann198314 жыл бұрын

    Great video! I enjoyed watching. 73 es GL

  • @K7AGE
    @K7AGE12 жыл бұрын

    @mikilofo90 Yes. Some of the other satellites would require other types of radios and antennas.

  • @sparky42
    @sparky4217 жыл бұрын

    Hey Randy , I know Richard N1ASA, work him all the time . He is a great operator and works about 10 guys each pass . He is also a professor of astronomy.I am thinking of going the arrow w/ the handheld route also so I can work the birds from my tree house. 73's om de AL

  • @ccmdphd
    @ccmdphd3 жыл бұрын

    any video or info about how you connected the camera tripod? TIA.

  • @K7AGE
    @K7AGE11 жыл бұрын

    Looking at the status on the AMSAT page, there are a couple reports of hearing AO-51. But, it does not look like it is operational at all. The reports may have been errors. I think it is dead, unless what you are reading is based on better status.

  • @JustinKingOffroad
    @JustinKingOffroad15 жыл бұрын

    I am assuming right after your callsign you are giving your grid location right? I am just starting to get into satellite work and hope to be on the air soon. I am already successfully hitting the ISS with APRS data from an omni directional antenna on 20 watts.

  • @sonick808
    @sonick80816 жыл бұрын

    cool rig!

  • @JerryHatrick
    @JerryHatrick11 жыл бұрын

    Great video. I have been trying for a few weeks now to connect with ANY satellite with no luck. I've watched videos and read on AMSAT about Doppler, frequencies etc. Now it would seem that this one isn't even working, correct? Any information on working satellites that I can attempt to connect with? I would really like to get more into this but am struggling with connection and hearing anything, wondering if the ones I am trying to connect to are even operating. Using HT with same antenna.73

  • @n6vmo
    @n6vmo16 жыл бұрын

    Great video. Brings back memories of the days operationg AO-10, AO-13 and AO-40. I did not catth your acknowlegdment of your first contact's callsign of WA7ETH. You did acknowledge his grid but never transmitted his call back for confirmation. You copied VE7CRE's call incorrectly as VE7CRT, but did get his grid CN89 correct. VE7CRE is indeed in CN89 and VE7CRT is in FN86.

  • @fuzzygear8690
    @fuzzygear86907 жыл бұрын

    Hello K7AGE, awesome video!! I´m trying the same here in Lisbon, Portugal. Would you like to try a satellite communication next Tuesday March 14th? Thanks!!

  • @MeLikeyTacos
    @MeLikeyTacos16 жыл бұрын

    Very cool, nice video. I can't wait to start playing with satellites :)

  • @penguinshamrock
    @penguinshamrock13 жыл бұрын

    @K7AGE Thank you Randy. Can a scanner antenna work for a ham radio?

  • @USNERDOC
    @USNERDOC15 жыл бұрын

    Randy - Wow! That was very cool. Thanks! 73 de KF7ETX David

  • @mateuszkaa
    @mateuszkaa16 жыл бұрын

    You are very good Randy :) Your films are excellent! :) 73! SQ9NKX

  • @dl2pan
    @dl2pan17 жыл бұрын

    Hello Rendy, nice video. Vy 73 de DL2PAN André.

  • @kc9mav
    @kc9mav16 жыл бұрын

    Hi, KC9MAV, I was wondering what ht, that is currently being sold right now would be good for sats?

  • @odbrew
    @odbrew9 жыл бұрын

    Great, another hobby to add to the pile lol. Thanks for the video!

  • @DW1PJM
    @DW1PJM12 жыл бұрын

    @K7AGE Thanks for the video..im not yet into satellite tracking but im very interested. By the way..did they use any ctss to access the frequencies? 73 d e VK2JMV/ DV1MV