My best satellite demo ever - 18 QSOs
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- เผยแพร่เมื่อ 8 ก.ย. 2024
- A few days before my satellite demo at the Raleigh Amateur Radio Society hamfest (RARSfest), I put the word out to satellite operators on mailing lists, Facebooks, Twitters, and even good old fashioned web forums, and boy did they come calling!
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Bonus video:
• Bonus video - My best ...
Without a doubt, I have never made 18 QSOs (contacts) on one satellite pass. What a great demo. Thanks to all the hams that contacted me: What a great demo. Thanks to all the hams that contacted me:
01- HP2VX - Virgilo- Panama
02 - 9Y4D - Christopher - Trinidad and Tobago
03 - N3JNX - Joseph - Pennsylvania
04- W5PFG - Clayton - Texas
05 - WH6ETF - Brandon - Florida
06 - NA1SA - Loon - Pennsylvania
07 - N4DCW - Michael - Kentucky
08 - W5RRR - Johnson Space Center - operated by John AB5SS
09 - W5CBF - Hector - Louisiana
10 - NS3L - Steve - Pennsylvania
11 - KJ4EU - Jerald - Kentucky
12 - K3RRR - Robert - Maryland
13 - K9KFX - Dru - Indiana
14 - AB1OC - Fred - New Hampshire
15 - VE2OTA - Donald - Quebec Canada
16 - N9LQ - Joel - Illonois
17 - K3RLD - Roy - Pennsylvania
18 - KE2QI - Robert - New York
This was on the 2019-04-20 - 1719 UTC - AO-91 pass.
Equipment:
Alaskan Arrow antenna with two of three sections assembled.
Kenwood TM-V71A
Bioenno 12V 9aH LiFePO4
You can see my FM mobile radio body support system here:
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Sponsored by Nordic PC, M2 Antenna Systems, Arrow Antenna, and Dog Park Software.
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Vertical video ;-) courtesy Jelmer Tiete @jelmt, also the thumbnail is from him. Thanks Jelmer!
73, John Brier KG4AKV
Contact #17! I had to turn it up to "11" to get in to make this one. Congrats on a great demo!
Roy! haha I tried to tag you on Twitter but I saw a tweet by K2MTS saying you were no longer on there. Thank you for contacting me and pumping the power up to make it happen!
Space Comms yep, I went cold turkey on Twitter. Its value is proven, for sure, but I'm not disciplined enough to stay out of trouble.
@@itswift Well said. I hear you.
No whistler, DMR, or other jammer!! Amazing!
LOL DMR.... I don't know how to spot that yet actually. What does DMR even sound like?
I was there. Thank you for the great Demo. I enjoyed it.
Had no idea that the polarity would change like that.
Glad you enjoyed it. You're welcome. Yup it changes!
Hey there
just found this by accident ! Glad I could be part of a great demo 73 from VE2OTA in Montreal.....
Hah! Nice. Thanks for being a part of it.
Very cool John! I hope you make many more contacts on demos.
Now I see that Arrow antenna is very good investment. 73
This video was my motive for getting my tech license. Can't even tell you how many times I've hit replay. KC1OWB
Wow! Well that makes me feel really good :-) I'm so glad and congratulations! It's been a while since I got my license but I recently upgraded to Extra so I can imagine in a small way how you feel getting licensed :-) Let me know if you have any questions on sats. Hopefully one day we can make contact over one :-)
73, John Brier KG4AKV
That's a great demo if I've ever seen one, hopefully this brings in more sat guys!
Thanks Jacob! I hope so.
Awesome demo, John. Glad I could be there to see it. Definitely gonna have to dust off the Kenwood and pull the trigger on the Arrow! 73 - KM4JKY
Thanks man! The Arrow needs you! Do it! 73!
Space Comms what kind of duplexer were you running on the back of the Kenwood? I remember seeing that you had one connected directly to the radio
MFJ-916B with a 90 degree so-239/pl-259 adapter.
I do have my licence for a bit over one week now, currently designing my own super portable duoband yagi and looking for a better radio than the Baofeng, too much QRM around here in Berlin but want to work sats too some day!
Great stuff! Congrats on getting your license. Good luck on sats too. You will love it.
Great demo John!
Thanks Chris!
I rate this demo S9+!
Haha thanks Dan.
Epic demo! I have the same Arrow antenna and now the same Kenwood radio... I've only used it with a dual-band vertical from my balcony so far, and this gives me some incentive to get a battery so I can try to make some contacts outdoors. Thanks for the great videos + 73!
It's a great radio for FM sats! Glad to incentivize this for you :-) You're welcome and 73 to you too!
@@SpaceComms what’s the antenna?
@@cubingbros9782 Arrow II. Might be hard to get in UK.
Great! 73 from Chile!
Thanks! 73!
Hi John....great demo.....I have been following you on TH-cam for a while now and I think its great what you do for amateur radio. I haven't made any sat contacts but I listen a lot. Back in my packet days before the internet I use to connect to the space shuttle packet system when they were up. Do you have a place on the net that has the times you plan on being on the sats..? Also how is your satellite base station setup coming along...? Looking forward to seeing it in action. 73.....Dale
Thanks Dale. That's cool you did packet with the shuttle. I never did any shuttle ham stuff. I don't always announce my sat operations but I do often enough on my Twitter account. As for the base station, I am planning on getting back on it in the next two months or so. It is slow going. Here is my Twitter account: twitter.com/SpaceComms1
Excellent video, as always, John! I'm getting ready to buy a good battery for LEO satellites. How has the Bioenno 12V 9aH LiFePO4 battery worked out for you? I'm assuming yours is the BLF-1209A? I've dabbled with a 7aH SLA battery, but it only stays above minimum required voltage for 15-30 minutes--for receive only. Just pressing PTT drops the voltage below the minimum.
Anyway, keep those excellent videos coming in!
Thanks! I've been using that battery for a few years now and it's still great. Yes that is the right model number. SLAs suck! haha they were a PITA for me. I have heard they are indestructible but I tried two or three and couldn't get them to do anything useful. Yes they are much lower voltage too. Just uploaded another little video about HuskySat-1! Thanks for the encouragement!
nice QSO man..
Thank you!
Well done John. I heard you but didn't have the angle. // KD9LTQ
Thanks Carl. Thanks for trying too. 73
What is that antenna that you are using? It looks a little bit different from the original Arrow 2 Antenna. Is that the Alaskan Arrow Antenna?
Yeah the Alaskan with the last third boom section removed.
It looks very good John! 73 de KE0STO
Nice. Hope to work you from GK03 de 8P6SH
Thanks! I hope we can make contact one day!
I’ve never done this, but I wonder is a circular polarized antenna might help? 73 de K9NUD
Yes it can help reduce fading when the polarity of the signal changes due to satellite tumbling or ionospheric effects.
Slayed it
Классно!
FB! Is new for me.I heard only on my handradio Kenwood TH-234 only from this may 2020.
DR Om,Your QTH is USA or Cuba(KG4)?
Hi, My QTH is USA. KG4 was used outside Guantanamo Bay for a while now (at least since 1998 when I got my call/license).
How much power were you running John?
I started at 10 watts. I tried 50 watts at least once but I'm not sure how much I went back and forth or where I ended up.
Very good. I should try 50 watts, maybe get a 50 watt mobile transceiver.
73 de KE0STO
@@keesvanoosbree5911I mean you don't need it unless you want to increase your likelihood of getting through others. I was thinking about it, there is one point in the video where the RX audio has crackling when I transmit. I was definitely running 50 then... that's a side effect of it sometimes. But you never hear it again. I may have went back to 10 watts after that. I'm a bit embarrassed to admit I really don't know. 10 watts is a nice balance though.
My favorite advantage to my setup over an HT is that it frees a hand, gives easier control, etc.
What about 23 and 13 cm bands would you need a different aerial ? Would that be very challenging to hear longer distance satalite transmissions.
23 cm can only be used for uplink due to ITU regulations. I have heard it is because the ITU doesn't want a broken amateur radio satellite to interfere with GPS signals. 13 cm... I know we have a few ham sats with 13 cm signals. HamTV on ISS is/was one (it's currently broken). All ham sats are in LEO (except QO-100). Yes you need a different antenna but as you go higher in frequency you can get more gain for same size/smaller antenna so that makes up for it I guess.
QO-100 has a 2.4 GHz uplink and 10 GHz downlink. You can see all kinds of antennas people use for them online.
I still need to find a video that explains what this is about, it get the grid square exchange now. How in the world are you logging all this though?
I record the audio and transcribe the contacts after the fact. Most sat ops do the same. It's just too fast to get it all if you are portable holding so many things. Maybe if you were operating an automated station inside a house.
I run Android things, but could you give me an idea on how to setup a recording system, for my FT817?
You just need an audio cable and recorder. Maybe a mono to stereo adapter. Maybe also an attenuator cable. The Sony ICDPX370 is popular with sat ops. This page can provide some inspiration too:
spacecomms.wordpress.com/audio-cable-for-kenwood-th-d72/
@@SpaceComms Heck, that worked like a charm! I am using a Sony ICD-PX820,(similar in size to yours).
@@micsherwood4930 w00t! Hope to hear you on the birds soon! If you don't mind me asking, what is your callsign?
@@SpaceComms W7WXX
@@micsherwood4930 Nice call. Hope to hear you on sometime. I try to work western passes these days as I have almost no grids out there.
HI Good Job! 73's From France 14FRS2507 Sébastien
nice, except for the people at the end of that yagi!
At the frequency and power level I was using it is safe.
What’s the point? Exchange call signs in crowded bandwidth to say hi and bye = BORING