AO-7 Amateur Radio Satellite 12/31/09
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Uploader Comments (NZ3M)
All Comments (13)
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Hello it seems that you manually compensate the doppler, do you confirm?
I see that the two vfo are paired but when you trasmit you adjust the tx freq.
Excuse but I'm an absolute begineer.
73 de in3aqk
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@DAN4279 This is 2m HAM radio. Receiving on 2m and transmitting on 70cm.
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@NZ3M Thanks - I have been working the fm birds with my HT and an Arrow but would like to try the SSB satellites as they appear very fun on your videos etc... I'm considering the fixed 15* route as well since it would make life a bit easier with a basic rotor and easy wiring. I'm trying to find the elevation range that a 15* fixed will function at. Love your 847 :-) Thanks!
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This satellite is ancient! Batteries died in the early 80s and the thing's still going on the ancient solar panels. Simply awesome. Fantastic video, and thanks for posting.
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thought of one other question - what elevation ranges are you able to work with your fixed antenna? I'm assuming it is fixed at the horizon, not elevated at all...?
Qstick333 1 year ago
@Qstick333
Yes, they are fixed on horizon. It's real good from 0 to 25 degrees, then there are spots from 25 to 40 that are OK. Above that not so good. Shorter yagis would be better in this situation, say 5-8 elements, because the takeoff angle is higher. Many people use short yagis fixed at 15 degrees with good results. That might be a future project here.
NZ3M 1 year ago
Great videos. Curious how you control your antennas to track the satellite?
Qstick333 1 year ago
@Qstick333
I use Orbitron software that tells me where to point, and move them with my rotor controller. You see me reaching above often, I am moving antennas. There are programs that interface with the rotor controller to do it automatically.
NZ3M 1 year ago
@NZ3M
Your rotor also controls elevation? That's interesting. I'd love to see a video of how that system works. Does the control box let you preprogram the route of the satellite or do you do it manually? Thanks!
Qstick333 1 year ago
@Qstick333
No, I don't have an elevation rotator, I'm just using my long boom antennas. I lose satellites that are overhead. Some rotors do have the capability to interface with the software and track on it's own, but I never got that serious, just have fun with my VHF weak signal antennas.
NZ3M 1 year ago