For a change of pace, I thought that I would try making contacts through SO-50. SO-50 is another FM repeater satellite and until the commissioning of Fox-1 as AO-85 the only FM repeater still operational.
Unlike AO-85, the uplink for SO-50 is 2M and the downlink is 70cm. Here is my channel configuration that I’m using for my baofeng. Here’s what I’ve learned since my last attempt.
- Open the squelch:
- I was debating whether or not I would leave the squelch open in my last post. I’ve deciding now that I will.
- Mount the antenna on a tripod:
- I’d seen about as many people with mounts as just aiming the antenna by hand. Tracking a satellite is hard, let alone managing two radios, a recorder, a time piece, directions …. I could go on.
- I’ll be mounting mine on a camera tripod from now on. I found a piece of aluminum square stock, then I drilled a 5/8″ hole through it and then a drilled and tapped a 1/4-20″ through the side. Finally, I cut it off (about 2″ long) and drilled and tapped a 1/4-20 hole in the bottom. I find that I need a small piece of flat stock about 3 1/2″ long to put between the tripod and aluminum block. Clear as mud right?
- I cut a piece of 1/2″ copper pipe (that conveniently fits up the south end of a north bound arrow antenna). Insert it in the south end, then slide through the 5/8″ hole and tighten the thumbscrew to keep it in place. When I do a day pass and finish up a few other things, I’ll dedicate a post to the subject, with pretty high quality pictures.
- I seriously need a way to orient angles
- Like, I set of protractors or something. Its very frustrating trying to track a satellite with no clue where the angles are.
- Higher qualities recordings are only good if they’re complete:
- Oops. I noticed that my last recording wasn’t all that high quality so I tried to improve it. It worked, but I alo managed to get skips in the recording. I guess my droid 2 is getting old. Let’s see if I can’t find a decent dedicated recorder somewhere in addition to those protractors.
- Relax, it’s late night pass and there’s only a few people on:
- No, seriously. I did an 11pm CDT pass and there were only 3 people trying to trade. Chill people. I said they were going fast and furious but for a late night pass it didn’t hold true.
Anyway, that’s what I’ve learned from my last two passes. Also, congrats to this young lady on her first contact. I also made my first contact last night, and yes, I was pumped.
Thanks for posting the spreadsheet but I have a few questions.
1) When programming my UV-5R in CHIRP, I did not find rToneFreq or cToneFreq. What should it be in CHIRP.
2) Does SO-50 need an ARM signal hence the channel 29 in your listing.
Thanks for your time.
Tom
Hi Tom!
You should be able to use Chirp’s import feature on that CSV file. Chose File, then Import, then change the filter from .chirp to .csv.
Yes, SO-50 has a timer on the repeater. I believe this keeps the battery draw down when the repeater is not being used. You can arm SO-50 when it comes over the horizon by transmitting on the ARM channel. More info here: http://www.pe0sat.vgnet.nl/satellite/amateur-radio-satellites/so-50/