Satellites and ISS

ToddDubya

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I thought I'd start a dedicated ISS/Satellite thread instead of mucking up the "What Did You Do in the Shack Today" thread.

I got my Arrow antenna today, the 146/437-10. I started putting it together and the 70cm elements are very close in length. So I had to measure them with the end caps off, and of course one pair that should be 5-3/8" is 5-1/2" on one side and 5-1/4" on the other. It averages out, and I'm not sure how much of a difference it'll really make, so I'm leaving it alone.

With that sorted, I put a couple wraps of colored electrical tape on each of the elements and the boom so it's easier to assemble in the future.

In case anyone gets one of these, something to note is that the first director on the 70cm side, which is normally the longest of the directors, is not the longest. If I hadn't had to measure them all I would have just assembled it longest to shortest. But the first one is 5-1/4", then a few 5-3/8", then 5". If I had to guess it's because it's so close to the driven element.

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Now that I've made an investment in this, I think I'll keep working on the ISS and then try for some satellites.

Last night after work I took a walk over to a nearby nature area where there's a hill with a pretty decent view of the sky. This picture doesn't even do it justice. You're pretty much above everything around in the foreground. It should make for a good place to get the most out of passes. I'm sure you're not supposed to be playing radio there, and I don't think they mow it except for hay, so it's going to be a short season there, with a lot of ticks. But there's a community garden area there as well that might be good enough, especially for anything to the south. Until some Karen complains.

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In the meantime, I just popped out in the yard with an HT connected to the yagi to listen and it's way better than the vertical on the house. I could hear people pretty much the whole pass. Eventually I lost it to doppler and houses, but that was a successful first test.

Next I need to get the FT-817/818s programmed and figure out how I'm going to manage all of that. This feels like the kind of thing where an assistant and stenographer would come in handy.
 
My friend sent me this guide. I tried to find it on their website, but all I could find was a guide of FM frequencies. The attached guide has FM, SSB, CW, Packet, whatever. I just learned we can attach files [smile]. For all I know it's always been a feature.

Before I get too far into this I need to figure out logging, too.
 

Attachments

Pretty sure I got through. I heard a couple stations, and entered a contact in QRZ.

Worked pretty well using the split channels.

I might try putting those frequencies into my Yaesu 2800 with the tree mounted antenna for transmit, and put my ground plane back into use with the Baofeng for receive. That will give a little more juice on the send side, so maybe I can make a decent contact.
 
I just went out back to try and listen to the ISS. The front is much clearer, but my POS neighbor was on his porch and I didn't want him even looking at me. After about 5 minutes I thought maybe I was late because I was getting it very weak to the south east. As I turned to go back in the house I heard it crystal clear to the SW. Turned out I was early and I must have been chasing reflections off a neighbor's house or the back fence. Then I was able to listen to most of the pass.
 


 
On a whim, I was at Green Hill Park in Worcester today. Pretty high up above the city, and the landscape drops away in all directions. Figured I'd put the Baofeng on scan. Sure enough, it picked up on the ISS channels! Didn't catch much, because I didn't want to cause a scene with all the people around, but it was the same sort of chatter as before when I got reception.
 
Trying to turn off squelch for the ISS channels. Anyone know where to do that?
It looks like I can do that for the whole radio, but not by channel. Is that true, or am I missing it?
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Also, what is "Dual Watch" and "Dual Watch TX Priority"?

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I listened at the 8:40 pass and I picked it up really clear pretty much horizon to horizon. I just stood on the front porch for most of it. I used the FT-818 this time and I don't know if it just hears better or I just had a better shot, but it sounded really good.

I tried to catch AO-91 just now but I heard nothing. It's a shame because it passes right overhead.
 
My buddy kept telling me AO-91 was out of service, but N2YO said it wasn't. I guess technically it's still up there but the batteries are done and only sometimes works when it's in the sun.
 
Trying to turn off squelch for the ISS channels. Anyone know where to do that?
It looks like I can do that for the whole radio, but not by channel. Is that true, or am I missing it?
View attachment 980140




Also, what is "Dual Watch" and "Dual Watch TX Priority"?

View attachment 980139

Yes only squelch for the full radio on those UV variants you can hold the MONI button to open the squelch if that one has the side button. Dual watch will set a channel in each side A+B and scan between them, I think the DW TX priority will be the side you will TX on in DW mode.
 
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