Displaying articles with tag "ham radio"

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Announcing "Ham Twits"

As I get more and more involved in Twitter I keep stumbling across Amateur Radio Operators with Twitter accounts. This is great, as I am very pleased to see some Ham Radio operators on a fairly "new" thing such as Twitter. However, one of Twitter's weak points is the lack of an ability to find like-minded people (such as fellow Hams) easily. Currently the best way to do it is to find someone who follows Hams on Twitter, slog through all the other hams' follower/following lists in an effort to find more Hams and follow the same procedure with any other Hams you find. Not the easiest thing to do.

Jennifer Leggio came up a really good concept for Security geeks to find each other on Twitter and FriendFeed called "Security Twits." In an effort to save my, and others, sanity on Twitter and being that imitation is the best form of flattery, I have co-opted the concept and started making a list of "Ham Twits" (As Jennifer pointed out, Twit is not a derogatory term, Twitter User == "Twit").

So, without further ado, I present: Ham Twits.

Please, pass this around. Also, if you are on Twitter and are a Ham Radio operator, please contact me so I can add you to the list. Share and Enjoy!

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SEEDS SSTV Captures

I've been playing less on AO-51/SO-50/AO-27 recently. I have been trying to add a bit of variety into my satellite habits by playing with the new cubesats that were launched a month or so ago. The main one that has been capturing my interest is SEEDS which contains a "Digi Talker" (aka a device that plays a recording on a loop) and does SSTV.

I'm not sure if I should post the audio recordings, as they seem to have a "secret code word" included to verify reception, but I can show the SSTV captures:

May 23rd, 2008:



May 23rd, 2008:




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N1WBV now QRV on 20 Meters

After upgrading to General in December, I could finally join the so-called "real hams" (whatever) on HF. However, since I live in a condo, the antenna situation somewhat limited me. After thinking most of the winter, and silently sneaking a ground plane outside to see if any of my neighbors would complain (they haven't so far, but we'll see what happens when more people venture outside during the spring), I decided to go all in and find a antenna that I could set up outside my office.

I knew that a permanent setup was out of the question. I also new that I was rather space limited. I also had a slight issue that I didn't know anything about antenna design. Thankfully I knew I was more or less out of luck until spring time as I didn't want to go around stringing up an antenna trudging through a foot of snow. So, I just read up and asked stupid questions in #hamradio and #amsat about what I should be doing. Thankfully, everyone in both channels were extremely helpful.

As April rolled around, I finally decided it was time. I had a few requirements:

  1. It had to be cheap
  2. It had to be easy to set up and break down
  3. It had to be simple
  4. It had to not require a tuner

Number 1 and Number 4 basically limited my options severely. I would have likely gotten hit if I approached my wife to buy another thing for my "static box" that cost more then a few dolalrs. So, after doing my research, the only option was to build a resonant dipole.

Last Saturday, my way-more-mechanically-inclined friend Steve, KB1MEH came down and we set out to build and antenna. Steve had some 18AWG wire at his house so all we needed at Home Depot and Radio shack was some PVC for the insulator and T connector, along with soldering supplies (Have I mentioned I never soldered before? I haven't.), and some PL-259 connectors. My only other investment was a cheap SWR meter for HF, courtesy of eBay.

The afternoon was spent cutting wire (the 18AWG wire was in a three conductor wire, so it had to be cut open and removed), soldering (Hey! This is easy!), drilling holes, and listening to the Scituate repeater.

Finally, around 4PM, the antenna was finished. We strung it up outside and plugged it into the SWR meter. Flipping my TS-120S (who hasn't transmitted once since I got the thing back in 1996) I saw a S4 noise floor. I wasn't sure if that was good or bad. Tuning around, I heard two or three signals way down in the noise, but nothing really intelligible. I now braced myself and hope my radio didn't explode. I IDed myself, calibrated the SWR meter, and checked the SWR. Hmmm... 1:1.4... Not Great, but well within tolerance. We'll fix it later. Tuning up and down the band there was nothing really on. I had heard the regulars on Scituate mention that the band was dead, but they were also talking about a Beirut station that were all trying to work. I nervously tuned to an open frequency and called a few CQs... No response. Uh Oh...

A few quick diagnostics yielded no amazing results. Disheartened, Steve and I took the antenna down and he left for the day. I hoped that the band was just bad today and that I had not screwed up the antenna somehow.

The next day I had a free afternoon, so I set up the antenna again. I was pleased to see only a S3 noise floor that day, so there may be a small bit of hope. I nervously tuned up and down the band and stumbled across a Georgia station, K4HYB, coming in S9+. Working some kind of contest, I waited him to exchange his information and hear him say:

"This is K4HYB, QRZ?"
I nervously keyed the mic... "November One Whiskey Bravo Victor"
"November One Question Mark, K4HYB"
Holy @#$^!!! Me? Did it work? "November One Whiskey Bravo Victor"
"November One... Again?"
"November One Whiskey Bravo Victor... November One Whiskey Bravo Victor"
"November One Whiskey Bravo Victor. You are 5 by 9 in Spartanville Georgia. Your location?"

I gave my location we parted ways. I was elated that the antenna worked. I quickly tuned around looking for someone, anyone to talk to. After some looking, I was rewarded with EA1JJ calling CQ North America. I worked him my first try rewarded another 5 by 9. After some waiting and trying, I also worked Ken, G0IBS in England and had a brief QSO. Unfortunately, he faded away into the ether, so I had to break it off.

So, the Antenna is a success. I still need to trim to see if I can get better SWR, but I can fold it up into a 1' round circle for storage, and can have it and functioning in about 5 minutes of work. It also cost me peanuts. So, if you want to work on 20m some day, drop me an e-mail!

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#amsat net on AO-51

With the 2nd repeater on AO-51 active, a repeater that is vastly underutilized I might add, a bunch of us in #amsat tried to all get on the 2nd repeater during one of the middle US passes.

We had moderate success, with KB2HSH, N3CRT, and KI4BKE getting on. Plus, we had Drew, KO4MA come on. Plus, with us using the 2nd repeater, we could actually talk! Amazing!

  • Mar 24th, 20:15EDT AO-51 pass (MP3, 10:28, 4.2MB)

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Courteous AO-51 Operation

I've typed up a fairly simple "do's and don'ts" guide to working AO-51. The guide focuses more on etiquette and operational guidelines rather then technical ideas, because there are already some excellent guides out there for the new user to read up on. That, and my technical setup leaves much to be desired.

This was more or less concieved one night in #amsat while discussing the operational issues on AO-51. The satellite is a very good, very easy satellite to get into, however, the more people jam on, the harder it is for people to use it. So, myself, John (KB2HSH), Charles (N3CRT), and Mark (KF6KYI) all tossed around ideas on what is more a less a good "code of conduct" for AO-51 operation.

  • The Courteous Ham's Guide to AO-51 PDF (35K)
  • The Courteous Ham's Guide to AO-51 DOC (38K)

Share and Enjoy!

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Some more passes

Two more satellite passes from Saturday. The 5:52 pass was very nice, as I chatted with VA4SF/HI, who was on the sunny shores of the Dominican Republic, which was my first Caribbean QSO.

  • Mar 1st, 17:52EST AO-51 pass (MP3, 8:02, 4.2MB)
  • Mar 1st, 19:30EST AO-51 pass (MP3, 6:30, 3.8MB)

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More Passes

Just some recordings from the past few days of AO-51. Not the best quality, as on the 22nd I had a snow plow clearing the parking lot around me, and on the 25th, it was a low pass to the west.

I'm coming to the conclusion that I can work lower elevations on eastern passes then I can on western passes, I assume it's because the main thing to the east of my QTH is the Atlantic, while to the west is the rest of the US. At least that's my current guess. I could just be talking out of my ass again.

  • Feb 22nd, 18:10EST AO-51 pass (MP3, 8:02, 3.2MB)
  • Feb 25th, 19:32EST AO-51 pass (MP3, 6:30, 2.6MB)

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Some more AO-51

Some more passes for your listening enjoyment:

  • Feb 9th, 07:12EST AO-51 pass (MP3, 8:16, 2.3MB)
  • Feb 9th, 08:54EST AO-51 pass (MP3, 6:54, 4.1MB)
  • Feb 9th, 18:25EST AO-51 pass (MP3, 10:51, 4.3MB)

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A break from AO-51

The AO-51 command crew has decided to shut off the 2 meter uplink and turned on the 1.2GHz uplink between Tuesdays and Thursdays during the month of February. This gives me a break from my addiction, which I guess is a good thing.

I've started to set up an online logbook. Which is a bit buggy and spartan, but a start. It's also handy to keep statistics. :)

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Sat-urday passes.

I had a nice blog entry describing all the saturday passes I worked, but Pants ate it. :|

Here are the recordings, I'll type them up later.

  • Feb 2nd, 08:30EST AO-51 pass (MP3, 5:31, 2.3MB)
  • Feb 2nd, 18:03EST AO-51 pass (MP3, 9:56, 4.1MB) (Warning, GSM noise due to my mobile phone)
  • Feb 2nd, 19:44EST AO-51 pass (MP3, 8:40, 3.6MB)

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