Articles with tag “Packet Radio”

APRS SATCOM base antennas

Years ago, Bob Bruninga, WB4APR, talked about a "good" antenna for APRS SATCOM applications.  It was a 19-inch vertical antenna that would function on both the 2m and 70cm bands, and had lobes that were up around the 30-degree mark.  Looking for information on that antenna last night I found …

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Apple Orchard Mountain in July 2017

Success! That's the word I'm using to describe my latest battle up a summit. It wasn't easy and it wasn't without some failure, but I'm willing to give this trip a grade of B. Luckily I had some help...

Stats

  • When: 2017-07-15 from 14:00Z to 20:00Z
  • Where: Apple …

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What's that noise on 20m?

Yesterday I was tuning around 20 meters and heard packet!  Wow, it's been years since I've used packet (outside of APRS which is a different animal when compared to this).  Turns out I stumbled onto the Net105 frequency with all of their users.  It's quite busy there and I've seen …

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Automatically Controlled Digital Stations on HF

According to Part 97 of the FCC rules (specifically §97.221 Automatically controlled digital station) automatically controlled digital stations have 134.5kHz of space to work in on the the HF bands (10 meters through 80 meters).  Breaking this bandwidth up into 500 Hz channels* we see that we have …

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XFBB and NTS Message Routing

NTS traffic is addressed very simply:@NTS.  So if I was going to send an NTS message to the ARRL I would use 06111@NTSCT.  Simple, right?  And I'm assuming that most BBSs would allow you to route traffic based on the @NTSportion of the address but not FBB.  FBB …

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BBS Forwarding over HF

After months of gathering pieces and trying to get time to tinker I think I've finally got everything figured out with connecting my PTC-II modem to my XFBB BBS so I can communicate over HF to distant lands.  Right now I'm only setup to guard and call on a single …

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Things to do: NTS and NTSd list

There needs to be a comprehensive list of all NTS nets and NTSD stations. This list needs to be in text format and a "pretty" graphical format and should be available on the ARRL website under NTS.

This would make it easier for those of us on the road to …

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Notification to ARES groups

I've been thinking a lot about volunteer responders in the scheme of emergency management. Many of these groups lack a robust communications system without which you are going to be stuck in the mud.

So what about ARES groups. From the emergency managers point of view ARES is a communications …

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Humor Posts via Packet

Every day or so my local packet BBS receives a humor post from W1GMF in Massachusetts. I really enjoy the jokes but I'm really impressed by the path the message has to take to make it to Yorktown, Virginia. The path looks like: KR4MA N9NDS KB0OFD N0KFQ KB8DM N4JOA N9ZZK …

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The ARRL Recognizes QSOs via the ISS

Ten days ago I reported on my blog that the ARRL wouldn't recognize QSOs taking place via the ISS for DXCC or WAS. I got the response I was looking for today from Norm Fusaro, W3IZ. Thank you ARRL for letting this happen. Now I have QSOs to upload to …

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