Yes, Band Plans Do Matter

There was an interesting exchange on the AMSAT-BB email list last week. Dave KB5WIA noted a strange signal on the AO-51 satellite: I just thought I’d relay a bit of QRM I observed on AO-51 on this morning’s 3/16/2011 1322z pass. The bird was totally quiet (just a nice carrier) for the first 5 minutes … Read more

Reading the Fine Print in Part 97

The ARRL just filed a Petition for Rule Making with the FCC concerning a specific modulation format called TDMA (Time Division Multiple Access). This issue has been simmering in the community of repeater operators but I suspect that most hams have no idea what this is about. It so happens that the land mobile industry … Read more

How Not to Elmer

Just this past week, I read the following exchange on one of the many ham radio email lists I subscribe to: Greetings Group, I have a rat shack universal DC adapter for my charger. It is rated at 12 volt 500 mA. On the bottom of the [radio brand] charger it specifies 450 mA. My … Read more

IWCE 2011

This week I attended the International Wireless Communications Expo, a wireless radio conference centered on land mobile radio (LMR). While not an amateur radio event, it was three fun days totally immersed in radio technology. Being a professional show, not a hobby event, the emphasis was on modern and emerging technology in the industry. No … Read more

Last Launch of Shuttle Discovery

STS-133 launched from the Kennedy Space Center on Feb24th. This is the 35th shuttle mission to the International Space Station and the last <sob> flight for Discovery. A few people were fortunate enough to see the launch from a passing commercial airliner. How lucky is that! – 73, Bob K0NR

This Spewed Out of the Internet #18

Lots of stuff spewing forth that needs to be reported. ARISSat-1 was supposed to be launched from the International Space Station this week, but it has been postponed. I have this vision of one of the astronauts rolling down the window on the station and chucking the satellite overboard. It probably doesn’t really work like … Read more