2014 Tech study guide: satellite operation

In this section, one question was dropped and another about Keplerian elements was added...Dan As a Technician Class licensee, you can make contacts via amateur radio satellites. Any amateur whose license privileges allow them to transmit on the … [Continue reading]

2014 Tech study guide: public service and emergency operations

There were quite a few changes to this section. Questions were added about net operations, and the question about charging a battery connecting it in parallel with a vehicle battery was moved here...Dan One of the reasons amateur radio exists at … [Continue reading]

From my Twitter feed: SDR, spider coils, smart scope

Edward Vielmetti @vielmetti decoding radio digital modes without a radio, using WebSDR and fldigi /cc @kb6nu #hamr bit.ly/1o678qG Mike Comer @mike_n8wc @kb6nu great info! Back to radio after several years. Enjoy how the internet has enhanced … [Continue reading]

2014 Tech study guide: operating procedures

I'm going to lump several sections into this one post. Several questions were added and several updated, but nothing really major was changed....Dan FM Operation  Once they get their licenses, most Technicians purchase a VHF/UHF FM transceiver. … [Continue reading]

LC100 LC meter seems like a good deal

lc100

I recently bought an LC100A LC meter from eBay, like the one shown below. If you search eBay, you'll find them on sale anywhere from $20 to $40. Yesterday, I finally got around to playing with it a little. To power the device, you need to … [Continue reading]

2014 Tech study guide: Basic repair and testing

The addition of T7D12 is the only change to this section...Dan The most common test instrument in an amateur radio shack is the multimeter. Multimeters combine into a single instrument the functions of a voltmeter, ohmmeter, and ammeter. Voltage … [Continue reading]

2014 Tech study guide: RF interference, common transmitter and receiver problems

There were some substantial changes to this section. More questions were added about how to troubleshoot RF interference problems and a couple of questions were eliminated, including one about alternator whine...Dan Since Murphy’s Law—the law that … [Continue reading]

2014 Tech study guide: receivers, transmitters, and transceivers

This section was changed quite a bit. It used to include four block diagrams, but the question pool committee eliminated all of them. Bravo! Dan In the early days of radio, amateur radio operators used separate receivers and transmitter units. … [Continue reading]

Your ARRL Board of Directors at work

The ARRL Board held their annual winter meeting on January 17 - 18, and the meeting minutes are now published. Here are a few items that I thought were of interest: #6. Kay Craigie, N3KN, was elected to a third term as ARRL president. How do you … [Continue reading]

2014 Tech study guide: operating controls

Question T4B12 about the function of automatic gain control was added to this section...Dan To properly operate a transceiver, you need to know how to use the controls. Perhaps the most important transmitter control is microphone gain. If a … [Continue reading]