I built something like this for about 10% of what MFJ gets for theirs. I wanted something to “have my back” while I operate CW in the field, in case I miss any characters. It also boosts my confidence to […] ↓ Read the rest of this entry…
Most places in the US use 25 KHz channels on the 70cm band. I’m told that there are some places that use 20 KHz channels. There is good information on this at the Ham Radio School web site. Here is […] ↓ Read the rest of this entry…
I have several Zetron DTMF microphones. These are great little mics, used the heck out of them in the 1990’s. But today I can’t find any information on them. I really need a pinout for them so I can figure […] ↓ Read the rest of this entry…
I’ve removed all of the amateur radio equipment from Schweitzer Mountain for maintenance. My hope is that I’ll only have it offline for a week. Unfortunately the 145.230 transmitter has died. I measured no power out although I could hear […] ↓ Read the rest of this entry…
It seems that the 5.230 repeater has some sort of output power problem or maybe a bad antenna. The 444.075 repeater still functions normally. I plan a trip to the site for this week for work. At that time I’ll […] ↓ Read the rest of this entry…
I previously published a rant in which I described some needs for a logging recorder for radio communications. When I’ve purchased logging recorders of this type for public safety (use use them to record all phone, radio and operator positions) […] ↓ Read the rest of this entry…
Many have noticed the announcements playing on the STARnet nodes for the last few weeks. They’ve been successful in pointing people to the N7JCT web site to obtain information about the nodes. Several people have, as a result, emailed me […] ↓ Read the rest of this entry…
I’ve updated the N7JCT web site. Please check it for updates. Among the information that has recently been added: A list of local nodes with quick links to statistics and status of each. A list of control commands.
Information regarding my amateur radio activities has been in high demand lately. Not only have people asked for details about HF operations and my experimentation with Linux and Arduino, the most frequent requests have been for information about the Schweitzer […] ↓ Read the rest of this entry…
I apologize for the poor audio on the repeaters. One of our goals in this maintenance was to improve the audio but….it looks like I ended up in the wrong direction. Fortunately I know what the problem is, and it’s […] ↓ Read the rest of this entry…