After investing about 30 hours of time to troubleshoot problems with a Vertex VXR-7000 recently, I discovered that the software for programming the radio is to blame for a host of problems. If you are using these radios for amateur […] ↓ Read the rest of this entry…
I’ve setup a couple of Vertex VXR-7000 radios for use on AllStar app_rpt. What follows are my detailed notes of that configuration in the hope it will help anyone else. These are excellent radios but the connection to them is […] ↓ Read the rest of this entry…
While working on interfacing the UHF VXR-7000 radio to the URI, I realized that I needed to reprogram the transmitter. It had previously been programmed to transmit a CTCSS of 100.0 Hz. That’s fine but I want app_rpt to handle […] ↓ 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…
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…
A couple of macros I’ve been working on might interest a few people. They aren’t meant to be complete commands although you can execute them and see how they work. I intend them to become part of more complete and […] ↓ Read the rest of this entry…