The number of registered DMR users is still growing rapidly. Interest in DMR is definitely not waning. In fact, I’d love to know just how many folks bought themselves their first DMR radio (or were gifted with one) for Christmas. It wouldn’t surprise me to see a surge in the number of new registrations for […]
Well, it’s been a quiet week in Lake Wobegon… wait, we aren’t in Lake Wobegon, are we? Nope. And there is quite a lot going on around here lately. The tower replacement in Auburn is progressing nicely: they’re stackin’ it high so the signals can fly. While those guys are going up… up… up… I’ve […]
One of those jobs that takes 10 minutes to do, but a lot of time overall (and a lot of effort) moving tools and equipment around. Terminated this 550′ spool of RFS LCF158 corrugated coaxial feedline with an RFS NF-LCF158-D01 female N-type connector yesterday afternoon. While it was one of those fun projects, it was […]
After about a year of helping a client with our part of the planning, preparations, and procurement of antennas, feedlines, hardware, etc. for the “Swap and Drop” replacement of the approximately 450′ Auburn communications tower, it’s about to start going up. The tower sections were delivered this morning, but due to rain in the forecast […]
The Generac automatic backup generator system had failed at a client’s transmitter site. It would not fire up and transfer to backup power if the AC mains failed. I diagnosed it down to the 12 VDC transfer control relay, which I replaced. When I left the site, the system was back to operating exactly as […]
This video is a demonstration showing the RF Power and VSWR Monitor & Alarm System I recently designed and built. The front panel and chassis used to be a Glenayre Power Monitor panel, but after being completely gutted, retrofitted, painted, etc., it is now a custom Arduino-based build. I finished creating and putting the front […]
These two short videos show the testing of the v2_3 code running on the Arduino-based power and SWR monitoring system I’m developing and building for a client’s Quintron and Glenayre paging systems (but the system can be added to virtually ANY RF transmitter — it’s just a matter of having the correct bidirectional RF power […]
I often get asked “Do I really need to spend the money to purchase an RF isolator and have it tuned for installation on my repeater or transmitter? And, if so, why?” In this video, I demonstrate (and test) a db Products (Decibel Products) DB4613-1A isolator on a 100 Watt paging system, showing how the […]
Much to the surprise of many, the paging industry is alive, well, and still quite popular. To wit, I finished building, wiring, and aligning this Quintron system over the course of the past few days, which will be installed in the place of an existing system. The existing system is working, but it has been […]
Here’s tipping my hat to the LaGrange, GA Amateur Radio Club for hosting a great hamfest yesterday (October 27, 2018.) It might not be the largest hamfest around, but it is very much enjoyed by locals and even hams to travel a pretty good distance to join in. I’m not sure whether it was the […]