The Gold Hill, AL 442.175 MHz DMR Repeater got a few additions and performance improvements today. For starters, I added a combination of an EMR 5-Cavity UHF Preselector and an EMR Preamplifier to the receiver side of things. By doing so, I boosted the receive sensitivity of the repeater by 14.57 dB and at the […]
Looking Forward To Watching This Thing Go Up
Gold Hill 442.175 MHz DMR Repeater Back Online After MOSFET Replacement
The Gold Hill, AL 442.175(+) KK4ICE DMR Repeater went back online a little around sunrise on Saturday, June 9th, 2018. Following replacement of the burned-out MOSFET power amplifier chip, the repeater was reinstalled with an external power amplifier connected in order to decrease the load on (and the heat inside) the DR-1X repeater’s transmitter radio. […]
Gold Hill 442.175 Repeater Down Temporarily and East Central AL DMR Talkgroup Update
Gold Hill, AL 442.175 Repeater down for a few days due to PA failure Apparently things over on timeslot 1 were really, really busy this past Saturday night. The dual-pack MOSFET final transistor in the transmit radio in the Yaesu DR-1X repeater… well, we “let the smoke out of it.” A replacement transistor is on […]
STM32_DVM to Yaesu Fusion DR-1X Interface Instructions and Wiring Diagram
If you are interested in hooking up one of Scott Zimmerman’s incredible STM32_DVM multi-digital mode controllers to a Yaesu Fusion DR-1 or DR-1X repeater, then I have produced a webpage/article and information which was written for you; moreover, if you want to create an interface that is sure to work well and adds several other […]
Lots of Real-Time Status Info on KK4ICE 442.175 DMR Repeater Viewable Online
DMR Changeover Complete On 442.175(+) Gold Hill, AL KK4ICE Repeater
As of 5/24/18 the 442.175(+) Gold Hill machine has been changed to full-time DMR operation. It is working fantastic and a bunch of us are enjoying having nice, clear DMR QSO’s using handheld radios to actually go through the repeater direct from distances we were not able to when it was running as an analog […]
WA4QHN Repeater Is Now Dual-Mode Fusion C4FM and Analog
I recently updated the radio firmware and the DSP firmware to the latest available in a Fusion DR-1 repeater owned by WA4QHN, and installed it in place of the analog Mastr II repeater. WA4QHN 444.100 Salem, AL Repeater Running in Stand-Alone, Dual (auto) analog or digital operating mode As of May 14, 2018, the 444.100(+) […]
Hacking an Altec-Lansing ATP3 Subwoofer for Stand-Alone Operation
I realize this isn’t directly ham radio-related. Well, actually it sort of is, because this project involves a subwoofer which is now part of the system I use for producing amateur radio-related instructional and informational videos, for monitoring DMR radio activity, and other fun stuff. Altec Lansing ATP3 subwoofer purchased at a thrift store but […]
Enjoying the World of DMR
With a little help from a fellow ham, I’ve finally ventured into the world of DMR digital amateur radio. That’s one of the wonderful things about this hobby: there’s almost always a fellow ham who has knowledge to share in a particular area (and has already discovered and resolved many of the annoying technical issues.) […]