I wasn’t sure when I’d be able to do so due to increased physical limitations lately, but with some assistance from a wonderful friend (“Thank you, KD4BO”) I was able to put the temporary replacement DMR repeater setup online at the Gold Hill, AL site yesterday (July 24, 2018.) This is an interesting repeater setup […]
Category: Workbench
SMD Reflow Oven Build, Testing, and A Few Lessons Learned
KE4COL Repeater Not Quite Ready To Go Back Into Service
Update on KE4COL Repeater and Other Little News Tidbits
Just a little update on what’s happening with the KE4COL 145.230 Gold HIll repeater repairs/testing, and a few other cool things going on lately. KE4COL Mastr II UHF Appears Good To Go Back Into Service The 145.230(+)123.0 VHF Mastr II continues to behave well here in the lab since I serviced and realigned it […]
Troubleshooting & Aligning KE4COL 145.230 Mastr II Repeater
Last Friday, we pulled KE4COL’s Mastr II 2-Meter repeater out of service due to some intermittent “crashes” on COS drops, strange noises, etc. which had been occurring for a while. I brought it here to the lab and finally got around to going through it today. I found and addressed a few issues and it […]
Gold Hill DMR Repeater – Further Additions and Improvements
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 […]
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 […]
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 […]