June 16th 2025 #256 - Coax and Microphone Projects | W3GMS Workbench
Manage episode 489506980 series 3669859
Host: Greg (W3DIB)
Theme: Field Day Prep, Coax Projects, and Microphone Cable Woes
š§ Technical Questions
Q1: Straightening Coiled Mic Cables (N3RBN)
Paul asked if thereās a reliable way to straighten the coiled section of an RJ-style microphone cable to reterminate it. Responses included:
- Chuck (NA3CW) and others suggested buying a cheap knockoff mic just for the cable, then rewiring.
- Scott (W3KZG) seconded the ideaāsome knockoffs fit well and donāt even require soldering.
Q2: Remote Relay vs. Direct Coax Run (KC3SQI)
Wayne asked if itās better to run a home-run coax for a 2m antenna or share a remote relay rated only for 6m.
- Ron (WA3VEE) and Jim (KC3RFG) strongly recommended running dedicated coax to minimize signal loss and prevent mismatches.
- John (WA3KFT) shared his experience running 14 coax lines with high-quality switches, warning about specs and reliability.
- Consensus: fewer interconnections, always better.
š” Roundtable Highlights
- Field Day Fever:
Many ops are prepping hardātesting coax, installing connectors, tuning antennas. Chuck (NA3CW) and Joe (W3GMS) led a coax connector demo that was widely praised. - APRS Success:
John (KC3WWC) had a blast during APRS Thursdayāreceived 174 messages from across the globe in 12 hours! - First 6m Contacts!
Jim (KC3RFG) made his first contacts on 6 meters thanks to some recent solar activityārepaired his mag-mount antenna with a solder rework. - Project Progress:
- Keith (KB3ILS) dove deep into bandpass filter design, winding toroids and using a NanoVNA and oscilloscope.
- Scott (W3KZG) is renovating a trailer to double as a field day camper and ATV hauler.
- Wayne (KC3SQI) poured concrete for his new tilt-over mast.
- Ron (WA3VEE) helped tune the 40m dipole for Field Day, now resonant at 7.150 MHz.
- Jon (WA3KFT) shared a robust setup with 14 coax switches and specialty tools from DX Engineering.
š¬ Community Notes
- Health Check-Ins:
The net closed with updates and well-wishes for an operator dealing with a medical emergencyāseveral ops shared hospital updates and encouraging words. - Fatherās Day Recaps:
Several shared heartfelt stories of family timeāsteak dinners, grandkid babysitting, and āgiftsā like temporary pet duty.
6 episodes