N4DBM hosts and maintains several FM analog voice repeaters in the Elizabethtown, NC area. The repeaters are open to ALL licensed amateur radio operators and are monitored by local hams. They are stand-alone alternatives to DMR, P25 and linked systems in the area, giving operators the flexibility to communicate locally.
146.985 (-600 KHz offset) PL 162.2 - Elizabethtown, NC
Motorola MTR2000 repeater @ 40W output
Wacom WP-643 six-cavity band pass, band reject duplexer
CommScope DB224 antenna top mounted at 400 feet AGL
CommScope FXL-780 (7/8" hardline)
Remarks - The forward power out of the duplexer is about 25 watts. The repeater covers (on average) 30 miles in all directions with a typical mobile setup and all of Elizabethtown town limits with a portable. Nets are held each Thursday night at 19:00. Please feel free to join in. The repeater is on emergency power (battery and generator) providing uninterrupted service.
443.825 MHz (+5 MHz offset) PL 118.8 - Elizabethtown, NC
Motorola MTR2000 repeater @ 100W output
Wacom WP-678-R1 band pass, band reject duplexer
Angle-linear low-noise preamplifier on the RX
CommScope DB420 top mounted at 305 feet AGL
Andrew LDF5-50A 7/8" Heliax transmission cable
Remarks: Excellent coverage throughout Bladen County and beyond. With 9 dBd of antenna gain, the repeater actually peforms as well as the 2-meter (146.985) repeater. An average mobile setup can work the machine dependable up to 30 miles out in all directions. Like the 2-meter repeater, it is monitored regularly by locals in the area. Please feel free to give a call out any time.
443.075 MHz (+5 MHz offset) PL 118.8 - Clinton, NC
Motorola MTR2000 repeater @ 100W output
RX antenna is a CommScope DB420 @ 600 feet AGL (top mounted)
TX antenna is a CommScope DB636 @ 450 feet AGL (side mounted, favoring NNW)
RX feed-line is 1-5/8" Heliax, TX feed-line is 7/8" Heliax
RX line is shared with another repeater with an ARR GaAsFET preamplifier and pass filter
Remarks: Covers all of Clinton, NC with a portable and all of Sampton County, NC with a mobile. Mobile coverage extends 30+ miles with an average mobile setup. Generator and battery power is provided, giving uninterrupted service.
444.575 MHz (+5 MHz offset) PL 118.8 - Lumberton, NC
Motorola MTR2000 repeater at 40W output
Celwave 6-cavity band-pass, band-reject duplexer
CommScope DB408 @ 500 feet AGL favoring WSW
Andrew LDF5-50A (7/8" Heliax) transmission line
Remarks: Good coverage in the mobile around Fayetteville, Laurinburg and Lumberton. Antenna pattern has a null back through the tower toward Grays Creek, Ammon, Roseboro. Overall, 30+ miles in most directions (except through the tower to the ENE). Generator power is provided at the site.
Please direct any questions or comments on these repeaters to derekmcintyre@intrstar.net