The N8IG Repeater system is a Kenwood NXR-710K Repeater setup in Analog Mode. The repeater was purchased by the Union County EMA and put into service on March 10, 2019.
The controller, voter, and the GE MASTR UHF receivers from the old repeater are setup with the Kenwood Repeater
The repeater is located at the
Marvin C. Gilbert EMA Operations Building - EMA Station 720
20900 Northwest Parkway.
Marysville, OH 43040
Google Maps Link:
Recieve site information:
The (new 11/2014) primary link receiver is now a Kenwood TM-V-7A crossband radio fed by a 7 dBd Hustler G7-144 receive antenna 175' AGL on top of a centrally located water tower which feeds an Advanced Receiver Research (Ar²) P144VDG 0.5 dB low noise pre-amplifier about 50' below the antenna. A mobile VHF duplexer provides VHF front end selectivity from a 3.4 kW FM Broadcast site just three miles away. The signal is fed via another 230' of RF-400 (0.4") cable to the ground mounted cross-band radio. The signal is UHF linked back to the main Repeater/transmitter site via the same VHF/UHF signal combiner/splitters and 230' + a separate 50' of RF-400 cable (= ~9 dB total loss @ UHF) to the horizontal UHF 5 element Yagi aimed south. This central and high VHF receive site and low noise VHF amplifier (with enough gain to overcome the small cable's signal losses) gives complete Union County coverage for mobiles and ~90% coverage for handhelds. Mobile coverage into Marion, Urbana, Hilliard, Delaware and beyond have been consistently reported.
The Bellefontaine recieve site uses a 2 meter Hustler G6-144 recieve antenna with 6 dBd of gain. The signal is UHF linked back to the main repeater/transmitter site using a UHF yagi antenna. Both antennas are fed with seperate runs of RF 400 feed line.
|3+(1-9)||Retrieve MEssage Position 1-9|
|4 *||Record Mail|
|4 **||Erase last Message|
|4 ***||Record and playback, useful for hearing yourself on the repeater|
|5 followed by keys||Repeats Key pressed|
Below are photos of the Kenwood N8IG repeater system.