145.43 repeater


2 - Meters

146.85 repeater
147.150 repeater

220 Mhz

440 Mhz

900 Mhz

D-StarD-Star repeater

440.575 DMR

Acceptable Use Policy 




Yaesu DR-2X
System Fusion

TX/RX six cavity

Sinclair SD-224
200 ft above ground

Motorola "Spectra Tac"
UHF receiver
Broadcast Tools
DTD-16 DTMF decoder

WJBZ transmitter site
Bays Mountain
Knox/Sevier County, TN
Ground HAMSL: 1325 ft 
 Antenna HAAT: 478ft
Antenna HAG: 200 ft

WIRES-X node # 33731

As of January 26, 2019 145.43 is OFF THE AIR, DUE to a REPEATER FAILURE. Repeater is en route to Yaesu for Warranty Repairs.  Information will be posted here and on the WB4GBI repeater systems Facebook page when it returns.
The WB4GBI 145.43 repeater features
Yaesu "System Fusion" mode!
WB4GBI is Wires-X Room ID 33731

The WB4GBI 145.43 repeater is located at the WJBZ (Praise 96.3) transmitter site on Bays Mountain, at the Knox/Sevier County line.   

145.430 repeater

Here is a photo of the repeater system as it was installed. The repeater is at the top of the cabinet, then right below it is the control shelf, then the Motorola "Spectra-Tac" UHF control receiver. The Mirage power amplifier is just above the power supply. The repeater and control equipment is powered by the Motorola "Micor" series power supply, located in the middle of the cabinet. The six-cavity TX/RX duplexer is mounted in the bottom of the cabinet. There is an addtional cavity filter in line with the receive side, located in the rear of the cabinet. 


The SD-224 antenna is mounted on the top of the 200 ft tower, as seen above. 

A brief history of the 145.43 repeater:

In 1982, the 145.43 frequency was originally coordinated by SERA to WB4GBI. It operated at View Park Hill (the present 145.17 site) until Tim, WB4GBI moved to North Carolina in 1987. At that time, Tim returned the frequency to SERA for re-coordination. It was then operated by several different owners, with the last one being the Kerbela Amateur Radio Service (WB4YLC).  In September of 2015, the Kerbela Amateur Service returned the 145.43 repeater coordination to the person who coordinated it originally...WB4GBI! 

 Many thanks to WJBZ for their support of Amateur Radio!

Praise 96.3 WJBZ

The NEW WB4GBI 145.43 repeater  features the Yaesu "System Fusion" digital mode! A NEW Yeasu DRX-2 Fusion repeater was acquired on 12/27/2017.  The repeater, antennae, feed lines, and cabinet with duplexer was installed on 4/13/2018. 


Some photos from installation of the 145.43 repeater: 

The antenna ready for installation "rigging" the tower
  The new Sinclair SD-224, ready to         Kerry Klimecki, Tower Services,  "Rigging"                                     install on the tower                                            the tower for the antenna  installation


Preparing the 1 1/4" line for a connector              A close up of the UHF repeater control antenna