6-Meters


2 - Meters

145.430


146.850

 

220

440

 900 Mhz


 D-STAR 
D-STAR repeater

DMR 

440.575 Mhz DMR repeater




 
 
 
 
 


  OPERATIONAL STATUS: ON THE AIR! 
PLEASE NOTE: THE 146.625 REPEATER MAY OR MAY NOT HAVE  A 118.8 Hz DECODE TONE ACTIVE. IF YOU ARE UNABLE TO ACCESS THE REPEATER, PLEASE VERIFY THAT YOU ARE TRANSMITTING A 118.8 Hz ENCODE TONE. IF THE REPEATER HAS THE TONE DECODE ACTIVE, IT WILL BE RETURNED TO CARRIER SQUELCH AS SOON AS POSSIBLE.  73 de Tim WB4GBI

The 146.625 (-) (optional tone: 118.8 Hz) repeater is located on Chilhowee Mountain in Blount County, TN.  near a community known as the "Top of the World".  This is a very beautiful place in east Tennessee... but just as you might imagine, it is in a very rugged area, where access to this area is not very easy.  The troubles are worth it though... as the high elevation of the terrain makes for a perfect Repeater site!
 


The image to the left is the actual cabinet with the repeater installed... while the photo  on the right is the top of main support structure of this facility.  It holds both the 146.625 repeater antenna... as well as several other antennas for repeaters outside the amateur service.
 
 
 

     This photo is of the repeater rear. The 100 watt power amplifier heat sink is visible below the back panel. Above the back panel is the UHF remote control receiver and the DTMF decoder for remote control.  
 
 

There are several other commercial and amateur service repeaters located at this site.
 

146.625 tower top


 This repeater is another of many relay repeaters for SKYWARN, where weather spotters can contact the National Weather Service, directly, during inclement weather, to officially log in weather observations.  It is also used by many other amateur groups for emergency communications, nets and general club uses.
 

     A brief history of 146.625...
    This machine utilizes a Factory-Stock 132-150Mhz GE Mastr II Repeater combo... which was acquired back in 1982. This repeater station was originally on 145.47.  It went on the air as 146.625 in 1988, on Sharp's Ridge in North Knoxville.  Later, it was moved to Chilhowee Mountain (the original 146.940 site).  It remained there until that site was abandoned in 2004.  This forced the repeater's move to it's present location near the Top of the World Community in Blount County. A new antenna and feed line was installed on October 28th, 2014. 

EQUIPMENT LIST FOR THE 146.625 REPEATER: 

  • GE Mastr II Factory-Stock 132-150Mhz repeater 
  • Sinclair six-cavity duplexer 
  • 1/2" foam heliax 
  • Sinclair SD-224 4-dipole antenna, located @ approx.140 feet at the top of the tower)
  • "Autocode" CW ID unit
  • GE MASTR II Auxiliary receiver and Broadcast Tools DTD-16 DTMF decoder for remote control
Below is the VIEW from this repeater site... so you can see why this repeater site is such a great one....


Click on the photo for a more GRAND size to view!




6-Meters


2 - Meters
145.430 repeater



146.850

 

440

900 Mhz

  DMR 
440.575 Mhz DMR repeater

D-STAR
D-STAR repeater

 



 
 


OPERATIONAL STATUS:  TEMPORARILY OFF THE AIR

          This is the 224.340 repeater... located at it's newest home on Sharp's Ridge, near Broadway in North Knoxville.  The antenna is on the WJXB-FM Tower (B-97.5), which also holds the antenna for WMAK-TV (Digital). For you "Old Timers", it's the old "Channel 26" tower on Sharp's Ridge... the first REALLY TALL tower in Knoxville!

 On the left you will see that in the top of the repeater cabinet there is another machine.  This is W4KEV's 6-Meter Repeater, on 53.250.  (W4KEV - formerly KB5HFM - is the chief Engineer of the Commercial Broadcast Radio Station there.  It is thanks to him, and fellow Engineer W4ZTV, that the 224.340 machine has found such a great new home!) 

Below that is the 224.340 machine, and you can see the duplexer in the very bottom of the cabinet.

A brief history of 224.340...
     This machine went into service in late 1997.  This is the only 220-band repeater in the system.
     The transceiver was bought from Jim Sayne (K4IBW) and a controller was scavanged from an out of service machine to complete the package  This machine only features a maximum output power of 20 watts.  It was originally at the 146.625 and 53.15 site, but made it's way to it's current location on Sharp's Ridge in late 2007.
 
 

EQUIPMENT LIST FOR THE 224.340 REPEATER: 

  • Motorola "Micor" series receiver - modified for 220 from VHF
  • Motorola "Micor" series exciter (output 100 milliwatts) Modified for 220 from VHF
  • 25 watt PA chip, installed inside the transceiver
  • Micro Computer Concepts RC-1000 control panel
  • WACOM four cavity 220Mhz duplexer 
  • 1/2" foam heliax 
  • 4-element antenna (Similar to a DB-224) on the tower