6-Meters


2 - Meters

145.430


146.850

 

220

440

900 Mhz

 

D-STAR

D-STAR repeater

DMR
440.575 Mhz DMR repeater

Acceptable Use Policy



 

Repeater Statistics:
Location:
  Cross Mountain
  Anderson 
     County, TN
Ground Elevation:
   3530 Feet
Antenna Height Above Ground (Approx):
  100 Feet
Antenna Height Above Average Terrain:
  2001 Feet
Frequency:
  145.470
  (-) 600KHz offset
  Optional CTCSS tone:
   118.8 Hz

It has a tendancy to
get very cold and lonely on top of a mountain in 
East Tennessee. 

This is
evidenced in a photo of 
145.470 repeater antenna...
on this remote mountaintop.

The 145.470 (-) (optional decode tone: 118.8 Hz) repeater is located NORTH 
of the Knoxville area - high atop Cross Mountain!


Current Status:  ON THE AIR!!  

PLEASE NOTE: THE 145.470 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

When this repeater was first put into service at this location, it was hoped that it would cover an area just to the north of Knoxville to up near the state line... however... that was not to be the case.  As it turns out, we were pleasantly surprised that this machine has far exceeded those boundaries!
 

   In reality... this repeater covers a wide and rugged area of the Southeastern United States!  Many regular users of this machine do so routinely from Tennessee, North Carolina and Kentucky!
 

   Although many East Tennessee hams use this machine every day, we have been known to make contacts in Virginia... Georgia and even parts of Ohio! 


   

 

New 47 antenna
To the left, is a shot of the rear of the cabinet, that shows some of the many connections. 

To the right, you will see a front shot of the cabinet that houses this machine.

(Notice the exciter  and receiver is closed, and outside of view).

 Some of the equipment that makes up this machine includes:

  • General Electric "Mastr II" VHF repeater with internal controller 
  • Autocode  CW ID unit
  • Celwave (Phelps Dodge) PD-497 6-cavity pass/reject duplexers
  • Sinclair SD-224 4 element folded dipole VHF antenna
  • 1/2 inch Andrew "heliax" transmission line
  • General Electric "Mastr II" UHF Auxiliary receiver for remote control 
  • Broadcast Tools DTD-16 DTMF decoder for remote control


   Since this repeater has been on the air, it has developed quite a following!   So much so, that a separate website has been formed.  They call    themselves the "470 Amateur Radio Group." Here's the link to their site:
http://amateurradiogroup470.webs.com/  

Special Thanks to Rick, N4JTQ, for creating and managing this web site!

Check out the 47 repeater group out on Facebook!

Find the 47 repeater group on Facebook!

Join us every Thursday Evening at 7:30 PM (except holidays) for the 470 amateur radio group net! Trivia, topics, swap and shop, and much more!



A brief history of the 145.470 Repeater...


   The 145.47 was Tim's first repeater, which went on the air for the first time on September 17,  1981. The picture you see here is the actual 145.47 repeater when it was located at Tim's home, before it went to its first location atop View Park Hill (the present 145.17 site) in November 1981.  The equipment you see is General Electric "Progress Line" tube -type equipment. The repeater was a "prog-line" receiver and transmitter with a home-brew control board and diode-matrix ID'er. From View Park,  it has been located on House Mountain,  Bluff Mountain (near where 146.94 is now),  and "Top-of the-World"  (the present 146.625 site). After the GE progress line equipment was retired, the 145.47 repeater sported a GE Master Pro solid state receiver and a Motorola VHF exciter/PA combination. In 2005, Tim took the repeater off the now 146.625 site and completely rebuilt the repeater, using a factory-stock GE Mastr II repeater that you see in the above pictures.  Here's a link to the NEW 145.47 history page! Click here. 

     After the rebuild.... and after receiving the SERA coordination, Tim was finally able to relocate the 145.470 machine to its long awaited home on top of Cross Mountain. For a long time, it has been obvious that this location was perfect for a repeater.  As a matter of fact, Tim originally did attempt to locate a machine there back in the 1980's, but for one reason or another it just wasn't to be.  Now however, that the dream has finally been fulfilled.
 
 

You can see from these photos that this repeater location is not only at a high elevation, 
but is certainly in a Rugged area of East Tennessee



Now... for a breathtaking look at the view from this repeater site.  It is truly a sight to behold!
(Click on any image to get a larger version)




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