Tri-Cities Scanner Frequencies
August 2010 Newsletter

Listen to the live scanner at:
http://live.scannerfood.com

  • Ground Loop Isolator
  • Scannefood.com Updates
  • Feed Stats
  • New Wide-Area Feed Pics
  • New Twitter Option
  • Chapter 10-12 Test
  • New Licenses

 

Well Since the last newsletter, we've found new frequencies...
Here's a sample of what's new....
Frequency  Tone Description State  County
173.2750 None Russell Co SO (Vehicle Repeater) VA Russell
451.0500 123.0 Giles County FD's / EMS VA Giles
452.3000 d132 Pike County Schools KY Pike
452.3750 131.8 Craig County EMS / FD's VA Craig
453.0250 100.0 Pulaski Co EMS Repeater VA Pulaski
453.5250 79.7 Pulaski Co Schools (Peaks Knob) VA Pulaski
453.5625 151.4 Floyd Co FD's / EMS Ch1 VA Floyd
453.6625 103.5 Floyd County SO VA Floyd
453.7750 71.9 Pulaski Co FDs/EMS (Peaks Knob) VA Pulaski
461.2750 d712 Highlands Hauling & Landscaping NC Watauga
462.1250 114.8 Loven Inc - Concrete Co - Bays Mtn TN Sullivan
463.0750 179.9 Bristol LSC (Vehicle Repeater) VA Bristol
463.5000 186.2 Holston Valley Med Center Ops TN Sullivan
463.5375 d072 Giles County (Leo Use) VA Giles
947.0000 None WEHC Studio Link Meadowview WFM VA Washington


That's just a few, check out the Radio Phonebook (Link at the end of newsletter)


Ground Loop Isolators

Ground loop isolators are a device that breaks the electrical connection of an audio cable's connection via
a transformer. In a transformer, two windings of a coil transfer the electrical energy via induction instead of a
direct connection from point A to point B. Read more on Wikipedia

Well, I hate to say this but in our case such a device did not solve the issue of AC hum. However, we did solve the issue
by releasing the ground current from the scanner feed's audio cable. This was accomplished via a soldered cable from the
coaxial cable (remember this is grounded at the antenna) to the frame of the computer (the 3rd wire, green, is earth grounded
to the computer's frame). Since the conductor is larger and has very solid connections it naturally has a lower resistance value.
A ground loop isolator would solve this issue if operating from a non-grounded antenna. Check out the updated feed pics below
to see how this was implemented.


Feed Stats courtesy of radioreference.com

Wide Area Feed


Washington County, VA


Site Data Updates!

  • Frequency Browser
    (Counties and States being updated this week)
  • Media Section
    (Expired/Archived files re-upped)
  • Unknowns
    (New webform data loaded with latest unknowns)

Last month's Yagi project got some paint and a tripod!


Click for larger

It seems to be doing just the trick to pull in New River Valley frequencies from a simple high spot in Abingdon. Bigger is better and only our imagination (and the weight/cost of copper) can limit how big the next yagi project is.

There has been lots of activity recently with the past full moon, yeah that what we said! Check out the media section for some recorded radio traffic of two separate shootings, and a plane making an emergency landing.

As for the MotoTRBO modifications / software ...I have been asked to keep that information off the net in the best interest of both groups.


Updated Wide-Area Feed Pics

EMI Prevention Diamond Vertical Antenna Antenna
Audio Cable Surge Prevention House Entry Grounding
Heat Shrink Wrapped Gravel and Snap-Together Edging Feed Scanner / Felt To Protect Desk


Mobile Twitter Updates

Now you can get updates via SMS by texting
follow scannerfood to 40404

There are no charges other than your carrier initiated charges for normal sms use.
Or if you prefer follow us from your computer at http://www.twitter.com/scannerfood


Recommended Reading
Two- Way Radios and Scanners
for Dummies

ISBN: 978-0764595820

Perfect for anyone new to the hobby and an excellent refresher for us that have become a little rusty. This is the most up to date publication that effectively covers multiple radio services available.

I have been mentoring someone new to the scanner hobby and provided a little reinforcement. If you're wanting to test your skills, here are some sample tests I quickly drew up to make the subject matter a little more intensive.

Chapters 1-6 Test
Chapters 7-9 Test
Chapters 10-12 Test


Answers to chapters 1-6 HERE
Answers to chapters 7-9 HERE

Answers to follow in each new newsletter

Recent FCC Licenses (Next Update in October)
These are yet to be confirmed as active, however its not a bad idea to go ahead and program them in if live near their respective service areas. They have been hand picked from hundreds of new licenses.     FB - Base
MO- Mobile / Portable Use
MOI- Interconnected Mobile
FB2 - Repeater
FB2C - Repeater with interconnect
FB6C - Shared Repeater
FX1- Link to Repeater
FXO - Fixed

You can search for FCC
licenses on the
Research page.

NEW (in yellow)
  1. Two new radio station links.
  2. VDOF has licensed 159.4125 possibly as a correction or fill for the STARS system, well have to monitor this one to see how its plays out.
  3. Greeneville, TN has a new scada type microwave system to listen for, test your scanners range if you're in the area.

EXISTING

  1. New repeater for NS railroad in the Maxie section of Buchanan County, VA. It looks like per license notes this will be extending the range of the existing voice microwave infrastructure back to the dispatchers office in Bluefield.
  2. Facilities or security repeater for the new Franklin Woods Community Hospital.
State County Agency Callsign Frequency Type Notes
VA Washington Emory and Henry College WQMG822 947.0000 FX1 Studio Link to Transmitter Tower
VA Wise Jimmy Epperson WNSM884 860.0125 FB2C Renewal - On High Knob
VA Smyth Holston Valley Broadcasting WHS232 949.0000 FX1 WMEV-AM Studio Link to Walker Mtn Transmitter location
VA Tazewell Virginia Dept Forestry WQMJ477 159.4125 FB8 Trunked / most likely P25
TN Greene Greeneville Water Commission WPQT547 932.30625 FX0 Water Data / Control coms
TN Greene Greeneville Water Commission WPQT547 941.30625 FX0 Water Data / Control coms
VA Buchanan Norfolk Southern Railroad WQLZ318 452.4375 FB2 Maxie. Microwave Voice Repeater
VA Buchanan Norfolk Southern Railroad WQLZ318 457.4375 FX1 Maxie, Microwave Voice Repeater Input
TN Washington Franklin Woods Hospital WQLZ535 452.3875 FB2  
TN Washington Franklin Woods Hospital WQLZ535 457.3875 MO, FX1  
   


        Download the Radio Phonebook (Updated August 29 2010)

Stats / Last Months Stats

Frequency Pairs / Singles: 1834 up from 1827
Unit Numbers: 3106 - up from 3104

General Area Covered

         


Other Month's Newsletters

Scannerfood.com HomePage


Here's what we're working on...

Search and Store Tutorial
Mobile Data Solutions
Local Business Radios
Pager effects Pt2
Interference
Interoperability



That's it for now, Happy Scanning!


We want to hear from you!
Drop us an email at
kf4uel@yahoo.com



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