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

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

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

General Area Covered