New website

If you are reading this then you are seeing the old website. You may need to refresh your page in your browser or go to:

Squelch Tail

We are working on making a online place to view past and present Squelch Tail. If you have a copy of an old Squelch Tail that you do not see here  please let Daniel / KF4EOK know that we can get it added here. You can contact KF4EOK at 904-701-4FUN or at his call Thanks.

New Roster.

We are working on compiling a new roster. If you are not on the roster and think you should be let Daniel / kf4eok know so that you can get added. You can contact Daniel / kf4eok by phone at 904-701-4FUN or by email at his call sign

New home for the 146.76 repeater

A new home has been found for the 146.76 repeater. Nemours Chidrens Specialty Clinic in downtown Jacksonville has agreed to host the repeater.   The mounting location for the antenna will be on the roof of the building at about 160feet.    Below is a map of the estimated coverage.   Installation is expected to be complete by the end of November.

NOTE: This map is only an estimate of coverage.
Actual coverage can vary greatly depending on equipment used and atmospheric conditions. Green indicates typical hand held coverage. Yellow indicates typical mobile coverage.

The US Air Force reveals radical plan to ‘bomb the sky’ to improve radio reception

The US Air Force reveals radical plan to ‘bomb the sky’ to improve radio reception

  • CubeSats carrying ionized gas could create radio-reflecting plasma
  • This would occur in the ionosphere, which becomes denser at night
  • Bouncing signals between ground and ionosphere can improve range

Read more:
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Presentation on all types of radio communications.



Your smartphone may stop working at any moment!

46% of smartphone owners say their smartphone is something “they couldn’t live without,” What can you do when a disaster strikes and it’s not working?
70% of towers went down in the areas affected by Hurricane Katrina.
Cell phone service wasn’t restored for weeks after 9/11
There doesn’t have to be a disaster for cell service to go down.
April 1, 2016 – ‘Customers throughout the Tampa Bay area suffered through a massive outage impacting cellphone customers.’ -TAMPA, FL (WFLA)
June 4, 2016 ‘Nationwide Cricket Wireless outage’ –

The Jacksonville Range Association presents ‘Radio Communications for Disasters’
September 6th 2016 at Memorial Hospital 3625 University Blvd S, Jacksonville, FL 32216
For additional information visit
All options for radio communications will be discussed.
• Amateur (Ham) Radio
• C.B. Radio
• Digital Spread Spectrum Radio
You will be able to TALK on and LISTEN to over a dozen different radios. You are also invited to bring any existing radios you may own.

Jacksonville RANGE Association, Inc.


IRS 501(c)(3) tax exempt
Jacksonville RANGE Association, Inc.
Agencies served
Agencies served


Jacksonville RANGE Association, Inc. is a not-for-profit tax exempt 501(c)(3) organization existing for the purpose of providing emergency communications to Jacksonville, Florida – Duval County, Florida – State of Florida – and Southeastern United States.

Incorporated under the laws of the State of Florida since early 1990, “RANGE” serves agencies such as Jacksonville Fire and Rescue, Jacksonville Sheriff’s Office, Jacksonville Electric Authority, American Red Cross, Florida Highway Patrol, United States Navy, et. al.

W4RNG is the Federal Communications Commission licensed call sign of the many communications systems owned, operated, and maintained by the Jacksonville RANGE Association, Inc.  The organization has been licensed and has been serving the community for over 40 years.

NOTE!  Our new permanent meeting location is Memorial Hospital, 3627 University Boulevard South, Jacksonville, Florida  32216.  The location of the meeting in the hospital is in the class room area adjacent to the auditorium at the southern end of the campus.




146.760 MHz repeater comes to life…  Saturday, April 23rd, 2016, Ben Bramlett K7BEN, (our dauntless Technical Committee Chairman) and Justin Ellis, Sr., KK4GPY, President of Jacksonville RANGE Association, Inc. and technical committee member extraordinaire, worked for nine hours at the Twin Towers near I-95 and Golfair on the north side accomplishing much!  146.760 MHz is on the air transmitting with about 160 watts of power to a high gain VHF antenna and is receiving, via remote pickup, 146.160 MHz from our Dames point site.

The Orange Park remote site has yet to be tied into the system through the LDG RVS-8 8 channel voter system which apparently suffered failure of a TL084 quad op amp chip and/or failure of a 3240 dual op amp chip so that it would pass no audio at all for either channel 1 (Dames Point) or channel 2 (Orange Park) through to the CAT-1000 controller board.

Another member of the Technical Committee, Jack Driskell, KB4B, has suggested that the failed chips be replaced by corresponding chips that are used for RVS-8 voter channels 7 and 8 which are not currently in use.  As all chips on the RVS-8 PCB are in sockets making the changes will not be too difficult.

IRS 501(c)(3) tax exempt
Jacksonville RANGE Association, Inc.

Jacksonville Range Association Inc.