Thursday, May 19, 2011

TETRA and Narrowbanding

Hello,

At the UTC show, we discovered that several companies that still had 25
kHz UHF licenses were about to "narrowband" them to 12.5 kHz to satisfy
FCC requirements. There is more to the story than just turning in those
valuable licenses!

TETRA uses a 25 kHz channel, and digitally divides that channel into 4
separate conversations, each 6.25 kHz wide. Thus, a TETRA signal on
your 25 kHz channel qualifies as a narrowbanded emission, and it is
fully legal and compliant with the FCC Narrowband requirement.

With TETRA, your channel will allow 4 separate conversations, depending
on the configuration of the system. Each base station has to have 1 time slot/conversion for administration and texting functions.

The goal of the FCC is to replace older FM-Wideband 25 kHz conversations
with more efficient 12.5 kHz emissions, meaning that the space 1
conversation used to consume will now allow 2 conversations. With
TETRA, you can double that efficiency, with 4 possible conversations
ongoing at the same time. That's quite a deal, when you consider the
cost of filters, repeaters, and antenna space.

So, if you have 25 kHz licenses, and would like to find out more about
TETRA, please give us a call or an email: 920-494-1828 or
tetra@nielsoncom.com
Thanks,
Christian

Wednesday, May 18, 2011

Find out about TETRA in June!

Hello,

We would like to invite people to attend two coming TETRA events in June. Please email tetra@nielsoncom.com with your inquiries for these events.

EVENT 1: Webinar June 7th
On Tuesday, June 7th, we are hosting a TETRA Webinar to introduce the
radio systems to interested parties who would like to find out more
about TETRA, what it does, and what it can do for you. This webinar will highlight the equipment used in our Green Bay Pilot, and provide an overview of the TETRA environment.

EVENT 2: Demonstration Days - June 21st and June 22nd at Nielson Communications in Green Bay, WI. Watch for more to come on the Demonstration Days event
On Tuesday, June 21, and Wednesday, June 22, we are hosting a TETRA
Demonstration in Green Bay, WI. We are opening the doors for a walk-in,
hands-on TETRA experience to find out more about the system. We will
expand upon the concepts introduced at the Webinar, and answer any
questions you may have concerning the system.

Come see us, and feel the power of TETRA!
If you are interested in attending any of these events, please contact us:
Phone: 800-783-2293 / 920-494-1828
Email: tetra@nielsoncom.com

Hope to see you there!
Christian

Tuesday, May 17, 2011

UTC Show

Hello,
We had a wonderful time at UTC! Thank you to all of the folks who
stopped into see us at Booth 853 for discussion. We found out there is quite an interest for TETRA concerning utilities, and it felt wonderful to talk with excited representatives from various companies.
Thank you for stopping in to see us.

The show went well, and we were able to demonstrate TETRA with a live
connection to our pilot system in Wisconsin. Visitors in California
were able to hear traffic in Wisconsin, and able to talk with our
employees as they drove about their daily tasks.

We demonstrated telephone functions using a VoIP telephone installed at the booth. We
also found that a base station transmitting 600 mW (milliwatts) was able
to talk to a portable radio through several feet of steel and concrete
-- the base station was in a basement, and we were walking around
outside testing the signal ranges.

I wonder if a full watt would have reached the hotels where people were staying. We also demonstrated AVL
and Dispatcher technologies.

Take care, and catch you soon!
Christian