General Categories > Survival/Emergency Preparedness
a emergency radio channel
shooter:
--- Quote from: justsomeguy on September 25, 2017, 07:36:48 AM ---The zello app worked like a champ for us down in South Texas last month.
Every one already has a cell phone. No new (to you) technology to learn.
Nation wide network already in place.
Additional features not available on wireless 2 way. (Ability to block obnoxious users from channel.)
--- End quote ---
the idea for this thread. was to use this during a emergency. I was thinking more like power out and no land line or cell service.
justsomeguy:
Well I can tell you power was out EVERYWHERE and it worked.
Gunscribe:
In a previous post I mentioned line of sight distances for direct communication. I mentioned that radio to radio may only be a few miles and a handheld radio to a repeater may be in the tens of miles. The link I'm providing is a rudimentary calculator that will give you a general guide to what you can expect transmitting either simplex (radio to radio) or radio to repeater. Just put in the height of your antenna and the height of the receiving antenna whether it is another handheld or repeater and click the distance button.
http://www.qsl.net/kd4sai/distance.html
Wrmedic:
We have had very good luck with Icom radios on fire department. A mobile (vehicle) mounted will greatly increase the range due to a handheld being 3-5 watts and a mobile around 25 watts.
zofoman:
If anyone is considering getting serious into the HAM stuff, I have an old HyGain military tower and mast that I would be willing to part with. Its heavy-duty thick aluminum and as I recall with the mast put it at around 70'....I'd have to measure to be sure. Also have the rotor and controller that worked when everything was taken down so many years ago. I have since lost interest in high freq radio. (maybe this belongs in a for sale area...admin?)
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