Author Topic: A better antenna for your UV5R Handy Radio  (Read 1545 times)

Offline Carl

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A better antenna for your UV5R Handy Radio
« on: February 22, 2015, 05:13:30 PM »
You got your HAM radio and discovered that you can't talk around the world....
there is just not that much difference between Ham radio and MURS,FRS,GMRS radios..
small,5 to 7 mile OPTIMUM RANGE unless you do things to make it better.

Hold the radio VERTICAL and speak clearly
Get as high a spot as you can to transmit
POOR performance from inside an auto or structure
POOR performance when in thick or wet vegetation
POOR performance when in a valley,you can't transmit through earth
Handy Radios are built for 20% duty cycle ,Talk 10 seconds...wait a minute before talking again (they will over-heat)
When the radio gets warm,stop talking and let it cool off
You can get a better portable ,mobile,or base antenna

Below are two links to tests and you can pick the best antenna for your needs

http://www.miklor.com/COM/UV_Antennas.php


http://www.miklor.com/COM/pdf/AntennaTestingW9MDB.pdf


The HT is HANDY but not always the best choice for prepper/emergency/or longer expected range work...but it is a small handy size that is easy to carry when on foot or public transportation. It works well for users,once their limitations are understood.

The mobile radio provides more power,better cooling, a better antenna efficiency(most important) and is powered by the auto battery or,at home,a power supply with an even better antenna height and coverage.

I have been asked for VHF/UHF antenna designs that others can build and I offered the BIG STICK as one that can be built without SWR meters of antenna analyzers ...but measurements are CRITICAL and must be carefully done because while a few inches short or long on an 80 meter (3.5 MHZ) 120 foot long dipole are not a big problem...1/16 of an inch mistake in measurement of a VHF/UHF antenna (typical 19 inches) can very likely cause poor performance or damage to a radio!!!

Offline chad

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Re: A better antenna for your UV5R Handy Radio
« Reply #1 on: February 23, 2015, 09:27:48 AM »
Good info thanks