retevis
Use Code RT47VSALE Cick to Copy
$20 OFF on orders over $300. ×
0

Your cart is empty.

US

How to build your own frs radio

How to build your own frs radio

How to build your own frs radio

The Family Radio Service (FRS) is a private, two-way, short-distance voice and data communications service for facilitating family and group activities. The most common use for FRS channels is short-distance, two-way voice communications using small hand-held radios that are similar to walkie-talkies.

The FRS is authorized 22 channels in the 462 MHz and 467 MHz range, all of which are shared with GMRS.

 Today we'll be tackling that problem by building a radio go box that:
• Houses 3 radios and accessories
• Provides protection from sun, dirt, moisture and physical shock
• Acts as a charging station using a single wall adapter to charge all three radios
• Easy and convent to transport and store
• May even provide protection to the radios from an EMP

This setup will be great for camping, road trips and family activities.

Step 1: ​Gather Supplies

Materials-
• 50 cal ammo can
• Masonite
• Wood block more or less 2" x 8" x 1/2"
• 1 female 5.5mm x 2.1mm DC power jack
• 3 male 5.5mm x 2.1mm DC power jack pigtails
• 3 radios (I used Baofeng UV-82's, read more about radios in the next step)
• USB programming cable
• Pouch about 9" by 4" (You can buy it or make one like I did)


Tools-
• Saw to cut masonite
• Something to drill holes
• Wood glue
• Large post-it notes
• Soldering iron
• Hot glue gun
• Computer to program radios

Step 2: A Word About Radios

The radios I selected for this project have the ability to transmit on a number of different bands and radio services. It is your responsibility to operate these radios in a legal manner.

HD1
I've played with a number of different radios and these seem to be the best bang for the buck. They are solidly built, can operate on frequencies between 136-174mhz and 400-520mhz and can transmit with VHF 10W/5W/1W  / UHF 8W/4W/1W power , In step 6 we'll program thEe radio using a computer.

This radio can monitor two frequencies at once, but only receive one at a time. One interesting feature is 2 push to talk (PTT) buttons, allowing to you broadcast on two different frequencies at will without additional button presses.

You may also wish to outfit your radios with a better antenna.

Radio bands and frequencies
Here is a brief rundown of the different radio bands and services these radio can operate on, including links to the FCC site for the full description of each.

• Amateur or ham radio - This is a powerful and versatile radio service that requires a license to operate. I very strongly recommend you do not transmit on ham frequencies without a license. A ham license is easy to get and for this project you will only need the lowest level license, called a technician. Find a local amateur radio club to learn more about how to get on the air.
• Multiple Use Radio Service MURS - This service is not as commonly used. It does not require a license and allows for transmissions up to 2 watts. It only offers a few channels for use. FCC page on MURS
• General Mobile Radio Service GMRS - This service requires a license, though I've never heard of any enforcement of the requirement. GMRS can operate up to 5 watts on 23 channels. Many store bought radios transmit on these frequencies. FCC page on GMRS
• Family Radio Service FRS - This service requires no license and is specifically crippled to limit communications to about 1/2 mile. Transmissions are limited ti 1/2 a watt. This is what almost all store bought two way radios are. FCC page on FRS

Step 4: Layout, Drill Holes and Assemble the False Bottom

Step 5: Final Assembly

Step 6: Programming the hd1

 frs radio

Leave a comment

0

Select Your Country