Picture of External antenna for Emergency Weather Radio
I picked up a fairly new weather radio from Oregon Scientific (Model WR102) at a consignment outfitter recently. Unfortunately, due to my location, I couldn't get any signal using just the onboard antenna. I decided to rectify this situation, and make a detachable antenna for when I needed better signal. Sorry for the picture quality my camera kinda sucks and I can't afford to get a new one at the moment.
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Step 1: Materials and Tools

Picture of Materials and Tools
For this project, you won't really need very much.
Small phillips head screwdriver
Wire stripper
Soldering iron and solder (if desired, I did not use mine)
Small magnet

several feet of very narrow-gauge wire(I used about 24 gauge)
Crimp-on releasable connectors
External antenna (I salvaged mine from a clock radio)

Step 2: Crack open the casing

Picture of Crack open the casing
To open up the case, you need to remove four screws. Two are just outside the battery compartment, and two are on the inside. While you're doing this, make sure not to lose the thin gasket that waterproofs the batteries. Set these screws aside, and try not to lose them. Then gently pry the case open. It may catch a bit, but just keep at it

Step 3: Unscrew the existing antenna

Picture of Unscrew the existing antenna
For this step, you will need to get access to the small built-in antenna. To do so, you need to unscrew three small screws in the upper pcb of the radio, and then unscrew the antenna from the case. Hold on to the very small screw that held the two together. This is where a magnetized screwdriver comes in handy.

Step 4: Drill the hole for the antenna

Picture of Drill the hole for the antenna
I forgot to take photos for this step while I was doing it, but you need to drill a very narrow hole through the casing between the existing antenna and the headphone jack. This will be sealed with superglue later. Go very gently, as you don't want to go through too fast and damage the internals.
If you did this to a walkie talkie do you think it would interfere with the quality of transmissions over the predetermined frequencies?
highjacked2 years ago
What did you use the magnet for? I didn't see it used.
The Insomniac (author)  highjacked2 years ago
I used it to magnetize my screwdriver so I wouldn't lose all the tiny screws. As it is I never recovered three of them.
Your pics rock compared to mine!! I just use my ipod look at my instructables and youll see how crappy mine are lol
Schmidty162 years ago
do ypu thik this would work for a computer
RZombie792 years ago
I have the same weather radio. I had to really play with the radio to find the channel button. Once I did locate the channel that was closest to my home, the sound is crystal clear.

Put the batteries in the radio. Press the NOAA button on the top right hand side of the radio. Then press the channel button until the letter at the top of the screen located on the left hand side starts to flash. Use the volume buttons on the left side of the radio to change the channel. The channels are listed from A through G.

I included the directions above for anyone else who has this radio, but does not know how to set the channel closest to their home.
What do you think the range of the modified radio is?