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Probably why an EMP bag will let high frequencies through at strong signal levels. The bags are designed for a dc generated pulse.

The higher the frequency the shorter the wavelength and the smaller the opening that can penetrate.

I like making my own wire antennas for ham radio and I have an antenna analyzer and a nanoVNA which both help with tuning (interchangeably-you don’t need both). It’s one of the more rewarding aspects of amateur radio, and tuning an antenna that is designed to cover the range of frequencies to a specific frequency such as for GMRS is straightforward, but there’s a learning curve for the process and the tools. Like many hobby projects it can be very frustrating if you don’t have a mentor close by.

Thanks for the responses guys. I think now it is just easier to buy one. I might try to tune one eventually just to get the experience. Looks like there are a couple with good reviews on Amazon.

Let us know how that goes.

Thanks for all the input! Oh, and if you are a DAD, Happy Father's Day in advance!

Yes I use CHIRP for programming my radios.

I have one of those as well.

now you got me thinking.. Tomorrow i'll break one out stick my HT in one and see if i can talk with it from an other radio..

I have a metal box with overlap and metal taped edges that my vehicle still detects the fob thru. The chip signal amplifiers are pretty strong. For improved security I took the battery out of the fob and now the chip has to be within a half inch of the start button.

Chirp has been instrumental in helping “unlock” certain GMRS radios that come from the factory locked down to satisfy FCC requirements. The Baofeng UV-5X(G) comes to mind

That would be a lot of hugs. I'm 1 of five boys and all of us are married, plus five grandkids.

Hugs for Days !!

i have some from Nest that claims to be military grade. Big enough to hold a HT with antenna. These are more designed for EMT protection with i would think would work against cell phone detection.

1) NO 2) You would be able to transmit on non-GMRS frequencies but still have the convenience of having the pre-programmed simplex and repeater channels.

There's no advantage; you could just get a UV5R.

Has the UV-5G been unlocked and what's the advantages to doing so? I'm just wondering.

What would be a good source?

Ask Iran

Thats awesome! I hope she got a big cake with 75 candles on it. and everyone got to spend time with her and that means you have to give her 75 HUGS.

Stopped them dead in their tracks.

Did that actually stop the people who were not authorized to use it? I would think most interfering users would figure out what the new tones / codes were pretty easily, unless they just got the tones and had no idea they were not authorized.

My Mom is 75 years young today.

Happy Birthday Mom!