![So I just bought a ham radio at a yard sale and I'm trying to test it out. Any help would be appreciated as I know nothing about these. I do not So I just bought a ham radio at a yard sale and I'm trying to test it out. Any help would be appreciated as I know nothing about these. I do not](https://preview.redd.it/knveqgp4vqf41.jpg?width=640&crop=smart&auto=webp&s=e2df867560975dfd01ef6e8ac92ed7adcb23fa01)
So I just bought a ham radio at a yard sale and I'm trying to test it out. Any help would be appreciated as I know nothing about these. I do not
![Retevis RB22 DMR digital radio works in a UHF frequency band for 5W and 4000 contacts. | retevis.com Retevis RB22 DMR digital radio works in a UHF frequency band for 5W and 4000 contacts. | retevis.com](https://www.retevis.com/Assets/ProductImages/A/a9232a/A9232A-RB22--17-.jpg)
Retevis RB22 DMR digital radio works in a UHF frequency band for 5W and 4000 contacts. | retevis.com
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