Authentic Genuine Nagoya NA-320A... https://www.amazon.com/dp/B01K10B9XK?ref=ppx_pop_mob_ap_share
Do you think it is fake, and that's why it doesn't work? Thousands of people seem to think it works great.
Have you used a UV-5R or BF-F8HP? if so, how does the UV-5X3 compare in your opinion? Do you think the extra band on the UV-5X3 is worth the cost?
If I went the UV-5X3 route I was going to pick up an NA-320A tri band antennae.