Reddit reviews DHT LLC AD075 2 Pieces SMA Female to BNC Female Convert Adapter for Two Way Radio BaoFeng UV-5R FD-880

These go on the radio (pack of 2 but only need 1), and fit flush.

Then for the antenna you'll probably want these, they're not gapless on the antenna side but some heatshrink over the connection would hide it fairly well I imagine.

> We like to hike and he's mentioned bring the radio along.

For hiking how about a Mobilinkd APRS modem that bridges his (android only) phone and his radio. Combine this with a Comet SMA-24J/Diamond SRJ77CA/Signalstuff Signalstick (SMA Female option).

> He has a fairly long commute and may like a the car connector.

Get a BNC-SMA female adapter and replace my previous antenna suggestions with the BNC model (Comet BNC-24J/Diamond RH77CA/Signalstuff Signalstick (BNC option)) for compatibility and a Tram 1185 plus UV-82 compatible battery eliminator and handmic. Everyone here more or less recommends a drilling a hole in your car for an NMO mount; its tidier, waterproof and won't damage the paint compared to having a big magnet stuck to your roof, but I realize that isn't an option for a lot of people.

Edit: I typically recommend stuff based on Universal-Radio.com's prices simply because I can navigate their website easily, but there is also hamradio.com which often has slightly better prices at the cost of being a nightmare to navigate.

From the radio you need this
sma to bnc adapter
then
pl259 to bnc cable
to go to the
swr meter then you need
this F adapter to your standard tv coax going to your antenna

with these parts you can reuse them over and over for antenna projects instead of spends a lot of money on just one antenna you may not wind up using. also you should use any coax you have now and figure out what coax you will need in the future instead of buying new coax since you are inexperienced

I would get this and this instead of the 771. Screwing and unscrewing the SMA connectors is a pain, and you'll end up taking a long antenna off to pack/store it. Plus that makes it easy to hook up to a external antenna of some kind quickly (like a roll up slim jim or a mag mount in the car)

(these)[http://www.amazon.com/dp/B00CVQK466/] are a bit better on many HTs because they actually sit down totally flush against the radio housing which gives them more structural stability.

For race track comms you would not need the updated gear. It is for pulling in weak signals from farther away. But if you really want them:
https://www.amazon.com/DHT-LLC-AD075-Convert-Adapter/dp/B00CVQK466/ref=sr_1_3?ie=UTF8&qid=1539919285&sr=8-3&keywords=baofeng+bnc+adapter&dpID=512eaHTlUAL&preST=_SY300_QL70_&dpSrc=srch

and

https://www.amazon.com/Antenna-HYS-771N-BNC-Handheld-Radio/dp/B01N5Y8H9L/ref=sr_1_fkmr2_1?ie=UTF8&qid=1539919513&sr=8-1-fkmr2&keywords=2m+%2F+440+antenna+with+bnc+connector

Yes, if he also gets the BNC adapter, I ended up getting the adapters for my Nagoya. much easier to change to another antenna like http://www.amazon.com/Original-Hypario-Antenna-baofeng-Sma-Female/dp/B00DTQ4A6M?ie=UTF8&psc=1&redirect=true&ref_=oh_aui_detailpage_o00_s00 with this http://www.amazon.com/2pcs-coaxial-coax-adapter-female/dp/B00CVQK466?ie=UTF8&psc=1&redirect=true&ref_=oh_aui_detailpage_o00_s02 and this http://www.amazon.com/Valley-SMA-Male-BNC-Adapter/dp/B00AWELKJE?ie=UTF8&psc=1&redirect=true&ref_=oh_aui_detailpage_o00_s01