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Old Pages/Amateur/HAM_HT_Baofeng_UV-5R.md

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+## Overview
+
+The UV-5R family of radios are cheap 4W micro handheld transceivers with
+reasonably good stock features especially given the price. They can be
+modified to bypass the on board MCU, which is a write once chip that
+cannot be modified. The UV-5Rs are software controlled radios (not SDRs)
+they have hardware filters that prevent the same kinds of band expansion
+as the UV-3Rs.
+
+## Links
+
+### General Info
+
+- [bricklore UV-5R tagged](http://www.brickolore.com/search/label/UV-5R)
+- [Baofeng UV-5R Info](http://UV5R.net)
+- [Baofeng UV-5R Programming
+  Guide](http://uv5r.net/baofeng-uv-5r-programming/)
+- [menu
+  cheatsheet](http://kc9hi.dyndns.org/uv5r/programming/UV-5R%20Menus.html)
+- [info and software for programming (careful the software is
+  unveted)](http://kc9hi.dyndns.org/uv5r/programming/)
+
+### Modifications
+
+#### Software
+
+- [CHIRP](http://chirp.danplanet.com/projects/chirp/wiki/Home) - a free,
+  open-source tool for programming your amateur radio. (appears to
+  support the UV-5R)
+
+#### Firmware
+
+#### Hardware
+
+#### Recommended Modifications
+
+## Notes
+
+### Performance
+
+#### MCM2013
+
+- Receive sensitivity is pretty severely lacking. UV5R had issues at
+  WaterPoint 4 on nets C/H/G. No received signal at all. All other HTs
+  at the same location had perfectly fine Rx.
+
+### Recommended Accessories
+
+- A wide based flush fit BNC (or similarly durable connector) adapter
+  (sometimes called an antenna saver) given the short mating cycle "SMA
+  connectors are rated for up to 500 mating cycles" [citation via
+  Wikipedia](https://en.wikipedia.org/wiki/SMA_connector)
+  - example: [SMA Male to BNC Female
+    Connector](http://thumbs4.ebaystatic.com/m/mUgb7YRjFqInb9GoQZVkQMw/140.jpg)
+  - Also you can replace the adapter much more easily than the SMA
+    connection in the radio.
+  - You can even apply some threadlock (the light duty stuff) to the
+    threaded part and still keep the groundplane continuity because of
+    the wide base on the adapter touching the rim of the SMA socket.
+- Get a dedicated antenna for VHF and UHF (or whichever you will use the
+  most). The dedicated antennas will do wonders for performance as the
+  stock antenna is really pretty horrible and multiband antennas in
+  general can only be so good on any given band they are tuned for
+  before the others suffer, so they end up being okay at best on all of
+  them. If you followed the above then get a BNC terminated antenna and
+  don't worry about adapters for the antennas.
+
+## Hardware Versions
+
+There are a large number of internally identical radios with very
+nonstandardized names in the UV-3R and UV-5R family.
+
+- [UV-3R](HAM_HT_Baofeng_UV-3R "wikilink")