BTECH UV-25X2, UV-25X4, UV-50X2 User Manual
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Copyright © 2017 by BTECH; https://baofengtech.com
All rights reserved. No part of this publication may be reproduced, distributed, or
transmitted in any form or by any means, including photocopying, recording, or
other electronic or mechanical methods, without the prior written permission of the
publisher, except in the case of brief quotations embodied in critical reviews and
certain other noncommercial uses permitted by copyright law. For permission
requests, write to the publisher.
Contributions taken from: Miklor.com Resource Site, and Jim Unroe, KC9HI. Used by
permission. All rights reserved.
THANK YOU FOR YOUR PURCHASE OF THE BTECH: UV-25X2, UV-
25X4, or UV-50X2. THIS MULTI-BAND RADIO WILL DELIVER
INSTANT RELIABLE COMMUNICATION.
PLEASE READ THIS MANUAL CAREFULLY BEFORE USE
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Table!of!Contents! !
Part!I.!Getting!started! 1!
Chapter!1.!–!Getting!Started! 2!
Unpacking!and!Inspecting! 3!
UV-25X2:!Overview!of!the!Front!Panel! 4!
UV-25X4:!Overview!of!the!Front!Panel! 6!
UV-50X2:!Overview!of!the!Front!Panel! 8!
UV-25X2!&!UV-25X4:!Overview!of!the!Rear!Ports! 10!
UV-50X2:!Overview!of!the!Rear!Ports! 12!
Hand!Held!Mic!Keys!and!Description! 14!
Color!Display!and!Icon!Descriptions! 15!
Antenna!Basics! 17!
Grounding!Plane:! 17!
Antenna!Requirements! 18!
Chapter!2.!– !Basic!Shortcuts!and!Use! 19!
Pound!!#!Key! 19!
Star!*!Key! 19!
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UV-25X2!/!UV-25X4!/!UV-50X2!
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Turning!the!unit!on! 20!
Turning!the!unit!off! 20!
Adjusting!the!vo lume! 20!
Making!a!call! 21!
Channel! selection! 21!
Frequency!(VFO)! mode! 21!
Channel!(MR)! mode! 22!
Monitor!Both!VFO!&!MR!Modes! 23!
Chapter!3.!– !Menu!Quick!Review! 24!
Quick!Menu!Settings! 24!
Chapter!4.!– !Programming! 32!
Frequency!Mode!vs.!Channel!Mode! 32!
Ex:!Programming!a!Channel!Repeater!Offset!with!CTCSS!Tone! 33!
Ex.!Programming!a!Simplex!Channel!with!CTCSS!tone! 34!
Chapter!5.!– !Other!Settings! 35!
Toggle!from!High!to!Low!Power! 35!
Storing!an!FM!Radio!Station!and!Scanning! 35!
Keypad!Lock-out! 35!
PTT!ID!Setting! 35!
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DTMF!RX!Settings! 36!
DTMF!TX!Settings! 36!
Remote!Stun! 37!
Remote!Kill! 38!
Remote!Revive! 38!
Read!More!About!Remote!Commands! 39!
DTMF!Receive!Settings,!Transmit!Setting!(Call!Key)! 39!
2TONE!Receive!Settings,!Transmit!Setting!(Call!Key)! 39!
5Tone!Receive!Settings,!Transmit!Setting!(Call!Key)! 40!
Scanning! modes! 41!
Time! operation! 41!
Carrier! operation! 41!
Search! operation! 42!
SKIP!Scanning!Channels! 42!
Scanning!a!Frequency!Range!(VFO!Mode)! 42!
Tone! Scanning! 43!
Scanning!for!CTCSS!and!DCS!Tones/Codes! 43!
Dual,!Tri,!and!Quad!Watch!(TMR)! 46!
Chapter!6.! - ! Selective! calling! 48!
CTCSS! 49!
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UV-25X2!/!UV-25X4!/!UV-50X2!
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DCS! 50!
1000Hz,!1450Hz,!1750Hz,!2100Hz! Tone-burst! 52!
Part!III.!How-to!and!setup!guides.! 53!
Chapter!7.! - !Repeaters! 54!
Chapter!8.! - ! Application!Specific!Setup! 57!
Commercial!Radio!Setup! 57!
Amateur!Radio! Setup! 58!
FRS,!GMRS,!MURS,!PMR446! 58!
Chapter! 9.! - ! Customization! 60!
Display! 60!
Sync!Display!Channels! 62!
Appendix!A.!-!Menu!definitions! 64!
Appendix!B.! - ! Technical!specifications! 74!
General! 74!
Receiver! 75!
Transmit
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Part!I.!Getting!started!
Part%one%covers%the%basic%setup%and%use%of%your%mobile%two-way%transceiver.%
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CHAPTER!1!GETTING!STARTED!
CHAPTER!2!BASIC!USE!
CHAPTER!3.!–!MENU!QUICK!REVIEW !
CHAPTER!4.!–!PROGRAMMING!
CHAPTER!5.!–!OTHER!SETTINGS!
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UV-25X2!/!UV-25X4!/!UV-50X2!
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Chapter!1.!–!Getting!Started!
BEFORE PROCEEDING INSURE:
• Qualified!technicians!shall!service!this!equipment!only.!Do!not!modify!the!radio!for!any!
reason.!
• Use!only!BTECH!supplied!or!approved!accessories.!
• Turn!off!your!radio!prior!to!entering!any!area!with!explosive!and!flammable!materials.!Do!
NOT!USE!your!transceiver!at!a!gas/fuel!station!
• For!vehicles!with!an!air!bag,!do!not!mount!your!radio!in!the!area!over!an!air!bag!or!in!the!
air!bag!deployment!area.!
• Do!not!expose!the!radio!to!direct!sunlight!over!a!long!time,!nor!place!it!close!to!a!heating!
source.!
• If!the!unit!emits!smoke!or!an!odor,!you!should!immediately!cut!off!the!power!supp ly.!The n!
send!the!radio!to!the!nearest!service!center!or!dealer!
• Do!not!operate!the!mobile!transceiver!on!high!power!unless!it!is!necessary.!Do!not!transm it!
for!long!periods!of!time,!as!it!may!ove rh eat!th e!tran sce iver.!
• Keep!the!unit!away!from!dusty,!damp!and!wet!environments!
• Use!the!correct!power!supply!(~13.8V);!do!not!use!incorrect!or!higher!voltage!(e.g.!24V)!!
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Unpacking and Inspecting
• Please!check!the!packaging!of!your!radio!for!any!signs!of!damage.!
• Carefully!open!the!box,!and!confirm!your!received!the!items!listed!below.!
• If!you!find!the!radio! or!th e!inc lud ed!accessories!are!damaged!or!lost,!immediately!contact!
your!dealer.!
Whatʼs in the Box
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UV-25X4%%%% %%%%%%% %%%%%%%%%%%%%UV-50X2!
% %%%%%%%%%%%%%%%%%%%%**UV-25X2%(Not%Pictured)%
Mobile!Radio!!
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Microphone!
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%%%%%%%%%%%%%%%%%%%%UV-25X4/UV-25X2*%%%%%%%%%%%%or%%%%%%%%%%%%%%%%%%%%%%%UV-50X2**!
*!Power!Cable!(Cig!Adapter!for!UV-25X2,UV-25X4)!
**!Power!Cable!(Direct!Connect!for!UV-50X2)!!
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Mounting!Screws!!!!!!!!!!Mounting!Bracket!
!!!!!!!!!!!!!!and!Fuse
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UV-25X2:!Overview!of!the!Front!Panel!
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1. V/M!Mode!Switch!
(Channel/Frequency)!
2. Monitor!function!
3. Call!key!
4. FM!radio!function!key!
5. Power,!On/Off!Press!+!Volume!Knob!
6. Exit!Menu!+!A/B/C/D!signal!switching!
+!alarm!function!
7. Display!screen!
8. Microphone!Connector!
9. Confirm!Key!Press!+Main!Selector!
(Menu!Knob)!!!
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:!when!in!standby,!press!to!send!caller!
ID!(ANI)!in!the!sele cte d !s ign a lin g!mode;!while!
transmitting,!press!to!send!activate!signaling.!!
:!press!to!turn!on !th e !s q u e lch ,!r ep e a t!t o !
turn!off!the!squelch.!!
!:!press!to!switch!between!chan nel!
mode!and!frequency!mode.!!
:!press!to!choose!between!A,B,C,!or!D!
frequencies!!---!Or!exit!function!mode.!!
:!press!to!enter!and!exit!FM!radio!
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RJ45!Connector:! !
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UV-25X4:!Overview!of!the!Front!Panel!
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1. Power,!On/Off!Press!+!Volume!Knob!
2. V/M!Mode!Switch!
(Channel/Frequency)!
3. Confirm!Key!Press!+Main!Selector!
(Menu!Knob)!!!
4. Monitor!function!
5. FM!radio!function!key!
6. Display!screen!
7. Call!key!
8. Exit!Menu!+!A/B/C/D!signal!switching!
+!alarm!function!
9. Microphone!Connector!
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:!when!in!standby,!press!to!send !ca lle r!
ID!(ANI)!in!the!sele cte d !s ign a lin g!mod e;!while!
transmitting,!press!to!send!activate!signaling.!!
:!press!to!turn!on !th e !s q u e lch ,!r ep e a t!t o !
turn!off!the!squelch.!!
!:!press!to!switch!between!chan nel!
mode!and!frequency!mode.!!
!:!press!to!choo se !between!A,B,C,!or!D!
frequencies!!---!Or!exit!function!mode.!!
:!press!to!enter!and!exit!FM!radio!
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RJ45!Connector:! !
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UV-25X2!/!UV-25X4!/!UV-50X2!
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UV-50X2:!Overview!of!the!Front!Panel!
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1. Power,!On/Off!Press!+!Volume!Knob!
2. V/M!Mode!Switch!
(Channel/Frequency)!
3. Confirm!Key!Press!+Main!Selector!
(Menu!Knob)!!!
4. Monitor!function!
5. FM!radio!function!key!
6. Display!screen!
7. Call!key!
8. Exit!Menu!+!A/B/C/D!signal!switching!
+!alarm!function!
9. High!/!Lower!Power!Switch!+!Lock!
10. Microphone!Connector!
11. DATA,!Programming!Jack:!PC-04!
Programming!Cable!Jack!
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:!when!in!standby,!press!to!send !ca lle r!
ID!(ANI)!in!the!sele c te d!s ig n alin g !mode;!while!
transmitting,!press!to!send!activate!signaling.!!
:!press!to!turn!on !th e !s q u e lch ,!r ep e a t!t o !
turn!off!the!squelch.!!
!:!press!to!switch!between!chan nel!
mode!and!frequency!mode.!!
!:!press!to!choo se !between!A,B,C,!or!D!
frequencies!!---!Or!exit!function!mode.!!
:!press!to!enter!and!exit!FM!radio!
:!press!to!toggle!h igh / lo wer!power!;!
hold!to!key-lock/or!key-unlock!
RJ45!Connector:!
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UV-25X2!/!UV-25X4!/!UV-50X2!
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UV-25X2!&!UV-25X4:!Overview!of!the!Rear!Ports!
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1. TRRS!Line!Out:!Includes!
PTT/Microphone/Audio-out/GND!
2. DATA,!Programming!Jack:!PC-04!
Programming!Cable!Jack!
3. Cooling!Fan!
4. SO-239!RF!Antenna!Connector:!
Connects!to!PL-259!Antennas!!
5. DC!Power!Input!(13.8V!–!7A!Peak)!
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TRRS!Line-Out!Connector:.!!
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Programming!Cable:!
PC-04!Cable!available!at:!www.baofengtech.com/accessories!!
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Programming!software!available!at:!www.baofengtech.com/download!!
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UV-25X2!/!UV-25X4!/!UV-50X2!
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UV-50X2:!Overview!of!the!Rear!Ports!
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1. SO-239!RF!Antenna!Connector:!
Connects!to!PL-259!Antennas!!
2. DC!Power!Input!(13.8V!–!20A!Peak)!
3. TRRS!Line!Out:!Includes!
PTT/Microphone/Audio-out/GND!
4. Cooling!Fan!
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TRRS!Line-Out!Connector:.!!
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Programming!Cable:!
PC-04!Cable!available!at:!www.baofengtech.com/accessories!!
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Programming!software!available!at:!www.baofengtech.com/download!!
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UV-25X2!/!UV-25X4!/!UV-50X2!
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Hand Held Mic Keys and Description
1 “MENU”:!Function!key!!
VFO/MR!Toggle!!(Long!Press)!
2 “UP”:!Higher!frequency!!
3 “DOWN”:!Lower!frequency!!
4 “EXIT”:!Exit!the!AB!channel!switch,!alarm!
function!!
Alarm!Activate!(Long!Press)!
5 “*/SCAN”:!Scanning!function!
6 “#/LOCK”:!High!/!Low!Power!Toggle!
Keyboard!Lock!!(Long!Press)!
7 “0”:!Number!0!
8 !“1”:!Number!1!
9 “2”:!Number!2!
10 “3”:!Number!3!
11 “4”:!Number!4!
12 “5”:!Number!5!
13 “6”:!Number!6!
14 “7”:!Number!7!
15 “8”:!Number!7!
16 “9”:!Number!9!
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Color!Display!and!Icon!Descriptions!
The!Top!Line!on!the!LCD!will!show!the!current!selected!channel’s!settings!at!a!glimpse:!
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Icon!
Description!
Icon!
Description!
Ico
Description!
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Channel!allowed!to!TX!and!RX!
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DCS!Enabled!(TX,RX!or!Both)!
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Positive!Offset!(Freq.!Mode)!
Channel!allowed!to!RX!Only!!
Transmit!Power:!Low!
Negative!Offset!(Freq.!Mode)!
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Channel!allowed!to!TX!Only!
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Transmit!Power:!High!
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Offset!Enabled!(Chan.!Mode)!
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Channel!disabled!to!TX!or!RX!
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2Tone!Calling!Enabled!
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Channel!set!to!Narrowband!!
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Keypad!is!Locked!
5Tone!Calling!Enabled!!
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Channel!set!to!Wideband!!
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CTCSS!Enabled!(TX,RX!or!Both)!
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DTMF!Calling!Enabled!
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Channel!Reverse!Enabled!
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Battery!Strength!(Weak!Battery!Indicator)!
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UV-25X2!/!UV-25X4!/!UV-50X2!
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Antenna Basics
Your!Mobile!Radio!Kit!does!not!include!an!Antenna.!It!is!VERY!Important!to!NOT!transmit!without!a!
antenna!or!dummy!load!attached!to!the!mobile!radio.!Doing!so,!will!cause!harm!to!the!internal!
components!of!your!radio.!
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You!will!want!to!choose!a!suitable!antenna!for!the!bands!you!plan!on!transmitting!and!receiving!on.!
If!you!plan!on!tra n smitting!on!145MHz!you!will!wa n t !to !e n su r e!you!have!picked!an!antenna!that!
states!it!is!capable!of!working!with!145MHz.!If!an!antenna!is !n o t!p r o p er ly!t u n e d !fo r!t h e!f re q u e n cy !
you!transmit!on!–!it!can!cause!da mage!with!the!reflected!power!going!back!into!the!radio.!
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Pick!an!antenna!with!SWR!of!less!than!1.5:1!to!safely!transmit.!!
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Grounding!Plane:!
Antennas!require!an!appropriate!grounding!plane!to!properly!work:!
!
Magnetically Mounted Antennas:
These!antennas!must!be!grounded!to!a!metal!surface,!such!as!a!vehicle!body.!Magnetic!base!
antennas!do!not!properly!operate!unless!they!are!fully!magn etic ally!gro un de d!first.!
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NMO or PL-259 Base Antennas:
These!antennas!will!normally!require!a!base!or!mobile!hardware!kit.!These!kits!are!grounded!either!
through:!drill!or!clamp!inserts!on!vehicles,!magnetically!mounted,!or!available!as!stationary!base!
hardware!kits.!Some!antennas!may!include!a!base!station!groundin g !p lan e !kit .!!
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Antenna!Requirements!
Antenna!SWR!Rating:!1.5:1!or!less!(on!the!radio!frequencies!in!use.)!
Antenna!Impedance:!50!ohm!(use!50!ohm!rated!coax!and!coax!connectors)!
Antenna!Grounding:!Ensure!the!antenna!is!mounted!with!a!grounding!plane!
Visually!Inspect!Coax/Connectors!for!any!Slits!or!Damage!–!moisture!should!not!be!allowed!to!
penetrate!fittings!or!your!coax!!
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To!maximize!the!life!of!your!radio,!it!is!important!to!understand!antenna!basics!before!transmitting!
on!your!radio,!transmitting!without!an!antenna,!or!with!high!SWR!(Standing!Wave!Ration)!–!can!
void!warranty!support.!
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An!Active!SWR!Meter!is!a!great!tool!to!have!when!selecting!an!antenna!for!your!needs.!You!can!
monitor!and!confirm!that!your!SWR!is!within!safe!levels!when!setting!up!your!radio!for!the!first!
time!(periodically!checking!SWR!a nd !you r!an ten na!se t-up!is!advised)!! !
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