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, UV25X4, or UV-50X2. THIS MULTI-BAND RADIO WILL DELIVER INSTANT RELIABLE COMMUNICATION.
PLEASE READ THIS MANUAL CAREFULLY BEFORE USE
i
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 |
|
ii |
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Turning the unit on |
20 |
||
Turning the unit off |
20 |
||
Adjusting the volume |
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 |
||
UV-25X2 / UV-25X4 / UV-50X2
iii
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 |
|
iv |
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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 |
75 |
|
UV-25X2 / UV-25X4 / UV-50X2
v
VISIT BAOFENGTECH.COM AND MIKLOR.COM FOR DOWNLOADS AND HELP 1
Part I. Getting started
Part one covers the basic setup and use of your mobile two-way transceiver.
CHAPTER 1 GETTING STARTED
CHAPTER 2 BASIC USE
CHAPTER 3. – MENU QUICK REVIEW
CHAPTER 4. – PROGRAMMING
CHAPTER 5. – OTHER SETTINGS
2VISIT BAOFENGTECH.COM AND MIKLOR.COM FOR DOWNLOADS AND HELP
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 supply. Then 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 transmit for long periods of time, as it may overheat the transceiver.
•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)
UV-25X2 / UV-25X4 / UV-50X2
VISIT BAOFENGTECH.COM AND MIKLOR.COM FOR DOWNLOADS AND HELP 3
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 the included accessories are damaged or lost, immediately contact your dealer.
Whatʼs in the Box
UV-25X4 UV-50X2 **UV-25X2 (Not Pictured)
Mobile Radio
Microphone
UV-25X4/UV-25X2* |
or |
UV-50X2** |
* Power Cable (Cig Adapter for UV-25X2,UV-25X4) ** Power Cable (Direct Connect for UV-50X2)
Mounting Screws |
Mounting Bracket |
and Fuse |
|
4VISIT BAOFENGTECH.COM AND MIKLOR.COM FOR DOWNLOADS AND HELP
UV-25X2: Overview of the Front Panel
UV-25X2 / UV-25X4 / UV-50X2
VISIT BAOFENGTECH.COM AND MIKLOR.COM FOR DOWNLOADS AND HELP 5
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)
: when in standby, press to send caller ID (ANI) in the selected signaling mode; while transmitting, press to send activate signaling. 
: press to turn on the squelch, repeat to turn off the squelch.
: press to switch between channel 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
RJ45 Connector:
6VISIT BAOFENGTECH.COM AND MIKLOR.COM FOR DOWNLOADS AND HELP
UV-25X4: Overview of the Front Panel
UV-25X2 / UV-25X4 / UV-50X2
VISIT BAOFENGTECH.COM AND MIKLOR.COM FOR DOWNLOADS AND HELP 7
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
: when in standby, press to send caller ID (ANI) in the selected signaling mode; while transmitting, press to send activate signaling. 
: press to turn on the squelch, repeat to turn off the squelch.
: press to switch between channel 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
RJ45 Connector:
8VISIT BAOFENGTECH.COM AND MIKLOR.COM FOR DOWNLOADS AND HELP
UV-50X2: Overview of the Front Panel
UV-25X2 / UV-25X4 / UV-50X2
VISIT BAOFENGTECH.COM AND MIKLOR.COM FOR DOWNLOADS AND HELP 9
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
: when in standby, press to send caller ID (ANI) in the selected signaling mode; while transmitting, press to send activate signaling. 
: press to turn on the squelch, repeat to turn off the squelch.
: press to switch between channel 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
: press to toggle high/lower power ; hold to key-lock/or key-unlock
RJ45 Connector:
10 VISIT BAOFENGTECH.COM AND MIKLOR.COM FOR DOWNLOADS AND HELP
UV-25X2 & UV-25X4: Overview of the Rear Ports
UV-25X2 / UV-25X4 / UV-50X2
VISIT BAOFENGTECH.COM AND MIKLOR.COM FOR DOWNLOADS AND HELP 11
1. TRRS Line Out: Includes |
TRRS Line-Out Connector:. |
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)
Programming Cable:
PC-04 Cable available at: www.baofengtech.com/accessories
Programming software available at: www.baofengtech.com/download
12 VISIT BAOFENGTECH.COM AND MIKLOR.COM FOR DOWNLOADS AND HELP
UV-50X2: Overview of the Rear Ports
UV-25X2 / UV-25X4 / UV-50X2
VISIT BAOFENGTECH.COM AND MIKLOR.COM FOR DOWNLOADS AND HELP 13
1. SO-239 RF Antenna Connector: |
TRRS Line-Out 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
Programming Cable:
PC-04 Cable available at: www.baofengtech.com/accessories
Programming software available at: www.baofengtech.com/download
14 VISIT BAOFENGTECH.COM AND MIKLOR.COM FOR DOWNLOADS AND HELP
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
UV-25X2 / UV-25X4 / UV-50X2
VISIT BAOFENGTECH.COM AND MIKLOR.COM FOR DOWNLOADS AND HELP 15
Color Display and Icon Descriptions
The Top Line on the LCD will show the current selected channel’s settings at a glimpse:
Icon |
Description |
Icon |
Description |
Ico |
Description |
|
Channel allowed to TX and RX |
|
DCS Enabled (TX,RX or Both) |
|
Positive Offset (Freq. Mode) |
|
Channel allowed to RX Only |
|
Transmit Power: Low |
|
Negative Offset (Freq. Mode) |
|
Channel allowed to TX Only |
|
Transmit Power: High |
|
Offset Enabled (Chan. Mode) |
|
Channel disabled to TX or RX |
|
2Tone Calling Enabled |
|
Channel set to Narrowband |
|
Keypad is Locked |
|
5Tone Calling Enabled |
|
Channel set to Wideband |
|
CTCSS Enabled (TX,RX or Both) |
|
DTMF Calling Enabled |
|
Channel Reverse Enabled |
|
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Battery Strength (Weak Battery Indicator)
VISIT BAOFENGTECH.COM AND MIKLOR.COM FOR DOWNLOADS AND HELP 17
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.
You will want to choose a suitable antenna for the bands you plan on transmitting and receiving on. If you plan on transmitting on 145MHz you will want to ensure you have picked an antenna that states it is capable of working with 145MHz. If an antenna is not properly tuned for the frequency you transmit on – it can cause damage with the reflected power going back into the radio.
Pick an antenna with SWR of less than 1.5:1 to safely transmit.
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 magnetically grounded first.
18 VISIT BAOFENGTECH.COM AND MIKLOR.COM FOR DOWNLOADS AND HELP
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 grounding plane kit.
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
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.
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 and your antenna set-up is advised)
UV-25X2 / UV-25X4 / UV-50X2
VISIT BAOFENGTECH.COM AND MIKLOR.COM FOR DOWNLOADS AND HELP 19
Chapter 2. – Basic Shortcuts and Use
Pound # Key
Keypad Lock
To enable or disable the keypad lock, press and hold the 
key for about two seconds. A quick toggle of the # will alternate power levels from High power to Low power
The keypad lock will lock both the main radio buttons itself and also the handheld keypad.
The PTT/MONI/and Power Buttons will not be locked when enabled.
Star * Key
A short momentary press of the key enables the reverse function (reverses the TX/RX settings according to Offset settings)
When listening to broadcast FM a momentary press will start the scanning. Scanning in broadcast FM will stop as soon as an active station is found
To enable scanning, press and hold the 
key for about two seconds
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