Hytera Communications BD55XVHF Digital Portable Radio User Manual
Hytera Communications Corporation Limited Digital Portable Radio Users Manual
Users Manual
Preface 
Thanks for your favor in our product. This manual provides guidance for you to use the product. To avoid 
body injury or property loss caused by misoperation, please carefully read the Safety Information 
Booklet before using the product. 
This manual is applicable to the following product: 
BD55X Digital Portable Radio   
Copyright Information 
Hytera is the trademark or registered trademark of Hytera Communications Corporation Limited (the 
Company) in PRC and/or other countries or areas. The Company retains the ownership of its trademarks 
and product names. All other trademarks and/or product names that may be used in this manual are 
properties of their respective owners. 
The product described in this manual may include the Company's computer programs stored in memory 
or other media. Laws in PRC and/or other countries or areas protect the exclusive rights of the Company 
with respect to its computer programs. The purchase of this product shall not be deemed to grant, either 
directly or by implication, any rights to the purchaser regarding the Company's computer programs. Any 
of the Company's computer programs may not be copied, modified, distributed, decompiled, or 
reverse-engineered in any manner without the prior written consent of the Company. 
Disclaimer 
The Company endeavors to achieve the accuracy and completeness of this manual, but no warranty of 
accuracy or reliability is given. All the specifications and designs are subject to change without notice 
due to continuous technology development. No part of this manual may be copied, modified, translated, 
or distributed in any manner without the prior written consent of the Company. 
We do not guarantee, for any particular purpose, the accuracy, validity, timeliness, legitimacy or 
completeness of the Third Party products and contents involved in this manual. 
If you have any suggestions or would like to learn more details, please visit our website at: 
http://www.hytera.com. 
FCC Statement 
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant 
to part 15 of FCC Rules. These limits are designed to provide reasonable protection against harmful 
interference in a residential installation. This equipment generates and can radiate radio frequency 
energy and, if not installed and used in accordance with the instructions, may cause harmful interference 
to radio communications. However, there is no guarantee that interference will not occur in a particular 
installation. If this equipment does cause harmful interference to radio or television reception, which can 
be determined by turning the equipment off and on, the user is encouraged to try to correct. 
The interference by one or more of the following measures: 
  Reorient  or  relocate  the  receiving  antenna. Increase  the  separation  between  the 
equipment and receiver. 
  Connect the equipment into an outlet on a circuit different from that to which the receiver 
is connected. 
  Consult the dealer or an experienced radio/TV technician for help. 
Operation is subject to the following two conditions: 1. This device may not cause harmful interference, 
and 2. This device must accept any interference received, including interference that may cause 
undesired operation. 
Note: Changes or modifications to this unit not expressly approved by the party responsible for 
compliance could void the user’s authority to operate the equipment. 
Compliance with RF Exposure Standards 
Hytera's  portable radio  complies  with  the  following  RF  energy  exposure  standards  and guidelines: 
  United States Federal Communications Commission, Code of Federal Regulations; 47 CFR 
§ 1.1307, 1.1310 and 2.1093 
  American  National  Standards  Institute  (ANSI)  /  Institute  of  Electrical  and  Electronic 
Engineers (IEEE) C95. 1:2005; Canada RSS102 Issue 5 March 2015. 
  Institute of Electrical and Electronic Engineers (IEEE) C95.1:2005 Edition 
RF Exposure Compliance and Control Guidelines and 
Operating Instructions 
To control your exposure and  ensure  compliance with  the occupational/controlled environment 
exposure limits always adhere to the following procedures. 
Guidelines: 
  Do not remove the RF Exposure Label from the device. 
  User awareness instructions should accompany device when transferred to other users. 
  Do not use this device if the operational requirements described herein are not met. 
Operating Instructions: 
  Transmit no more than the rated duty factor of 50% of the time.  To transmit (talk), push the 
Push-To-Talk (PTT) button. To receive calls, release the PTT button.  Transmitting 50% of 
the time, or less, is important because this radio generates measurable RF energy 
exposure  only when transmitting (in terms of measuring  for standards compliance). 
  Hold the radio in a vertical position in front of face with the microphone (and the other parts 
of the radio, including the antenna) at least one inch (2.5 cm) away from the nose. Keeping 
the radio at the proper distance is important because RF exposures decrease with distance 
from the antenna. Antenna should be kept away from eyes. 
  When worn on the body, always place the radio in a Hytera's approved clip, holder, holster, 
case, or body harness for this product. Using approved body-worn accessories is important 
because the use of Hytera's or other manufacturer's non-approved accessories may result 
in exposure levels, which exceed the FCC's occupational/controlled environment RF 
exposure limits. 
  If you are not using a body-worn accessory and are not using the radio in the intended use 
position in front of the face, then ensure the antenna and the radio are kept at least 2.5 cm 
(one inch) from the body when transmitting. Keeping the radio at the proper distance is 
important because RF exposures decrease with increasing distance from the antenna. 
  Use only manufacturer's name approved supplied or replacement antennas, batteries, and 
accessories. Use of non-manufacturer-name approved antennas, batteries, and 
accessories may exceed the FCC RF exposure guidelines. 
  Contact your local dealer for the optional accessories of the product. 
EU Regulatory Conformance 
As certified by the qualified laboratory, the product is in compliance with the essential requirements and 
other relevant provisions of the following directives: 
  1999/5/EC or 2014/53/EU 
  2006/66/EC 
  2011/65/EU 
  2012/19/EU 
The device has been tested and compliance with SAR limits, users can obtain Canadian information on 
RF exposure and compliance 
Après examen de ce matériel aux conformité aux limites DAS et/ou aux limites d’intensité de champ RF, 
les utilisateurs peuvent sur l’exposition aux radiofréquences et la conformité and compliance d’acquérir 
les informations correspondantes 
ISEDC  Statement
Opera
d
RSSith
This device complies w
tion is subject to the following two conditions:
(1) this device may not cause interference, and
(2) this device must accept any interference, including interference that may cause undesired operation of the device.
Innovation, Science and Economic Development Canada  standar
CNR d'ISEDC applicables aux
br
de
Le présent appareil est conforme aux appareils radio exempts de licence. 
L'exploitation est autorisée aux deux conditions suivantes: (1) l'appareil ne doit pas produire 
ouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le 
brouillage est susceptible d'en compromettre le fonctionnement
Please note that the above information is applicable to EU countries only. 

1 
1. Items in the Package 
Please unpack carefully and check if all items listed below are received. If any item is missing or 
damaged, please contact your dealer. 
Item  Quantity (PCS)  Item  Quantity (PCS) 
Radio  1  Antenna  1 
Battery  1  Belt Clip  1 
Charger  1  Strap  1 
Power Adapter  1  Documentation Kit  1 
Note 
The frequency band is marked on the label of antenna; if it is unavailable there, see the label on the 
radio. 

2 
2. Product Overview 
2.1 Product Controls 
Note 
For your convenience, you may request your dealer to program the SK as the shortcut to a radio 
feature. 
2.2 LED Indication 
LED Indicator  Radio Status 
Flashes green  Being turned on. 
Glows green  Receiving. 
Glows red  Transmitting. 
Flashes orange slowly  Scanning. 
Glows orange 
Call hang time: No voice is being transmitted or received on the channel 
during a call. Within such a period, you can hold down the PTT key to 
speak. 

3 
3. Before Use 
3.1 Attaching the Antenna 
Step 1  Place the antenna in its receptacle. 
Step 2  Rotate the antenna clockwise. 
Caution 
Do not hold the radio by its antenna; otherwise, the radio performance may be reduced and the life span 
of the antenna may be shortened. 
3.2 Attaching the Battery 
Step 1  Insert the top end of the battery into the top of the battery slot. 
Step 2  Press the bottom end of the battery until the latch snaps into place. 
Note 
To remove the battery, make sure that the radio is turned off, and then slide the battery latch upwards to 
unlock the battery. 
3.3 Attaching the Belt Clip 
Step 1  Unfasten the two screws on the back of the radio. 
Step 2  Align the screw holes on the belt clip with those on the back of the radio. 
Step 3  Tighten the screws. 
3.4 Attaching the Accessories 
Step 1  Open the accessory connector cover. 
Step 2  Plug the accessory into the accessory connector. 
Step 3  Tighten the screw on the accessory plug. 
3.5 Charging the Battery 
Caution 
Use the charger specified by the Company to charge the battery. 
Be sure to charge the battery fully before initial use, since reduction of state of charge (SoC) may lead to 
low battery alarm. You can charge the standalone battery or the radio with the battery attached. It is 

4 
recommended that your radio remain powered off during charging. 
The LED indicator on the charger shows the charging status. For details, see the following table. 
LED Indicator  Charging Status 
Glows green  The battery is inserted incorrectly or fully charged. 
Glows red  The battery is charging. 
Glows orange  The battery is charged to 85% or above. 
3.6 Checking the Battery Power 
You can check the current battery power by holding down the Battery Power Indicator key 
programmed by your dealer, and release the key to exit. The following table lists battery power 
indications: 
LED Indicator  Alert Tone  Battery Power 
Glows green  Three beeps  High 
Glows orange  Two beeps  Medium 
Glows red  One beep  Low 
Flashes red  Low battery tone 
Under  the  low  battery  threshold.  Please 
recharge or replace the battery. 

5 
4. Basic Operations 
If you want to…  Do this… 
Turn on the radio  Rotate the On-Off/Volume Control knob clockwise. 
Turn off the radio  Rotate the On-Off/Volume Control knob counterclockwise. 
Increase/Decrease 
the volume 
Rotate  the  On-Off/Volume  Control  knob  clockwise/counterclockwise  after 
turning on the radio. 
Select a channel  Rotate the Channel Selector knob. 
6 
5. Call Services 
5.1 Call on Digital Channel 
On the digital channel, you can initiate or respond to a group call or private call. A group call is a call from 
an individual user to a group of users. A private call is a call from an individual user to another individual 
user. 
5.1.1 Initiating a Call 
Step 1  Select the required channel. 
Step 2  Hold the radio vertically 2.5 to 5 cm from your mouth. 
Step 3  Hold down the PTT key and speak when the radio is in standby mode. 
5.1.2 Receiving and Responding to a Call 
When receiving a call, you can listen to it without any operation. You can hold down the PTT key to 
respond within the preset time period. 
5.2 Call on Analog Channel (Without Signaling) 
A call on analog channel is from an individual user to all users on the channel. The operations are the 
same as the call on digital channel. 

7 
6. Optional Features 
The following features need to be programmed by your dealer. Please contact your dealer for detailed 
operations. 
Type  Feature  Description 
Radio 
Feature
Zone 
Allows you to select a zone. The radio supports up to 3 zones, with a 
maximum of 16 channels per zone. 
Power Level  Allows you to switch the transmit power level between high and low. 
Scan 
Allows the radio to scan all channels in the scan list programmed for 
the current channel. 
Emergency Alarm 
Allows you to initiate an emergency alarm or call at any time to ask for 
help in case of emergencies. 
Voice Operated 
Transmit (VOX) 
Allows  you  to  enjoy  hands-free  communication  with  the  dedicated 
VOX earpiece. 
Busy Channel 
Lockout  Prevents the radio from transmitting on a busy channel. 
Time-out Timer 
(TOT)  Terminates transmission when the preset time period expires. 
Battery Save 
Allows the radio to automatically enter the battery save mode when 
detecting no activity or operation within a certain time period. 
Digital 
Feature
One Touch Call 
Allows  you to press  one key to  call  the predefined private  or  group 
contact. 
All Call  Allows you to initiate a call to all users on the channel. 
TDMA Direct Mode
Allows the radio to operate on a channel with two time slots. 
Analog 
Feature
Squelch Off  Allows the radio's speaker to always keep unmuted. 
Squelch Level 
Allows you to adjust the  squelch  threshold  required for  the radio  to 
unmute. 
Monitor  Allows the radio to monitor activities on the channel. 
CTCSS/CDCSS  Allows you to prevent unwanted calls on the same frequency. 

8 
7. Troubleshooting 
Phenomena  Analysis  Solution 
The  radio  cannot 
be turned on. 
The  battery  may  be  installed 
improperly. 
Remove and reattach the battery. 
The battery power may run out.
Recharge or replace the battery. 
The  battery  may  suffer  from 
poor  contact caused  by  dirtied 
or damaged battery contacts. 
Clean  the  battery  contacts  or  replace  the 
battery. 
During  receiving, 
the  voice  is  weak, 
discontinuous  or 
totally inactive. 
The  battery  voltage  may  be 
low. 
Recharge or replace the battery. 
The volume level may be low. 
Increase  the  volume  by  rotating  the  Volume 
Control Knob. 
The antenna may get loose or 
may be installed improperly. 
Turn  off  the  radio,  and  remove  and  reattach 
the antenna. 
The speaker may be blocked.  Clean the surface of the speaker. 
You  cannot 
communicate  with 
other  group 
members. 
The frequency or signaling may 
be  inconsistent  with  that  of 
other members. 
Set your TX/RX frequency and signaling to the 
same as those of other members. 
The  channel  type  (digital  or 
analog)  may  be  set 
inconsistently. 
Make  sure  all  members  are  on  the  same 
digital or analog channel. 
You may be too far away from 
other members. 
Move towards other members. 
Irrelevant voices or 
noise  is  heard  on 
the channel. 
You  may  be  interrupted  by 
radios  using  the  same 
frequency. 
Change the  frequency,  or  adjust  the  squelch 
level. 
The radio in analog mode may 
be set with no signaling. 
Set  signaling  for  all  radios  operating  at  the 
same frequency to avoid interference. 

9 
Phenomena  Analysis  Solution 
The  noise  is  too 
loud. 
You may be too far away from 
other members. 
Move towards other members. 
You  may  locate  in  an 
unfavorable  position.  For 
example,  your  communication 
may  be  blocked  by  high 
buildings  or  frustrated  in  the 
underground areas. 
Move to an open and flat area, and restart the 
radio to try again. 
You  may  suffer  from  external 
disturbance  (such  as 
electromagnetic interference). 
Stay  away  from  equipment  that  may  cause 
interference. 
If the above solutions cannot fix your problems, or you may have some other queries, please contact us 
or your local dealer for more technical support. 

10 
8. Care and Cleaning 
To guarantee optimal performance as well as a long service life of the product, please follow the tips 
below. 
Product Care 
  Do not pierce or scrape the product. 
  Keep the product far away from substances that can corrode the circuit. 
  Do not hold the product by its antenna or earpiece cable. 
  Close the accessory connector cover when no accessory is in use. 
Product Cleaning 
Caution 
Turn off the product and remove the battery before cleaning. 
  Clean up the dust and fine particles on the product surface and charging piece with a clean and dry 
lint-free cloth or a brush regularly. 
  Use neutral cleanser and a non-woven fabric to clean the keys, knobs and front case after long-time 
use. Do not use chemical preparations such as stain removers, alcohol, sprays or oil preparations, so 
as to avoid surface case damage. 
  Make sure the product is completely dry before use.   

11 
9. Optional Accessories 
Contact your local dealer for the optional accessories of the product. 
Caution 
Use the accessories specified by the Company only; otherwise, the Company shall not be liable for 
any loss or damage arising out of use of unauthorized accessories.