Beifeng Telecom BF-998 User manual

1
Acknowledgement
Thank your for buying BEIFENG series professional radio communications
products!
Since 1989, BEIFENG has been always engaging in research and
exploration of radio communications technologies for dozens of years to lead
intelligent technologies in the industry. We still make every effort to research and
design products according to modern complicated communications environment,
and are well positioned to customize special communications solutions adapting
to your industrial properties. Excellent performance and outstanding
communications strength allow our products being your ideal options for getting
the big picture and also intelligent scheduling and command delivery, no matter
what field you are in.
Applicable model
UHF Professional FM Mobile Transceiver BF-998
Need-to-Know
Security: it is important that a user fully understands general risks of using
a two-way radio.
uThe government decree forbids use of a radio transmitter without authorization
within the territorial jurisdiction.
uApply for frequency point to local radio management committee before using a
mobile transceiver. Illegal operation may be subject to fine or arrestment.
uRepair is only done by a specialist.
Announcement
Procurement and use of this device is a behavior setting and using radio station that should be
approved legally for establishing a station and authorized with a radio station license. During use,
operate this device in accordance with items permitted in the radio station license. Setting and
using radio stations without authorization and interfering with radio services, not to work as
licensed and other behaviors in violation of regulations in the radio administration act will be
administratively punished by the radio administration authority. Anyone who seriourly violate
radio usage would even offend against article 288 of "Criminal Law" or article 28 of "Public
Security Punishment" that would be sentenced to fixed-term imprisonment of not more than three
years, criminal detention or public surveillance and also be subject to fine, or subject to fine alone
or be punished with "administrative detention" by a public security bureau..

2
Precautions
Please follow following precautions to prevent fire, personal injury or damage
to the machine:
●The recommended usage rate for the mobile transceiver is 1 minute for TX and 4
minutes for RX. Long and continuous TX will result in heating of the rear panel. Do not allow
the rear panel of the two-way radio to contact surface of a plastic object.
●Do not expose the mobile transceiver to direct sunlight for a long time or place it near a
heating source.
●Do not place the mobile transceiver in an extremely dusty, moist or splash place, or on
an unstable surface.
●If unusual odor or smoke is found, immediately power the mobile transceiver off. Then
contact your local BEIGENG vendor.
●In no circumstances can the product be modified without authorization. The company
is not liable for any adverse consequence resulting from unauthorized modification.
Note: Do not operate the mobile transceiver while driving that may result in
serious consequences.
If you want to use this product for secondary development, please contact BEIFENG
or local BEIFENG vendor.
Warnings:
uPlease turn the two-way radio off in a combustible or explosive environment, including
a place rich in combustible gas or dusty area such as filling station and gas station;
uIf your mobile transceiver is installed in the trunk or other places, please do not place
the fuel tank in the trunk.
uThe transmission of radio signal may bring about harm. Do not allow your body touch
or get close to the antenna when the mobile transceiver transmits radio signal, to
avoid effect on transmission of radio signal or any personal injury from radio wave.

3
Table of Contents
Unpack and Inspection......................................................................................................... 4
Supplied accessories .................................................................................................... 4
Attachment Installation of Mobile Transceiver Accessories................................................... 5
Installation of Mobile Transceiver................................................................................... 5
Installation of Antenna................................................................................................... 6
Connection of Power Cord ............................................................................................ 7
Installation of Base Station............................................................................................ 7
Replacement of Fuse.................................................................................................... 8
About the Product ................................................................................................................ 9
Front Panel ................................................................................................................... 9
Rear Panel...................................................................................................................10
Schematic Diagram of Hand Microphone .....................................................................11
Basic Operations.................................................................................................................11
LCD Display.................................................................................................................11
Power On/Off ...............................................................................................................12
Adjust Volume..............................................................................................................12
Select a Channel..........................................................................................................12
Make a Call..................................................................................................................12
RX................................................................................................................................12
Operations..........................................................................................................................13
General Inquiries.................................................................................................................16
Maintenance .......................................................................................................................16
Servicing and Cleaning .......................................................................................................17
Simple Trouble shooting......................................................................................................17
QT Standard Frequency Table.............................................................................................18
DQT Standard Code Table...................................................................................................19
Technical Indicators.............................................................................................................19
Declaration..........................................................................................................................20
开

4
Unpack and Inspection
Unpack and Inspection
Note: Following unpacking notes are only for local BEIFENG vendors,
authorized BEIFENG agents or factories. Please take the two-way radio out of the
package carefully. It is recommended to check accessories according to the
following checklist before discarding its package. If any item is missed or
damaged, please immediately contact your local BEIFENG vendor.
Supplied accessories
Items Accessory No. Quantity
Power cord BF-PC981 1
Hand microphone BF-M100 1
Support BF-ZJ001 1
Screw BF-CZLS001 2
Power fuse BF-PF801 1
Operating Manual 1
Warranty 1
Certificate 1
Power cord
Hand microphone

5
Support
Screw
Power fuse
Operating Manual
Note: Do not use non-BEIFENG genuine standard parts.
Attachment Installation of Mobile Transceiver
Accessories
Installation of Mobile Transceiver
Select a safe and convenient place inside your car to minimize impact on
passengers and yourself when your car is moving. Try to select a well-ventilated
place where avoid direct sunshine.
Use supplied self-tapping screws to fix the mixing support to your car. To
prevent injury of passengers, please use the safety support and screws provided
by the company to firmly attach the two-way radio.

6
Installation of Antenna
Properly install and adjust the antenna before performing operations on the
mobile transceiver/base station. The success of the attachment depends on the
right antenna type and if it is properly installed. If a proper antenna is used and
installed, the two-way radio will achieve the optimum performance.
The antenna for a base station shall be set in a high ground without obstacles
around; the antenna for a mobile transceiver is suitable for installing in the center
of the car roof; the use of an antenna with higher gain will obtain better coverage
Cautions
uPlease use a low loss coaxial feeder with impedance of 50Ω to connect the
antenna to the two-way radio to match the system impedance and obtain best
communication effect. A feeder without impedance of 50Ω will affect the
standing wave of the antenna feed system, reduce the TX and RX effect of
the two-way radio, and even damage the two-way radio.
uBefore transmission, be sure to connect the two-way radio to the antenna or
other matching loads. If transmitting before connecting to the antenna or other
matching loads, the two-way radio may be damaged.
uAll base stations installed with outdoor antenna shall be set with arresters to
reduce damage on the two-way radio or even fire risk due to lightning.
Warnings
During transmission, if electronic elements are not properly protected or isolated from radio
frequency power, these devices may be damaged. If your car is set with these devices, please consult
your vehicle vendor to ask and check if these devices are properly protected during transmission.

7
Connection of Power Cord
Be sure to use fully charged 12 V vehicle power. If the two-way radio has low
battery, the TX output power will be significantly reduced and you will be given an
alarm during transmission. Do not connect your two-way radio directly to 24 V
power. If 24V power is required for your two-way radio, please use an additional
dedicated DC-DC power.
After the power cord is installed in placed, wrap heat resistant adhesive tape to
the fuse holder to resist moist. Wrap the whole power cord.
To prevent short circuit, disconnect other connections of the negative terminal
before connecting the two-way radio.
[Notes]
13.8 V DC power supply is used for BF-998. Do not use 24V power for this
unit. Before installing this unit to your car, check the power polarity and voltage.
Note following points when connecting and disconnecting the power supply:
uUse a dedicated BF-PC981 mobile transceiver DC power cord to connect the
device to the power supply, and connect the red power cord to the positive
pole while the black power cord to the negative pole. Be sure not to connect
the positive and negative terminal to prevent short circuit that may damage
the power supply.
uThe power supply shall be placed in a stable place inside your car to prevent
poor connection due to vibration while driving that may affect use of the
mobile transceiver.
uCheck that the power supply is firmly and properly connected before powering
the device on.
uDo not cut or remove the fuse holder on the DC power cord; otherwise, wrong
connecting or surging current may result in smoke or fire.
Installation of Base Station
If the two-way radio is to be used as a base station, you need an optional
independent dedicated 13.8V DC power supply. It is recommended to use this

8
power supply with 15A or more current capacity.
The power supply and two-way radio can be directly placed on the work table, or
use a proper support to attach the two-way radio and power supply to the wall.
Note: to make full use of BEIFENG two-way radio, it is recommended to use our
dedicated power supply.
Before completing all connections, do not connect this DC power supply to AC
socket;
Be sure that both the two-way radio and DC power supply are disconnected.
Connect the DC power cord to the output end of the DC power supply and check
that the polarity is right (red: positive, black: negative).
Connect the DC power cord to the power connector of the two-way radio till it is
locked in place.
Replacement of Fuse
If the fuse is burned, please find out the cause and eliminate it, and replace
with a new fuse after the fault is eliminated. If a newly-installed fuse is burned,
please disconnect the power cord, and contact your local authorized BEIFENG
Service Center or your local vendor for help.

9
About the Product
Front Panel
①Key F1: short press to enable talk around function, and long press to enable selection of
key tones.
②Key F2: monitoring function.
③Key F3: short press to enable priority channel scanning, long press to enable full channel
scanning and double click to enable dual channel scanning.
④Key M: access to SQ level setting.
⑤LED indicator: Tx lights red, and Rx lights green. If signal encoding is available, green
indicator lights after decoding.
⑥Hand microphone or programming cable connecting socket
⑦Up key: channel or function selection from up to bottom.
⑧Power switch - Volume controller: clockwise to power the machine on or increase volume
and anti-clockwise to power the machine off or reduce volume.
⑨Down key: channel or function selection from bottom to up.
⑩LCD display
⑪Horn

10
Rear Panel
⑫Antenna port: connect the external antenna to this terminal. When testing the transmission,
please connect a dummy load to replace the antenna. The antenna system or the dummy
load has 50Ω of impedance.
⑬Radiator fan
⑭DC13.8V power cable
⑮Data interface

11
Schematic Diagram of Hand Microphone
⑯PTT button: press this button to talk to the microphone.
⑰Store dial key: press this key to store dial number.
⑱Microphone: sound input.
⑲Dial key area: press these keys to perform dial call of signal encoding.
Basic Operations
LCD Display
Icon Description
Display during low power
Display during medium power
Display during high power
Display when the current operating
channel is added to the scan
sequence.
Display of other features such as
operating frequency or channel
number.
Digits of manual dial
Display of CTCSS
Display of CDCSS

12
Display of DTMF
Display of narrow band
Display of scanning
Display of monitoring
Display of receiving carrier signal
This bar displays the Rx signal
intensity when receiving a signal.
Display during Tx
Display of talkaround
Note: Icons not specified here are not used for this two-way radio.
Power On/Off
Clockwise turn the Power switch/Volume controller to power the two-way radio on. When
you hear "Click" sound, the machine is powered on.
Turn the Power switch/Volume controller anticlockwise to power your two-way radio off.
Adjust Volume
Turn the Power switch - Volume controller to adjust the volume: clockwise to increase
volume and anti-clockwise to reduce volume.
Note: You can press F2 key to enable monitoring feature, and obtain the proper volume
according to background noise level.
Select a Channel
Press key ，to select a desired channel. Use the key to increase the channel
number and use the key to reduce the channel number.
Make a Call
1. Firstly, use F2 key to monitor the speaker for a while, to check that the selected channel is
free.
2. Press the hand microphone PTT key and talk to the microphone.
● Keep 3-4 cm away from Mic and talk to Mic with normal tone to obtain the best
quality.
● When pressing the PTT key, if the LED lights red, Tx is in progress.
3. Releasing the PTT key, your two-way radio exits from TX status and enters RX status.
RX
When an effective signal is received, the green LED indicator will continuously light green
(channel is busy), all following signal bars are displayed and the speaker is on; if this channel

13
is set with QT/DQT and receives the carrier with same frequency, but QT/DQT is different, the
green LED indicator will continuously light (same carrier), all following signal bars except for
BUSY signal bar are displayed and the speaker is off; if this channel is set with signal coding,
and receives the carrier with the same frequency, but the signal coding is different, the green
LED indicator will light continuously (same carrier), all following signal bars except for BUSY
signal bar is displayed, but the speaker is off.
If the calling signal is weak and your two-way radio is set to high SQ level, this call will
not be received.
Operations
①Key F1: short press to enable talk around function, and long press to enable selection of
key tones. The following describes operations:
Short press on F1, the screen displays: , indicating the talk
around feature is enabled
Note: If the channel has same TX and RX frequency, the talkaround icon is
not displayed, and pressing this key will give "beep" sound that indicates
wrong status.
Press on F1 for a while to switch on or off the key tone, and press F1 again to
confirm it. If no other operations are done within 5 s after access to the key tone
setting, the mobile transceiver will automatically exit the key tone setting, and the
key tone setting keeps unchanged. The following describes operations:
ON: enable the key tone
OFF: disable the key tone
②Key F2: monitoring feature.
After F2 is pressed, the screen displays: , and gives a
"swish" sound, indicating that the monitoring feature is enable
③Key F3: short press to enable priority channel scanning, long press to enable
full channel scanning and double click to enable dual channel scanning. This
Talk around icon
long
press
monitor
icon

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operation is possible only when a channel is enabled with scanning feature. The
varying channel number on the screen displays the scanned channel and retain in
the active channel.
Scanning Mode
1、Full channel scanning
Long press the scan key (F3) to enable the full channel scanning. LCD
displays icon, and the detection signal is switched between channels enabled with
scanning feature in the programming software. Starting from the current channel,
detect next channels one-by-one. When an effective signal is scanned, scanning
stops, and scanning continues after a signal disappears, You can press any key to
exit, and the icon on the LCD disappears; if this channel is not enabled with
scanning feature, or this channel has scanning feature enabled but the two-way
radio has no two or more channels with scanning feature enabled, regardless of
press of key F3, you are not able to access to any scanning feature, and will be
prompted with error alert.
2、Priority Channel Scanning
Short press the scan key (F3) to enable the priority channel scanning. LCD
displays icon , and the detection signal is switched between channels added
with scanning feature and priority channels in the programming software. Starting
from the current channel, detect next channels one-by-one. When an effective
signal is scanned, scanning stops, and scanning continues after a signal
disappears, You can press any key to exit, and the icon on the LCD
disappears; if this channel is not enabled with scanning feature, or this channel
has scanning feature enabled but the two-way radio has no two or more channels
with scanning feature enabled, regardless of press of key F3, you are not able to
access to any scanning feature, and will be prompted with error alert.
Note: The priority channel scanning can be performed only when the programming
software is required to set with a priority channel. If there is no priority channel, short
press on F3 will not access to the priority channel scanning, and you will be prompted
with error alert.
3、Dual Channel Scanning
Double click on the scan key (F3) to enable the dual channel scanning. LCD
displays icon, and the detection signal is switched between the current channel
and priority channel. Starting from the current channel, detect the signal between
current channel and priority channel. When an effective signal is scanned,
scanning stops, and scanning continues after a signal disappears, You can press
any key to exit, and the icon on the LCD disappears; if this channel is not
enabled with scanning feature, or this channel has scanning feature enabled but
the two-way radio has no two or more channels with scanning feature enabled,
regardless of press of key F3, you are not able to access to any scanning feature,

15
and will be prompted with error alert.
Note: The dual channel scanning can be performed only when the priority type of the
programming software is set to "Fixed". If the priority type is not set to "Fixed", double
click on F3 will not access to the dual channel scanning, and you will be prompted with
error alert.
The screen displays followings when the scan function is enabled:
④M key: press the M key to access to the SQ level adjustment interface, and use and
key to change the SQ level. Press the M key to confirm settings, and exit from the SQ
level setting interface; if any other key is pressed in this case, then the setting is invalid, and
the SQ level setting interface is exited; If no any other operation is done within 5 s after
accessing to the SQ level setting interface, then the mobile transceiver will automatically exit
from the SQ level setting feature.Available SQ level: 1-9 or disable SQ feature: OFF.
Procedures:
⑤Manual dial (only when DTMF signal is set in the channel, manual dial feature can be
enabled)
Press the numeric key or * or # key on the hand microphone to directly
access the manual dial feature, input three or more numbers (code set in the
encoding table). Press the PTT to dial the number. If numbers input are less than
3, then pressing the PTT key will not dial the number, and you will be prompted
with error alert. Press the MR key to delete input numbers, and press BACK key
to exit the manual dial feature; if no any other operation is done within 5 s after
accessing to the manual dial, then mobile transceiver will automatically exit the
manual dial feature.
The screen displays followings during manual dial:
Long
Press
scan
function
enabled
varying display of scanned channel
add scan
short
press

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⑥Store Dial Number
Press the CALL key on the hand microphone to access the store dial number
feature, and press the numeric key to select the signal encoding (the signal
encoding corresponding to the number set in the programming software), and
then press the PTT key to dial the number; if you input only one number, it will not
send it out, and you are prompted with error alert; if the number you input has not
set the encoding in the programming software, it will not send it out also, and you
are prompted with error alert. Press the MR key to delete the number you input,
and press BACK key to exit the store dial number feature; if no any other
operation is done within 5 s after accessing to the manual dial, then then mobile
transceiver will automatically exit the store dial number feature. The following
describes operations:
General Inquiries
This product is strictly commissioned and tested according to manufacturer
specifications before delivery, and unauthorized maintenance or calibration or modification to
this product may cause invalid warranty.
Maintenance
When this product is returned to your vendor or service center for maintenance, please
use the original packing box or packaging materials, together with detailed fault description,
as well as your phone number, name and address, to allow the maintenance staff to contact
you if necessary. Your fax number and Email address are also required. Unless you confirm
that attachments shall be repaired, do not independently return the attachments for
maintenance.
You can send this product to your local authorized BEIFENG vendor or any other authorized
press
press
display the nth character you input
display
the
DTMF
code
you
input
display the nth character you input
display
the
DTMF
code
you
input
press

17
BEIFENG Service Center. Do not separately send a component or circuit board. Instead,
send the complete product, together with a copy of the maintenance report.
Maintenance Precautions
If you need technical or operation help, please clearly, simply and completely describe the
related problems. It is helpful for us if you provide following information:
；
Device model and serial number;
Problem or fault;
Other equipment related to this problem in the radio station.
Note: Do not use peeling news paper to pack the device. Improper packaging or
transportation may cause more damage.
Notes
Take note of procurement date, serial number and you vendor;
Keep any written maintenance logs about this product for future use;
During the warranty period, please provide the sales ticket indicating the selling date or a
copy of procurement certificate.
Servicing and Cleaning
To make full use of the mobile transceiver, reduce fault and extend its service life, please
keep good understanding of some maintenance routines to provide better cleaning and
servicing operations on this product.
Cleaning
Regularly clean the mobile transceiver: use a clean and dry soft cloth or small brush to
wipe off dust adhered to the mobile transceiver.
After some period of usage, keys and enclosure of the mobile transceiver is prone to be
dirty, please use neutral detergent (rather than corrosive chemicals) and wet cloth to clean the
enclosure. Use chemicals such as detergents, alcohol, spray or oil preparations may damage
the surface and enclosure of the mobile transceiver. After cleaning, check that the mobile
transceiver is fully dried before use.
Servicing
Please keep the installation place of the mobile transceiver well-ventilated to ensure
good heat dissipation and normal operation.
Do not stack other objects around the mobile transceiver to ensure effective heat
dissipation.
Do not expose the mobile transceiver to rain in a rainy day to ensure normal operation.
Simple Trouble shooting
Problems described in this table are generally faults encountered during operation, rather

18
than faults caused by the circuit.
Problem Possible Cause Corrective Action
When 13.8 V DC power is
connected and the ON key
is pressed, the machine is
not started and the screen
displays nothing.
1. The power cord is
reversed;
2. The power cord fuse is
burned.
1. Properly connect the
supplied DC power cord
2. Check the reason why
the fuse is burned, and after
the problem is addressed,
install a new fuse with the
same rating.
After the machine is
powered on, you will be
alerted with an alarm sound.
1. The frequency is
unlocked;
2. The power voltage is too
high or too low.
1. Ask your local authorized
BEIFENG vendor or
BEIFENG service center for
maintenance and
calibration.
2. Adjust the supply voltage,
and keep the machine work
within DC 13.8V (±15%).
After the machine is
powered on, TX is
impossible even if the PTT
is pressed.
The microphone is not fully
inserted into the machine.
Turn the power off, and then
reconnect the microphone
plug, till it is locked into the
locating tag.
"Data reading failed" occurs
when programming. 1. Check that the programming cable is
properly connected to PC;
When batch processing is
done in PC;
3. The PTT key is triggered
when programming.
1. Check connections.
2. Exit other running
software.
3. Do not operate the
machine when
programming.
QT Standard Frequency Table
QT
No.
Frequency
[Hz]
QT
No. Frequency [Hz] QT No. Frequency [Hz] QT No. Frequency [Hz]
1 67.0 11 94.8 21 131.8 31 186.2
2 69.3 12 97.4 22 136.5 32 192.8
3 71.9 13 100.0 23 141.3 33 203.5
4 74.4 14 103.5 24 146.2 34 210.7
5 77.0 15 107.2 25 151.4 35 218.1
6 79.7 16 110.9 26 156.7 36 225.7
7 82.5 17 114.8 27 162.2 37 233.6
8 85.4 18 118.8 28 167.9 38 241.8
9 88.5 19 123.0 29 173.8 39 250.3
10 91.5 20 127.3 30 179.9

19
DQT Standard Code Table
023 071 134 223 306 411 503 631 734
025 072 143 226 311 412 506 632 743
026 073 152 243 315 413 516 654 754
031 074 155 244 331 423 532 662
032 114 156 245 343 431 546 664
043 115 162 251 346 432 565 703
047 116 165 261 351 445 606 712
051 125 172 263 364 464 612 723
054 131 174 265 365 465 624 731
065 132 205 271 371 466 627 732
Technical Indicators
General
Frequency range UHF:400-470MHz
Number of
channels 128
Channel spacing 25 KHz /12.5 KHz
Working
temperature -20℃～+60℃
Antenna
impedance 50Ω
Operating voltage DC 13.8V (±15%)
Operating current
TX <8A, RX <1A, wait <0.4A
Frequency stability
≤±2.5 ppm
Appearance
dimension 158（L）*152(W)*50(H)mm
Weight 1.04Kg
For Tx
RF Output power H：25W M：15W L：5W
Modulation Mode 16K0F3E(wide)/8K50F3E(narrow)
Clutter and
harmonic ≤-36dBm
FM noise ≤-40dB
Audio distortion ≤5%
Adjoining channel
power ≥65 dB(wide)/60 dB(narrow)

20
Modulation limit ≤5KHz(wide)/2.5KHz(narrow)
For Rx
Sensitivity ≤0.2μV(wide)/ 0.25μV (narrow)
Adjacent Channel
Selectivity
≥60dB(wide)/ 55dB (narrow)
Intermodulation
immunity
≥60dB(wide)/ 55dB (narrow)
Spurious
immunity
≥60dB(wide)/ 55dB (narrow)
SNR (Signal to
Noise Ratio)
≥45dB(wide)/ 40dB (narrow)
Audio output power 2W (built in) 4 W (external)
Audio distortion ≤5%
Declaration
This manual is deemed to be compiled, to be accurate and complete. For any doubt,
please contact us. We will give you professional answers. As radio communication
technologies develop rapidly, BEIFENG reserves the right to change product design and
specification without prior notice.