BK Technologies DPHX51 VHF Transceiver User Manual DPH Owners Manual

42 BK Radio

NOTES:

DPH Owner’s Manual 3

TABLE OF CONTENTS

Features..................................................................... Inside Front Cover

Introduction ............................................................................................ 4

FCC Requirements ................................................................................ 4

Safety Precautions................................................................................. 4

RF Energy Exposure Awareness And Control Information ................... 5

Radio Controls ....................................................................................... 8

Basic Operation ..................................................................................... 9

Channel Guard Operation.................................................................... 10

Mixed Mode Operation......................................................................... 12

Channel Groups................................................................................... 13

Programmable Top Switches/ Function Menu..................................... 15

Scan Operation .................................................................................... 16

Priority Scan......................................................................................... 19

Unit-To-Unit Call .................................................................................. 25

Emergency Call.................................................................................... 30

User Selected Channel Guard............................................................. 30

Other Operational Features ................................................................. 31

Alphanumeric Display .......................................................................... 35

Cloning Procedure ............................................................................... 37

Battery Installation And Removal......................................................... 40

Definitions And Acronyms.................................................................... 41

Service ....................................................................... Inside Back Cover

4 BK Radio

INTRODUCTION

CONGRATULATIONS, you now own a BK Radio DPH APCO Project

25 digital radio. To meet backwards compatibility as defined by the

APCO Project 25 standard, the DPH digital portable radio provides

users the ability to interoperate with narrow or wide band analog

channels as well as digital systems. Please take a moment to read the

information in this manual so you can get optimum performance from

your new radio.

FCC REQUIREMENTS

Your radio must be properly licensed by the Federal Communications

Commission prior to use. Your BK Radio dealer can assist you in

meeting these requirements. Your dealer will program each radio with

your authorized frequencies, signaling codes, etc., and will be there to

meet your communications needs as your system expands.

SAFETY PRECAUTIONS

• Do not operate the transmitter in close proximity

to blasting caps.

• Do not operate the radio in an explosive

atmosphere (petroleum fuels, solvents, dust,

etc.) unless your radio is an intrinsically safe

model designed for such use.

DPH Owner’s Manual 41

DEFINITIONS AND ACRONYMS

ANI Automatic Numeric Identification

CG Channel Guard

CLR Clear

Cloning The process of copying data from one radio, called

“master,” to other radios, called “slaves” or “clones.”

Channel

Guard

A sub-audible tone, a code (analog) or a Network

Access Code (digital) for selective listening and

receiving.

Detent The click/hesitation you feel as you turn a knob from

one position to another.

DTMF Dual Tone Multiple Frequency

DTMF Tones Tones that sound like those used by a standard

push-button telephone.

ENT Enter

FCN Function

GRP Group Label

ID Digital reception/transmission – ‘It’s Digital.”

Individual

Personality

The information programmed with a PC both a

global and by-channel basis that tells the radio

exactly how to operate.

LCD Liquid Crystal Display

Mixed Mode Allows Analog and Digital operation on the same

channel.

NAC Network Access Code for digital channel.

PR Priority Channel

PRG Program

PRI Priority

PTT Push To Talk

RTA Repeater Talk Around

RTX Channel Ready to Transmit Channel

RX Receive

SCN Scan

SQ Squelch

Squelch A control that eliminates background noise.

Talkback Scan When scanning, if a signal is present, the scan will

stop and you will hear the signal. If you then push

the PTT switch to talk back to the person, you are in

Talkback Scan Mode.

TGID Talk Group ID

Time-Out-Timer A feature that limits the duration of calls.

TX Transmit

40 BK Radio

SCAN LIST CLONING

When a master radio downloads to a clone,

the Scan List is also transferred. See page 18

in this manual for selecting the Scan List.

BATTERY INSTALLATION AND REMOVAL

BK Radio battery packs are available in a variety of sizes and types for

special applications. Rechargeable battery packs can be charged

separately or while attached to a radio.

INSTALLING THE BATTERY

1. Locate the center hub on the radio base

and place it in the recess of the battery

pack.

2. Position the battery pack at the 30° offset,

seating the two metal studs in their recess.

3. Apply upward pressure to the pack while

twisting the pack to its original position.

The metal tab will click, locking the pack in

position.

REMOVING THE BATTERY

1. Turn the radio off.

2. Push up the metal tab on the side of the

case while twisting the battery pack

approximately 30°.

3. Remove battery pack from the radio.

NOTE: Periodically check the contacts

on the battery pack for dirt that

could prevent a good electrical

contact with the charging base.

WARNING: Explosion Hazard

Do not dispose a battery pack into a fire.

An explosion may occur.

DPH Owner’s Manual 5

RF ENERGY EXPOSURE AWARENESS AND

CONTROL INFORMATION, AND OPERATIONAL

INSTRUCTIONS FOR FCC OCCUPATIONAL USE

REQUIREMENTS

BEFORE USING YOUR PORTABLE 2-WAY RADIO,

READ THIS IMPORTANT RF ENERGY AWARENESS AND

CONTROL INFORMATION AND

OPERATIONAL INSTRUCTIONS TO ENSURE COMPLIANCE WITH

THE FCC’S RF EXPOSURE GUIDELINES.

NOTICE: This radio is intended for use in occupational/controlled

conditions, where users have full knowledge of their exposure

and can exercise control over their exposure to meet FCC limits.

This radio device is NOT authorized for general population,

consumer, or any other use.

This 2-way radio uses electromagnetic energy in the radio frequency

(RF) spectrum to provide communications between two or more users

over a distance. It uses radio frequency (RF) energy or radio waves to

send and receive calls. RF energy is one form of electromagnetic

energy; other forms include electric power, radar, sunlight and x-rays.

RF energy, however, should not be confused with these other forms of

electromagnetic energy, which when used improperly can cause

biological damage. Very high levels of x-rays, for example, can

damage tissues and genetic material. The energy levels associated

with radio waves from portable 2-way radios, when properly used, are

not great enough to cause biological damage.

Experts in science, engineering, medicine, health and industry work

with organizations to develop standards for exposure to RF energy.

These standards provide recommended levels of RF exposure for both

workers and the general public. These recommended RF exposure

levels include substantial margins of protection. All 2-way radios

marketed in North America are designed, manufactured and tested to

ensure they meet government established RF exposure levels. In

addition, manufacturers also recommend specific operating

instructions to users of 2-way radios.

These instructions are important because they inform users about RF

energy exposure and provide simple procedures on how to control it.

Please refer to the following WEBSITES for more information on what

RF energy exposure is and how to control your exposure to assure

compliance with established RF exposure limits.

http://www.fcc.gov/oet/rfsafety/rf-faqs.html

http://www.osha.gov/SLTC/radiofrequencyradiation/index.html

6 BK Radio

FEDERAL COMMUNICATIONS COMMISSION

REGULATIONS

The FCC rules require manufacturers to comply with the FCC RF

energy exposure limits for portable 2-way radios before they can be

marketed in the U.S. When 2-way radios are used as a consequence

of employment, the FCC requires users to be fully aware of and able to

control their exposure to meet occupational requirements. Exposure

awareness can be facilitated by the use of a product label directing

users to specific user awareness information. Your BK Radio 2-way

radio has a RF exposure product label. Also, your BK Radio owner’s

and service manuals include information and operating instructions

required to control your RF exposure and to satisfy compliance

requirements.

COMPLIANCE WITH RF EXPOSURE STANDARDS

Your BK Radio 2-way radio is designed and tested to comply with a

number of national and international standards and guidelines (listed

below) for human exposure to radio frequency electromagnetic energy.

This radio complies with the IEEE and ICNIRP exposure limits for

occupational/controlled RF exposure environment at operating duty

factors of up to 50% transmitting and is authorized by the FCC for

occupational use only. In terms of measuring RF energy for

compliance with the FCC exposure guidelines, your radio radiates

measurable RF energy only while it is transmitting (during talking), not

when it is receiving (listening) or in Standby Mode. Note: The approved

batteries supplied with this radio are rated for a 5-5-90 duty factor (5%

talk-5% listen - 90% standby), even though this radio complies with the

FCC occupational RF exposure limits and may operate at duty factors

of up to 50% talk.

Your BK Radio 2-way 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, 2.1091 and

2.1093

• American National Standards Institute (ANSI) / Institute of

Electrical and Electronic Engineers (IEEE) C95. 1-1992

• Institute of Electrical and Electronic Engineers (IEEE) C95.1-

1999 Edition

INDUSTRY CANADA COMPLIANCE

This Class B digital apparatus complies with Canadian ICES-003.

Cet appareil numerique de la classe B est conforme à la norme NMB-

003 Canada.

DPH Owner’s Manual 39

SPECIAL CLONING INSTRUCTIONS

You can change Channel 0 values on the master radio, hold them in a

temporary memory, and download them to the clone without actually

entering them into the permanent memory of the master. This is

convenient if sequential identification numbers are used to identify a

series of portables in a radio system. Assuming that the frequencies,

Channel Guard values, and other CH 0 values are common for all

radios in the system, but that the radio identification number should be

unique to each radio, the following method can be used to clone

additional radios for the system:

1. Program the master with all frequencies,

Channel Guard values, and Channel 0

values that will be common to all radios.

2. Advance the display to show the ID

number of the master (for example 100).

3. Press [CLR]; press 1, 2, and 5. The ID

number 125 is now only in temporary

memory.

4. Press [*], connect the cloning cable to the

clone radio, and download by pressing

[FCN]. ID number 125 is now stored in the

permanent memory of the clone.

5. After downloading, press [CLR] on the

Master radio. Disconnect the clone. The

master radio display will show that 125 is

still being held in the temporary memory of

the master.

6. Press [PRI]. This will increment the ID

number one digit to 126.

NOTE: Any new number can be entered

at this point by pressing [CLR]

and using the keypad to enter the

new number.

7. Press [*]. Connect the cloning cable to

the next clone and download by pressing

[FCN].

Any number of radios can be coded with

different or sequential ID numbers using

this technique. The ID number in the

permanent memory of the master will

remain unchanged at 100.

PRG ID

1

2

5

PRG ID

12

5

PRG ID

126

1 2 3

4 5 6

7 8 9

0

*

#

CLR

FCN

PRI

ENT

38 BK Radio

8. Turn on the clone and set it to the desired

channel group.

9. Press the [*] key on the master radio

keypad. The display will flash PROG

signifying that the radio is ready to

download its program to the clone.

10. Press the [FCN] key on the master radio

keypad. The program in the master will

then be downloaded to the clone.

11. If the download was successful, the

display on the master will resume flashing

PROG.

• To clone another channel group, turn

off both radios and go back to Step 3

on the previous page, changing the

channel group as required.

• If cloning is finished, turn off the clone

and disconnect the cloning cable.

Normal radio operation will occur

when you turn on the clone.

12. If the download was not successful, the

master will display FAIL and multiple

beeps will follow. Failure of downloading

can be due to:

• Improper connection

• Failure to turn on the clone

• Setting the clone in Programming

Mode

• Group ‘locked’ by PC Programming

NOTE: To stop the FAIL Mode, press

[CLR], turn off both radios, and

try again, starting with Step 1 on

the previous page.

PRG

FAI

L

PRG

PROG

1

2

3

4

5

6

7

8

9

0

*

#

CLR

FCN

PRI

ENT

1

2

3

4

5

6

7

8

9

0

*

#

CLR

FCN

PRI

ENT

DPH Owner’s Manual 7

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 must 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 BK Radio

approved clip, holder, holster, case, or body harness for this product.

Using approved body-worn accessories is important because the use

of BK Radio 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 one inch (2.5 cm) 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 BK Radio approved supplied or replacement antennas,

batteries, and accessories. Use of non-BK Radio approved

antennas, batteries, and accessories may exceed the FCC RF

exposure guidelines.

• For a list of BK Radio approved accessories visit the following

website : http://www.relm.com.

CONTACT INFORMATION

For additional information on exposure requirements or other

information, visit website http://www.relm.com.

8 BK Radio

RADIO CONTROLS

BK RADIO

1

2 3

4

5 6

7

8 9

0

*

#

CLR

FCN

PRI

ENT

PRIORITY

BUSY CHANNEL

LOW BATTERY

INDICATOR

TRANSMIT

INDICATOR

ANTENNA

HI/LO

TRANSMIT

POWER

SCAN

PRIORITY

ANTENNA

ACCESSORY

MOUNT

EARPHONE

PTT

(PUSH TO TALK)

SPEAKER

MICROPHONE

LCD DISPLAY

CHANNEL

SELECT

ON/OFF

VOLUME

SQUELCH

CODE GUARD

G

R

P

PRG

TX

RX SCN ID CG

DPH RADIO WITH

KEYBOARD/DISPLAY

COVERED OR

NOT INSTALLED

(REDUCED VIEW)

BK RADIO

CG- OFF-

SQ VOL

161

2

3

4

5

67891011

12

13

14

15

A

B

C

KEYBOARD

DPH RADIO WITH

KEYPAD/DISPLAY

COVERED

(REDUCED VIEW)

R

X

SCN

TX

PRG ID CG

P

R

G

.

R

X

SCN

TX

PRG ID CG

P

R

G

.

ALPHANUMERIC DISPLAY

SQUELCH

CHANNEL GUARD

TX

DIGITAL

DPH Owner’s Manual 37

Master Clone

Master

Switch

CLONING PROCEDURE

Any “master” radio (a DPH with the desired radio frequencies and

settings) is capable of transferring its program to another DPH or

“slave” radio. The radio receiving the program is also referred to as the

“clone.” The LAA0700 cloning cable will be required in the following

procedure. Contact your BK Radio dealer for information on cloning

between DPH radios and other BK Radio products.

NOTE: some groups may be “locked” by PC programming to prevent

them from being overwritten. Only “unlocked” groups will

accept incoming clones.

1. Make sure the battery packs for both

radios are charged.

2. Attach the master switch end of the

cloning cable to the side connector of the

master radio.

NOTE: One plug of the cloning cable

has a push-button master

switch. This plug must be

attached to the master radio.

3. Turn on the master radio.

4. Select the group to be cloned from the

master radio.

5. Put the master radio in Programming

Mode by pressing and holding the master

switch then pressing and holding the

[FCN] key until the display shows ‘- - - ID.’

Enter the password of the selected group.

The display shows ‘PRG CH 00.’

6. Review the values programmed in the

radio by pressing the [FCN] or [ENT] key

at each CHXX prompt. Any required

changes must be made now.

7. Connect the other plug of the cable to the

side connector of the radio you want to

clone.

PRG

C

H

0

36 BK Radio

CHANNEL LABELS

You can program the radio with a label for

each of the 25 channel groups and a label for

each of the 16 channels within each group.

To display the channel number associated

with a channel label:

1. Press the [#] key to display the group

number.

2. Press the [#] key again to display the

channel number.

3. Press and hold the [#] key to display the

channel label.

4. Press [ENT].

Each label can include up to eight characters,

with decimal points available between

characters. Characters can include A–Z, 0–9,

-, *, $, /, +, %, \, |, _, <, >, h, or a blank space.

GROUP LABELS

The display can show group labels in addition

to group numbers.

To display a group label, turn scanning

functions off, then:

1. Press the [#] key on the keypad to display

the group number.

2. Press and hold the [#] key to display the

group label.

3. Press the [ENT] key or wait for about

5 seconds to revert to normal radio

operation.

F

I

R

E

NE

T

Channel Label

C

H

1

2

Channel Number

1 2 3

4 5 6

7 8 9

0

* # CLR

FCN

PRI

ENT

1 2 3

4 5 6

7 8 9

0

* # CLR

FCN

PRI

ENT

DPH Owner’s Manual 9

BASIC OPERATION

RECEIVE 1. Turn power on by turning the Volume knob

clockwise. A beep sounds, indicating the

radio is operational. The LCD display, if

installed, shows the current channel.

2. Select a channel by turning the 16-position

Channel Selector knob.

3. Adjust squelch and volume by turning the

Squelch knob clockwise until you hear

noise. Set the volume to a comfortable level.

Then turn the Squelch knob

counterclockwise until the noise stops. This

is called the Threshold Squelch setting.

Turning the Squelch knob fully counterclockwise

past the detent places the receiver in Channel

Guard. A message will be heard only when the

proper Channel Guard value is received.

TRANSMIT 1. Press the PTT (Push-To-Talk) switch. When

the transmitter is on, the red Transmit

Indicator glows and TX appears in the

display.

2. Talk in a normal voice with the microphone

one to two inches from your mouth.

3. Release the PTT switch to stop transmitting.

If the Transmit Indicator does not glow when you

press the PTT switch, the battery pack may

need to be charged. If so, the display will

indicate LOBATT, and the yellow Low-Battery

Indicator will flash. If the Transmit Indicator does

not glow and a tone sounds, you are on a

receive-only channel or the channel is busy (if

Busy Channel lockout is enabled). Select an

authorized transmit channel.

If the length of your message exceeds the

preset Time-Out-Timer setting, the transmitter

automatically shuts off and a tone sounds. To

continue transmission, release the PTT switch,

and then press it again and continue talking.

Microphone

PTT

10 BK Radio

CHANNEL GUARD OPERATION

ANALOG SQUELCH CONTROL

Sub-audible signaling (CTCSS/CDCSS) is used

to allow a group of radios to be selectively called

in a system. Programming the receive guard

equal to zero allows for Carrier Squelch

operation, where the radio will unmute whenever

a carrier is detected.

APCO PROJECT 25 SQUELCH CONTROL

Network Access Codes (NACs) provide the

digital equivalent of analog sub-audible signaling

(CTCSS/CDCSS) allowing a group of radios to

be selectively called within a system.

Users in the same area (using the same NAC)

can be further divided into Talk Groups, with

each group having its own Talk Group ID (TGID).

Group Calls are made by designating both the

users’ NAC and TGID.

Each radio also has an individual P25 unit ID. A

Unit-to-Unit call contains the addressee’s NAC,

and uses the addressee’s P25 unit ID instead of

the TGID.

When operating in Digital Mode, each channel

can be programmed to use either Normal

squelch or Selective squelch.

1. Normal squelch is used to mimic analog

operation. Signals are only qualified with the

programmed NAC. TGIDs and P25 Unit IDs

are ignored. Each digital channel is

programmed with a receive NAC and a

transmit NAC. When an incoming signal’s

NAC matches the channel’s programmed

receive NAC, the radio unmutes. The default

NAC is 659 ($293 hex). The digital

equivalent of carrier squelch is achieved by

programming the receive NAC = 3966($F7E

hex) the radio will unmute when a digital

signal with any NAC is detected. The 3966

($F7E hex) NAC is reserved for receivers

and is not allowed as a transmit NAC.

DPH Owner’s Manual 35

P

R

G

.

R

X

SCN ID CG

ALPHANUMERIC DISPLAY

TX

PRG

ALPHANUMERIC DISPLAY

DPH radios have a slide-out keypad/display

cover. To remove or install the cover, turn off

the radio and remove the battery (see Battery

Installation and Removal, page 40).

The Alphanumeric Display can be

programmed to operate in Numeric Mode,

displaying channel numbers instead of labels.

Display annunciators indicate the following

information:

Alphanumeric Indication

PR -Priority Channel

PRG -Programming Mode (includes PR)

TX -Transmit

RX -Receive

SCN -Scan List Channel

-Flashing SCN indicates scanning

in progress and RX SCN indicates

receiving on a scanned channel.

ID -Digital reception/transmission –

‘It’s Digital’

-Programming Mode – Automatic

Numeric Identification (ANI)

CG -User Channel Guard Active

GRP -Group Label

-Individual Call

-Flashing phone icon indicates

missed call.

DPH Series portable radios with alphanumeric

displays can be programmed with the

following features:

DISPLAY BACKLIGHTING

The DPH radios can be programmed by your

dealer to backlight the display when a signal is

received or when a key is pressed. The time

duration of the backlighting can also be

programmed.

34 BK Radio

BUSY CHANNEL LOCKOUT

The Busy Channel Lockout feature applies

only to those channels programmed with a

receive Channel Guard value. When carrier

activity is detected on the channel selected,

the radio checks the receive Channel Guard

value. If the proper Channel Guard value is

present, the radio can transmit on that

channel, even if the Squelch knob is in the

Channel Guard position.

If the radio detects an incorrect value or carrier

activity only, the transmitter is disabled. If an

attempt is made to transmit, an alert tone will

be generated and the display will show the

word BUSY until the channel becomes

available or the PTT switch is released,

whether the Squelch knob is in or out of the

Channel Guard detent.

Channels not programmed with a receive

Channel Guard value can be used to transmit

regardless of carrier activity.

BUSY CHANNEL LOCKOUT OVERRIDE

This mode operates in the same manner as

Busy Channel Lockout except that the user

can override and transmit by turning the

Squelch knob off the Channel Guard detent.

The transmitter is locked out only if the

Squelch knob is set to the Channel Guard

detent.

BUS

Y

DPH Owner’s Manual 11

2. Selective squelch is used for processing

‘Group Calls’ and ‘Unit-to-Unit Calls’. TGIDs

are assigned on a per-channel basis. Users

can be separated into Talk Groups with each

group having its own TGID. Then, on

channels programmed for Selective squelch,

the incoming signal’s NAC and TGID must

match the channels programmed receive

NAC and TGID for the radio to unmute. The

default TGID is 1. The TGID value 65535

($FFFF hex) is used to effect an “All Call”. If

the radio receives a signal with a matching

NAC and the TGID = 65535 ($FFFF hex), it

will unmute. Also, if the radio’s programmed

TGID is 65535 ($FFFF hex), it will open on

any signal with a matching NAC, ignoring the

incoming TGID. A TGID = 0 means “no

one”. If the radio is programmed with the

TGID = 0, it will accept incoming group calls

containing the “All Call” TGID, and correctly

addressed Unit-to-Unit calls.

CHANNEL GUARD RECEIVE

1. Turn power on by turning the Volume knob

clockwise.

2. Select a Channel Guard channel by turning

the Channel Selector knob.

3. Adjust volume by turning the Squelch knob

clockwise until a noise is heard. Set the

volume to a comfortable level.

4. Set Channel Guard Mode by turning the

Squelch knob off (counterclockwise) into the

Channel Guard position. A message will be

heard only when the proper Channel Guard

value is received.

12 BK Radio

CHANNEL GUARD TRANSMIT

1. Turn the Squelch knob on (clockwise) and

monitor the Channel Guard channel before

transmitting, or, if Busy Channel operation is

enabled, check the yellow LED.

NOTE: Do not transmit if the channel is

busy.

2. Press the PTT switch. When the transmitter

is on, the red Transmit Indicator glows and

TX appears in the display.

3. If monitoring the channel, reset the squelch

knob to the Channel Guard position to

receive only the messages with the proper

Channel Guard value. During extended

transmissions, the squelch can be left open

until the exchange has ended.

MIXED MODE OPERATION

The receiver and transmitter are capable of

operating in analog wide-band (25 kHz

channel spacing), analog narrow-band (12.5

kHz channel spacing) and APCO Project 25

Digital Mode.

Each channel’s Receive and Transmit Mode

can be set independently as follows:

Mode RX TX

Analog Receive qualified

analog signals

only

Transmit analog

signals only

Digital Receive qualified

digital signals

only

Transmit digital

signals only

Mixed Automatically

receive qualified

analog or digital

signals

Transmit analog or

digital signal,

depending on the

status of ‘TX

Digital’ soft switch.

Digital receptions and transmissions will be

indicated by illuminating the ‘ID’ annunciator in

addition to the ‘RX’ or ‘TX’ annunciator.

Analog

Operation

RX

C

H

1

2

TX

C

H

1

2

Digital

Operation

RX ID

C

H

1

2

TX ID

C

H

1

2

Busy Channel

Indicato

r

DPH Owner’s Manual 33

TIME-OUT-TIMER

The transmit Time-Out-Timer limits the

duration of calls and guards against

accidentally locking on the transmitter and

tying up the radio system. Your dealer can

program the duration of the Time-Out-Timer

(15–225 seconds, or disabled).

BUSY CHANNEL

If the radio has been programmed for Busy

Channel operation, it will operate in one of the

following three Modes:

• Busy Channel Indication

• Busy Channel Lockout

• Busy Channel Lockout Override

BUSY CHANNEL INDICATION

The yellow Busy Channel Indicator glows if

there is carrier activity on the selected

channel. If the selected channel is a Channel

Guard channel and the proper Channel Guard

value is not detected, the Busy Channel

Indicator remains on for the duration of the

carrier activity and no message is heard.

During Scan and Priority Scan operation, the

Busy Channel Indicator glows when activity is

detected on any channel on the Scan List.

When scanning or priority scanning Channel

Guard channels with the Squelch knob in the

Channel Guard position and activity has been

detected, the Busy Channel Indicator glows

for the time period necessary to determine if

the proper Channel Guard value has been

received. This will cause the Busy Channel

Indicator to flash at various rates.

32 BK Radio

are received, you can ask your dealer to

increase the scan delay time (0–7.5 seconds).

This timer is also used to allow for Talkback

Scan, Mixed Mode Talkback, and Unit-To-Unit

Callback.

HI/LO POWER

Each channel in the radio can be individually

programmed to always transmit in Low-Power

Mode, regardless of the position of the radio's

top switch (or keypad [FCN] menu setting). If

the programming for the channel allows high-

power transmissions, the power level can be

selected with a top switch or the keypad

menu.

DTMF ENCODING (Analog Mode Only)

Keypad-equipped radios can be programmed

to enable DTMF (Dual Tone Multiple

Frequency) encoding. To send DTMF tones

(similar to the tones used by a standard push-

button telephone):

1. Press and hold the PTT switch.

2. Press any of the keys on the keypad.

You will hear a sidetone.

The FCN, PRI, ENT, and CLR keys respond

as DTMF tones A, B, C, and D, respectively.

ANI ENCODING (Analog Mode Only)

ANI encoding (Automatic Numeric

Identification), if enabled, transmits a

sequence of DTMF tones each time you press

the PTT switch. You will hear a sidetone. Your

dealer can program the ANI number to be

sent.

If DTMF and ANI are both enabled, the ANI

tone sequence is transmitted only after the

[ENT] key is pressed while the PTT switch is

activated. You will hear a sidetone.

1 2 3

4 5 6

7 8 9

0

* # CLR

FCN

PRI

ENT

1 2

3

4

5

6

7

8

9

0

*

#

CLR

FCN

PRI

ENT

DPH Owner’s Manual 13

MIXED MODE TALKBACK

If Mixed Mode Talkback is enabled,

transmissions initiated while hold time remains

will be in the same mode as the received

signal, if the signal was received on the Ready

to Transmit (RTX) channel. Depending on

programming, the RTX channel can be the

main channel, a held scan or priority channel if

Talkback Scan is enabled, or the Priority 1

channel if TX on PR1 is enabled. TX Mode on

the RTX channel must be set to MIXED.

While hold time after a reception remains,

transmissions will be in the same mode as the

received signal, regardless of the status of the

‘TX Digital’ soft switch. As in Talkback Scan,

the RTX channel and receive annunciators will

be displayed for the duration of the timer.

The talkback timer can be cleared by making

the held channel invalid. For instance, if a

scan channel is being held, turn scan off.

CHANNEL GROUPS

Radios are separated into groups of 16

channels each. Each group of 16 channels

can be programmed to have an "individual

personality" with its own set of operational

features.

SELECT A GROUP/CHANNEL

The Group/Channel Selector knob can be

programmed by your dealer as a Channel

Selector, a Group Selector, or a Custom

Group/Channel Selector.

CHANNEL SELECTOR. Knob positions

1–16 select channels in the group selected by

the keypad:

1. Press the [#] key on the keypad to display

the current group number.

RX

C

H

1

2

Press PTT

During Hold Time

(while the ‘RX’

annunciator is lit)

GR

P

0

1

Group Number

161

2

3

4

5

678910

11

12

13

14

15

1 2 3

4 5 6

7 8 9

0

* # CLR

FCN

PRI

ENT

14 BK Radio

2. Press a number key for the new group

number. Only valid group entries will be

accepted.

When changing groups, invalid entries will

not be accepted, and the radio remains in

the previously selected group.

3. Press the [ENT] key or wait 5 seconds.

The radio returns to normal operation for

the new group, and the selected channel

is displayed. All selected scanning and

priority functions affect only the channels

in the group you are operating in.

GROUP SELECTOR. Knob positions

1–16 select groups 1–16:

1. Press [#] twice to select a channel.

2. Press a number key for the new channel

number.

3. Press the [ENT] key or wait 5 seconds.

The radio returns to normal operation for

the new channel, and the selected

channel is displayed.

CUSTOM SELECTOR. Your dealer will

provide you with the pre-programmed

Group/Channel combinations for your radio.

If a knob position is programmed to allow

selection of the group and/or channel with the

keypad:

1. Press [#].

2. Press the number of the group you want

to change to.

3. Press [#] again.

4. Press the number of the channel you want

to change to.

5. Press the [ENT] key or wait 5 seconds.

The radio returns to normal operation for

the new channel, and the selected

channel is displayed.

1 2 3

4 5 6

7 8 9

0

* # CLR

FCN

PRI

ENT

DPH Owner’s Manual 31

CG

LABE

L

5

Use Channel 9

Channel Guard Values

For Channel 5

For example, to use the Channel Guard

values of Channel 9 with the frequencies of

Channel 5:

1. Slide Switches B and C down.

2. Turn the channel selector knob to Channel

5.

3. Press the [9] key on the keypad. The

display shows CG.

The radio will now operate on the

frequencies of Channel 5 with Channel 9

Channel Guard values. The display shows

the Channel Guard channel (9), and then

the selected channel (5).

4. Press the [#] key to display the Channel

Guard channel briefly. The display shows

the group number, followed by the

Channel Guard channel, and then the

selected channel.

5. Press the [0] key to reset all values to the

original programming, or press different

number keys (1–16) to select a different

set of Channel Guard values.

NOTE: During Scan or Priority Scan, the

receiver does not use the user-

selected Channel Guard values.

However, user-selected Channel

Guard values are used by the

transmitter in Scan Mode.

OTHER OPERATIONAL FEATURES

The BK Radio D Series is based on a microprocessor core that allows

extra features and operational characteristics to be programmed into

the radio. Your dealer can help define the best operational settings for

your system and program them into the radio.

SCAN DELAY

Scan delay lets the radio receive a response

to a transmission before scanning the other

channels for activity. If you find that your

scanner is restarting before message replies

CG

L

A

BE

L

9

Copy Channel Guard

Values from

Channel 9

1

2

3

4

5

6

7

8

9

0

*

# CLR

FCN

PRI

ENT

30 BK Radio

EMERGENCY CALL

Note: Emergency operation only applies to channels

programmed for Digital or Mixed Mode transmissions. If the

channel is programmed for Mixed Mode transmissions, the ‘TX

Digital’ switch must be ON.

To place an emergency group call, press and

hold the emergency button until the radio

beeps and the display flashes. On some

models, the emergency button may be the

[PRI] key. All scanning and priority scanning

functions will be disabled. If the radio is in

Unit-To-Unit Mode, that mode will be exited

and the radio will be placed in Emergency

Mode. Each subsequent press of PTT will

cause the radio to transmit on the knob-

selected channel with the emergency bit set,

indicating an emergency condition. If the

Channel Selector is changed, the Emergency

Mode will follow to the newly selected

channel. Cycle power to return the radio to

normal operation.

On channels programmed for analog

transmissions, and channels programmed for

Mixed Mode transmissions with the ‘TX Digital’

switch OFF, pressing PTT in Emergency

Mode will result in a normal analog

transmission.

USER SELECTED CHANNEL GUARD

When the radio is being programmed with transmit and receive

frequencies for each channel, a receive Channel Guard value and a

transmit Channel Guard value can also be assigned to each channel. If

User Channel Guard Selection is enabled, the Channel Guard values

for any channel can be copied to another channel in the radio. On

channels programmed for Analog operation only, the CTCSS or

CDCSS guard values will be copied. On channels programmed for

Digital operation only, NAC’s only will be copied unless the radio is

programmed to also copy the Talk Group ID (TGID), Mode (Digital,

Analog or Mixed) and Squelch setting (Normal or Selective). On Mixed

Mode channels, Analog or Digital values will be copied as needed.

1

2

3

4

5

6

7

8

9

0

*

#

CLR

FCN

PRI

ENT

LABE

L

DPH Owner’s Manual 15

If the group or channel is locked to a switch

position, pressing [#] will only display the pre-

programmed value. New entries will not be

accepted.

PROGRAMMABLE TOP SWITCHES/

FUNCTION MENU

The following functions can be assigned to the

three top switches or the keypad [FCN] key

menu:

FUNCTION FCN Key Menu Label

Low Power Select LO POR

Channel Scan ChN SCN

Priority Scan PRI SCN

Repeater Talk Around TRN DIR

Group Scan GRP SCN

Transmit Digital TX DIG

Your dealer can also assign more than one

function to the same top switch. For example,

both low-power select and RTA could be

enabled by the same switch.

NOTE: Assume for this Owner’s Manual

that Switch ‘A’ has been

programmed for TX Digital, Switch

‘B’ has been programmed for

Scan, and Switch ‘C’ has been

programmed for Priority Scan.

To access functions on the keypad [FCN] key

menu:

1. Press the [FCN] key to display the

function menu.

2. Repeatedly press [FCN] to step through

the menu.

1 2

3

4

5

6

7

8 9

0

*

#

CLR

FCN

PRI

EN

T

TX

Digital

Scan

Priority

Scan

16 BK Radio

3. Press [PRI] to toggle the function on/off

when the desired menu item is displayed.

When the display flashes, the function is

enabled.

KEYPAD LOCK

To lock/unlock the keypad, press and hold the

[FCN] key.

LOCKOUT EXCEPTIONS:

1. If enabled, a long [PRI] key press will

activate Emergency Mode even when the

keypad is locked.

2. PTT unlocks the keypad during transmit

for DTMF key presses if the radio is

programmed for DTMF operation.

3. The keypad will be automatically unlocked

when Unit-To-Unit Mode is entered by

pressing PTT to respond to a Unit-To-Unit

call, when Unit-To-Unit callback is

enabled. The keypad will be re-locked

when Unit-To-Unit Mode is exited.

SCAN OPERATION

1. Slide Switch B (SCAN) up.

2. Slide Switch C (priority) down.

The display indicates scan operation by

flashing SCN or two flashing dashes at the

right side of the display if Numeric Display

Mode is selected.

Scan operates only while the radio is not

transmitting. The radio checks for signals on

channels in the preset Scan List, as well as

the channel selected by the Channel Selector

knob.

When a signal is detected, scanning stops and

the message is received. The received

channel is shown in place of the transmit

channel.

SCN

LABE

L

3

c

h

1

-

DPH Owner’s Manual 29

1. Press the [#] key to toggle a decimal on or

off to the right of the character in position

7. The decimal moves left with the number

in position 7 as new numbers are entered.

2. Use the following steps to enter a number

in position 8 or characters in positions 1-8:

a. Press the [PRI] key repeatedly to

cycle through characters 0-9, A-Z, -, *,

$, /, +, %, \, |, _, <, >, h, blank, then

back to the start again.

If you pass the desired character,

press the [PRI] key repeatedly until

you return to the start and reach that

character again.

b. Press the [FCN] key to shift the

display left by one position, leaving

position 8 blank.

c. Press the [PRI] key repeatedly to

enter the next character, or press the

[FCN] key a second time to enter a

blank space.

d. To abandon changes, press the [CLR]

key, restoring the original label.

e. Press the [ENT] key to store changes.

PROGRAMMING A NUMERIC ID

Press [ENT] to display the numeric ID. Press

[CLR] then enter the new ID (up to 7 digits).

Press [ENT] to store the new ID. Select a

new ID to be programmed, or press and hold

[ENT] to exit Programming Mode (the PRG

annunciator will be extinguished).

PRG ID

14

5

28 BK Radio

UNIT-TO-UNIT CALLBACK

If Unit-To-Unit callback is enabled, and a Unit-

To-Unit call is received on the Ready-to-

Transmit (RTX) channel, the user may press

PTT before the hold time expires, causing the

radio to enter Unit-To-Unit Mode and transmit

using the received ID as the destination ID. If

the callback timer expires before PTT is

pressed, the radio will return to normal

Operating Mode, but the phone icon will flash

until the [*] key is pressed, bringing up the last

active ID.

To exit Unit-To-Unit Mode, press and hold

the [*] key.

The callback timer can be cleared by making

the held channel invalid. For instance, if a

scan channel is being held, turn scan off.

PROGRAMMING UNIT-TO-UNIT CALL LIST

Press [*] to bring up the last active ID. If the

last active ID was a Call List ID, the ID’s label

will be displayed along with the phone icon.

Otherwise, the ID number will be displayed

along with the phone and ID icon.

Press a number key (0 – 9) to go directly to

the desired Call List ID, or press [PRI]

repeatedly to cycle to the label of the ID to be

re-programmed. Press and hold the [FCN]

key to enter ID Programming Mode (PRG icon

will be illuminated). As in keypad

Programming Mode, normal radio function will

be disabled until ID Programming Mode is

exited.

PROGRAMMING A LABEL

Press the [CLR] key. The display becomes

blank.

Press number keys to enter 0-9 in positions

1-7. The digits start in position 7, then move

left.

1

2

3

4

5

6

7

8

9

0

*

#

CLR

FCN

PRI

ENT

PRG

LABE

L

DPH Owner’s Manual 17

Once the signal ends, the radio continues to

monitor the channel for the preset scan delay

time before it resumes scanning.

SCAN CHANNEL GUARD CHANNELS

1. Slide Switch B (scan) up.

2. Turn the Squelch knob completely

counterclockwise, past the detent, to the

Channel Guard position.

When a signal is detected, scanning stops

while the radio checks for the proper Channel

Guard value. If the signal contains the proper

Channel Guard value, the radio receives the

message. Otherwise, the radio resumes

scanning immediately.

NUISANCE CHANNEL DELETE

If your radio is programmed for Nuisance

Channel Delete and Channel Scan is

assigned to a top switch (Switch B, for

example), a Nuisance Channel can be

temporarily removed from the Scan List by

sliding Switch B (scan) down momentarily and

then back up.

TRANSMIT WITH SCAN ON

When Switch B (scan) is up, the radio

transmits on the channel selected by the

Channel Selector knob unless Talkback Scan

is enabled or Priority Scan is enabled (see

Priority Scan operation).

1. Select a transmit channel by turning the

Channel Selector knob.

2. Press and hold the PTT switch and talk in

a normal voice.

When the PTT switch is released, the radio

continues to monitor the selected channel for

the preset scan delay time before it resumes

scanning.

RX SCN

LABEL

3

18 BK Radio

TALKBACK SCAN

If your radio is programmed for Talkback

Scan, press PTT while a channel is active or

while scan delay time remains. You will be

responding on the transmit frequency of the

received channel.

Talkback Scan will not work if Priority Scan is

also on and your radio is programmed to

always transmit on the Priority 1 channel.

CHANGE THE SCAN LIST

If the radio has not been programmed for

Scan List Lock, the user may add or remove

channels from the Scan List. If user changes

are enabled, follow these steps to change the

Scan List:

1. Slide Switches B (scan) and C (priority)

down.

2. Select a channel to be added or removed

from the Scan List by turning the Channel

Selector knob. If the channel is already on

the Scan List, SCN appears in the display.

3. Press the [ENT] key to add a channel to

the Scan List. A short beep sounds and

SCN appears in the display.

4. Press the [CLR] key to remove a channel

from the Scan List. A short beep sounds

and SCN disappears from the display.

GROUP SCAN

Channels on each “Channel Scan List” in

groups on the “Group Scan List” are scanned

sequentially. The selected group is always

scanned when Group Scan is enabled, even if

that group is not on the Group Scan List.

When Group Scan is enabled, the following

features are disabled:

• Priority Scan

• Dual Priority Scan

• User-Selected Channel Guard

• Nuisance Channel Delete

SCN

LABEL

1

2

1 2

3

4

5

6

7

8

9

0

*

#

CLR

FCN

PRI

ENT

DPH Owner’s Manual 27

INITIATING A UNIT-TO-UNIT CALL

To initiate a Unit-To-Unit call, press the [*] key

to enter Unit-To-Unit Mode. The label of the

last active (called or received) ID will appear

on the display.

If the last active ID was a Call List ID, its label

will be displayed along with the phone icon,

otherwise the numeric ID will be displayed

along with the phone and ID icon. If a label is

displayed, press and hold [#] to view the

corresponding numeric ID.

To place a call to the displayed unit, press

PTT. To choose another unit, use the keypad

to enter the desired call list entry (0 - 9), or

press [PRI] repeatedly to cycle through all call

list entries, or press [#] to manually key in a

new ID (up to 7 digits). To re-select the ‘last

active’ ID, press the [*] key. Once the new

unit ID is selected or entered, press PTT to

place the call.

To exit Unit-To-Unit Mode, press and hold

the [*] key.

RECEIVING A UNIT-TO-UNIT CALL

When a Unit-To-Unit call is received while the

radio is in normal Operating Mode, the radio

will beep twice. The display will show the ID

of the calling unit. If the ID matches one of the

Call List IDs, the associated label will be

displayed along with the RX and phone icons.

Otherwise the numeric ID will be displayed

along with the RX, phone, and ID icons. The

calling unit’s ID will be displayed for the

duration of the reception, and once the signal

goes away, for a programmed hold time.

When the hold time expires, the display will

return to the normal Operating Mode display,

but the phone icon will flash until the [*] key is

pressed, putting the radio in Unit-To-Unit

Mode, displaying the last active ID.

1

2

3

4

5

6

7

8

9

0

*

# CLR

FCN

PRI

ENT

LABE

L

Last Active Was Unit

On Call List

ID

<

Prompt For

Manual ID Entr

y

RX

LABE

L

Incoming Call From

Unit

O

n

Call List

ID

14

5

Last Active Was Unit

Not On Call List

C

H

5

Missed Call

Incoming Call From

Unit Not On Call List

RX ID

14

5

26 BK Radio

If the calling unit is not the same unit

displayed before the call was received, the

calling unit’s ID will be displayed for the

duration of the reception. The previously

displayed ID will remain the default transmit

ID, but the interrupting ID will be captured as

‘last active’.

To speak to the interrupting caller, press [*] to

make the last active ID the new default

transmit ID. When a group call (or, if allowed,

an analog signal) is received, the radio will

display the RTX channel’s label for the

duration of the reception.

If the RTX channel’s Digital Squelch Mode is

set to ‘normal’, the radio performs as when the

Squelch Mode is ‘selective’, except all

individual calls will be received when the

incoming NAC matches the channel’s

programmed receive NAC, not just individual

calls addressed to the unit. Individual calls not

addressed to the unit will be indistinguishable

from group calls. Only the channel label will

be displayed, not the ID of the calling unit.

If Unit-To-Unit Mode is entered when the RTX

channel is programmed for analog-only

transmissions, pressing PTT will cause the

radio to beep until PTT is released. The user

must select a channel capable of digital

transmissions before placing a Unit-To-

Unit call. If the RTX channel is programmed

for Mixed Mode transmit, transmissions will be

made as digital Unit-To-Unit calls while the

radio is in Unit-To-Unit Mode.

Incoming

Group Call

RX ID

C

H

5

RX

C

H

5

Incoming

Analog Call

DPH Owner’s Manual 19

PRIORITY SCAN

Priority Scan enables the radio to receive on

any channel while monitoring for a message

on the designated priority channel(s). The

radio samples each priority channel at a

preset rate (.25-2.0 seconds) regardless of

activity on any other channel. Priority Scan

operates only while the radio is not

transmitting and can be used in combination

with scan operation.

When Switch C (Priority) is up, the display

flashes SCN. If a message is received on a

priority channel, the Priority Indicator lights,

and the radio receiver locks onto that channel

for the duration of the transmission, unless a

higher priority channel interrupts.

Priority Scan can be used in combination with

Channel Guard with:

• Switch C (Priority) up

• The Squelch knob in the Channel Guard

position (fully counterclockwise detent

position) and

• The Priority Channel(s) programmed with

Channel Guard

If a message is received on a priority channel,

the radio receiver locks on to the priority

channel and checks to see if the proper

Channel Guard value is present. If the signal

contains the proper Channel Guard value, the

radio receives the message. Otherwise, the

radio will re-check the channel every 4

seconds, until the activity on the channel

ceases.

DUAL PRIORITY SCAN

In each group, up to two of the 16 channels

can be designated as priority channels.

These two, PR1 and PR2, are periodically

tested for activity, even if a different

transmission is being listened to. Activity on

PR2 preempts activity on any of the non-

PR SCN

LABEL

3

20 BK Radio

priority channels. Receptions on PR1 have

priority over any other channel in the group,

including PR2.

Either priority channel can be programmed as

a fixed channel, tied to the Channel Selector

knob, or programmed OFF. If the radio is

programmed to transmit on the first priority

channel, transmissions will occur on PR1

when operating in Dual Priority Scan Mode.

If PR1 is a fixed channel, and the [PRI] key is

not locked out, the user can move the channel

selector to a new channel and press the [PRI]

key to choose a new PR1 channel.

Dual Priority Scan is automatically disabled

when Group Scan is on.

OLD-STYLE BK PRIORITY SCAN

The radio can be programmed with one of

three Priority Modes: A, B, or C. The table

below shows how the priority channels and

the transmit channels are selected in each

mode.

Mode A Mode B Mode C

Priority Channel Channel Knob Preset Preset

Transmit Channel Channel Knob Channel Knob Priority Channel

DPH Owner’s Manual 25

UNIT-TO-UNIT CALL

P25 Unit IDs allow for Unit-To-Unit calls when

the radio is operating in Digital Mode. To view

the radio’s ID, press and hold the [*] key while

not in Unit-To-Unit Mode. (Unit-To-Unit Mode

is indicated by a phone icon in the upper right

corner of the display). Channels programmed

for analog only operation will not be able to

transmit or receive Unit-To-Unit calls.

UNIT-TO-UNIT MODE

When the radio is in Unit-To-Unit Mode, all

scanning functions will be disabled. The radio

will receive and transmit on the Ready-to-

Transmit (RTX) channel only. Depending on

programming, the RTX channel can be the

main channel, a held scan or priority channel if

Talkback Scan is enabled, or the Priority 1

channel if TX on PR1 is enabled. To alert the

user that the radio is in Unit-To-Unit Mode, a

beep will periodically sound until the unit is

returned to normal Operating Mode.

If the RTX channel’s Digital Squelch Mode is

set to ‘selective’, the radio will accept group

calls, correctly addressed Unit-To-Unit calls,

and if RX Mode is set to mixed, analog

signals.

When a correctly addressed Unit-To-Unit call

is received, the radio will beep twice. If the

calling unit’s ID matches one of the Call List

IDs, the associated label will be displayed

along with the RX and phone icon. Otherwise,

the numeric ID will be displayed along with the

RX, ID, and phone icon.

1

2

3

4

5

6

7

8

9

0

*

#

CLR

FCN

PRI

ENT

Incoming Call From

Unit on Call List

RX

LABE

L

Incoming Call From Unit

Not on Call List

RX ID

14

5

ID

78

5

Radio Unit ID

24 BK Radio

To reply to a message on the priority channel,

press the PTT switch. The radio transmits only

on the priority channel when Switch C

(priority) is up. Once activity has ceased on

the priority channel, the radio returns to scan

operation.

CHANGE THE PRIORITY 1 CHANNEL

The fixed Priority 1 channel can be

permanently set or can be changeable. If the

radio has a changeable priority channel, use

the following steps to make this change:

1. Slide Switches B (scan) and C (priority)

down.

2. Turn the Channel Selector knob to the

channel you want to enter as the new

Priority 1 channel.

3. Press the [PRI] key. A short beep sounds

and PR appears in the display, indicating

that the displayed channel is now the

Priority 1 channel.

NOTE: If the radio is programmed for Dual

Priority operation, only the Priority 1

channel can be changed with the

[PRI] key.

NOTE: A channel can be the priority

channel even if it is on the Scan

List. Due to multiple sampling of the

same channel, however, maximum

performance occurs when the

priority channels are not on the

Scan List.

PR

LABEL

3

1

2

3

4

5

6

7

8

9

0

*

#

CLR

FCN

PRI

ENT

DPH Owner’s Manual 21

Does PR appear

in the display?

No

Priority Mode A

Yes

Turn channel knob

to different channel. Slide Switch C up

Does display show

knob-selected

channel?

No

Does display

change to priority

channel?

Yes

Priority Mode C

Yes

Priority Mode B

WHICH MODE IS INSTALLED?

If the radio has a display and keypad, follow

these steps to determine which Priority Mode

is programmed:

1. Slide Switches B (scan) and C (priority)

down.

2. Turn the Channel Selector knob, stopping

at each channel to view the LCD display.

22 BK Radio

Priority Mode A With Scan

In Priority Mode A, the priority channel is set

by the Channel Selector knob. Priority Mode A

is seldom used by itself because the radio

receives and transmits only on the knob-

selected channel.

When Switches B (scan) and C (priority) are

up, scanning occurs until an active scan

channel is found. The radio receives the

message while continuing to check the priority

channel. The display shows the scan channel.

If the priority channel becomes active during

this message, the Priority Indicator will light.

The radio changes to the priority channel and

holds for the duration of the message. The

display shows the priority channel.

To reply to a message on the priority channel,

press the PTT switch and the radio will

transmit on the priority channel. Once activity

ceases on the priority channel, the radio

returns to scan operation.

Priority Mode B

With Switch C (priority) up and Switch B

(scan) down, the radio can receive on the

knob-selected channel while sampling the

priority channel. If the priority channel

becomes active, the Priority Indicator lights

up. The radio changes to the priority channel

and holds for the duration of the transmission.

To reply to a message on the priority channel,

turn the Channel Selector knob to the priority

channel, and then transmit.

PR RX SCN

LABE

L

1

2

PR RX SCN

LABE

L

3

DPH Owner’s Manual 23

Priority Mode B with Scan

With Switches B (scan) and C (priority) up, the

radio scans until it locks on to an active

channel. The radio continues to sample the

priority channel while listening to the active

scan channel.

If activity occurs on the priority channel, the

radio overrides the active scan channel,

changes to the priority channel, and holds for

the duration of the transmission.

To reply to a message on the priority channel,

turn the Channel Selector knob to the priority

channel, and then transmit. Once activity has

ceased on the priority channel, the radio

returns to scan operation.

Priority Mode C

With Switch C (priority) up and Switch B

(scan) down, the radio samples the fixed

priority channel at the preset rate. If activity

occurs on the priority channel, the radio

changes to the priority channel and holds for

the duration of the transmission.

To reply to a message on the priority channel,

press the PTT switch. The radio transmits only

on the priority channel when Switch C (priority)

is up. Once activity has ceased on the priority

channel, the radio returns to the receive

channel on the Channel Selector knob.

Priority Mode C with Scan

With Switches B (scan) and C (priority) up, the

radio scans until it locks on to an active

channel. The radio continues to sample the

priority channel while listening to the active

channel. If activity occurs on the priority

channel, the radio overrides the active scan

channel, changes to the priority channel, and

holds for the duration of the transmission.

BK Technologies DPHX51 VHF Transceiver User Manual DPH Owners Manual

RELM WIRELESS CORP. - BK RADIO VHF Transceiver DPH Owners Manual

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