BK Radio KNG Series, Service Manual

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BK Radio Page 1-1
seCtion i
General information
1.1 introDUCtion
This manual contains information about the physical, mechanical, and electrical characteristics of the BK
Radio KNG Series APCO Project 25 portable digital radios. KNG Portable radios are available in VHF,
UHF and 800 MHz models.
models frequency range
KNG-P150 136 - 174 MHz
KNG-P400 308 - 470 MHz
KNG-P500 440 - 520 MHz
KNG-P800 763 - 870 MHz
1.2 DesCriPtion
The KNG is a handheld FM transceiver designed for use in domestic and foreign Land Mobile services.
The radio supports standard analog FM and digital C4FM modulation pursuant to TIA-102.BAAD (Project
25 Common Air Interface Description for Conventional Channels) et al. The radio can be configured for
as many as 5000 channels that can be arranged into channel zones. Each channel specifies unique
receive and transmit RF frequencies, sub-audible squelch, digital control parameters, etc.
Top panel controls include on/off/volume, channel rotary selector, a concentric two-position switch, an
orange momentary switch, and two toggle switches with dealer programmable function. The side panel
contains a PTT switch, and two programmable push buttons. Connectors are provided via the side
connector for external antenna, speaker, microphone, programming, and options. Some models include
a front panel LCD display for status information, four programmable push buttons, and a keypad for
tailoring radio operation.
1.3 teCHniCal CHaraCteristiCs
oPerational featUres: Programmable Switches, Per Channel Analog/Digital/Mixed-Mode, RX
and TX Dual Priority Scan, Frequency Display, Transmit Time-Out Timer, User Selectable Scan, Scan
Delay, Busy Channel Indicate / Lockout, Tone Code Guard (CTCSS), DTMF/ANI Encode, Digital Code
Guard (CDCSS), Nuisance Channel Delete, Talkback Scan and User Selectable Code Guard.
CHannels witH VariaBle Zone siZe: ................ 5000
oPeratinG VoltaGe:
............................................... 10.8 VDC Nominal
PHYsiCal Dimensions: ............................................ Weight: 9 oz. (15 oz. with battery)
Width: 2.5 in. (63.5 millimeters)
Depth: 1.8 in. (45.7 mm.)
Height: 5.5 in. (139.7 mm.)
CHannel sPaCinG: .................................................... 25/12.5 kHz
CHannel inCrements: ............................................ 1.25 kHz
antenna tYPe: ........................................................... Helical wound molded rubber flex (standard)