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Midland ALAN 48 PLUS MULTI B User Manual

Midland ALAN 48 PLUS MULTI B
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Alan 48Plus Multi B
I N
STRUCTION GU I DE
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Midland ALAN 48 PLUS MULTI B Specifications

General Specifications IconGeneral Specifications
frequency range26.565 - 27.99125 MHz
operating temperature range-10°/+55° C
DC input voltage12.6V DC ±10%
size180 (L)x50 (H)x150 (P) mm
weight1kg
Receiver Specifications IconReceiver Specifications
sensitivity in FM mode0.5µV for 20 dB SINAD
sensitivity in AM mode0.5µV for 20 dB SINAD
audio output power2.0 W @ 8 Ohm
audio distortionless than 8% @ 1 KHz
image rejection65 dB
adjacent channel rejection65 dB
signal/noise ratio45 dB
current drain at stand-by250mA
Transmitter Specifications IconTransmitter Specifications
output power4W max
AM modulation85% to 95%
FM modulation1, 8 KHz ± 0, 2 KHz
frequency response300 Hz/3 KHz
output impedanceRF 50 Ohm unbalanced
signal/noise ratio40 dB MIN
current drain1100mA

Summary

Front Panel Controls and Display

Channel Selector and Display

Details the channel selector knob and the multifunction backlighted display.

Microphone Jack and Connections

Explains the microphone jack for audio input and its placement.

Volume, Squelch, and Gain Controls

Covers ON/OFF Volume, Squelch, RF Gain, and Microphone Gain controls for audio adjustment.

Memory and Emergency Function Buttons

Explains the M1-M4 memory buttons and the EMG emergency channel button.

Additional Front Panel Controls

Channel Skip and Mode Selectors

Details Q. UP/DOWN buttons, CB/PA selector, ANL/OFF, Local/DX, and AM/FM buttons.

Scan and Dual Watch Features

Explains the SCAN button for seeking busy channels and the DW button for monitoring two channels.

Rear Panel Connections

Antenna and Audio Connectors

Details the SO239 antenna connector, PA jack, and EXT jack for external speakers.

Signal Meter and Power Input

Explains the S. Meter jack for external meters and the 12.6V DC power supply cable.

Installation and Operation

Microphone Operation

Describes the PTT button, UP/DOWN buttons, and LOCK button on the microphone.

Transceiver Installation Guidelines

Provides safety and convenience tips for mounting the transceiver in a vehicle.

Power Supply and Fuse Replacement

Details correct power supply connection and fuse replacement procedures.

Antenna Installation and Warning

Covers optimal antenna placement and the critical warning against operating without an antenna.

Operating Procedures

Basic Transceiver Operation

Steps for connecting the microphone, antenna, and adjusting controls for initial use.

Frequency Band Selection

Procedure for selecting operating frequency bands according to country.

Frequency Band Chart

Lists available frequency bands and their corresponding country codes and power levels.

Technical Specifications

General Specifications

Details general parameters such as frequency range, operating temperature, size, and weight.

Receiver Specifications

Lists receiver characteristics including system, intermediate frequency, and sensitivity.

Transmitter Specifications

Details transmitter output power, modulation, frequency response, and current drain.

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