Alnico DJS-41 User Manual

ALNICO ELECTRONICS INC.
UHF FM MINI POWER TRANSCEIVER
DJS—41
2 S
PECIFICATIONS
:
«General»
• Frequency range/ DJ-S41T 425.000 ~ 499.995
• Modulation/F3E
• DC power source/3.5~4.5V(internal batter), 5.5V (eternal regulated source)
• Current TX/approx. @4.5VDC 260mA, RX/approx. 33mA (squelched)
• Dimensions/55(W) x 100(M) x 28(D)mm without probations
• Weight/approx. 185g (with three AA drycells)
«Transmitter»
• Output Power/approx. @4.5VDC 340mW
• Modulator/Variable reactance
• Max. deviation/± 5kMz
«Receiver»
Configuration/Double conversion superheterodyne
• I.F./ 1
st
: 23.05mHz / 2
nd
: 450kHz
• Sensitivity/better than - 15dB ) (12dB SINAD)
• AF output/not less than 100mW (10% distort. @8 6 )
2 OPTIONS
• Battery Charger .................................... MW818
(220VAC input)
• Headset with VOX .................................. EME-12
(Ear pad type)
EME-13
(Ear phone type)
• Tie-pin mic. And earphone with VOX ............................... EME-15
• Speaker Microphone ............................................. EME-9
• Earphone Mic. .................................................. EME-4
• Soft Case ..................................................... ESC-27
• Car lighter DC cable with voltage conversion to 5.5VDC ............... EDH-18
• Mobile bracket .................................................. EBC-6

Alnico DJS-41 Specifications

General

Brand	Alnico
Model	DJS-41
Category	Transceiver
Language	English

Summary

DJS-41 UHF FM Mini Power Transceiver

Specifications Overview

Details general, transmitter, and receiver specifications for the DJS-41 transceiver.

Available Options

Lists optional accessories for the DJS-41 transceiver, including chargers, headsets, mics, and cases.

Settings and Controls

Antenna Connection

Instructions for rotating and positioning the antenna for operation.

External Power Terminal

Guidance on connecting an external 5.5 VDC power source.

Microphone and Speaker Jacks

Information on connecting optional microphones and speakers to dedicated jacks.

PTT Switch Operation

Describes the function of the Press-to-Talk (PTT) switch for transmitting.

Monitor Function

Explains how to unmute squelch and monitor weak signals, including keylock functionality.

Function (F) Key Usage

Details on activating secondary functions and changing blinking frequency digits.

VFO/Memory Channel Switching

Instructions for switching between VFO and memory channels and programming memory.

Down/Tone Key Functions

How to change frequency downward, enter CTCSS encoder programming, and manage tones.

Up/Step Key Functions

How to change frequency upward and program channel steps.

Lamp/APO Key Functions

Operation of the LCD illumination and Auto Power Off (APO) feature.

LCD Display Information

Explanation of display indicators and how they represent operational parameters.

Scan/Shift Key Functions

How to initiate scanning and set semi-duplex offset frequencies and directions.

Call/Bell Key Functions

Switching to memory channel 'C', resuming original frequency, and alarm function.

Power Switch and Power On

Instructions for powering the device on and off.

Other Functions

Stand-By Beep Function

Enables/disables a beep on signal release, indicating readiness for the other party.

Reverse Operation

How to monitor repeater uplink frequencies by reversing transmit/receive.

Key Stroke Beep Sound

Toggles audible feedback for key presses.

Channel Display Mode

Displays only memory channel numbers, useful for limited channel operation.

Resetting Procedure

Instructions for performing a factory reset by holding F-key and turning power on.