Yearly Archive 2019

ByShaukat Avionics

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Wide Band Communication Receiver

ByShaukat Avionics

PVS7

The AN/PVS-7 is a single tube night vision device. Third generation image intensifiers are standard for military night vision.

ByShaukat Avionics

Solar Panels

Solar panels absorb sunlight as a source of energy to generate direct current electricity.

ByShaukat Avionics

Walkie Talkie Sets

A walkie-talkie is a half-duplex communication device. Multiple walkie-talkies use a single radio channel.

ByShaukat Avionics

Mobile/Base Transceivers

A wireless communication station installed at a fixed location and used to communicate as part of a two-way radio system.

Features of DR138HT

3 Selectable Output Power Levels (VHF 50W /25W/10W, UHF 45W /25W/10W) PC-programmable 200ch memories Alphanumeric name tags Voice Compander (Reduce Noise & enhance audio clarity) Wide variety of selective calling features are built-in:2-Tone, 5-Tone, 50 CTCSS, 114 DCS, 4 Tone-burst tones and DTMF/ANI decode Radio stun/kill/revive functions to protect your communications security Large, bright LCD and easy-to-operate backlit keys Multi-function, backlit microphone & more from keypad Various scan modes, Key lock, Wide/Narrow operations

Specifications

Genaral
Frequency range:DR-138HT: TX/RX 136.000-173.9975
DR-438HE: TX/RX 430.000-439.9975
Modulation:16K0F3E(FM)/11K0F3E(Narrow FM)
Channel steps:2.5KHz, 5KHz, 6.25KHz, 8.33KHz, 10KHz, 12.5KHz, 15KHz, 20KHz, 25KHz, 30KHz, 50KHz
Memory channel:200 ch
Antenna impedance:50ohm unbalanced
Frequency stability:+/- 2.5ppm
Power Supply Requirement:13.8V DC +/- 15% Negative ground
Current Drain:Approx. 12A TX high / 0.6A RX max. / 0.4A RX squelched
Operating temperature:-20digC to +60digC
Dimensions (w/o projection):145(W) x 47(H) x 190(D) mm approx.
Weight:Approx. 1.25 Kg
Transmitter
Power Output:DR-138: 50W / 25W / 10W
DR-438: 45W / 25W / 10W
Modulation system:Variable Reactance Frequency Modulation
Spurious emission:Less than -60dB
Maximum frequency deviation:+/- 5 KHz (FM) / +/- 2.5 KHz (NFM)
Receiver
Receive system:Direct conversion
Sensitivity (-12dB SINAD):VHF 0.25uV / UHF 0.35uV or better
Squelch:Carrier/CTCSS/DCS/5Tone/2Tone/DTMF
Audio output power:2.0 W (8 ohm, 05% distortion)

Specifications subject to change without notice