'VHF' related articles 1

  1. 2008/05/08 SMX1-173-5 - Small Multi-channel VHF Transceiver

Description
UK variant: SMX1-173-5 (10mW) Non-UK
variant: SMX1-XXX-5 (1mW-50mW)
SMX1 is small multi-channel VHF transceiver operating on 173.200MHz- 173.325MHz band.
It is also available on 151MHz band Australian allocation.
SMX1 offers a fast-route to custom frequency on any VHF band from 130MHz to 180MHz with 25kHz channel spacing.

Features
* Conforms to ETSI EN 300 220-3 and EN 301 489-3
* Conforms to Australian/New Zealand AS/NZS 4268:2003
* High performance double superhet, 128 channel PLL synthesizer
* Data rates up to 5 kbps for standard module
* Usable range over 1km
* Fully screened. Low profile
* Feature-rich interface (RSSI, analogue and digital baseband)
* Incorporate a 1200baud dumb modem
* Re-programmable via RS232 interface
* Low power requirements

Applications
* Handheld terminals
* Heavy vehicle/machine remote controls
* EPOS equipment, barcode scanners
* Data loggers
* Industrial telemetry and telecommand
* In-building environmental monitoring and control
* High-end security and fire alarms
* Vehicle data up/download

Technical Summary
* Operating frequency: 173.200 – 173.325MHz (UK), 150.825 – 152.450MHz (Australia)
* Custom variants from 130 – 180MHz on any 1MHz band
* 128 channels controlled via RS232 interface
* Transmit power: +10dBm (10mW) nominal. Adjustable 1 – 50mW
* Supply range: 4.2V - 16V
* Current consumption: 40mA (10mW) - 65mA (50mW) transmit, 20mA receive
* Data bit rate: 5kbps max. (standard module)
* Receiver sensitivity: -120dBm (for 12 dB SINAD)
* Size: 53 x 32 x 12mm

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