SPPSF Store & Forward Transmitter
The SPPSF is a low cost pocsag store and forward paging repeater available standard with a 100mW to 5W transmitter but which may be boosted up to 25W with an optional RF power amplifier.
The SPPSF receives either pocsag or Flex paging signals from a wide area carrier or other local transmitter and retransmits pocsag locally or acts as a link for further transmissions.
It is also capable of locally switching up to 4 relays and monitoring up to 12 local alarms.
The SPPSF can be used for improving in-building coverage or infill for coverage blank spots.
Applications Coverage Infill In-building coverage expansion Network expansion Cross band repeating (Flex to pocsag) Cross frequency repeating.
  • Retransmit all capcodes or just a selection
  • Battery backed real time clock
  • Up to 12 local alarms may be monitored
  • Receivers available for most paging bands
  • Local message input available
  • VHF & UHF Transmitters available
  • Relay control outputs (4)
  • capcode & message activated
Receiver Synthesised
Frequencies 148-174, 450-470, 929-932 MHz (Other frequencies by request)
Protocols Pocsag & Flex
Channel Spacing 25 KHz
Data Reception Rate 512-2400 bps (Pocsag) 1600/2-6400/4 (Flex)
Frequency Deviation +/- 4,5 KHz
Receiving Sensitivity 5 uV at 1200 bps
Selectivity better than 60 dB
Image Rejection better than 55 dB
Spurious Rejection better than 55 dB
Frequency Stability 10 ppm at -10C~+60C
Transmitter FM/FSK NRZ Synthesised
Power output 5W standard (other available on request)
Power 12-32 V DC/AC (12VDC Nominal)
Current 30mA on standby, 1.2A transmitting
Physical 300 x 230 x 38mm (Excluding connectors and flanges)
Operating Temperature Range -10oC to 70oC
Antennae connectors BNC
Relay ratings 1A @12VDC

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