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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