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VHF In-Band Filters


For Use with SVR-200 Vehicular Repeater

Our color brochure is now online! Click to download.

Do you have questions regarding VHF In-Band operation? Download this informative outline of VHF In-band operation and FAQ.

Features:

  • Low insertion loss allows for VHF in-band repeating.
  • High selectivity - narrow band width.
  • Allows up to a 2 MHz SVR-200 to Mobile frequency separation.
  • Factory Tuned.
     Need technical specifications on BPF-1604?  Click to download.
     Need technical specifications on BRF-1601?  Click to download.
     Need technical specifications on BRF-1602?  Click to download.

Introduction:

The Pyramid Communications line of custom filter products allow VHF mobiles and VHF handhelds to utilize the SVR-200VB. The SVR-200VB is a VHF synthesized vehicular repeater that will extend handheld coverage by receiving the handhelds transmission and rebroadcast using the high power of the existing mobile radio, essentially giving the handheld user the same coverage area as the mobile radio.

Operation:

The BPF-1604 with the BRF-1601 or BRF-1602 filters allow Public Safety users to operate VHF Vehicular Repeaters in-band with high power VHF mobiles. The BPF-1604 Bandpass filter connects to the SVR-200 antenna cable to provide 75db of isolation at 10 MHz and protects the SVR-200 receiver from the mobile transmitter.

The BRF-1601 Notch filter connects to the mobile transmitter antenna cable and provides an additional 25db of isolation by reducing the mobile transmitter phase noise at the SVR-200 receive frequency. Both cavities offer low VSWR, low insertion loss, narrow bandwidth and high isolation. Frequency spacing as close as 5 MHz is possible depending on the mobile and antenna placement.

The BRF-1602 Notch filter connects to the mobile transmitter antenna cable and provides an additional 25db of isolation by reducing the mobile transmitter phase noise at the SVR-200 receive frequency. Both cavities offer low VSWR, low insertion loss, narrow bandwidth and high isolation. Frequency spacing as close as 2 MHz is possible depending on the mobile and antenna placement.
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