20 KW FM Bandpass Filter

The JAMPRO 20 KW FM Bandpass Filter (RCBC-X2X-FM) Iris Coupled Combline Band-pass Filter design provides superior performance. This is for medium/high power transmitter systems in a modular configuration. In addition, filter designs will include 2, 3, 4 or 5 sections. Assembly and testing will take place and shipping will be from stock.

20 KW FM Bandpass Filter

Most of all, almost any value of rejection bandwidth can be provided. Achieved by the selection of a number of sections and coupling iris dimensions. Pass-band insertion loss minimizes with 18” high-Q aluminum cavities. Temperature stability remains maintained with use of invar tuning rods on copper center conductors.

Also, 1-5/8” or 3-1/8” connectors will be unflanged. Flanged connectors are available upon request. This design allows input power levels of up to 20 KW – with heat sinks.

Specification: 20 KW FM Bandpass Filter (RCBC-X2X)

  • Type 2, 3, 4 Section.
  • Frequency 88 to 108 MHz.
  • Power 15 KW (20 KW with heat sinks).
  • VSWR 1.08:1 Max  ± 150 kHz.
  • Insertion Loss 0.45 dB Max ± 200 kHz 0.30 dB Typical.


  • 2-Section 30 dB ± 4.0 MHz.
  • 3-Section 30 dB ± 1.6 MHz.
  • 4-Section 30 dB ± 0.9 MHz.
  • 5-Section 30 dB ± 0.7 MHz.

Finally, for more information and pricing, please call the Jampro team. Alternatively, please leave a message via the Contact Us page. We will get back to you as soon as possible.


RCBC-X2X-FM-Literature.pdf (95 downloads)