Microwave Filter Company, Inc.
International Calls: (315) 438-4700
Toll Free: (800) 448-1666
mfcsales@microwavefilter.com

"Committed to Excellence" Since 1967



An ISO 9001:2008 Registered Company
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FM Harmonic Reject Filters
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For Suppressing FM Station Transmitter Harmonics: FM transmitters often generate harmonics - multiples of the transmitter frequency. Some of these cause interference to VHF-TV and UHF-TV reception and paging and cellular radio reception. This series of low pass filters pass the entire FM band with low loss and provide substantial harmonic suppression.

Model 18150

Model 18150
• 300 Watt (CW) Transmit Power Rating
• 2nd thru 10th Harmonics Suppression
   Ideal for eliminating potential interference to these bands:
• DTV - VHF-Hi (7-13) • Wireless - 700 MHz
• DTV - UHF (14-51) • Wireless - 850 MHz

Model 7123

Model 7123
• 500 Watt (CW) Transmit Power Rating
• 2nd thru 10th Harmonics Suppression
   Ideal for eliminating potential interference to these bands:
• DTV - VHF-Hi (7-13) • Wireless - 700 MHz
• DTV - UHF (14-51) • Wireless - 850 MHz


Model 19478
• 1000 Watt (CW) Transmit Power Rating
• Multiple Harmonics Suppression
   Ideal for eliminating potential interference to these bands:

• DTV - VHF-Hi (7-13) • Wireless - 700 MHz
• DTV - UHF (14-51) • Wireless - 850 MHz

Model 7131

Model 7131
• 1500 Watt (CW) Transmit Power Rating
• 2nd thru 4th Harmonics Suppression
   Ideal for eliminating potential interference to these bands:
• DTV - VHF-Hi (7-13)
   See Chart Below for Additional Information on these products

Specifications:
Model Number Passband (MHz) Passband Loss Passband VSWR Rejection Dimensions Connectors
18150 88 - 108 0.20 dB Typ
0.25 dB Max
1.15:1 Max 70 dB Min from 176 - 540 MHz
60 dB Min from 528 - 1080 MHz
9.50” x 3.00” x 1.50” N-female
7123 88 - 108 0.10 dB Typ
0.25 dB Max
1.25:1 Max 50 dB Min from 176 - 216 MHz
60 dB Min from 264 - 432 MHz
80 dB Min from 440 - 1080 MHz
5.85” x 1.75” x 2.125” N-female
19478 88 - 108 0.3 dB Max 1.25:1 Max 40 dB Min from 176 – 648 MHz
> 50 dB Typ from 649 – 894 MHz
13.00” x 4.00” x 3.14” 7/16
DIN-female
7131 88 - 108 0.14 dB Typ
0.20 dB Max
1.30:1 Max 40 dB Min from 176 - 432 MHz 14.50” x 4.13” x 3.00” 7/8” EIA

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Toll Free: (800) 448-1666
International: (315) 438-4700
Fax: (315) 463-1467

6743 Kinne Street
East Syracuse, New York 13057
Website: www.microwavefilter.com
Email: mfcsales@microwavefilter.com