RFI/EMI Solutions

Beverage Antenna Coax Noise Filter, 1-60 MHz, Suppresses Common Mode RFI, 75 Ohm In/Out

CMNF-500-75F

Beverage Antenna Coax Noise Filter, 1-60 MHz, Suppresses Common Mode RFI, 75 Ohm In/Out CMNF-500-75F

Beverage Antenna Coax Noise Filter for AM Broadcast & HF from 1-60 MHz – F connector, 75 ohm input/output, 500 watts PEP

Purpose. The CMNF-500-75F is used to suppress RFI noise and common mode interference on the coaxial feed line of beverage, EWE, and other receiving/transmitting antennas using RG-8 or similar 75 ohm coax feed lines.(also available for 50 ohm lines as CMNF-500-50)

The filter is designed to have a high RF impedance to noise and interference from common mode currents on the outside of the coax braid while passing RF signal currents on the center conductor and inside of the coax braid to the antenna.

The effectiveness of the filter is dependent upon the amount of common mode noise encountered on the feed line. If your receive system has a large amount of common mode noise current then you should experience a reduction of common mode current which usually as heard as background noise level. Typical choking impedance is shown in the gallery picture.

$59.95 In stock
Brand:Palomar Engineers
MPN:CMNF-TV
Country/Region of Manufacture:United States
Filter Power Rating (PEP watts):receiver only
Choking Impedance (ohms):1000 - 7000
Common Mode Attenuation (db):21 - 36 db
RFI Suppression Range (MHz):200 KHz-30 MHz
Insertion Loss (db):.02
# Ferrite Filters:3
Enclosure Size (inches):4" x 2" x 1.5"
Typical Use::Noise filter at radio end of coax next to receiver
Beverage Antenna Coax Noise Filter, 1-60 MHz, Suppresses Common Mode RFI, 75 Ohm In/Out