Description
CMF2000: The Diamond CMF2000 is a common mode filter that will prevent TVI and EMI CEM interference, caused by the transmission coaxial cable.
Usable from 1 to 54 Mhz all bands, HF amateur radio, CB 27 Mhz, 50Mhz (6m) with a maximum admissible power of 2000W. This low pass filter eliminates harmonic frequencies outside the 1-54Mhz band.
In some cases, traditional filters have a limited effect on TVI and BCI. Usually because this type of interference is caused by currents in ‘common mode’ on the shielded mesh of the coaxial cable, and therefore immune to the effects of traditional filters. Connects to the transmission line via female UHF connectors (SO-239) and act like a RF choke line isolator.
In Japan, a country with a high density of radio amateurs and several TVI situations, 250,000 of these filters have already been sold to full satisfaction.
Specifications:
Frequency: 1 MHz to 54 MHz
Maximum input power: 2000W (SSB)
Common mode attenuation: -50dB or more
Insertion loss: less than 0.2dB
Impedance: 50Ω
VSWR: Less than 1.2
Connector: UHF female (SO-239)
Total length: 380 mm
Weight: 650g
