Mobile Station RFI Kits

Wall Wart RFI Noise Filter Pack (5 filters)


Wall Wart RFI Noise Filter Pack (5 filters) RFI-WW-5

A simple ferrite ring filter installed on the DC power cable of a wall wart power supply can help suppress the noise interference to nearby electronic devices by suppressing the fundamental switching frequency (usually under 1 MHz) and thereby suppressing harmonics at higher frequencies.. This kit includes 5 filters useful for all types of devices powered by wall wart power supplies including laptop computer, routers, cable modems, wireless phone charges, USB chargers, etc.

$16.95 In stock
Brand:Palomar Engineers
Country/Region of Manufacture:United states
Filter Power Rating (PEP watts):not applicable
RFI Suppression Range (MHz):.1-10 MHz
# Ferrite Filters:5
Typical Use::wall wart power supplies - DC side
Wall Wart RFI Noise Filter Pack (5 filters)Wall Wart RFI Noise Filter Pack (5 filters)
Mobile RFI kits work two ways: They suppress RFI from on board computers and other sensing/control devices in your vehicle that may cause your radio to be a VICTIM of RFI, and second they suppress RFI generated by your radio as a SOURCE which may affect your on board computers or other devices.  Mobile operations of HF radios (1-30 Mhz) tend to experience more RFI effects than VHF/UHF mobile stations.  If you have both HF and VHF installations in your vehicles, you may need both kits.

To address separate solutions we have developed two separate RFI kits: one for HF (1.8-300 MHz) mobile installations and another for VHF/UHF (30-1000 MHz) mobile installations.  Each kit uses the appropriate ferrite mix for the frequency range desired.