Store

Yaesu 817/857/881/891 Transceiver RFI Kit - 5 Noise Reduction Filters

SKU RFI-YAESU-857
$39.95
In stock
1
Product Details

BUY THIS KIT NOW TO SOLVE YOUR RFI/EMI NEEDS! WORKS WITH MANY BRANDS OF HAM/COMMERCIAL HF RADIOS INCLUDING THE YAESU 817/857/881/891

Kit Includes noise reduction ring filters for coax, AC/DC power and 3 snap on filters for I/O cables covering RFI range of 1-300 MHz. Quick installation - immediate RFI/noise reduction. No radio mods required.


This kit will help reduce or eliminate:

1. “Hot mic” RFI caused by poor grounding of antennas or common mode currents from linear amps feeding unbalanced (coax fed) antennas without baluns/line isolators.

2. RFI to neighbor’s electronic devices including audio/video systems, computers, telephones, garage door openers, etc.

3. RFI to your other radios, audio/video systems, computers, telephones, etc.

A side benefit is a reduction in noise floor in your receiver depending on the amount of noise being introduced by common mode currents (which are blocked/reduced by the chokes in this kit).

These chokes use a special mix of ferrite core material that is effective in suppressing radio frequency interference from transmitters and high noise floor on receivers.

The split beads beads are easy to use, don’t require modification of the protected equipment and work in almost all cases, even when plug-in filters fail.

Use of the chokes often helps cure SWR problems between transceiver and a linear amp and between transceiver and antenna tuner or direct to antenna. The DC power line choke helps keep common mode current out of the power line which could cause interference to other devices connected to the same power line if not suppressed.

For additional RFI suppression, use a feed line choke at the antenna feed point to suppress common current on the coax feed line and a coax noise filter at the radio end of the coax to reduce common mode noise.


If you use a linear amplifier use a Palomar Engineers amplifier RFI kit for additional RFI interference suppression.

Save this product for later

Summer Specials

RFI Icom 7300 2 Product web 2 - Store
Suppresses TRANSMIT RFI and RECEIVE Common Mode Noise
PEI BAS 500 2 web - Store

80-6 Meters End Fed Antenna - 71' - 500 Watts - Portable or Stealth

 

MC 1 3000 Product 3 web - Store
Coax Choke/line isolator for all antenna types, 1-61 MHz, 3KW PEP
Palomar Engineers Mini Choker line isolator product - Store

Coax Choke/Line Isolator for all antenna types - 500 Watts, 1-61 MHz

 

Palomar Engineers Coax Noise Filter CMNF-500-50
Reduces Coax Common Mode Noise up to 6 "S" Units, 1 to 61 MHz
FSCP 31 22 Lebel for web - Store
Our BEST VALUE Combo Snap On Pack - all popular sizes, 1-300 MHz
F240 31 10 Label Page 1 labels - Store
Best Deal on Ferrite Toroids - Buy 9 at regular price and get 1 FREE!
FSB31 .5 30 single label for web 2 1 - Store
Our MOST ECONOMICAL 1/2" Snap On Ferrite Bulk Pack