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On Sale

20-6 Meter Loop Antenna System with 4:1 Balun and Choke Combo, (20, 17, 15, 12, 11, 10, 6 meters) 500/1.5KW/5KW PEP Options

SKU PAL-LOOP2006-500

List price ~~$189.95~~

Save 21%

$149.95

On Sale

40-6 Meter Loop Antenna System with 4:1 Balun and Choke Combo, (40, 20, 17, 15, 12, 11, 10, 6 meters) 500/1.5KW/5KW PEP Options

SKU PAL-LOOP4010-500

List price ~~$189.95~~

Save 11%

$169.95

On Sale

50:100 (2:1) CUBE™ Balun/Unun 1.8-61 MHz, 2KW/5KW, Loop Antennas

SKU CB-2-2000EB

List price ~~$159.95~~

Save 19%

$129.95

On Sale

50:112 (2.25:1) CUBE™ Balun 3-30 MHz, 1.5KW/3KW/5KW

SKU CB-2.25-1500TS

List price ~~$159.95~~

Save 31%

$109.95

50:450 ohm (9:1) Balun or Unun Core Kit, .5-32 MHz, 1000 watts PEP, end fed/Ladder Line, T2FD antenna

SKU BA-9-1000

$29.95

50:450 ohm (9:1) Balun or Unun Core Kit, 1.8-30 MHz, 250 watts PEP, end fed, T2FD antenna

SKU BA-9-250

$21.95

On Sale

50:450 ohm (9:1) CUBE™ Unun, 1.8-61 MHz, 1.5 KW, End Fed Long Wire

SKU CU-9-1500

List price ~~$129.95~~

Save 15%

$109.95

80-10 Meter Loop Antenna System with 4:1 Balun and Choke Combo, 3-30 MHz, 500/1500/5000 PEP Option

SKU PAL-LOOP8010-500

$199.95

AC Cable Noise Filter for Large Plugs - 3" ID

SKU ACCF-3

$39.95

AC Cable Noise Filter for Standard 120VAC Plugs - 1.4" ID

SKU ACCF-1.4

$12.95

Bullet 50:200 (4:1) HF Unun, 1.8-61 MHz, 100/500/1500 Watts, End Fed OCF Antennas

SKU Bullet-4U-100

$69.95

Bullet 50:450 (9:1) HF Unun, 1.8-61 MHz, 100 Watts, End Fed Long Wire Antennas

SKU Bullet-9U-100

$59.95

Bullet 50:450 (9:1) HF Unun, 1.8-61 MHz, 500/1500 Watts, End Fed Long Wire Antennas

SKU Bullet-9U-500

$79.95

On Sale

CUBE Feed Line Choke/Line Isolator Unun, 1.5KW, 1.8-65 MHz, -38dB Suppression

SKU CU-1-1500SO

List price ~~$149.95~~

Save 27%

$109.95

On Sale

Coax Common Mode Noise Filter - 500 Watts PEP, 1-60 MHz, -38dB Common Mode Noise Suppression!

SKU CMNF-500-50

List price ~~$79.95~~

Save 13%

$69.95

Coax Common Mode Noise Filter - 5000 Watts, 1.8-60 MHz, up to -38dB Noise Suppression

SKU CMNF-5000HF

$129.95

Coax Static Bleeder

SKU SB-1

$21.95

DC Cable Noise Filter for 2 Gauge and Smaller Wire - 1.4" ID

SKU DCCF-1.4

$12.95

DELUXE Desktop Computer with AC power RFI Kit - 11 Filters

SKU RFI-DESKTOP-DELUXE

$69.95

Elecraft K3/K3S Transceiver RFI Kit - 7 Noise Reduction Filters

SKU RFI-ELECRAFT-K3

$49.95

Elecraft KX3 Transceiver RFI Kit - 3 Noise Reduction Filters

SKU RFI-ELECRAFT-KX3

$19.95

FREE USA SHIPPING

Extra Large Ring/Multi-Snap On Combo Pack, Mix 31, RFI Range 1-300 MHz - 28 filters (1/4", 1/2", 1.4")

SKU XLRSCP-31-28

List price ~~$147.50~~

Save 12%

$129.95

F240-31, ID=1.4", AC/DC/Coax Noise Filter, RFI Range 1-300 MHz, AKA FT240-31

SKU F240-31-1

$9.99

On Sale

FT240-3I, ID=1.4", AC/DC/Coax Noise Filter, RFI Range 1-300 MHz, Bulk Pack of 10

SKU F240-31-10

List price ~~$100.00~~

Save 10%

$89.95

On Sale

FT240-3I, ID=1.4", AC/DC/Coax Noise Filter, RFI Range 1-300 MHz, Mini Pack of 3

SKU F240-31-3

List price ~~$34.95~~

Save 14%

$29.95

FT400-3I, ID=3", RFI Range 1-300 MHz

SKU F400-31-1

$39.95

On Sale

Ferrite Mini Snap On Combo Pack, Mix 31, RFI Range 1-300 MHz - 10 filters (3/8, 1/2, 3/4)

SKU FMSCP-31-10

List price ~~$55.95~~

Save 11%

$49.95

On Sale

Ferrite Ring Combo Pack, FT240 - 1.4" ID, 10 Rings - Mix 31(4), 61(3), 75(3), RFI Range .15-2000 MHz

SKU FRCP-240-10

List price ~~$139.50~~

Save 14%

$119.95

Ferrite Ring Mini Combo Pack, FT240 - 1.4" ID, 3 Rings - Mix 31, 61, 75, RFI Range .15-2000 MHz

SKU FRCP-240-3

$39.50

On Sale

Ferrite Ring and Snap On Combo Pack - 10 Rings (1.4" ID) + 10 Snap On Beads (1/2" ID) - Mix 31 (RFI Range 1-300 MHz) FREE USA SHIPPING

SKU FRSCP-31-20

List price ~~$155.00~~

Save 10%

$139.95

On Sale

Ferrite Snap On Combo Pack, Mix 31, RFI Range 1-300 MHz - 1/4, 3/8, 1/2, 3/4 - 22 filters

SKU FSCP-31-22

List price ~~$108.00~~

Save 12%

$95.00

Ferrite Snap On Sampler Pack, Mix 31, RFI Range 1-300 MHz - 10 filters (1/4, 1/2, 3/4, 1)

SKU FSOSP-31-10

$59.95

On Sale

Ferrite Snap on/Ring Combo Pack, Mix 31, RFI Range 1-300 MHz - 16 filters

SKU FSRCP-31-16

List price ~~$112.00~~

Save 15%

$95.00

On Sale

Garage Door Opener RFI Kit, Low Freq (150 KHz-10 MHz) for AM Broadcast or High Freq (1-300 MHz) for Ham Radio or Commercial RFI

SKU RFI-GDO

List price ~~$49.95~~

Save 30%

$34.95

HF Base Deluxe Transceiver RFI and Noise Reduction Kit - 14 Filters

SKU RFI-XCVR-DELUXE

$89.95

HF Linear Amplifier RFI Kit - Alpha, Ameritron, HeathKit, Henry, Icom, Kenwood, Yaesu, Generic Amps - 4 Filters

SKU RFI-LA-AM

$54.95

HF Mobile Transceiver RFI and Noise Reduction Kit, RFI Range 1-300 Mz

SKU RFi-HF-MOBILE

$39.95

BEST SELLER!

HF Transceiver RFI/Noise Reduction Kit - 5 Noise Reduction Filters + Coax Noise Filter

SKU RFI-XCVR-STD+NF

$99.95

HF Transceiver RFI/Noise Reduction Kit, RFI Range 1-300 MHz, 5 Filters

SKU RFI-XCVR-STD

$39.95

On Sale

Home Theater System RFI Kit for up to 4 HDTV, A/V units + I/O cables - 12 filters

SKU RFI-HTS

List price ~~$89.95~~

Save 22%

$69.95

On Sale

Hybrid 4:1 Balun + 1:1 Current Balun in one enclosure, 1.8-61 MHz, 1.5/5KW PEP - Loop, OCF Antennas

SKU CB-4-1-1500EB

List price ~~$189.95~~

Save 26%

$139.95

On Sale

Hybrid 6:1 Current Balun + 1:1 Current Balun in one enclosure, 1.8-61 MHz, 1.5KW/5KW PEP

SKU CB-6-1-1500

List price ~~$189.95~~

Save 21%

$149.95

On Sale

Hybrid 9:1 Current Balun + 1:1 Current Balun in one enclosure, 1.8-61 MHz, 1.5KW PEP - BBTD, T2FD Antenna

SKU CB-9-1-1500

List price ~~$189.95~~

Save 26%

$139.95

Icom 703/705/706/718/7000/7100 Transceiver RFI Kit - 5 Noise Reduction Filters

SKU RFI-Icom-7000

$39.95

Icom 718 Transceiver RFI Kit - 5 Noise Reduction Filters

SKU RFI-ICOM-718

$39.95

Icom 7400/7410/7600/7610/7700 Transceiver RFI and Noise Reduction Kit, RFI Range 1-60 MHz, 14 Filters

SKU RFI-ICOM-7610

$89.95

Icom 746/756/765/775/781 Transceiver RFI and Noise Reduction Kit, RFI Range 1-300 MHz, 14 Filters

SKU RFI-Icom-756

$89.95

BEST SELLER!

Icom IC-7300 Transceiver Deluxe RFI Kit - 5 Noise Reduction Filters + Coax Noise Filter

SKU RFI-ICOM-7300DLX

$99.95

BEST SELLER!

Icom IC-7300 Transceiver RFI Kit - 5 Noise Reduction Filters

SKU RFI-ICOM-7300

$39.95

Icom IC-9700 Transceiver RFI Kit - 12 Noise Reduction Filters

SKU RFI-ICOM-9700

$79.95

Kenwood TS-890 Transceiver RFI and Noise Reduction Kit, RFI Range 1-300 MHz, 14 Filters

SKU RFI-KENWOOD-890

$89.95

Kenwood TS520/ 530/820/830, Transceiver RFI Kit - 5 Noise Reduction Filters

SKU RFI-KENWOOD-830

$39.95

Kenwood TS570, 590, 2000 Transceiver RFI Kit - 14 Noise Reduction Filters

SKU RFI-Kenwood-590

$89.95

On Sale

Kurt Speaks Out - Digital PDF Version - Download Now!

SKU KURT-KSO-PDF

List price ~~$14.95~~

Save 100%

$0.00

On Sale

Laptop Computer with DC power RFI Kit - 7 Filters

SKU RFI-Laptop

List price ~~$34.95~~

Save 14%

$29.95

MAXI-CHOKER Coax Line Isolator/Choke, 1-61 MHz, 1.5/3KW/5KW, up to -60 Db Common Mode Rejection, Static Bleeder Option

SKU MC-1-1500

$89.95

MINI-BALUN 1:1 Coax Interface to Ladder Line, Dipole elements, 500 Watts PEP, up to -38Db Common Mode Rejection, 1-61 MHz, Flagpole, Dipole, Beam and G5RV/ZS6BKW Antennas

SKU MB-1-500SS

$69.95

MINI-CHOKER Coax Line Isolator, 500 Watts PEP, up to -38Db Common Mode Rejection, 1-61 MHz, 1:1 Unun

SKU MC-1-500-50

$69.95

Maxi-Choker, 1:1 Line Isolator 3KW, 7-54 MHz Optimized for Wide Band Log Periodic, HF & 6M Beams. Noise Suppression up to 38 dB

SKU MC-1-3000LP

$109.95

On Sale

Multi Ratio 4:1/6:1/9:1 CUBE™ Balun, 1.8-61 MHz, 1.5 KW

SKU CB-4-9-1500

List price ~~$149.95~~

Save 13%

$129.95

Also make sure you connect a good RF ground to the transceiver ground post.

Note to Flex Radio users: Use snap on ferrites for firewire cable, speaker cable and mic cable, Ring ferrites for Antenna output and DC power.

For additional RFI suppression, use a feed line choke at the antenna to suppress common current on the coax feed line – see our store for feed line choke alternatives for use at the antenna.

If you use a linear amplifier we have RFI kits for linear amplifiers that help suppress RFI in your shack or in your neighbor’s house.