Receiver Impedance/Isolation Transformers

For impedance transformation/isolation applications when max power is < 10 Watts PEP, this transformer provides a simple interface between transmission lines with different connectors or impedances or simply common mode isolation. DC continuity for bias-T applications.

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On Sale
4027835776 - Receiver Impedance/Isolation Transformers
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
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-XXX
List price $189.95
Save 21%
$149.95
On Sale
3184471292 - Receiver Impedance/Isolation Transformers
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
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
List price $189.95
Save 11%
$169.95
On Sale
993486357 - Receiver Impedance/Isolation Transformers
50:100 (2:1) CUBE™ Balun/Unun 1.8-61 MHz, 2KW/5KW, Loop Antennas
50:100 (2:1) CUBE™ Balun/Unun 1.8-61 MHz, 2KW/5KW, Loop Antennas
SKU CB-2-2000
List price $159.95
Save 25%
$119.95
1072922503 - Receiver Impedance/Isolation Transformers
50:450 ohm (9:1) Balun or Unun Core Kit, .5-32 MHz, 1000 watts PEP, end fed/Ladder Line, T2FD antenna
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
$27.95
581480947 - Receiver Impedance/Isolation Transformers
50:450 ohm (9:1) Balun or Unun Core Kit, 1.8-30 MHz, 250 watts PEP, end fed, T2FD antenna
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
1864891770 - Receiver Impedance/Isolation Transformers
50:450 ohm (9:1) CUBE™ Unun, 1.8-61 MHz, 1.5 KW, End Fed Long Wire
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
3184474777 - Receiver Impedance/Isolation Transformers
80-10 Meter Loop Antenna System with 4:1 Balun and Choke Combo, 3-30 MHz, 500/1500/5000 PEP Option
80-10 Meter Loop Antenna System with 4:1 Balun and Choke Combo, 3-30 MHz, 500/1500/5000 PEP Option
SKU PAL-LOOP8010
$199.95
982808144 - Receiver Impedance/Isolation Transformers
AC Cable Noise Filter for Large Plugs - 3" ID
AC Cable Noise Filter for Large Plugs - 3" ID
SKU ACCF-3
$39.95
2654217922 - Receiver Impedance/Isolation Transformers
AC Cable Noise Filter for Standard 120VAC Plugs - 1.4" ID
AC Cable Noise Filter for Standard 120VAC Plugs - 1.4" ID
SKU ACCF-1.4
$12.95
3854321638 - Receiver Impedance/Isolation Transformers
Bullet 50:200 (4:1) HF Unun, 1.8-61 MHz, 100/500/1500 Watts, End Fed OCF Antennas
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
3938050704 - Receiver Impedance/Isolation Transformers
Bullet 50:450 (9:1) HF Unun, 1.8-61 MHz, 100 Watts, End Fed Antennas
Bullet 50:450 (9:1) HF Unun, 1.8-61 MHz, 100 Watts, End Fed Antennas
SKU Bullet-9U-100
$69.95
601863912 - Receiver Impedance/Isolation Transformers
Bullet 50:450 (9:1) HF Unun, 1.8-61 MHz, 500/1500 Watts, End Fed Long Wire Antennas
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
3862217729 - Receiver Impedance/Isolation Transformers
Coax Common Mode Noise Filter - 500 Watts PEP, 1-60 MHz, -38dB Common Mode Noise Suppression!
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
816294795 - Receiver Impedance/Isolation Transformers
Coax Common Mode Noise Filter - 5000 Watts, 1.8-60 MHz, up to -38dB Noise Suppression
Coax Common Mode Noise Filter - 5000 Watts, 1.8-60 MHz, up to -38dB Noise Suppression
SKU CMNF-5000HF
$119.95
581480814 - Receiver Impedance/Isolation Transformers
Coax Static Bleeder
Coax Static Bleeder
SKU SB-1
$21.95
On Sale
3406525134 - Receiver Impedance/Isolation Transformers
CUBE Feed Line Choke/Line Isolator Unun, 1.5KW, 1.8-65 MHz, -38dB Suppression
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
2654143999 - Receiver Impedance/Isolation Transformers
DC Cable Noise Filter for 2 Gauge and Smaller Wire - 1.4" ID
DC Cable Noise Filter for 2 Gauge and Smaller Wire - 1.4" ID
SKU DCCF-1.4
$12.95
3061086793 - Receiver Impedance/Isolation Transformers
DELUXE Desktop Computer with AC power RFI Kit - 11 Filters
DELUXE Desktop Computer with AC power RFI Kit - 11 Filters
SKU RFI-DESKTOP-DELUXE
$69.95
1346529455 - Receiver Impedance/Isolation Transformers
Elecraft K3/K3S Transceiver RFI Kit - 7 Noise Reduction Filters
Elecraft K3/K3S Transceiver RFI Kit - 7 Noise Reduction Filters
SKU RFI-ELECRAFT-K3
$49.95
2427589481 - Receiver Impedance/Isolation Transformers
Elecraft KX3 Transceiver RFI Kit - 3 Noise Reduction Filters
Elecraft KX3 Transceiver RFI Kit - 3 Noise Reduction Filters
SKU RFI-ELECRAFT-KX3
$19.95
FREE USA SHIPPING
1747185466 - Receiver Impedance/Isolation Transformers
Extra Large Ring/Multi-Snap On Combo Pack, Mix 31, RFI Range 1-300 MHz - 28 filters (1/4", 1/2", 1.4")
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
On Sale
2520706681 - Receiver Impedance/Isolation Transformers
Ferrite Mini Snap On Combo Pack, Mix 31, RFI Range 1-300 MHz - 10 filters (3/8, 1/2, 3/4)
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
1487159529 - Receiver Impedance/Isolation Transformers
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
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
2385165615 - Receiver Impedance/Isolation Transformers
Ferrite Ring Combo Pack, FT240 - 1.4" ID, 10 Rings - Mix 31(4), 61(3), 75(3), RFI Range .15-2000 MHz
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
2385087468 - Receiver Impedance/Isolation Transformers
Ferrite Ring Mini Combo Pack, FT240 - 1.4" ID, 3 Rings - Mix 31, 61, 75, RFI Range .15-2000 MHz
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
2520706712 - Receiver Impedance/Isolation Transformers
Ferrite Snap On Combo Pack, Mix 31, RFI Range 1-300 MHz - 1/4, 3/8, 1/2, 3/4 - 22 filters
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
1706155548 - Receiver Impedance/Isolation Transformers
Ferrite Snap On Sampler Pack, Mix 31, RFI Range 1-300 MHz - 10 filters (1/4, 1/2, 3/4, 1)
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
672806530 - Receiver Impedance/Isolation Transformers
Ferrite Snap on/Ring Combo Pack, Mix 31, RFI Range 1-300 MHz - 16 filters
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
977476514 - Receiver Impedance/Isolation Transformers
FT240-3I, ID=1.4", AC/DC/Coax Noise Filter, RFI Range 1-300 MHz
FT240-3I, ID=1.4", AC/DC/Coax Noise Filter, RFI Range 1-300 MHz
SKU F240-31-1
$9.99
On Sale
977476519 - Receiver Impedance/Isolation Transformers
FT240-3I, ID=1.4", AC/DC/Coax Noise Filter, RFI Range 1-300 MHz, Bulk Pack of 10
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
977476519 - Receiver Impedance/Isolation Transformers
FT240-3I, ID=1.4", AC/DC/Coax Noise Filter, RFI Range 1-300 MHz, Mini Pack of 3
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
977476499 - Receiver Impedance/Isolation Transformers
FT400-3I, ID=3", RFI Range 1-300 MHz
FT400-3I, ID=3", RFI Range 1-300 MHz
SKU F400-31-1
$39.95
On Sale
2833412803 - Receiver Impedance/Isolation Transformers
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
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
982840462 - Receiver Impedance/Isolation Transformers
HF Base Deluxe Transceiver RFI and Noise Reduction Kit - 14 Filters
HF Base Deluxe Transceiver RFI and Noise Reduction Kit - 14 Filters
SKU RFI-XCVR-DELUXE
$89.95
982808115 - Receiver Impedance/Isolation Transformers
HF Linear Amplifier RFI Kit - Alpha, Ameritron, HeathKit, Henry, Icom, Kenwood, Yaesu, Generic Amps - 4 Filters
HF Linear Amplifier RFI Kit - Alpha, Ameritron, HeathKit, Henry, Icom, Kenwood, Yaesu, Generic Amps - 4 Filters
SKU RFI-LA-AM
$54.95
4029027006 - Receiver Impedance/Isolation Transformers
HF Mobile Transceiver RFI and Noise Reduction Kit, RFI Range 1-300 Mz
HF Mobile Transceiver RFI and Noise Reduction Kit, RFI Range 1-300 Mz
SKU RFi-HF-MOBILE
$39.95
BEST SELLER!
1332224054 - Receiver Impedance/Isolation Transformers
HF Transceiver RFI/Noise Reduction Kit - 5 Noise Reduction Filters + Coax Noise Filter
HF Transceiver RFI/Noise Reduction Kit - 5 Noise Reduction Filters + Coax Noise Filter
SKU RFI-XCVR-STD+NF
$99.95
982808123 - Receiver Impedance/Isolation Transformers
HF Transceiver RFI/Noise Reduction Kit, RFI Range 1-300 MHz, 5 Filters
HF Transceiver RFI/Noise Reduction Kit, RFI Range 1-300 MHz, 5 Filters
SKU RFI-XCVR-STD
$39.95
On Sale
982808127 - Receiver Impedance/Isolation Transformers
Home Theater System RFI Kit for up to 4 HDTV, A/V units + I/O cables - 12 filters
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
1725432406 - Receiver Impedance/Isolation Transformers
Hybrid 4:1 Balun + 1:1 Current Balun in one enclosure, 1.8-61 MHz, 1.5/5KW PEP - Loop, OCF Antennas
Hybrid 4:1 Balun + 1:1 Current Balun in one enclosure, 1.8-61 MHz, 1.5/5KW PEP - Loop, OCF Antennas
SKU CB-4-1-1500
List price $189.95
Save 26%
$139.95
On Sale
1725513115 - Receiver Impedance/Isolation Transformers
Hybrid 6:1 Current Balun + 1:1 Current Balun in one enclosure, 1.8-61 MHz, 1.5KW/5KW PEP
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
1725513181 - Receiver Impedance/Isolation Transformers
Hybrid 9:1 Current Balun + 1:1 Current Balun in one enclosure, 1.8-61 MHz, 1.5KW PEP - BBTD, T2FD Antenna
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
581498644 - Receiver Impedance/Isolation Transformers
Icom 703/705/706/718/7000/7100 Transceiver RFI Kit - 5 Noise Reduction Filters
Icom 703/705/706/718/7000/7100 Transceiver RFI Kit - 5 Noise Reduction Filters
SKU RFI-Icom-7000
$39.95
1438278741 - Receiver Impedance/Isolation Transformers
Icom 718 Transceiver RFI Kit - 5 Noise Reduction Filters
Icom 718 Transceiver RFI Kit - 5 Noise Reduction Filters
SKU RFI-ICOM-718
$39.95
581498644 - Receiver Impedance/Isolation Transformers
Icom 7400/7410/7600/7610/7700 Transceiver RFI and Noise Reduction Kit, RFI Range 1-60 MHz, 14 Filters
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
581498644 - Receiver Impedance/Isolation Transformers
Icom 746/756/765/775/781 Transceiver RFI and Noise Reduction Kit, RFI Range 1-300 MHz, 14 Filters
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!
1332224054 - Receiver Impedance/Isolation Transformers
Icom IC-7300 Transceiver Deluxe RFI Kit - 5 Noise Reduction Filters + Coax Noise Filter
Icom IC-7300 Transceiver Deluxe RFI Kit - 5 Noise Reduction Filters + Coax Noise Filter
SKU RFI-ICOM-7300DLX
$99.95
BEST SELLER!
1438288362 - Receiver Impedance/Isolation Transformers
Icom IC-7300 Transceiver RFI Kit - 5 Noise Reduction Filters
Icom IC-7300 Transceiver RFI Kit - 5 Noise Reduction Filters
SKU RFI-ICOM-7300
$39.95
1567997403 - Receiver Impedance/Isolation Transformers
Icom IC-9700 Transceiver RFI Kit - 12 Noise Reduction Filters
Icom IC-9700 Transceiver RFI Kit - 12 Noise Reduction Filters
SKU RFI-ICOM-9700
$79.95
1812760022 - Receiver Impedance/Isolation Transformers
Kenwood TS-890 Transceiver RFI and Noise Reduction Kit, RFI Range 1-300 MHz, 14 Filters
Kenwood TS-890 Transceiver RFI and Noise Reduction Kit, RFI Range 1-300 MHz, 14 Filters
SKU RFI-KENWOOD-890
$89.95
2654184350 - Receiver Impedance/Isolation Transformers
Kenwood TS520/ 530/820/830, Transceiver RFI Kit - 5 Noise Reduction Filters
Kenwood TS520/ 530/820/830, Transceiver RFI Kit - 5 Noise Reduction Filters
SKU RFI-KENWOOD-830
$39.95
1309885501 - Receiver Impedance/Isolation Transformers
Kenwood TS570, 590, 2000 Transceiver RFI Kit - 14 Noise Reduction Filters
Kenwood TS570, 590, 2000 Transceiver RFI Kit - 14 Noise Reduction Filters
SKU RFI-Kenwood-590
$89.95
On Sale
581498708 - Receiver Impedance/Isolation Transformers
Kurt Speaks Out - Digital PDF Version - Download Now!
Kurt Speaks Out - Digital PDF Version - Download Now!
SKU KURT-KSO-PDF
List price $14.95
Save 100%
$0.00
On Sale
581468958 - Receiver Impedance/Isolation Transformers
Laptop Computer with DC power RFI Kit - 7 Filters
Laptop Computer with DC power RFI Kit - 7 Filters
SKU RFI-Laptop
List price $34.95
Save 14%
$29.95
4029797253 - Receiver Impedance/Isolation Transformers
MAXI-CHOKER Coax Line Isolator/Choke, 1-61 MHz, 1.5/3KW/5KW, up to -60 Db Common Mode Rejection, Static Bleeder Option
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
3548913922 - Receiver Impedance/Isolation Transformers
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
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
4222605656 - Receiver Impedance/Isolation Transformers
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
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
1112255373 - Receiver Impedance/Isolation Transformers
MINI-CHOKER Coax Line Isolator, 500 Watts PEP, up to -38Db Common Mode Rejection, 1-61 MHz, 1:1 Unun
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
On Sale
930357572 - Receiver Impedance/Isolation Transformers
Multi Ratio 4:1/6:1/9:1 CUBE™ Balun, 1.8-61 MHz, 1.5 KW
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
On Sale
3882535254 - Receiver Impedance/Isolation Transformers
Multi Ratio 50:200 (4:1) & 50:450 (9:1) CUBE™ Unun, 1.8-60 MHz, 1500W, End Fed
Multi Ratio 50:200 (4:1) & 50:450 (9:1) CUBE™ Unun, 1.8-60 MHz, 1500W, End Fed
SKU CU-4-9-1500
List price $169.95
Save 24%
$129.95
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