5:1 CUBE™ Unun – Model CU-5-1500 (50:250 Ohm, 1.8-61 MHz, 1.5KW PEP)
Application. For traveling wave, end fed or portable 20-31 foot vertical antennas the 5:1 unun makes a good transformer for converting 50 ohm coax to a 250 ohm feed point. If you use the antenna on multiple bands, the feed point impedance may not always be 250 ohms and use of the unun at high (>350 ohms) or low (<100 ohms) will require reduced power input or the unun may have its power ratings exceeded and damage to the unun may occur. The (5:1 conversion ratio will change for loads other than 250 ohms unbalanced.
Typical application:
Also available as a balanced output – CB-5-1500
Dirty Electricity Filters
“Dirty Electricity” is high frequency noise on 50/60 Hz. power lines, 120 VAC or 240 VAC caused by many sources including electronic devices on the AC power lines and AC power generators including solar and wind generators. The frequency range of the interference is typically 25 kHz to 500 kHz and may affect electronic devices powered by the AC lines as well as other objects (including living ones) in the capture area of the noise.
Effective filtering of the AC power lies can help suppress the dirty electricity in your home, business office or industrial environment. We suggest the following AC power line filters that are easily installed on specific equipment bothered by dirty electricity
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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
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Ferrite Mini Snap On Combo Pack, Mix 61, RFI Range 200-2000 MHz - 6 filters
Ferrite Mini Snap On Combo Pack, Mix 61, RFI Range 200-2000 MHz - 6 filters
SKU FMSCP-61-6
List price
$55.00
Save 9%
$49.95
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Ferrite Mini Snap On Combo Pack, Mix 75, RFI Range 150 KHz-10 MHz - 6 filters
Ferrite Mini Snap On Combo Pack, Mix 75, RFI Range 150 KHz-10 MHz - 6 filters
SKU FMSCP-75-6
List price
$85.00
Save 6%
$79.95
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Generic Computer Equipment/Ethernet RFI Kit - 10 Filters
Generic Computer Equipment/Ethernet RFI Kit - 10 Filters
SKU RFI-COMPUTER
List price
$59.95
Save 17%
$49.95
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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
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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
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SMART TV RFI/Noise Reduction Kit - AC Power + 4 I/O (HDMI, Audio) cables
SMART TV RFI/Noise Reduction Kit - AC Power + 4 I/O (HDMI, Audio) cables
SKU RFI-HDTV
List price
$89.95
Save 67%
$29.95
Dirty Electricity Filters
“Dirty Electricity” is high frequency noise on 50/60 Hz. power lines, 120 VAC or 240 VAC caused by many sources including electronic devices on the AC power lines and AC power generators including solar and wind generators. The frequency range of the interference is typically 25 kHz to 500 kHz and may affect electronic devices powered by the AC lines as well as other objects (including living ones) in the capture area of the noise.
Effective filtering of the AC power lies can help suppress the dirty electricity in your home, business office or industrial environment. We suggest the following AC power line filters that are easily installed on specific equipment bothered by dirty electricity
