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
Ferrite Snap On Combo Pack, Mix 31, RFI Range 1-300 MHz - 1/4, 3/8, 1/2, 3/4 - 22 filtersProduct DetailsBrand: Palomar EngineersUPC: Does not applyMPN: FSCP-31-22Type: NEWCountry/Region of Manufacture: United StatesMix 31 Ferrite Snap On Combo pack (RFI Suppression range is 1-300 MHz)
The Ferrite Snap On Combo Pack is a convenient solution for troubleshooting RFI/EMI with various diameter cables ranging from 1/4″ to 3/4″ for use as either single turn or multiple turn ferrite chokes.
The snap on chokes are useful for RF coax, AC/DC power cables, and device interconnection cables.
Always use a snap on ferrite with a larger inside diameter than the diameter of the cable and use multiple turns if possible (2 turns through the snap on is the same as 4 snap ons with 1 turns in series).
Included in the combo pack are our most popular snap on sizes as follows:
FSB31-1/4 – 1/4″ ID – 6 pieces
FSB31-3/8 – 3/8″ ID – 6 pieces
FSB31-1/2 – 1/2″ ID – 6 pieces
FSB31-3/4 – 3/4″ ID – 4 pieces
On Sale
Ferrite Snap on/Ring Combo Pack, Mix 31, RFI Range 1-300 MHz - 16 filtersFerrite Snap on/Ring Combo Pack, Mix 31, RFI Range 1-300 MHz - 16 filtersSKU FSRCP-31-16List price $112.00 Save 15%$95.00On Sale
FT240-3I, ID=1.4", AC/DC/Coax Noise Filter, RFI Range 1-300 MHz, Bulk Pack of 10FT240-3I, ID=1.4", AC/DC/Coax Noise Filter, RFI Range 1-300 MHz, Bulk Pack of 10SKU F240-31-10List price $100.00 Save 10%$89.95On Sale
Ferrite Snap On Combo Pack, MIx 75, RFI Range 150 KHz-10 MHz - 8 filtersFerrite Snap On Combo Pack, MIx 75, RFI Range 150 KHz-10 MHz - 8 filtersSKU FSCP-75-8List price $140.00 Save 22%$109.50
Mix 31 Ferrite Snap On Combo pack (RFI Suppression range is 1-300 MHz)
The Ferrite Snap On Combo Pack is a convenient solution for troubleshooting RFI/EMI with various diameter cables ranging from 1/4″ to 3/4″ for use as either single turn or multiple turn ferrite chokes.
The snap on chokes are useful for RF coax, AC/DC power cables, and device interconnection cables.
Always use a snap on ferrite with a larger inside diameter than the diameter of the cable and use multiple turns if possible (2 turns through the snap on is the same as 4 snap ons with 1 turns in series).
Included in the combo pack are our most popular snap on sizes as follows:
FSB31-1/4 – 1/4″ ID – 6 pieces
FSB31-3/8 – 3/8″ ID – 6 pieces
FSB31-1/2 – 1/2″ ID – 6 pieces
FSB31-3/4 – 3/4″ ID – 4 pieces
