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
Audio RFI Suppressor for XLR cables - Simple in line filtering with male/female extension, Select AM Broadcast or Ham Band Filter RangeProduct DetailsMPN: RFI-XLR-AM, -HAMCountry/Region of Manufacture: USASuppresses radio frequency interference (noise) on balanced audio lines using triple filtering with:
¨ Shielded cable protection
¨ Highly Effective Inductive Ferrite Filter
¨ Effective for RFI
Select RFI-XLR-AM for broadcast band filtering (500 Khz-5 MHz)
Select RFI-XLR-HAM for 3-30 MHz ham bands 80-10 meters
Up to 30 dB common mode noise suppression
Use for interference from transmitters, wireless mic, and noisy power supplies. Install in series with cables for mic, line, amp/preamp interconnects, and speakers.
Standard cable length is 6 feet.
Suppresses radio frequency interference (noise) on balanced audio lines using triple filtering with:
¨ Shielded cable protection
¨ Highly Effective Inductive Ferrite Filter
¨ Effective for RFI
Select RFI-XLR-AM for broadcast band filtering (500 Khz-5 MHz)
Select RFI-XLR-HAM for 3-30 MHz ham bands 80-10 meters
Up to 30 dB common mode noise suppression
Use for interference from transmitters, wireless mic, and noisy power supplies. Install in series with cables for mic, line, amp/preamp interconnects, and speakers.
Standard cable length is 6 feet.