Model CB-6-1500 is a 6:1 (300:50) voltage balun housed in a Nema enclosure box (4″ x 4″ x 2″) with two top studs capable of input power levels up to 1.5KW PEP/500 watts continuous when used with a matched load. The 6:1 ratio takes 50 ohms input and matches to 300 ohms balanced output from 1.8-61 MHz with SWR < 1.5:1 under matched load conditions. A great balun for windoms, OCF antennas >60 feet over ground, Hertz and folded dipole antennas, T2FD etc. Dual core, Ruthroff style balun. Choose version with side eye bolts for wire attachments for OCF dipole use.
CUBE™ Vertical Antenna Feed Line Choke, 1.8-61 MHz, 1.5KWProduct DetailsUPC: Does not applyBrand: Palomar EngineersMPN: CUV-1-1500, CUV-1-5000Type: NewCountry/Region of Manufacture: United StatesEffective Frequency Range (MHz): 1-61 MHzPEP Power Rating (watts): 15005000Estimated Insertion Loss (db): .10Input Connector Type: SO-239 femaleOutput Connector Connector Type: 1/4" stud/wing nutGround Connector (Y/N): 1/4 stud/wing nutEnclosure Size (LxWxH inches): 4 x 4 x 2Feed Line Chokes for Vertical Antenna with radials/counterpoise
Feed line chokes for verticals require a special arrangement to isolate the coax feed line from the radials and ground system. Schematically, a good feed line choke for verticals with radials should be built as follows:
Our CUV-1-1500 and CUV-1-5000 feed line chokes are all internally connected to isolate the coax feed line as shown above.
1500 Watt Rated 1:1 Feed line Choke (Unun) for Verticals with radials
Th CUV-1-1500 unun is a common mode feed line choke for vertical antennas with radials that need to be isolated from the coaxial feed line to keep common mode current from using the coaxial braid as another radial. Very effective with high choking of 1K-5K from 1.8-61 MHz and also incorporates two side studs/wingnut terminals for radial or ground connection at the antenna while isolating the coax feed line braid from the radials via the internal common mode feed line choke. Top terminal with stud/wingnut for vertical connection enclosed in a 4″ x 4″ x 2″ box..
To reduce receiver common mode noise for long runs of coax to your antenna, use a MC-1-1500 or CU-1-1500 feed line choke at the station end of the coax.
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Bullet End Fed Antenna System with 9:1 Matching Unit, Antenna Wire, + Feedline Choke - 100/500/1500 Watt, 41' (40-6M), 71' (80-6M)/111'(80-6), 155'(160-6M)/173'(AM, 160-6M) Options - FREE USA ShippingBullet End Fed Antenna System with 9:1 Matching Unit, Antenna Wire, + Feedline Choke - 100/500/1500 Watt, 41' (40-6M), 71' (80-6M)/111'(80-6), 155'(160-6M)/173'(AM, 160-6M) Options - FREE USA ShippingSKU BAS-41-100$109.95
Feed Line Chokes for Vertical Antenna with radials/counterpoise
Feed line chokes for verticals require a special arrangement to isolate the coax feed line from the radials and ground system. Schematically, a good feed line choke for verticals with radials should be built as follows:
Our CUV-1-1500 and CUV-1-5000 feed line chokes are all internally connected to isolate the coax feed line as shown above.
Th CUV-1-1500 unun is a common mode feed line choke for vertical antennas with radials that need to be isolated from the coaxial feed line to keep common mode current from using the coaxial braid as another radial. Very effective with high choking of 1K-5K from 1.8-61 MHz and also incorporates two side studs/wingnut terminals for radial or ground connection at the antenna while isolating the coax feed line braid from the radials via the internal common mode feed line choke. Top terminal with stud/wingnut for vertical connection enclosed in a 4″ x 4″ x 2″ box..
To reduce receiver common mode noise for long runs of coax to your antenna, use a MC-1-1500 or CU-1-1500 feed line choke at the station end of the coax.
