50:300 (6:1) CUBE™ Unun, 1.8-61 MHz, 1500/5000 Watts PEP, End Fed, Vertical, SloperProduct DetailsFrequency Range < 2:1 SWR (MHz): 1.8-61PEP Power Rating (watts): 1500/5000Insertion Loss (dB): .15Input Connector: SO-239Output Connector(s): Wingnut/EyeboltTransformer Topology: Broadband FerriteHardware Type: StainlessEnclosure Size: 4" x 4" x 2"Weight (pounds): 2Antenna Compatability: verticals, slopersPurpose. The CU-6-1500 is used as a 6:1 (300 ohm unbalanced load to 50 ohm unbalanced source) broadband transformer for 50 ohm coax cable rated at at 1500 PEP into 300 ohms unbalanced load from 1.8-61 MHz. Excellent for certain verticals and also slopers (51', 85' or 119" work great)
USE: The top connector is for the 300 ohm unbalanced output, and the side connector is for a ground rod or radial connection.The SO-239 input connector shield/ground is shared with the ground connector.
For best results use a feed line choke between the CU-6-1500 and the coax input to isolate the coax from becoming part of the antenna. Our Maxi-Choker (MC-1-3000) is an excellent companion for this unun.
CU-6-1500 and CU-6-5000 are in a 4" x 4" x 2" NEMA enclosure and weighs 2 and 4 pounds respectively. Both are customer made to order so expect 14 days shipment after order.
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Snap On RF Choke/Isolator - 1/2"/12.7mm cable -5/10/15 Bead Option, 3-300 MHzSnap On RF Choke/Isolator - 1/2"/12.7mm cable -5/10/15 Bead Option, 3-300 MHzSKU SNO31-1/2-5List price $29.95 Save 13%$25.95
Purpose. The CU-6-1500 is used as a 6:1 (300 ohm unbalanced load to 50 ohm unbalanced source) broadband transformer for 50 ohm coax cable rated at at 1500 PEP into 300 ohms unbalanced load from 1.8-61 MHz. Excellent for certain verticals and also slopers (51', 85' or 119" work great)
USE: The top connector is for the 300 ohm unbalanced output, and the side connector is for a ground rod or radial connection.The SO-239 input connector shield/ground is shared with the ground connector.For best results use a feed line choke between the CU-6-1500 and the coax input to isolate the coax from becoming part of the antenna. Our Maxi-Choker (MC-1-3000) is an excellent companion for this unun.
CU-6-1500 and CU-6-5000 are in a 4" x 4" x 2" NEMA enclosure and weighs 2 and 4 pounds respectively. Both are customer made to order so expect 14 days shipment after order.
Christmas lights or yard lights with switching DC power supplies are often the RFI source and a clamp on ferrite bead on the AC AND the DC side feeding the lights is needed to help suppress the switching power supply RFI noise. Suitable snap on beads are FSB31-1/2 for the 1-250 MHz range.
We have also had reported wireless HDTV boxes, and FOSCAM and AMCREST security camera systems causing RFI to garage door remote openers. Use our Garage Door Opener RFI kit to suppress the interference to the opener (VICTIM) – you need one kit for each opener. Maximize the distance from the camera to the openers may also help. Additionally shield cable to the garage door sensors may be needed depending on severity of the camera RFI.
Obvious Tech Note: make sure your remote batteries have enough energy to activate the GDO or the signal they transmit may not be large enough to over ride the RFI signal, but a fresh battery may be able to overcome the weak RFI source and allow the GDO to operate correctly.