Computer RFI Kits

Bullet Antenna End Fed Antenna Counterpoise Kit (41/71/92/111/155 Ft. Antenna Lengths)

BULLET-CPK-41-20
$14.95
In stock
1
Product Details
Brand: Palomar Enginees
UPC: Does not apply
MPN: BULLET-CPK
Type: NEW
Country/Region of Manufacture: USA

The “Bullet” End Fed Antenna Counterpoise Kit

Bullet 9U Antenna Counterpoises 08282022 png - Computer RFI Kits

Th kit contains 1 pre-assembled counterpoise wire which easily attaches to the counterpoise connector on the BULLET matching unit. Improves performance on 1 or more bands. Black/Gray/Blue wire is standard.

Application Note: This kit is typically used with only with Bullet Antenna systems like the 41 foot, 71 foot, 92 foot, 111 foot or 155 foot when you DO NOT USE the coax braid as the counterpoise (such as when you coax is too short). The counterpoise radiates just like the other half of a dipole so DO NOT GROUND IT! It is used to fine tune particular bands (by varying the length to get the lowest SWR reading on as many bands as possible. Multiple length counterpoises can also be used if needed for a particular band) if your particular antenna geometry doesn't show a low enough SWR on a particular band.

Suggested counterpoise lengths are as follows:

41 foot antenna wire needs a 16 foot length (20 feet of wire supplied so you can adjust as needed by folding back on itself)

71 foot antenna wire needs a 42-50 foot length (50 feet of wire supplied so you can adjust as needed by folding back on itself)

92 foot antenna wire needs a 90 foot length (100 feet of wire supplied so you can adjust as needed by folding back on itself)

111 foot antenna wire needs a 37 foot length (50 feet of wire supplied so you can adjust as needed by folding back on itself)

155 foot antenna wire needs a 95 foot length (100 feet of wire supplied so you can adjust as needed by folding back on itself)

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These RFI kits are specifically selected to cure most household computer device RFI problems. It contains ferrite toroids for AC or DC power supply protection and Snap On ferrite spli beads selected to eliminate RFI from 1 to 1000 Mhz. The beads are easy to use, don’t require modification of the protected equipment and work in almost all cases, even when plug-in filters fail. 

 

 

Typical Installations

 

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Ethernet Cable on F-240 Toroid – 7 turns

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Ethernet Cable on FSB-1/2 – 3 turns for 9X Impedance

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Ethernet Cable on FSB-1/4

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AC Cable on F-240 Toroid – 6 turns

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DSL Modem DC Power Supply on F114-43 Toroid – 5 Turns