Search Results for "coax length"
19 links
Antennas : 20M : 20 meter Vertical Antennas
 Vertical antenna for 201510 m
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 This is a vertical multiband antenna made up of several aerial elements lambda/4 length, feeded with just a coaxial cable in French.
[ Hits: 19436  Votes: 15  Rating: 5.54 ]
 An Inexpensive Vertical Antenna for 2m
 This antenna is constructed from RG58 coax and a length of 1.5 m PVC pipe
[ Hits: 1492  Votes: 1  Rating: 8.00 ]
 Bazooka dipole for 70 cm band
 Here is a very simple 70cms dipole from Harald PD2HFE, which uses a single piece of
RG213 coaxial cable 34 cms in length.
[ Hits: 13159  Votes: 17  Rating: 5.60 ]
 Coaxial cable dipole for 80m
 Here are some simple antennas you can build along with calculators to help you get the right length.
[ Hits: 2804  Votes: 1  Rating: 5.00 ]
 A 1:1 Coaxial Balun
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 PDF article about a coaxial 1:1 balun, original concept by I4BBE using a quarterwavelength and the threequarterwave adapting sections with the 50Ohm coaxial cable by I0QM
[ Hits: 42378  Votes: 20  Rating: 7.68 ]
 A Cost Effective Currentmode 1:1 Balun
 A cost effective currentmode 1:1 balun can be constructed from a length of coax and a rod typically used for a broadcast antenna loopstick, some electrical tape, cable ties, a length of PVC waterpipe and some connectors.
[ Hits: 7540  Votes: 1  Rating: 10.00 ]
 The Guanella 1:4 balun
 A cost effective currentmode 1:4 balun can be constructed from two lengths of coax, two ferrite rods, some electrical tape, cable ties, a length of PVC waterpipe and some connectors. This form of 1:4 currentmode balun is named after G. Guanella.
[ Hits: 3370  Votes: 1  Rating: 10.00 ]
 Coax Dipole Calculator
 An efficient program to calculate dimensions of coax dipoles, or bazooka antennas considering velocity length of different coax cables. Express dimensions in feet/inch and meters/cm. Freeware by VE3SQB
[ Hits: 9866  Votes: 45  Rating: 5.22 ]
 Choke coax length
 Discussion about choke length
[ Hits: 2248  Votes: 2  Rating: 5.50 ]
 Coaxial antennas
 G3TXQ study on coaxial cable demonstrate that it can reduce an element's length by something approaching the Velocity Factor of the cable
[ Hits: 1116  Votes: 1  Rating: 10.00 ]
 Full Wave Loop Dimensions
 This article contains the measurements for building a full wave loop using wire and length of 1/4 Wave
Coax Matching Transformer
[ Hits: 497  Votes: 2  Rating: 5.50 ]
 Simple Coax Mag Loop Antenna
 A homemade Magnetic Loop antenna from a spare 3m length of RG213 working from 30m to 15m with a 130pF tuning capacitor
[ Hits: 947  Votes: 3  Rating: 5.33 ]
 Quarter Waves and Velocity Factor
 Coax Velocity Factor in Baluns, Does it Matter?
Test results show coaxial cable velocity factor does not always enter into stub length calculations especially in the world of Baluns
[ Hits: 89  Votes: 0  Rating: 0.00 ]
 Matching with onetwelfthwavelength feed line
 Matching with a half wave or wuarter wave coaxial cable is pretty well known, but an existing 1961 system to do that with two onetwelfthwavelength transmission lines.
[ Hits: 343  Votes: 0  Rating: 0.00 ]
 CoaxTrap
 This program let you design of antenna trap using length of coaxial line wound as solenoid on a coil former.
[ Hits: 5075  Votes: 9  Rating: 3.78 ]
 Bootstrap coax traps for antennas
 Analysis of an antenna trap where a coil is formed of a length of coax cable, the outer conductor of one coax end is tied to the inner conductor of the other coax end, and the remaining connections form the terminals for the trap.
[ Hits: 1059  Votes: 1  Rating: 10.00 ]
 Windom Antenna with 4:1 balun
 The Windom is an Offcenter wire multiband Antenna. The old version was fed just by a singlewire connected on 1/3 of antenna's overall length or with an openline feeder (later versions). Here is another model with coaxial feeder, which is compatible with Solid States  50 Ohm output transceivers .
[ Hits: 7222  Votes: 4  Rating: 6.00 ]
 Coaxial Cable & Power Handling
 This calculator can be used to estimate the attenuation (dB loss), power handling capability, and transmission efficiency for some of the more popular Wireless Communications and MIL Spec cables at the frequency of interest
[ Hits: 979  Votes: 8  Rating: 8.17 ]
 Measure Impedence of Coax Cables
 This video shows one way to use a scope and function generator to measure the length of a piece of coax transmission line as well as estimate its impedance
[ Hits: 249  Votes: 0  Rating: 0.00 ]
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