quarter

82 links

Short antennas for 160m
Often it is not possible to erect a full quarter wave verticals especially on 160m ...

[ Hits: 1136 | Votes: 1 | Rating: 10 ]

40m Vertical End-Fed Antenna - G8ODE
A quarter wave vertical end fed antenna for the 40 meters band As all vertical ...

[ Hits: 2696 | Votes: 7 | Rating: 5.43 ]

80 meter Inverted L - N4HAY - ZS6RSH
Experiments with an 80 meter Inverted L Quarter wave antenna

[ Hits: 1141 | Votes: 0 | Rating: 0 ]

Helical Antenna Design Calculator
Helical antennas invented by John Kraus give a circular polarized wave They are one of ...

[ Hits: 2164 | Votes: 16 | Rating: 6.63 ]
Ground Plane Antenna Calculator - Buxcomm
This calculator is designed to give the vertical length of a quarter wave ground plane ...

[ Hits: 921 | Votes: 61 | Rating: 5.34 ]
Full Wave Loop Antenna Calculator - JJ Johnson ^updated
Use this online calculator to determine the length of a full wave loop antenna from ...

[ Hits: 931 | Votes: 7 | Rating: 6.14 ]
Vertical Antenna Calculator - JJ Johnson ^updated
Use this online calculator to determine the length of a quarter wave antenna from the ...

[ Hits: 924 | Votes: 9 | Rating: 6.32 ]

Refining an End Fed Antenna - AE6TY
Optimizing performances of the end-fed antennas QRP quarterly article

[ Hits: 1283 | Votes: 1 | Rating: 5 ]

Stealth Apartment Antenna - AJ4VD
Simple DIY stealth apartment antenna for 20m and 40m It is basically a ZigZag quarter ...

[ Hits: 3077 | Votes: 3 | Rating: 9.33 ]

Broadcast Antennas on Buildings - E.Laport
When a broadcast antenna is to be placed on top of a building there are ...

[ Hits: 358 | Votes: 2 | Rating: 10 ]

Tri-Band J-Pole - AF6SA
This strange looking antenna is a combination of Coupled Resonator principle by K9AY and a ...

[ Hits: 1923 | Votes: 5 | Rating: 9 ]

Quarter Waves and Velocity Factor - John Huggins
Coax Velocity Factor in Baluns Does it Matter Test results show coaxial cable velocity factor ...

[ Hits: 208 | Votes: 0 | Rating: 0 ]

The Gamma Match
The gamma match was originally invented as a means of feeding vertical monopole antennas for ...

[ Hits: 959 | Votes: 2 | Rating: 4.5 ]

PL259 Antenna
A simple VHF quarter wave antenna from PL25

[ Hits: 542 | Votes: 2 | Rating: 9 ]

160m Vertical Antenna Design
Design for a quarter wave vertical antenna for the top band in use at V31YN ...

[ Hits: 572 | Votes: 1 | Rating: 7 ]

WiFi Spider Antenna - Dave Gough.
Quarter wave omni-directional spider antenna for 2.4GHz 802.11b

[ Hits: 1010 | Votes: 8 | Rating: 7.5 ]

TCDXA Newsletter
Quarterly newsletter published by The Twin City DX Association

[ Hits: 205 | Votes: 0 | Rating: 0 ]

N7BYU Brigham Young University Amateur Radio Club - N7BYU
Brigham Young University Amateur Radio Club BYUARC was founded in 1949 and has been headquartered ...

[ Hits: 177 | Votes: 0 | Rating: 0 ]

Amphenol RF - Amphenol
Amphenol RF is a leading manufacturer of coaxial connectors for use in radio frequency microwave ...

[ Hits: 176 | Votes: 0 | Rating: 0 ]