alan 3

25 links

40m loaded dipole - IZ0GIF
This is an short dipole for 7 MHz Total length of this dipole is just ...

[ Hits: 195 | Votes: 4 | Rating: 8.75 ]

Baluns: What they do and how they do it - W7EL
Article on Baluns and how they works what Problems are Baluns supposed to Solve Causes ...

[ Hits: 1576 | Votes: 3 | Rating: 6.7 ]
When and Where to Use Baluns - W4ULD
Baluns are usually used by Hams to feed dipole antennas with 50 ohm coax and ...

[ Hits: 1523 | Votes: 9 | Rating: 7 ]

160m Inverted Delta Loop - IK1MNJ
This 160 meter Delta Loop antenna is made of Hard drawn copper wire AWG 10 ...

[ Hits: 115 | Votes: 0 | Rating: 0 ]

Rolling your own balanced feed lines
An article by VE1VQ that illustrate how to home made a balanced feed line ...

[ Hits: 1884 | Votes: 1 | Rating: 10 ]

Chocking the End-Fed Antenna - VE3VN
Stop common mode current when transmitting with an end fed antenna Unbalanced antennas are very ...

[ Hits: 828 | Votes: 1 | Rating: 8 ]

Open Wire Feed Line a second look - N1II
Put up the longest dipole you can fit feed it with open wire line connect ...

[ Hits: 2682 | Votes: 8 | Rating: 6.69 ]

160 meter full wave loop antenna - K4QKY ^pop
The antenna is a 10 160 meter horizontal loop fed with 450 ohm ladder line ...

[ Hits: 97843 | Votes: 122 | Rating: 6.48 ]

S-MATCH Universal ATU
PA0FRI s S MATCH ATU published in RSGB s RadCom March 2003 The Balanced Universal ...

[ Hits: 5463 | Votes: 15 | Rating: 6.14 ]
A 100W Z-Match for 160m to 10m
This is a project by F5IMV devided to build a balanced Z match capable of ...

[ Hits: 2072 | Votes: 5 | Rating: 6.4 ]
A Homebrew Z-Match Transmatch - WB3GCK
A home made antenna tuner based on the W6JJZ basic concept that atches balanced loads ...

[ Hits: 1101 | Votes: 0 | Rating: 0 ]

DirectionalWaveguide - Seattle Wireless - Seattle Wireless
Waveguide antenna is a type of DirectionalAntenna and is a modified waveguide A waveguide is ...

[ Hits: 4986 | Votes: 3 | Rating: 6 ]

NZ Amateur Beacons - vhf.nz
A list of HF VHF UHF Beacon list from New Zealand All beacons from 20m ...

[ Hits: 35 | Votes: 0 | Rating: 0 ]

VK9NT Norfolk Island 2022 - VK9NT
Chris VK3QB Luke VK3HJ and Alan VK6CQ will be active from Norfolk Island IOTA OC ...

[ Hits: 66 | Votes: 1 | Rating: 10 ]

PSK31 The Easy Way
An illustrated and printable introduction to PSK 31 by by Alan J Gibbs VK6PG ...

[ Hits: 916 | Votes: 1 | Rating: 10 ]

New Zealand Repeaters
New Zealand Amateur Radio 70, 32 & 23 cm (UHF) Repeaters

[ Hits: 793 | Votes: 2 | Rating: 5.5 ]

Wellington Scanner Frequencies - New Zealand - Mike Clark
Wellington Scanner Frequencies NZ Webpage with scanner frequencies for Wellington and the surrounding regions Police ...

[ Hits: 264 | Votes: 1 | Rating: 1 ]

Balun_cmr Calculate common-mode impedance - VK2WB
This EXCEL Program Worksheet calculates the common mode impedance of a 1 1 Guanella current ...

[ Hits: 405 | Votes: 1 | Rating: 10 ]

Enhancing Frontend Performance with Optimized Band Pass Filters - PA3AKE
This article explores the nuanced design challenges of Band Pass Filters BPF in radio receivers ...

[ Hits: 82 | Votes: 0 | Rating: 0 ]

EMR Safety Compliance Calculator - David Burger VK2CZ (Author)
This spreadsheet replicates ALL the tables and lookups in the FCC ACMA and New Zealand ...

[ Hits: 557 | Votes: 6 | Rating: 6 ]