Ham Radio Repeaters in Italy
January 17, 2012 – 2:27 pm | One Comment

An updated and  complete list of ham radio repeaters in italy, is mantained by IK2ANE  in his website, where you can download the  italian repeaters excel file
Here is  a subset of Italian ham radio Repeaters …

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Calculate safety distance from your antenna
October 12, 2011 – 10:25 pm | No Comment
Calculate safety distance from your antenna

DL9KCE released a new version of his ICNIRPcalc software that allows you to calculate safety distances for many know amateur radio antennas with respect to ICNIRP limits.
Calculations are done by considering many depending factors, like …

Double Extended Zepp Antenna
January 16, 2011 – 11:52 pm | 8 Comments
Double Extended Zepp Antenna

This antenna requires the use of Tuned Open wire feed line , ladder line , window line , etc.
NOT Coax cable !
It is suggested a 450 – 600 ohm line.
This antenna also requires the …

A Novice Multiband Vertical Antenna
January 16, 2011 – 8:06 pm | No Comment
A Novice Multiband Vertical Antenna

Putting your first ham radio station together can be an expensive proposition. One way to cut costs is to keep the antenna simple. Here’s how WB1FSB shaved the price and provided four band operation.
This old …

An Easy VHF UHF Antenna
January 16, 2011 – 11:09 am | No Comment
An Easy VHF UHF Antenna

This is a project of an easy to build dual band (UHF and VHF) j-pole antenna done with a common TV twin lead and some coax cable.
Original PDF document can be downloaded here

The 40 meter Stealth Vertical
September 19, 2007 – 11:32 pm | 10 Comments
The 40 meter Stealth Vertical

 
As published in antennex Dec. 2001
The 40 Meters band stealth vertical antenna by K7ZB
“You’re 30dB over 9 here…” So goes the consistently fine signal reports received from around the USA and beyond – on 40 …

An effective 10-20m DX antenna for deed restricted lots…
September 10, 2007 – 1:12 am | 8 Comments
An effective 10-20m DX antenna for deed restricted lots…

Original article by K7ZB

Results 
The simple 15′ vertical antenna shown mounted on the railing of our second floor deck has produced almost 200 countries worked around the world… VQ9′s in Chagos and 3B8′s on Mauritius in …

A cheap J-Pole antenna for 50 Mhz
May 28, 2007 – 10:54 pm | 6 Comments
A cheap J-Pole antenna for 50 Mhz

Need a general purpose antenna on “6 – the magic band” ?
The J-Pole is an easy-to-build and inexpensive device that provides an omni-directional vertically polarised antenna without the need for a ground plane. In technical …

Indoor antenna for 7 Mhz
January 14, 2007 – 11:11 pm | 11 Comments
Indoor antenna for 7 Mhz

I’m looking to setup a hidden / indoor antenna, and i’ve found a couple of interesting articles on hidden / stealth antennas 
This small antenna can allow hams which lack space to install an antenna for 40 meters. …

Super Loop Antenna
October 14, 2006 – 3:38 pm | 18 Comments
Super Loop Antenna

G5RV verses Superloop 80
Many operators with small lots, a G5RV is what can fit for the 80 and 40 meter bands. The G5RV is 102 feet long and has a 34 foot
section of twinlead followed …

A Small wire loop antenna for 160 to 10 meters
October 14, 2006 – 3:17 pm | 2 Comments

An easy-to-build general purpose receive only small wire loop antenna
As much as I like my coax loops, I am also quite satisfied with small loops made with wire or tubing. They have the same or …