Amateur Radio News

Welcome to The Ladder Line. It's mostly a blog where I share things about amateur radio and occasionally other things.

Popular articles that you might be looking for are:

An Arduino based DDS-60 controller

QRP 40 meter CW transceiver

73 de KT1F


Drupal | Multiple authors for an article and Views with one to many relationships. Part two

In Part one I described the challenge of creating a view which displays a list of Articles (nodes) which have a multi-value reference field pointing to one or more Writers / Authors (users). We want each article to be listed only once regardless of how many writers it has and we want several fields from the related writers displayed below the article title etc.

Drupal | Multiple authors for an article and Views with one to many relationships. Part one

I know this is supposed to be a ham radio blog but I'm going to switch channels to Drupal for a moment.

I'd like to share my solution to a problem which I've encountered several times. Specifically, it is how to have more than one author for an article and display a list of articles using Views which shows the authors for each article in a natural way. More generally its a technique to merge the output of two views into one where there is a one to many or parent to child type relationship.

Antenna changes. We are now grounded!

The doublet antenna with ladder line as described here has been working well but I always felt a little uncomfortable because I knew that there was a problem which I hadn't faced up to. It was kind of cool to have the ladder line coming into the attic where I had a balun and automatic tuner and then coax to the shack in the basement but it had no lightning protection and no practical way of protecting it. So... I have made some changes.

Doublets, ladder line and automatic remote tuners

We're back in the old QTH of Wilton, New Hampshire.

Of course the first ham project here has been to get an HF antenna up. smiley I've put up the same multiband doublet I had at Mont Vernon. It's a classic doublet which is a half wavelength long on 80 meters fed in the center with ladder line.

Inexpensive AD9850 DDS boards on eBay

Hi everyone.

No updates for a while. We're getting ready to move house so I've been busy with lots of things around that.

Thanks to those who have emailed me reporting that they've built the Arduino DDS-60 controller.

Callsign lookup tool

I've been learning how to program with Microsoft Silverlight. I thought that a nice exercise would be to implement a callsign lookup application. Well... here it is smiley

New callsign - KT1F

I decided that it was time to get a shorter callsign so it's goodbye to KB1KGA and hello to ...


QRP 40 meter CW transceiver

I finally got my act together and built a transceiver. smiley It's for 40 meters CW and has about 4 watts output. Some of the details may be of interest to other homebrew experimenters.

The good news about Drupal

I have been playing with content management systems on and off for several years. I've had experience with and developed modules for DotNetNuke and have some part in the ongoing maintenance of a large Joomla site.

ARRL Field Day 2010

A few weeks ago I took part in ARRL Field Day with my local club, the Granite State Amateur Radio Association which operates with the callsign N1QC. We also had a GOTA ("Get On The Air") station for new hams operating as KB1NH.

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