Copyrights, Designs and Intellectual Property

The mix of protections for intellectual property

Is anyone else confused by the control some antenna designers try to maintain over the use of their unpatented creations?

LOTW Import gets around ADIF Mode Limits

Logbook of the World accepts non-ADIF-compliant mode values to ensure compatibility with contests like Field Day.

For Sale Heathkit SB-102 with HB-23-A PS/Speaker

I am selling this radio for a friend. He is the original owner and builder. It is a Heathkit SB-102 transceiver with HB-23-A external power supply with speaker. This includes the original two-pin microphone. This thing is old… very very old. It does power up as shown in the photographs below. I did attach my … Read more

Geo. Coordinate Transmission Efficiency

Time to send geographic coordinates

What’s the best format to send your geographic coordinates using Morse Code? Degrees, Degrees-Minutes, Degrees-Minutes-Seconds, Grid Squares? We take a look at the various formats and use a stopwatch to measure the send time.

Help: How can I Migrate Microsoft Works 2004 Logs to New Program

K3CDQ asks: I have an old computer with lots of 2002, 3 and 4 software on it. I have thirty years of ham contacts logged in a data base that I worked up using Microsoft Works 2004. I now have a new computer with all 2010 and 2011 software on it and running XP. I … Read more

Review of DX Engineering BAL050-H05-A Balun

For quite a few years I have used the DX Engineering Maxi-Core Balun model number BAL050-H05-A.

I needed some quick deploy Baluns for the 80 Meter Turnstile Antenna covered earlier on Ham Help Desk.

Also purchased were two DXE-UWA8X-KIT products which provide hoisting points and strain relief for RG-8 size coax.

Read moreReview of DX Engineering BAL050-H05-A Balun

Solar Energy PV Payback Period

Solar energy from photo-voltaic (PV) panels is a great thing to show off at the ARRL Field Day, but economic realities and lengthy ROI periods continue to make it financially unsound for home use.

Young Attracted to PSK31

During Field Day 2008 we carefully observed what operating modes the young teens did and did not enjoy while they operated. Without a doubt the digital modes, especially PSK31, got their attention.

Teenager and a younger boy sharing PSK31 contacts on an HF station.
Teenager and a younger boy sharing PSK31 contacts on an HF station.

The older of the two, KJ4FAJ, in the picture above said this when he made his first PSK31 contact just after midnight during Field Day…

Read moreYoung Attracted to PSK31