Amateur Radio Product Reviews

Nelson Antennas 2m rollup antenna review

January 20, 2021January 10, 2021

Review of the smallest portable 2m antenna on the market producing full size dipole performance and stows into your pocket.

Diamond CP22E Antenna Review

October 10, 2018February 19, 2017

Despite some antenna gain hype, the Diamond Antenna CP22E 2m base station antenna is a remarkable design achieving 5 dBi directivity in a slim low-profile design.

EFHW LNR Precision EF-10/20/40MKII Test Data

May 18, 2019April 16, 2012

SWR Measurements of LNR Precision EF-10/20/40 End Fed Antenna

Basic tests of the LNR Precision EF-10/20/40 multi-band portable HF EFHW antenna including S11, SWR and a bandwidth check of the match box.

EFHW LNR Precision EF-10/20/40MKII Examination

May 22, 2018April 15, 2012

Schematic of LNR Precision 10/20/40 Portable Antenna Matchbox

The background and details of the LNR (Par Electronics) EF-10/20/40 end fed half-wave multi-band portable HF antenna. Come see what’s inside the mysterious “black box.”

Headsets are an excellent accessory for your amateur radio station. There are so many to choose from it might seem overwhelming to pick one. They come in large sizes to small and work with some radios while not with others. This is a description of the process I used to select my headset in the hopes it will help others decide if, when and which headsets they should consider.

DX Engineering 8 Port RF Coax Switch Review

May 31, 2018August 22, 2008

A close look at the DX Engineering RR8-HP eight port coax switch with lots of pictures including interior views.

JL Logger – Logger for Java Run Time Environment

August 15, 2010July 28, 2008

I guess it was only a matter of time before Java made its way into the world of ham radio. Really, Java has been at the forefront of computing for some time. Whenever a programmer friend asks me if they should port their popular program to Java I say “why bother, Java is just too slow.” That was then and this is now.

Java is still slower than directly compiled programs, but computers are so fantastically fast these days, this issue is becoming not an issue.

One of the participants on the Sunday Night Tech Net mentioned he is reviewing and modifying a new, too him anyway, JAVA based contest logger.

Enter JL Logger…