Version 3.0 of our popular traps are now available. Version 3.0 are supplied with 4 high quality Cornell Dubilier CDV16 RF Mica capacitors for greatly improved performance. The new capacitors improve the Q of the traps, and in doing so, improve their isolation, making antenna adjustment easier.
______________________
Amended instructions – 22 June 2015
A few people have reported getting odd results with our traps. As a result I did some SPICE modelling and found that the problem was due to the use of long test leads between the antenna analyser and the traps. This introduces capacitance across the traps giving incorrect readings. The photograph below shows a low capacitance test lead that works just fine.
See More: Link
Elements of the US Department of Defense (DOD) will conduct a “communications interoperability” training exercise November 4-6, once again simulating... Read more
Arecibo tour given to Valerie NV9L and Jerry WB9Z by Angel WP3R on the platform and under the dish for Ham Nation. Read more
Where did the term, Ham Operator come from? Why are we Hams? When does Ham Radio first appear in a publication? Read more
Automated Portable Station for tracking the orbit of ham satellites, meteorologic satellites and International Space Station (ISS). The transce... Read more
The new RSPduo from SDRplay was released at this year’s Hamvention in Dayton and provides a dual tuner SDR receiver. Each of the two tuners can operat... Read more
Sasha M6IOR and Sophie M6NYX have made available a Guide for the reception of NOAA satellite images using software defined radio on Windows or MacOS.... Read more
The Mount Diablo Amateur Radio Club (MDARC) Disaster Recovery Program for the 2018 Carr and Camp Fires has made a $1,000 grant to the California Amate... Read more
Field Day 2015 A flea powered radio trying to make contacts during the year’s most popular contest. How many contacts can be made with QRP SSB d... Read more
Source: ARRL The ARRL has filed a formal complaint with the FCC, alleging that The Home Depot home improvement chain has been illegally marketing cert... Read more
“RadioSet-GO, your source for unique, trail friendly QRP radio designs; simple, efficient, portable, and attractive all-in-one low power... Read more
A satellite antenna can be made from 3 mm copper or aluminum elements, PVC boom, and some parts you may already have at home. To download the plan (hi... Read more
Metrovna and ‘a modern antenna analyzer designed for amateur radio.It allows you to measure all the parameters of an antenna as SWR, R, X, Z,Phase,RL,... Read more
Over 25 years of experience in development of new transverter technologies led to this masterpiece of VHF technology. Implementing technological innov... Read more
“Unboxing, building and using the QRP Labs QCX single-band, 5-watt QRP radio. This advanced technology radio borrows ideas from software-defined... Read more
The Radio Club of America (RCA) has announced its 2020 award recipients and fellows, several of whom are radio amateurs. Recipients and fellows will b... Read more
Recent Posts
Communications Interoperability Training with Amateur Radio Community Set
Arecibo Tour 2017
Why Are We Called Hams?
![Automated Portable Station for tracking the orbit of ham satellites [Video]](https://qrznow.com/wp-content/uploads/2017/05/hamlince-265x168.jpg)
Automated Portable Station for tracking the orbit of ham satellites [Video]
SDRplay RSPduo Review by Mike Richards ( RadCom )
DIY Weather Satellite Ground Station
Mount Diablo Amateur Radio Club Assisting in Restoring Fire-Damaged Repeaters
Field Day 2015 – QRP with the Yaesu FT-817 in the Pouring Rain
ARRL Complains to FCC About The Home Depot’s Marketing of RF Lighting Devices
YouKits HB1B upgrade
DIY Satellite Antenna DU1AU
Metrovna modern antenna analyzer
TR 144 – PRO, Transverter for the 2m band
Review of QRP Labs QCX QRP Radio
Radio Club of America Announces 2020 Award Recipients and Fellows
There are no ads, please add some
Warning: file_get_contents(https://plusone.google.com/_/+1/fastbutton?url=https%3A%2F%2Fqrznow.com%2Fhf-antenna-traps-v3-0%2F): failed to open stream: HTTP request failed! HTTP/1.0 404 Not Found in /home/qrznow/public_html/wp-content/themes/goodnews5/framework/functions/posts_share.php on line 151
