“Join us for a webinar on Feb 16, 2017 at 9:00 PM EST Register now! –
JC N4IS covers the concepts and decisions to build your own WF low band high
performance receive antenna. Topics include:
1- What is a Waller Flag
2- Horizontal or vertical poles.
3- Common node noise, and detuning towers or TX antennas
4- Phasing lines and transformers
5- Feed lines and chokes
6- Preamplifiers, filter and R/T switches
7- How to measure pattern (polar plot)
8- How to test and evaluate results.
The Heil Parametric Receive Audio System Equalizer (PRAS EQ) is a state-of-the-art audio processor that enhances the internal audio systems of amateur... Read more
IC-705 There has been massive interest around the world about the new IC-705 QRP SDR transceiver since a concept model was shown at the Tokyo Hamfair... Read more
The LimeSDR Mini development board is a hardware platform for developing and prototyping high-performance and logic-intensive digital and RF designs t... Read more
Wipe out noise and interference before it gets into your receiver with a 60 dB null! Eliminate all types of noise — severe power line noise from... Read more
“The NanoVNA does many things. Two of which are testing coax cables for loss and length. Jim W6LG shows how to do both in this first video about... Read more