“Join us for a webinar on Feb 16, 2017 at 9:00 PM EST Register now! –
https://attendee.gotowebinar.com/register/7735767269616129539
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.
73
Ken K4ZW”
Videos
Equipment
DR4020 Dual band Digital QRP radio
A simple QRP digital transceiver. — Fully assembled and tested– Perfect for outdoor digital radio contacts,such as FT8,FT4,JT65 etc. Band: 20... Read more
INRAD W1 Headset with Boom Mic.
THE INRAD W1Ham radio never sounded so good! Comfortable over-the-ear earpieces with large diaphragm high response speakers Full stereo reception to a... Read more
IC-PW2 Prototypes Shown at Tokyo Hamfair 2019
IC-PW2 ICOM Icom Inc. will be unveiling new product innovations at the Tokyo Hamfair, taking place in Ariake, Tokyo on August 31st – September 1... Read more
![ICOM IC-705 [New]](https://qrznow.com/wp-content/uploads/2019/08/705-1068x601-190x122.jpg)
ICOM IC-705 [New]
ICOM IC-705 IC-705 has just been unveiled by Icom at the Tokyo Ham Fair. This is a portable HF/VHF/UHF transceiver featuring SDR technology, internal... Read more
EB104 HF Power Amplifier – 2,4KW water cooling system 5″ LCD touch screen for N0JSN
HF/6m linear amplifier 2400W MRF1K50H 2 pcs water cooling system 5″ LCD touch screen for N0JSN Read more
NEW LNA + FILTER FOR RADIO ASTRONOMY HYDROGEN LINE OBSERVATIONS RELEASED BY NOOELEC
NooElec have recently released a new LNA + filter combo called the “SAWbird+ H1 Barebones” which significantly lowers the entry bar for ne... Read more
PTRX-7300 Panorama Adaptor for the IC-7300
A panorama adapter for the IC-7300? What’s the point, you might ask, the IC-7300 has such a nice spectrum and waterfall display? Right, but unfo... Read more
EXTRAFLEX BURY /.400″ – Low loss Coax Cable
EXTRAFLEX BURY /.400″ [10,3 mm / 0,405 inches Cable] WHY CHOOSE THIS CABLE: – The only 10,3mm coax that can be use bo... Read more
Ultra-compact transceiver Lab599 Discovery TX-500
The Lab599 Discovery covers 160-6 meters, all modes, with a maximum power output of 10 W. It comes with true desktop-radio features, like auto-notch,... Read more
Review
Buddipole PowerPlus | Rugged Portable DC Power Management System
DESCRIPTION Rugged Portable DC Power Management System with built-in High-Efficiency Battery Charger! > High contrast OLED display > Power manag... Read more
Man climbs 400-foot TV tower at WKMG News 6 in Orlando
ORLANDO, Fla. — OrlaThe man has climbed the tower outside of the WKMG studios on John Young Parkway.ndo police have been called to a local TV station... Read more
Digital Cables and Connectors we see and use in the Ham Shack
“Ken, “Digital Dorsey”, KA8OAD talks about various types of USB, HDMI and DVI cables used around the radio shack.” Read more
NEW! Yaesu FT3D C4FM Handheld Review/Comparison C4FM Handheld Review/Comparison
Yaesu FT3D C4FM Handheld Review/Comparison FT3DR 2 m/70 cm Dual-Band Handheld 5 W C4FM/FM Dual Band Digital Trans... Read more
Review of CW Morse Paddles with weighted base
“CW Morse (cwmorse.us) makes a variety of inexpensive, 3D-printed Morse code keys. They’ve now added paddles for iambic keyers to their li... Read more
![DR9A – VHF – UHF – Super Contest station [ Video ]](https://qrznow.com/wp-content/uploads/2019/09/DR9A-90x60.jpg)
![DR9A – VHF – UHF – Super Contest station [ Video ]](https://qrznow.com/wp-content/uploads/2019/09/DR9A-180x120.jpg)
