“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
XIEGU G1M HF TRANSCEIVER | QUAD BAND | PORTABLE SDR | QRP | 5W SSB CW AW
XIEGU G1M [Entry Level QRP Transceiver] – With receiving 0.5-30 MHz generally and transmitting capabilities on four popular amateur radio bands,... Read more
RF-KIT RF2K-S Amplifier – Legal Limit Solid State PA
General Features: Output Power 1.8 – 30 MHz 2K+, 6m 1K+ Device: 2x BLF189XR Auto Band Selection ICOM®; YAESU® Band data Interface CAT Connectivity LAN... Read more
HF Clock / Satellite Tracker /Solar Index Touchscreen Terminal
HFClock Internet Based Clock System – 9″ Tiger Maple Frame The HFClockTM represents the industry’s first highly integrated clock designed... Read more
![MB1 SDR HF/6M/VHF Transceiver, Expert Electronics [ Hamvention ]](https://qrznow.com/wp-content/uploads/2019/05/SUN-SDR2-190x122.jpg)
Bird Sitehawk , Antenna/Cable Analyzer, Spectrum Analyzer
“This is the Bird43 that everyone knows, ON STEROIDS! LOL… I had no idea Bird came to this, so I wanted to share it with you. Something th... Read more
DX Engineering RT4500HD Heavy Duty Rotator
SPECIAL ANNOUNCEMENT: We are introducing the DX Engineering RT4500HD Heavy Duty Rotator pic.twitter.com/xxjFk0QW4D — DX Engineering (@DXEngineering) M... Read more
Elecraft K4 – Price list!
Elecraft K4 STANDARD FEATURES Size: 4.5”H x 13.5”W, 10” D Weight: Approx. 10 lbs Supply Voltage: 12-15 VDC Current: ~2 A RX, ~18-23 A TX Frequenc... Read more
Elecraft K4 – High Performance Direct Sampling SDR
Elecraft K4 OVERVIEW A direct-sampling SDR you’ll love to use Our new K4 harnesses the latest in signal processing while retaining the best aspects of... Read more
DX Engineering UCGC-Z Universal Copper Grounding Clamps
DX Engineering Universal Copper Grounding Clamps DXE-UCGC-Z DX Engineering Universal Copper Grounding Clamps are custom designed to provide a ground r... Read more
Review
Ailunce HS1 First Impressions HF SDR Radio!
A short-wave radio station is a radio communication device that operates at a wavelength of 100 to 10 meters (frequency of 3 to 30 MHz). Mainly used f... Read more
![Elecraft Announce K4 SDR at Hamvention 2019 [ VIDEO ]](https://qrznow.com/wp-content/uploads/2019/05/60357783_1261784310641760_5710649015670931456_n-190x122.png)
Comet CAA-500 MK2 Antenna Analyzer Preview
CAA-500MARKII SWR/Impedance Analyzer Highly accurate analog cross needles display SWR and impedance simultaneously. Full color TFT LCD display screen... Read more
RigPi RigPi MFJ-1234 Station Server, Remote Ham Radio @Hamvention
RigPi MFJ-1234 “Our first look at the brand new RigPI Remote station server called the MFJ-1234. This little beauty allows you to connect and co... Read more
Palstar AT2KD Review & How to Use a Differential Antenna Tuner
“Jarrad VK3BL reviews Palstar’s AT2KD and talks about the advantages of having a large, high powered tuner even if you only run barefoot.... Read more
IC-9700 Review and Smackdown vs the IC-910H
George and Tommy from AmateurLogic review the IC-9100 with Ray Novak, N9JA from Icom. In this classic smackdown episode, the IC-9700 goes up against t... Read more
![The new Elecraft K4 [ VIDEO ]](https://qrznow.com/wp-content/uploads/2019/05/Elecraft-K4-90x60.jpg)
![The new Elecraft K4 [ VIDEO ]](https://qrznow.com/wp-content/uploads/2019/05/Elecraft-K4-180x120.jpg)
