“How high should a dipole be? What happens if it’s too low or too high? We turn to EZNEC antenna modeling software to see that the old rule of thumb of one half wavelength is correct. But there are lots of things going on!”
Equipment
Vectronics HFT-1500 OLLER TUNER, HF, 1500W, BAR GRAPH, SWR/WATTMETER
Arc-Free Operation Two heavy duty 4.5 kV transmitting variable capacitors and a massive high current roller inductor gives you arc-free operation up t... Read more
Amplifier 1.2 kW Spert 1200 – 1.8 to 50 MHz
Output power of 1200 W CW / SSB in the field KF, 700W in the band of 50 MHz Power 50V 35A efficiency of 73-75% frequency range 1.8 to 50 MHz switching... Read more
SPE Expert 1.5K-FA Linear Amplifier
300W • -60dB Product Specifications Powerful: solid 1.5kW in on on all modes. Very Light: about 10 kgs (about 22 lbs). Very Small: H 12, W 28, D 36 cm... Read more
![Yaesu FTdx101D [ VIDEO ]](https://qrznow.com/wp-content/uploads/2019/01/ftdx-101d_________a-190x122.jpg)
Yaesu FTdx101D [ VIDEO ]
In homage to YAESU Musen Founder, Sako Hasegawa, Yaesu Japan is excited to introduce a new High-Class HF/50/70MHz Transceiver, the all-new FTdx101D (1... Read more
Review
Unboxing and Testing the Yaesu FT-891 : Ham Radio 2.0: Episode 67
Yaesu‘s newest HF mobile radio has some cool new features, but leaves out other options of its predecessors. Let’s take a look at the radi... Read more
MFJ-1835H Cobweb Antenna Review ( High Power version 1.5kW)
For restricted spaces, 5-Bands: 20/17/15/12/10 Meters . . . Restricted space spoiling your operating fun? MFJ Cobweb puts your call back on the map! T... Read more
Antenna
Chameleon Portable HF Antenna Deployment Configurations
There is no shortage of ways to deploy a Chameleon Hybrid-mini/micro antenna! In this video, I will show you some of the most common ways to deploy a... Read more
GigActiv GA3005 Ultra Wideband
GigActiv GA3005 Ultra Wideband Frequenzy range : 9 kHz – 3 GHz Power Supply: 5,5V – 15V Gain: + 3dB Upper Frequency Limit (-1db): 3000 MHz... Read more
Amateur Radio Tower Stand – KG0ZZ’s
A close up view of my ham radio tower and tower stand. The tower is five sections of Rohn 25-G tower. The top section is 8 feet long making the... Read more
App - Mobile
Morse Intercom – APP
Features:i) Send Morse to, and receive Morse from, other users of the app. Restrict usage to your WiFi network, or allow full Internet connecti... Read more
Morse Decoder for Android Smartphones and Tablets
Morse Decoder decodes Morse code characters through the built-in microphone of your Android device. Morse Decoder can be used by Ham Radio operators o... Read more
Satellite Explorer Pro – IOS App
‘Satellite Explorer Pro’ is a tool for tracking satellites in real time. It is not a game. Be sure to visit the support web site http://ww... Read more
RUMlogNG2Go for iOS version 3.3 now available
Thomas Lindner, DL2RUM, is happy to announce the availability of version 3.3 of his RUMlogNG2Go logger for the iPhone and iPad. RUMlogNG2Go can be do... Read more
News
The K7RA Solar Update
No sunspots this week. The pattern persists, and this surprises me. But Spaceweather.com reported a couple of weak, barely emerging spots, never numbe... Read more
New Amateur Extra Class License Manual and Extra Q&A Now Available
Go all the way to the top! ARRL has everything you need to pass the Amateur Extra Class license exam with confidence. The ARRL Extra Class License Man... Read more
Swiss Remote Station Rigi Scheidegg, 1’660m a.s.l. – an Amateur Radio project of HB9RYZ + HB9CQK
Three strong winter storms (Petra, Sabine and Bianca) in February 2020 destroyed all the antennas of the Amateur Radio Remote-Station on the Mount Rig... Read more
Prominent Radio Amateur Helping to Lead US Convalescent Plasma Expanded Access Study
Well-known contester, DXer, and National Contest Journal (NCJ) Editor Scott Wright, K0MD, has been “substantially” stepping back from ham radio while... Read more
New IARU Electromagnetic Compatibility (EMC) Coordinator Appointed
The International Amateur Radio Union (IARU) Administrative Council has appointed Martin Sach, G8KDF, as global Electromagnetic Compatibility (EMC) Co... Read more
