Jack, N4ACD, wants me to share a story that happend. It also shares a intresting thing a harmonics did. Watch to learn more about harmonics and what happened.
Antenna
MONO 3 40 MOXON
MONO 3 40 moxon is every contester’s dream, a rugged monoband yagi, compact design and large bandwidth. Specifications Frequency MHz: 7~7,3 Active ele... Read more
Second Rule of Antennas : Height Matters!
Sergei, UB4LDT, has some questions having to do with the height of his antenna? But the basic rule is height matters! Read more
What size or gauge of wire should I use for an antenna
“A viewer asks: What size of gauge of wire should I use for my portable End Fed Half Wave EFHW antenna. 16 gauge wire seems to be bending my mas... Read more
G3TXQ 6 Band Hexbeam Components
Some of the Hexbeams features are: 6 bands: 20m – 6m Full size 2 Elements on each band No lossy traps or coils Bespoke HIGH power wire elements... Read more
How High Should a Dipole Be? A Look at Antenna Modeling
“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 rul... Read more
Fan Dipoles
Bob Carver, KB0XT, wants to know how close he can put his dipoles or if he can even combine them? Yes! He can. Watch to learn all about Fan Dipoles Read more
This is a discussion about price, cost and value of antennas
Jim W6LG talks about expensive antennas that do not radiate as advertised. That is to say, an expensive antenna that promises superior results may act... Read more
Folding Hexbeam
The design The folding Hexbeam is a 2-element directive antenna for five amateur bands (20/17/15/12/10m band, 6m band optional). It cons... Read more
Review
How to Comply with FCC RF Exposure Rules Forum Featuring Ed Hare, W1RFI | at 2022 Dayton Hamvention®
In May 2021, new FCC rules regarding exposure to RF energy went into effect. The limits haven’t changed, but the ways that some amateur operator... Read more
A Closer Look at the DX Engineering RXSHARE Audio Switch
“Noted ham radio author, Ward Silver, N0AX, reviews the DX Engineering RXSHARE Audio Splitter—a contesting device that gives two operators compl... Read more
The Malahit DSP portable SDR receive
A nifty little portable SDR receiver. I still have lots to explore with it, but here’s an overview. 【Frequency Range】50 kHz~2.0GHz (Registered v... Read more
Using the ARRL RF Exposure Calculator
Brent, KI5HXM, has a question relating to RF exposure in a mobile environment. Dave wants to show a cool online tool to helps know the save distance p... Read more
DV4home – Basic setup and menu navigation
This is the part 1 video of the DV4home, showing the basic setup and menu navigation. Read more
Controlling the OM2000A+ from Tablet
The automatic linear amplifier OM2000A+ is designed for all short wave amateur bands from 1.8 to 29 MHz (including WARC bands) + 50 MHz and all modes.... Read more
WELLBROOK ALA1530S+ LOOP ANTENNA – Review
“I have been a keen shortwave listener since 1970 and have had many receivers and antenna types during this time. Currently I have two wire ante... Read more
Equipment
Airspy HF+ (Coming soon)
Airspy HF+ The Software Defined Radio revolution brought great flexibility in VHF and UHF reception. Today we offer the best wide band receivers which... Read more
SDRplay releases ExtIO plugin for the RSPduo
“We are pleased to announce the release of the ExtIO plugin for the RSPduo. This release uses the latest API (v3.01) which is also being updated... Read more
Heil BM-10 Headset
The BM-10 headset was designed to be a lightweight (only 3 oz), articulate sounding boomset that is ideal for DXpeditions, mobile, and general rag che... Read more
ARS-USB AZIMUTH by EA4TX
Antenna Rotator System is the most popular and universal engine management antenna rotator. With this new generation that includes a USB port,... Read more
Flex Radio announces The Flex 6400 and 6600 series SDR Radios – Courtesy of Waters & Stanton
Waters & Stanton, the SDR Transceiver pioneer supplier in the UK announced today the launch of the new Flex 6400 and 6600 series radios which will... Read more
HF Amplifier Ameritron ALS-1306
Ameritron HF+6 1200W Solid State Amplifier 1.5-54 MHz . . . 1200 Watts PEP Output, Instant Automatic band switching, no tuning, no warm-up, SWR protec... Read more
EXPERIMENTAL SWRX
The Stampfl receiver is still in its experimental stadium and is not, comparable to a KWZ-30, Reuter or Perseus receiver. But an Assembly kit for the... Read more
3D printed desktop rack for KX3 / PX3
“Robert K5TD makes me wish I had a KX3. His own design of a 3D printed rack beautifully shows off the radio and panadapter and, from observation... Read more
The post The Mystery of the 17th Harmonic appeared first on QRZ NOW - Ham Radio News.
