“Is the NanoVNA suitable to measure/adjust a typical antenna duplexer? This video compares the NanoVNA-H4 and the SAA-2N VNAs with a professional VNA (Tektronix TTR506A). Will the limited dynamic range of the NanoVNA get in the way of making a good measurement, or limit the ability to adjust the duplexer? Watch and find out…”
Antenna
Optibeam OB8-4M 8 Element 4 Band
The OB8-4M is an extremely effective, compact and innovative Yagi for the classical four bands 40, 20, 15 and 10m. It is the first trapless Yagi for t... Read more
INAC AX-330 – HF Antenna
HF Antenna AX-330, is an antenna that covers the spectrum of HF of 3.4 Mhz. 30.5 MHz continuously. Two loops tuned remotely by two servo motors, fed s... Read more
25 Element Log Yagi 20-17-15-12-10m
OBLY25-5 25 Element Log Yagi 20-17-15-12-10m Bands 20 / 17 / 15 / 12 / 10 Gain (dBd) * 7,4 / 7,4 / 7,4 / 7,4 / 7,4 Gain (dBi) ** 14,7 /... Read more
Green Heron Rotator Controller RT-21azel
Rotator Controller RT-21 Azimuth/Elevation Two separate control boards for independent Azimuth and Elevation New crisp OLED displays Separate Point-an... Read more
Review
Anytone AT-D578UV Pro Quick Review with Katie WY7YL
“The Anytone AT-D578UV Pro is a mobile, dual-band, analog and DMR radio. With tons of features in a nice compact build, it’s sure to be a... Read more
ICOM IC-7300 Review and Full Walk Through
New technology is changing the way receivers are being designed and the IC-7300 is an industry first as an RF, Direct Sampling System is being used in... Read more
IARUMS Region 1 Presentation by HB9CET
The International Amateur Radio Union (IARU) is a federation of national associations of certified radio amateurs, representing over 150 countries and... Read more
Equipment
GZV6000 Switching Mode DC Power Supply – 60 Amp
Special Features: • Size: 8.25″ x 4.5″ x 16″ • Weight: 12.8 lbs. • 60 Amp Continuous Rating, 100% Duty Cycle • Variable Voltage Cont... Read more
Rotator Genius – 4O3A
Rotator Genius is a smart rotator controller that uses a magnetic sensor for reading azimuth. It can be controlled by a Windows or Android app. Motor... Read more
Palstar LA-1K – 1 kw LDMS Solid state amplifier
LA-1K 1 kw LDMS Solid state amplifier – coming soon! RF Sensing 1000 Watt Amplifier covering 160m to 6m bands with LCD touch-screen display to... Read more
OFF-GRID HAM RADIO: Simple Emergency Communication When the Grid Goes Down
Check great article about Emergency Communication from Robert Richardson : Read more
News
March 2021 Volunteer Monitor Program Report
The Volunteer Monitor (VM) Program is a joint initiative between ARRL and the FCC to enhance compliance in the Amateur Radio Service. This is the Marc... Read more
ARISS USA Gets IRS 501(c)(3) Recognition
ARISS-USA, a Maryland nonprofit corporation, has earned recognition from the US Internal Revenue Service (IRS) as a Section 501(c)(3) charitable, scie... Read more
Contests on QO-100 allowed
Updated band plan valid: from 4 April 2021 Contest Zone (CW and SSB) Uplink area 2400.370 – 2400.490 MHz Downlink area 10489.870 – 10489.990 MHz Of co... Read more
How to use an automatic antenna tuner with a Yaesu FT-891 (LDG Z11 Pro II)
How to use an automatic antenna tuner with the Yaesu FT-891. In this video I show you the steps to set up and configure the LDG Z11 Pro II auto tuner... Read more
Online Comm Academy 2021 is set for April 10 – 11
The 2021 Comm Academy April 10 – 11 is 2 days of training, talks, and information on emergency communications and amateur radio. This year’... Read more
