Jim W6LG YouTube Elmer shows how to measure insertion loss on a box he built with a relay inside to select one of two linear amplifiers. He uses a NanoVNA to measure the insertion loss in an interesting way.
Antenna
20M Vertical Dipole – Amazing Performance – T2LT Design
Here we take a look at building a simple 20M Vertical Dipole purely from RG58 Coax. Read more
The CHA TD 2.0 is a broadband (HF) Antenna
The CHA TD 2.0 is a broadband High Frequency (HF) antenna specially designed for short to long range portable and man-pack HF communication,... Read more
J-POLE REVOLUTION: KB9VBR ANTENNAS
J-POLE When Michael Martens, callsign KB9VBR, set out to make his first J-pole in 2001, his drive was purely utilitarian–the local ham club was settin... Read more
The Loop Fed Array Yagi by G0KSC
2014 Dayton Hamvention Antenna Check this great Article by G0KSC in .pdf File: DaytonHamvention-V2.2 Alternative Link We Recomend Visit: ... Read more
GB HF Quad 3 el / 3 band
Details GB HF Quad 3elm 3band 10-15-20m Turning:3,80m (12,4ft) Boom:5,50m (18ft) Fiberglass rod:4,00m Gain:9db F/B:20/25db F/S:20/30db VSWR:1:1:1 on R... Read more
Butternut HF5B 5-Band Butterfly Beam Antenna
Butternut HF5B 5-Band Butterfly Beam Antenna Five popular HF bands 20, 17, 15, 12 and 10 meters in a rotatable, two element beam? No Lossy trap... Read more
ANTENNA LAUNCHER – THE AIR BOSS DEMONSTRATION
The AIR BOSS antenna launcher was designed to launch a light fishing line over trees in order to create temporary antenna for ham radio operators. Sin... Read more
E-Z-O Antenna
A Successful Alternative to the Cubical Quad he revolutionary antenna you see pictured, the E-Z-O, was created by N8PPQ as the result of his efforts t... Read more
Review
The RS-918 clone of a clone of an outstanding open source SDR transceiver, the mcHF
RS-918 10WATT HF SDR Transceiver RX:1.8-30MHz TX:All HAM HF BANDS,Full Modes: SSB(J3E),CW,AM(RX Only),,FM, FREE-DV Features: Spectrum Dynamic Waterf... Read more
Xiegu G90 Go Box/Solar Generator Build Tutorial
Xiegu G90 Go Box/Solar Generator Build Tutorial Read more
RTL-SDR BLOG L-BAND Patch Antenna Version 2 – Inmarsat – Iridium – GPS
Here we take a look at the brand new L-Band Patch antenna from RTL-SDR Blog. This antenna is designed to work with Inmarsat, Iridium and GPS signals. Read more
The Xiegu G90 (GSOC) remote head controller in development
Xiegu G90 (GSOC) remote head controller currently in development at the coding stage.. Read more
Setting up a Buddipole Deluxe Kit in the Field
DESCRIPTION The Buddipole
Deluxe Package includes everything you need for setting up an efficient portable antenna solution anywhere in the world in... Read more
![Yaesu FT-818 – Unboxing [ Video ]](https://qrznow.com/wp-content/uploads/2018/03/FT-818_front1-265x168.jpg)
Yaesu FT-818 – Unboxing [ Video ]
The new FT-818 incorporates all the many basic and attractive features of the ever-popular FT-817ND while providing upgrades desired by many existing... Read more
The post Insertion Loss, A/B Amplifier Relay, Why It Is Called An RCA Phono Plug/Jack, appeared first on QRZ NOW - Ham Radio News.
