Top Amateur Radio Websites - Issue 1940 

80 Meter Shortened Ground Plain Antenna, LogHX freeware logger software, Antenna Calculation Software , Arduino ACCU Keyer , The Arrow Antenna Portable VHF antenna, Anytone Tech Web Site, Frequency counter project, OQRS Hints and Tips Explained, One-turn loop inductance Online Calculator, BKLog - log book and contest program

Top Amateur Radio Websites - Issue 1939 

Micro24 Cigarette Pack SSB QRP Transceiver for 20m , Moxon Antenna for 7 MHz, 9 Circle RX antenna, A Moxon Antenna for Satellites, Top Band Receive Loop Antenna, A Cheap Portable Mast Support, NanoVNA, Homebrew a High Performance SSB RTX for 14 MHz, NanoVNA Saver , The Micro20 III Pocket Size SSB RTX for 20m

The Spectrum Monitor 

Shortwave Radio/SWL DX Newsletters
The Spectrum Monitor, amateur, shortwave AM FM TV Scanning Satellite magazine, is edited and published by Ken Reitz KS4ZR, former managing editor, features editor, columnist and feature writer for Monitoring Times.

Raspberry Pi and Automatic NOAA Satellite Reception 

Technical Reference/Raspberry Pi
How to receive automatically NOAA wather satellite images with a Raspberry Pi and a RTL SDR. This project requires a Raspberry Pi 3 Model B a common NooElec SDR Dongle and a QFH Antenna in the attic. Article explains how to setup and configure software but no instructions on antenna.

Weak Signals - Reduce volume to reduce noise 

Operating Modes/Weak Signal
This article discusses how volume reduction can help in the reception of weak signals by reducing the noise level. It is commonly known that reducing the volume also reduces the background noise, and especially in the reception of weak digital signals it can be beneficial

2m Quad Turnstile Antenna 

Antennas/2M
The loops are made of 10 mm round aluminum tube. No bending pliers was used to gently bend 90 degrees to obtain a square with 53 cm inner sides. Each loop has an impedance of approximately 100 Ohm. To connect both radiators in phase, a quarter wave long feeder of 100 Ohm is required.

HamClock - Ham Radio Desk Clock 

Technical Reference/Raspberry Pi
Keep track of much more than the time with this Wi-Fi enabled device. HamClock is a desk clock that could show accurate time, geography, time zone, solar activ- ity, sunrise and sunset times, Maiden- head locators, beam heading,