Practical Wireless Magazine July 2020 Retour à l'édition précédente

IN THIS MONTH'S PRACTICAL WIRELESS

• NEWS: Our monthly roundup of news from the UK and internationally, including new products, club news and recent events.
• NANOVNA: A handy and cheap piece of test equipment.
• MIDSUMMER ANTENNA: A fun challenge for the summer, to take our minds off lockdown.
• VENUS INFORMATION TECHNOLOGY
SW-3B THREE-BAND CW TRANSCEIVER: A QRP transceiver from China.
• HYENDFED PORTABLE ANTENNA: A 3-band antenna from HyEndFed.
• HF HIGHLIGHTS: Activity despite, or perhaps because of, lockdown.
• WORLD OF VHF: New amateur satellites, uploads to LoTW and the latest operating news.
• ROTATOR RENOVATION: Refurbishing an antenna rotator.
• AN RSGB AND NHS CAMPAIGN: ‘Get on the air to care’ promoting wellbeing and easing the effects of social isolation amongst radio amateurs.
• DATA MODES: A new LNB in a QO-100 system and logging software for the Pi4.
• WHAT NEXT: Some guidance to those returning to the hobby after a break
• CARRYING ON THE G3RJV WAY: An audio-derived S-meter and complementary bargraph display.
• MAKING THE MOST OF THE HALF-SQUARE: How to get the antenna gain and low radiation angle of a pair of phased verticals with a single piece of wire.
• VALVE & VINTAGE: The creation (evolution) of wireless.
• MAKING WAVES: How radio signals can be bounced off high flying aircraft, to enable a contact to take place that wouldn’t normally be possible.
• NOTES FROM A SMALL STATION: has 80m daytime propagation suddenly returned?
• DOING IT BY DESIGN: A low-cost but effective microphone processor.