“How do we actually connect our radios to a power source? Also, should we have more than one handheld radio battery? Should we go a step further and actually have a stockpile? Big thanks to ALL of you who have sent me emails. There are WAY more than I expected and pretty much every email deserves a vdideo like this and I’m getting to work on them!”
Antenna
Measuring Balun Ratios
I have been asked how to measure the ratios of a Balun or an Unun. So if you’re someone who has that same question this is a video for you. Read more
Stealth 2 Meter Copper J-Pole for your HOA – AF5DN
Stealth 2 Meter Copper J-Pole for your HOA – AF5DN 0 Read more
THE COKE LOOP Antenna by PY1AHD
“The Coke Loop is a Small Magnetic Loop Antenna tuned by a trombone-style variable capacitor made with standard soda cans. In Brazil we... Read more
4O3A ANTENNA GENIUS 8X2 | SO2R ANTENNA SWITCH WITH TCP/IP
Ranko 4O3A has taken antenna switches into the 21st century! Antenna Genius 8×2 is the first in a new antenna switch line from 4O3A Signature sit... Read more
80M Antenna with HOA Constraints
Welcome to the 400th Ask Dave video! Ken, VE7ZY, is having trouble with an 80m dipole mounted very closely to the roof flashing. He is seeking other a... Read more
Review
IC-7610 Technical Report Vol. 3 (English Version)
Released the final issue of IC-7610 Technical Report, which explains the circuits used in the IC-7610 and some excellent functions of IC-7610. Read more
The Real FT8, JT65, and JT9 Signal-to-Noise Ratio Revealed
SNR – Signal-to-Noise Ratio From the 2018 TAPR Digital Communications Conference, we learn about a true measurement of signal to noise ratio on... Read more
SunSDR2 PRO Review by RadCom
A powerful HF to VHF transceiver from Expert Electronics The SunSDR2 PRO is the latest transceiver from Russian company, Expert Electronics, and packs... Read more
All About CTCSS – ARRL HQ Video
A basic primer about the Continuous Tone Coded Squelch System Continuous Tone-Coded Squelch System The Continuous Tone Coded Squelch System, commonly... Read more
MFJ-4403 Voltage Conditioner
Protects against reverse voltage, over-voltage, voltage transient, and short circuits. Super noise and ripple filtering … Power supply bufferin... Read more
Equipment
LimeSDR Mini 2.0 – An open, full-duplex, USB stick software defined radio
LimeSDR Mini 2.0 is an upgraded, drop-in replacement for LimeSDR Mini, a hardware platform for developing and prototyping high-performance and lo... Read more
Elecraft AF-1 Audio Filter Kit
by Richard, N4PBQ “I’ve been working a lot of SKCC CW stations during the holidays and adjacent stations really interfere with my ability... Read more
LA1K5 is a solid-state 1200 watts 1.8 – 54MHz power amplifier
The RFpower LA1K5 is a solid-state 1200 watts 1.8 – 54MHz power amplifier. It uses a ruggedness 1800 watts 65 V LDMOS technology NXP’s MRF... Read more
Portable Solar Power, Samlex Foldable Solar Panel, Off-Grid Emergency Electricity
Portable Solar Power, Samlex Foldable Solar Panel, Off-Grid Emergency Electricity The Samlex 135 watt portable solar panel with included charge contro... Read more
RigExpert Stick 230 100kHz – 230MHz Analyzer
RigExpert Stick 230 Small. Handy. Powerful. The analyzer is designed for measuring SWR (standing wave ratio), return loss, as well as other parameters... Read more
