Essential verification of radar system elements can take place separately at a distinct frequency to save cost and time.
First impressions of the LG Urbane Second Edition LTE smartwatch are highly favorable–let’s take a technical look at smartwatch RF performance.
The latest mesh network Wifi APs, Google Wifi and Amplifi HD seem to have the same old throughput drop. Instead use wired/MoCA/powerline APs.
Soundblaster Roar 2 FCC ID IBAMF8190 technical includes details of operation including apt-X.
Understanding LTE smartwatch coverage by example of LTE Android Wear smartwatch in rural areas.
Even $2 Bluetooth speakers can work OK. Better to get multipoint speaker for real investment.
Technical explanation of paging coasters in the 27 MHz and UHF bands, including antennas and interference.
Common defects in remote control toys/vehicles can often be easily remedied to increase maximum range.
Teardown and improvement of maximum control RF range by hacking RC car.
Factors to consider when choosing a frequency pair for a harmonic radar system.
Detailed technical review of Verizon Mifi w.r.t. antennas and frequency
diagnosing SDR overload
Why wouldn’t survivors of a world-wide or regional disaster use numerous satellites accessible with $35 walkie-talkies.
Articles concerning calibration of on-orbit radars.
Articles on characterizing big on-orbit HF antennas.
List of articles concerning Mars Express MARSIS radar
Suggested engineering college / high-school / maker projects
Numerous beneficial modifications to improve Yaesu VX-7 performance.
How to measure repeater desense step-by-step with example measurements.
I switch from Nextel to Sprint with Blackberry 8703e. Thoughts on critical need for STEM mentors, or those that can guide to STEM.
How to find and fix 800 MHz two-way radio system interference from cellular carrier Nextel. Working with field engineers to reaim antennas and retest.
Detailed resolution to Nextel public safety radio interference.
Technical details of redesigning a poorly thought-out life-critical paging system.
Some practical experiences in ham radio during Solar Cycle 23.
EF Johnson 35 Watt Summit 800 MHz mobiles suffer from predictable solder failures at the output transistor. Here’s how to repair.
CB Radio is good for long distance mobile and base communications
Getting a real radio system for our group on 800 MHz.
Wireless phone jack extenders use powerline wire to couple FM signals on HF. What if we connected an antenna?
Simple equipment to monitor geospace conditions.
A garage sale acquisition of a marine VHF mobile radio
For cottages, you want a CB base antenna that won’t be stolen, and will stand up to adverse weather. Why not a mobile antenna!
A free 23 channel CB radio leads to hours of successful antenna experiments.
What they don’t tell you about crystal radios is you need to be under the radio station transmitter for it to work!