How to Find the Source of Electrical Noise on HF (2026)
Finding electrical noise on HF is an isolation problem, not a guessing game. Power the rig from a battery, open the main breaker one … Read more
Finding electrical noise on HF is an isolation problem, not a guessing game. Power the rig from a battery, open the main breaker one … Read more
Grounding a ham radio antenna safely means bonding the mast or tower, the antenna, the coax shield and your station equipment into one system … Read more
You measure SWR with a cheap antenna analyzer by setting the sweep range first, calibrating with the open, short and load standards, then connecting … Read more
A simple HF wire dipole antenna is one continuous length of insulated copper wire cut to roughly a half wavelength and fed at its … Read more
Learning how to measure RF exposure for your station comes down to two jobs, and hams usually need both. The first is the paper … Read more
To start shortwave listening you need five things: a receiver that covers the HF bands, an antenna that works outside the radio, headphones, a … Read more
Tuning a shortwave radio means picking a frequency between roughly 3 and 30 MHz and then holding it there while the signal fades in … Read more
An RF exposure evaluation is a calculation. You work out the RF power density your station produces at the closest place a person can … Read more
If you want to know how to find out if you need a permit for an antenna, work through four separate layers: federal notification, … Read more
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