In this video Mike Harwood compares 4 different active mag loop antenna at various frequencies up to 52MHz using two SDRplay RSPduos which allowed simultaneous spectrum snapshots of the 4 loops in action with real signals.
The new version of the well known Shared Apex Loop Array, the SAL-30 Mark II is here. The four vertical sides of the loops have been replaced by a sin... Read more
Another way to beat the HOA commandos when you want to operate ham radio. This antenna can be very hard to notice at all if you set it up in a stealth... Read more
The ULTIMAX-8040 broadband dual band double bazooka for 40 & 80 meters is a fantastic antenna using a newly designed “HY-Q” coax coils that gives... Read more
“An HP model 3200B VHF Oscillator and ENI model 5100-L NMR RF Broadband Power Amplifier provide a 300 MHz signal to a half-wave dipole antenna.... Read more