With a bit of work, one can successfully feed an array of LF-HF receivers from one broadband antenna.

The post KX4O SDR Receiving Electronics appeared first on Ham Radio . Magnum Experimentum.

We examine the differences between the original and higher power version of Wolf River Coils' Silver Bullet 1000 tunable loading coils.

The post Wolf River Coils – Silver Bullet vs. Silver Bullet Platinum 1000 appeared first on Ham Radio . Magnum Experimentum.

Some simple tweaks to a few text files try to make OpenWebRx more compatible with wider AM and FM RF bandwidths.

The post Higher Fidelity OpenWebRX 1.0.0 appeared first on Ham Radio . Magnum Experimentum.

I use a weathered copper small transmitting loop to see if copper oxide affects antenna conductivity and hence efficiency.

The post Copper efficiency after weathering appeared first on Ham Radio . Magnum Experimentum.

Review of the smallest portable 2m antenna on the market producing full size dipole performance and stows into your pocket.

The post Nelson Antennas 2m rollup antenna review appeared first on Ham Radio . Magnum Experimentum.

Recent metal case offerings from Raspberry Pi enclosure manufacturers help mitigate heat issues when you dare try process-heavy applications including amateur radio spotting servers.

The post Thermal solutions for the Raspberry Pi appeared first on Ham Radio . Magnum Experimentum.

After three years of mobile operation, I review the Diamond Antenna NR770HBNMO with appropriate K515SNMO mount including pattern measurements.

The post Diamond Antenna NR770HBNMO with K515SNMO mobile antenna review appeared first on Ham Radio . Magnum Experimentum.

The Airspy YouLoop is a no tune, broadband, small footprint, affordable LF to HF receive antenna that works indoors. Its modular construction facilitates experiments to understand where the Möbius inspired electrical design provides benefit.

The post Airspy YouLoop LF/MF/HF Möbius Receive Antenna appeared first on Ham Radio . Magnum Experimentum.

Aviation LF/MF beacons provide the opportunity to admire electrically-small antenna design on a macroscopic scale.

The post Anatomy of a low frequency aviation radio beacon appeared first on Ham Radio . Magnum Experimentum.

Today's new SDR options and compatible software provide new ways to demonstrate radio technology to the next generation of STEM students.

The post Using AM to explain the value of radio bandwidth appeared first on Ham Radio . Magnum Experimentum.

Thule roof rails increased my VHF antenna mounting options on my Subaru Forester.

The post Roof-racking VHF antennas on SUV appeared first on Ham Radio . Magnum Experimentum.

Quick demonstration of Time Difference of Arrival (TDoA) technique to correlate a common transmitted signal on multiple receivers to find the transmitter's location.

The post Demo of TDoA using the SDR.hu network appeared first on Ham Radio . Magnum Experimentum.

Months of research prove the notion compressed data over ARQ modem techniques is anything, but effective encryption.

The post “Effective encryption” effectively debunked appeared first on Ham Radio . Magnum Experimentum.

Much has been said about the electrical disadvantages of using a magnetic mount for your VHF/UHF mobile needs. Measurements compare the magmount to a thru-hole NMO mount.

The post VHF magmount vs. hole-mount performance comparison appeared first on Ham Radio . Magnum Experimentum.

Promoting amateur radio means to first promote technology and this American morse demo does just that.

The post “Holidays in the Heart” telegraph demo – how educating the next generation is done appeared first on Ham Radio . Magnum Experimentum.

One example of a PolyPhaser through panel protector makes one wonder if I have a counterfeit or has QC taken a turn for the worse.

The post Will the real PolyPhaser please stand up appeared first on Ham Radio . Magnum Experimentum.

For what it's worth, the myths surrounding the J antenna have been sorted out resulting in an improved version.

The post The J-Pole antenna is herewith fixed appeared first on Ham Radio . Magnum Experimentum.

Data from W4GO's Virginia QSO Party operation confirms how well NVIS works from his SUV.

The post How to win with HF mobile NVIS appeared first on Ham Radio . Magnum Experimentum.

I add a 0.05 wavelength wire to my previous end-fed vs. center-fed dipole tests and plot the results.

The post Adding 0.05 wavelength wire to EFHW antenna appeared first on Ham Radio . Magnum Experimentum.