Radio gear

AM broadcast band

Receiver: R820R2-based, 1ppm stability RTL-SDR, Nooelec Ham-It-Up v1.3 upconverter, low-noise amplifier

Antennas: Conti Superloops of various sizes (7’x25′, 10’x20′, etc), 4-foot and 6-foot tuned loops, two-antenna phasing system with a tuned loop and a 23-foot vertical with a Quantum Phaser (see below)

FM broadcast band

Receiver: Airspy SDR with a MiniCircuits LNA

Antenna: Antennacraft FM-6 6-element Yagi (discontinued; my only non-homebrew antenna)

Amateur radio

Receiver: Yaesu FT-450D HF+6 100W multi-mode transceiver

Antennas: 5-foot diameter small-transmitting loop (“magnetic loop”) for 80-17 meters, 3-foot small-transmitting loop for 20-10 meters, 4-element Yagi for 6 meters; all homebrew

 

Shortwave

Receiver: R820R2-based, 1ppm stability RTL-SDR, Nooelec Ham-It-Up v1.3 upconverter, low-noise amplifier

Antennas: Conti Superloops of various sizes (7’x25′, 10’x20′, etc), 26-foot outdoor twinlead random wire sloped up to the 9-foot peak of carport

 

Antenna combiner

I bought Radio Plus’ Quantum Phaser in December 2014 to phase a vertical and a tuned loop to get a rotatable cardioid pattern that can yield front-to-back signal ratios in excess of 40dB. Here’s an example with my two local stations. Note the nearly 40dB drop at 1450 with the proper phaser setting, and the small drop at 1490. Also note that the local 1450 signal was certainly attenuated by more than 40dB, and the remaining signal is from other stations to the west being enhanced; I’ve picked up audio on other 1450’s with my local phased down.  I haven’t used this as much recently, but want to get back to phasing systems at some point.

14501490_normal
14501490_phased

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