Amateur Radio Weekly – Issue 59

Dayton Hamvention – Welcome to the Big Show
In amateur radio it doesn’t get any bigger, or any busier, than the Dayton Hamvention.

What will we see at Dayton 2015?
Hard to imagine that Dayton Hamvention 2015 is just a week away!

Dayton Hamvention livestream schedule May 13-17 2015
Wednesday May 13th 1300 UTC, we go live beginning with the drive from Memphis, Tennessee to Dayton, Ohio.

Extreme DX satellite contact between UK and Texas
On April 27, 2015 at 1901 GMT, Cuban radio amateur Hector Martinez W5CBF/CO6CBF achieved a 7537.8 km DX contact with UK amateur Peter Atkins G4DOL via FO-29, possibly a world record for the satellite.

ISS HamTV now transmitting on 2395 MHz
The Ham Video transmitter on board the Columbus module of the International Space Station was powered on and started transmitting in “Blank Transmission” (BT) mode.

Radio Buoys operating in the 160 meter Amateur band
It is an unfortunate situation that people who make a living from commercial fishing are caught in the middle of such a regulatory discrepancy.

Arduino: Under the hood
Ever wonder how the Arduino IDE translates your code into instructions for the processor?

Android app tracks ADS-B signals
Track ADS-B signals from Android with a compatible SDR device.
Google Play

Digital Mode: SIM_PSK 31/63
Integrated Structured Message BPSK31

How to

How to build a 10 meter dipole
The Technician class has access to a part of the 10 meter amateur radio band. They can operate CW, digital and phone. Antennas for 10 meters are small and easy to build. A dipole antenna is one of the easiest antennas to build.

70cm Moxon Antenna
Contesting for beginners with a bent coat hanger.

A crude skew planar wheel antenna for GPS L1
The skew planar wheel antenna is a circularly polarised omnidirectional antenna, exactly what you want for satellite reception. It might not be as optimal as a QFH but it is definitely easier to construct even when you are in a pinch and only have gardening wire available.

Plans for 3D printing a QFH antenna
I designed this for 145mhz for ISS, and amateur radio. Great for satcom or APRS. It seems to work ok for NOAA APT sats as well.


Linrad waterfall and weak signals
Here Linrad is set up to produce waterfall graphs with high sensitivity for extremely weak signals. An RTL-SDR dongle is used to receive SK4MPI on 144.412 MHz.

Amateur Radio Weekly is curated by Cale Mooth K4HCK. Sign up free to receive ham radio's most relevant news, projects, technology and events by e-mail each week at

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