Balloon ISP header

2 layer board of 0.70x0.65 inches (17.88x16.61 mm).
Shared on July 16th, 2015 16:45.

For connecting ISP to Balloon Radio for programming.

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Balloon radio version 1.1

2 layer board of 3.19x1.58 inches (81.00x40.11 mm).
Shared on July 16th, 2015 15:19.

A MicroAPRS interface between a NavSpark gps and a DRA818 transmitter. For balloon tracking.

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5V switching regulator

2 layer board of 1.66x1.48 inches (42.06x37.62 mm).
Shared on June 22nd, 2015 01:40.

Provides 5V power for devices.

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Z273 Programmer revision 1

2 layer board of 4.43x1.93 inches (112.50x49.00 mm).
Shared on June 1st, 2015 18:01.

Read and program Midland radio Z-273 memory modules.

Bill of materials: http://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=1110b692f1

Build instructions: http://dbindner.freeshell.org/z273/build.html

Operating instructions: http://dbindner.freeshell.org/z273/index.html

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RF Power tap revision 1

2 layer board of 0.88x1.45 inches (22.33x36.93 mm).
Shared on February 9th, 2015 01:47.

Measure RF power with a multimeter by tapping the feed line.

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