Shared Projects

RF amplifier for frequencies up to about 6 GHz. Has high pass filtering and matching on both the input and output. See http://www.janbob.com/electron/RFAmp1/RFAmp1.htm for more details. Be sure to order the boards with the thin 0.8 mm option at checkout. Be careful, you need to check the box—it is not preset. W7PUA

This is a noise generator for 1 MHz to 2.5 GHz, used for testing of radio receivers. See http://www.janbob.com/electron/Noise/NoiseGen1.htm for details. Be sure to order the boards with the “2 oz copper, 0.8 mm thickness,” an option selected at checkout. Be careful, you need to check that box—it is not preset.

High Frequency filters of the high-pass/low-pass topology. Typically these are used for wider pass-bands, such as one octave. Cauer/elliptic responses provide good out-of-band rejection with minimal inductors. A latching relay provides a bypass path to allow cascading of the filters. Full details and measure responses are at http://www.janbob.com/electron/FilterBP1/FiltBP1.html Use of this board via OSH Park orders is unrestricted.

SDR Control Box PCB with Teensy 3.6 processor. Supports most SDR with knobs, buttons and 320x240 display.. Details are available here. Use of this board via OSH Park orders is unrestricted.

There are many digital and analog signal pads on the back side of the PJRC Teensy 3.6 processor board. This board makes a portion of those pads accessible as 0.1-inch spaced header-ready pads. This board solders to the bottom of the Teensy board and extends the length by 0.3-inch. See https://forum.pjrc.com/threads/48553-Accessing-bottom-pads-on-T3-6 for more information. License: Usage through OSHPark orders is not limited.