Projects:
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Last upd:
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Status: |
AD8317 based Intelligent Attenuator/Power Meter for 0.2 to 500 MHz
A multipurpose RF lab instrument:
- RF power meter, 0.2 to 500MHz, input power -50 to +30dBm, 0.1dB resolution.
- Step Attenuator, 0 - 151.5dB in 0.5dB steps.
- "Intelligent Attenuator" or "Signal Level Generator" function, automatically adjusting to a preset output power.
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2012-04-13 |
Bugfixes and new features
(Bargraph Power Display)
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SDR Widget
A group project to develop the ideal sound card/controller for an SDR
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2011-04-17 |
A full fledged sound card with superior performance, and Mobo style SDR control functions. HiFi Audio playback variants also developed. Development continues
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Comparison of “conventional”, “DDC based” and “soundcard based” receivers
A rambling mini thesis on SDR performance
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2010-07-28 |
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Mobo 4.3 Application Programming Interface (API)
Here is the Mobo 4.3 Firmware API, as well as the complete AT90USB162 / ATmega32U2 sourcecode for download (see bottom of page).
The MoboControl GUI is available for download at the bottom of this page.
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2011-04-02 |
API and repository for the Mobo 4.3 firmware
Now including the new version 1.07
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Mobo 4.3 Project - The continuing Saga of the SR 6.3 kit - Now becoming a deluxe HF Transceiver
This section includes description of a firmware development project, using the AT90USB162 microcontroller to provide Si570, and TRX control (automatic BPF + LPF switching, PA bias, SWR measurement and protect, etc...)
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2011-04-02 |
Stable.
References to Firmware version 1.07 added |
Softrock 6.3 Project - An all band HF Transceiver, based on the Softrock RXTX v6.3 kit
Including the following home brew projects:
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2011-01-16 |
Stable since 2009-09.
Latest update:
Added a picture from Alex, RN6LW, showing his very nice SDR transceiver, including the ATmega168 controller |
Yaesu FT-2000 Panadapter, using the Softrock 9 Lite, SDR receiver kit
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2009-02-10 |
Stable |
A simple HVS programmer circuit for 8 pin ATMEL ATtinyXX Microcontrollers (as in Softrock 9 RX)
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2009-03-16 |
Stable |
A 4m tall, bottomfed, electrically fullsize halfwave vertical dipole for 20m (tuneable to other bands)
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2009-03-31 |
Stable |
Here is my own version of a disclaimer:
This is an Amateur Radio Techno Blog site. Everything on these webpages has been put here for my own benefit and enjoyment. If I happen to have included an inappropriate link, please notify me, lofturj (-at-) gmail (-dot-) com, and it will be promptly deleted. No responsibility whatsoever is taken for any material published on these webpages. Some projects described here may include an element of original thought, now this is unlikely but statistically possible, remember the monkeys and the typewriters. In such a wildly unlikely event, while I claim ownership, I also expressly grant license to use on a non-profit basis. To stretch this to the extremely silly; if anyone becomes filthy rich by implementing something based on an original thought found on this web page, then I want a 50% cut. So there.
This site is not set up to be esthetically beautiful. In fact, perverse pride is taken in its haphazard construction and top-heavy graphics. Project descriptions may and will appear and disappear without rhyme or reason.
Counter installed 8 Nov 2009 (Page last updated 2012-04-13, Loftur E. Jonasson, TF3LJ / VE2LJX)
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