23 June 2010

More on Toshiba Tecra S11-128 and BSOD

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L ooks like the culprit was not only the BIOS or the sound driver creating BSOD in my Win7 64bit. While the machine was core dumping, I wrot...
18 June 2010

Toshiba Tecra S11-128 and BSOD

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S o, you own a brand new Toshiba Tecra S11-128 laptop with Win7 64bit, and it crashes happily. Mine liked to crash when opening a youtube v...
14 June 2010

RSTDISBL fuse and Serial Downloading/Programming

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M y fun with two samples of ATmega168 microcontrollers was very short. For my target application I wanted to check if PortC's 7 bits wou...
08 June 2010

FT817 remote, on the way...

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I t's written on the keypad manual and webpage that it " was never meant to be a remote display or a detachable front panel, and w...
04 June 2010

FT817 keypad, now with 25 onboard memories

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I have been asked to develop a custom firmware for a DXpedition. Requirements where: quick band/mode change split control Band/mode combinat...
25 May 2010

Looks like ...

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... Italy will get again a 70 MHz (4m) allocation in 2010. I need to build an antenna again! And maybe a power amplifier for my 100mW CW TX....
17 May 2010

XTAL choice for 455-12 DRM converter

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14060 kHz / 32 sounded good. So does 7030 / 16. How about 7040 / 16 then?! It gives 440 kHz, that is even closer to the I.F. of 455 kHz. I...
10 May 2010

XTAL L.O. for DRM 455-12 converter

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T he idea of a free-running LC oscillator for my 455-12 DRM converter kept me worried for a few days. With the help of a calculator I found ...