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| To: | [email protected] |
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| Subject: | Re: LF: Laser link... |
| From: | Stefan Schäfer <[email protected]> |
| Date: | Mon, 10 Oct 2011 21:10:29 +0200 |
| In-reply-to: | <003f01cc874f$176bd210$0401a8c0@xphd97xgq27nyf> |
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Am 10.10.2011 15:18, schrieb mal hamilton: Good idea, never done that before. I really should think about finally getting rid of that QRP signal and work to get a decent signal...[...] Concentrate instead on proper LF Antennas, Sensitive receivers and plenty of RF,[...] 73, Stefan/DK7FC ----- Original Message ----- From: "Johan H. Bodin"<[email protected]> To:<[email protected]> Sent: Monday, October 10, 2011 5:19 AM Subject: Re: LF: Laser link...Hi Stefan, Clint Turner http://ka7oei.com/ has interesting information on his"opticalcommunications page"http://modulatedlight.org/optical_comms/optical_index.html.Linear's design note DN399 about photodiode amplifiers may also be worthreadinghttp://cds.linear.com/docs/Design%20Note/dn399f.pdf (it uses a BF862 FETwhich Ithink is already one of your favourites). Oops... 650nm wavelength is perhaps O.T. on this reflector. 73 Johan SM6LKM |
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