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Re: LF: OPERA OPTICAL BEACON (way off topic) but is based on 17 K

To: <[email protected]>
Subject: Re: LF: OPERA OPTICAL BEACON (way off topic) but is based on 17 KHz :)
From: "henny" <[email protected]>
Date: Thu, 25 Oct 2012 21:40:57 +0200
References: <4084B089A7FF496CAC1CE9A2459B9C47@AGB> <7E9EB5FA653147298EEBB4676DCDD9DD@White> <3DD7F0DC19984F7CBF611D59430EEFA3@AGB> <B26C6F9BB5184BD99CA1D054639CE363@White> <A5BECD1C098949AF97B9460111E756D2@AGB> <[email protected]>
Reply-to: [email protected]
Sender: [email protected]
Tu for the capture Stefan,
best 73's
Henny pa3cpm...
----- Original Message -----
Sent: Thursday, October 25, 2012 12:21 PM
Subject: Re: LF: OPERA OPTICAL BEACON (way off topic) but is based on 17 KHz :)


Am 25.10.2012 01:34, schrieb Graham:
[...]
 
fsk  , of  course , but  simplicity is  the  object  , switching the (led)  light  off  and  on could   reduce the  duty  by  50%  where  heat is  a problem ,
[...]

Why should it be an advantage to reduce the duty cycle to 50% and where do you expect heat problems when driving a LED?

Yes there are some high power modules but even 10W power dissipation should be managable for everyone.

73, Stefan/DK7FC



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