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Old November 16th 14, 08:47 AM posted to rec.radio.amateur.equipment,sci.electronics.design
rickman rickman is offline
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First recorded activity by RadioBanter: Nov 2012
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Default Very Low Power Preamp

On 11/16/2014 3:18 AM, wrote:
On Sat, 15 Nov 2014 22:17:38 -0500, rickman wrote:

On 11/4/2014 6:29 PM, rickman wrote:
I am working on a project for receiving a very narrow bandwidth signal
at 60 kHz. One of the design goals is to keep the power consumption to
an absolute minimum. I'm trying to figure out how to run a
pre-amplifier on less than 100 uW. So far I have found nothing. Any
suggestions?


I haven't seen the original post, but are you building some type of
clock receiver ? Those work for a year with a single battery.


Yes, it is a radio controlled clock.


What kind of antenna are you using ? Do you really need a preamp ?


I was planning on a loop antenna made from RG6 cable, but if I have to
add an amplifier I may use a ferrite loop.


Do you have room for a tank circuit (L/C) on the collector/drain ?


Room should not be a problem. But what is the point of a tank?

--

Rick