L1 coil turns vs uH

General discussion and support for the Peaberry SDR V1.

L1 coil turns vs uH

Postby john.kg9dk » Sun Aug 04, 2013 1:42 am

Hi to the forum, I am up to where I install L1. I decided to measure the inductance with my "almost all digital electronics L/C meter" For 16 turns it measured 1.2uH, I removed 5 turns to get down to 0.9uH. So my question should I wind the coil to the number of turns listed in the work sheet or wind the coil to the listed inductance which in this case is 0.8uH.
'
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Re: L1 coil turns vs uH

Postby AE9RB » Mon Aug 05, 2013 5:32 pm

The main problem you're having with measurements is that the meter you are using doesn't operate at the frequency of the device. The vendor claims 1% accuracy but tests the calibration standard 10000% or more out of frequency spec. You're certainly welcome to tinker and learn more about your tools, but if you just want to get to a working radio then I always recommend you follow the directions.
73 David AE9RB
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Re: L1 coil turns vs uH

Postby john.kg9dk » Wed Aug 07, 2013 3:25 pm

I came to the same conclusion while waiting for an answer. I have another problem and will post in a new post.
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