[amsat-bb] FT-847 - relating dbm to S units

Phil phillor at telstra.com
Sun Feb 7 20:36:23 PST 2010

Thank you for reading this.

I'm still trying to determine if the aerial I have is working correctly or 

If -120 dbm for a 12 db SINAD is considered the minimum usable signal, 
what is the likely signal level required to indicate an S1 reading (at 435 
MHz) on an FT-847 with the internal pre-amplifier turned on?

The Yaesu manual quotes 0.2 micro volts for a 12 db SINAD. How many S 
points is likely to be?

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