[Elecraft] Amplifiers in general
Doug Turnbull
turnbull at net1.ie
Sat Dec 31 15:39:55 EST 2016
Fred,
I agree with all you say but still when reading a signal in the noise on
160M believe me a dB can help in recognizing a call sign. I often think
that operating on TB is some what like operating on VHF/UHF. It is
certainly a struggle with noise.
73 Doug EI2CN
-----Original Message-----
From: Elecraft [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Fred
Jensen
Sent: 31 December 2016 19:36
To: elecraft at mailman.qth.net
Subject: Re: [Elecraft] Amplifiers in general
Please let me correct my typo: 100 mW is 30 dB down, not 40. Correct
hand, wrong finger. 100 mW should be close to S0, 2 S-units into the noise.
73,
Fred K6DGW
Sparks NV USA
Washoe County DM09dn
On 12/31/2016 11:25 AM, Fred Jensen wrote:
> One can do this with the NCDXF Beacons ... they change in four 10 dB
> steps, 100 W, 10 W, 1 W, and 100 mW. No sunspots right now, but you
> might be able to hear one or two of them on 14100. Most interesting
> thing I notice is, while the 100 W signal may be S6 in S2 noise, I can
> still hear the 100 mW signal which should be 40 dB down [~S0]. The math
> is sound and exact, the reality ... not so much.
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