K3 S-meter reading and coax input or antenna voltage ?

[Elecraft mailing list]

If I had an S-meter reading, S9 for example, on my K3, what could I infer about the voltage level of that signal at the Coax input to my K3?

A table I found on the Internet for singals below 30 MHz says that an S-9 meter reading is a signal of 50-microvolts but where in the system is that registering 50 microvolts.  At the input the K3 or some other circuit within the K3?

Thanks -- just mostly curious about this and the connection between S-meter reading and actual signals input to the receiver.

73, phil, K7PEH


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[Lyle Johnson]

Phil,

With the original K3, S Meter "ABS" mode the S meter is referenced to
the signal level at the antenna jack.  S9 = -73 dBm = 50 uV into 50 ohms.

In the other S Meter mode, the reading varies with ATT and PRE settings,
as well as signal level.

73,

Lyle KK7P

On 1/23/19 10:00 AM, Phil Hystad via Elecraft wrote:
> If I had an S-meter reading, S9 for example, on my K3, what could I infer about the voltage level of that signal at the Coax input to my K3?
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[Wes Stewart-2]

At the antenna spigot.

On 1/23/2019 10:00 AM, Phil Hystad via Elecraft wrote:

> If I had an S-meter reading, S9 for example, on my K3, what could I infer about the voltage level of that signal at the Coax input to my K3?
>
> A table I found on the Internet for singals below 30 MHz says that an S-9 meter reading is a signal of 50-microvolts but where in the system is that registering 50 microvolts.  At the input the K3 or some other circuit within the K3?
>
> Thanks -- just mostly curious about this and the connection between S-meter reading and actual signals input to the receiver.
>
> 73, phil, K7PEH
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]
>

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