Ah, I'm sorry, I didn't realise that there were "experts" about. Please
google "expert" they will become clear when you do. I, as a non-expert,
will not have anything to say untill the "experts" have advised you as to
what you should do in future.
I will now bow down to the experts in this list and no longer give my advice
before the "experts" have held forth in future. (This is not about anyone
from Elecraft, who will probably actually be experts in their field, but
those who decide that everyone else is wrong until they agree with them, the
experts.)
Dave (G0DJA)
----- Original Message -----
From: "Joe Subich, W4TV" <[email protected]>
To: <[email protected]>
Sent: Sunday, October 13, 2013 5:59 PM
Subject: Re: [Elecraft] Interface and Ham Radio Deluxe
You can still reduce the audio from the soundcard program and,
infact, this is what another bit of kit called the "PSK Meter"
effectively does.
The problem with just using the sound card output level is that once
the slider gets down around 10 - where it will be if you are driving
an electret input without an attenuator - it is quite difficult to
adjust accurately. Since a mic input designed to work with a dynamic
mic will be *another 20+ dB more sensitive* it is almost impossible to
adjust between "no audio" and "overdriving the mic preamp" with the
Windows mixer.
Remember, typical audio levels are:
Sound card at maximum: 1.5 V RMS
Electet mic: 75mV RMS (26 dB below sound card)
Dynamic mic: 5mV RMS (26 dB less than electret, *50 dB* less
than maximum sound card level).
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[email protected]
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
