Agreed, auroral CW is more hiss than tone. A bit more challenging to copy.
73
Bob, K4TAX
----- Original Message -----
From: "VE1BN" <ve1bn@eastlink.ca>
To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Sent: Wednesday, January 16, 2008 12:41 PM
Subject: Re: [TenTec] Argonaut II internal CW audio filter?
Steve -
I have worked VHF auroral CW many years in the past. Auroral CW does
sound
like a hiss.
The northern lights breaks up the CW into a hissing sound. not like
regular
HF CW sounds
that you might expect..
73 - Don, VE1BN
----- Original Message -----
From: "Steve Berg" <wa9jml@tbc.net>
To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Sent: Wednesday, January 16, 2008 2:29 PM
Subject: Re: [TenTec] Argonaut II internal CW audio filter?
I am looking for a way to either disable the internal audio low pass CW
filter in my Argonaut II, or else raise its cutoff frequency quite a
bit. I believe that presently it has a cutoff at 1 KHz, and that makes
it difficult to copy auroral CW signals which sound like someone hissing
in Morse. I use the old radio as the tunable IF rig with my VHF
transverters.
73,
Steve WA9JML
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