Hi Guys,
I really appreciate _rtty@contesting.com_ (mailto:rtty@contesting.com) as
I've still got a lot to learn about RTTY.
Am I understanding recent comments correctly that say "FSK stations
typically have worse RTTY sidebands and clicks than properly adjusted AFSK
stations"?
I wondering whether to use FSK or AFSK on my K3 and FTdx5000. Or perhaps
AFSK on the K3 and FSK on the FTdx5000? (which method would create the
cleanest sidebands?)
Hope to work you in the WPX RTTY Test this weekend!
73,
Dick- K9OM
From: Kok Chen <chen@mac.com>
To: RTTY Reflector <rtty@contesting.com>
Cc: Bill Turner <dezrat1242@wildblue.net>
Subject: Re: [RTTY] Change in pileup procedure?
Message-ID: <2F228A20-E260-46CE-A5AB-595256D3FA91@mac.com>
Content-Type: text/plain; charset=us-ascii
On Feb 5, 2014, at 12:38 PM, Bill Turner wrote:
> What am I missing?
Let me explain.
The keying sidebands of a continuous phase FSK signal is down only about
50 dB, even when 1 KHz away from the signal. A waveshaped AFSK signal or a
K3 FSK signal will not be as poor, and a phase coherent FSK signal will be
much worse, but lets assume that a lot of people in the pile are using
continuous phase FSK (what most DDS superhet rigs today use).
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