BUT,
The filter that must be specified for DATA mode TX is the 2.7 (or 2.8)
kHz filter. You cannot use the wider filters for DATA mode transmit -
the firmware prevents it (unless you lie to the K3 about which filter is
which width). You can use a wider filter for receive, but that does not
help transmit. The transmit audio width is fixed by the DSP, so a wider
filter will not increase that limit.
What is wrong with using the split arrangement that is provided by the
computer software - no "work-arounds" needed, it makes everything
seamless, and can automatically put the K3 into split mode.
73,
Don W3FPR
On 10/7/2013 7:31 PM, Charlie T, K3ICH wrote:
I believe that figure of 3400 Hz is the AUDIO bandwidth which is
equivalent to an AM bandwidth twice that, or 6.8 kHz. If I am
correct, then you can most certainly take advantage of your 6 kHz AM
filter which will limit your broadcast audio bandwidth to 3.0 kHz.
The 15 kHz filter will get you an extra 400 Hz.of audio, but is
probably not practical due to the excessive bandwidth. Save that one
for FM.
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