Tim, I think you don't understand my post. Please read again or tell me
why you need a DSP buffer to create a sinus wave? CW is nothing more
then a sinus wave. No DSP filtering needed to be able to output a sinus
wave.
Regards,
Erwin.
On 24-11-2010 13:55, Tim Ellison wrote:
You can't have a zero size DSP buffer. DSP is the "heart" of the radio and
does other things in addition to determining filter characteristics.
I recommend waiting for CW, Part II
-Tim
-----Original Message-----
From: [email protected] [mailto:[email protected]]
On Behalf Of Erwin van den Bosch (PA7N)
Sent: Wednesday, November 24, 2010 3:34 AM
To: [email protected]
Subject: [FlexEdge] CW transmit Flex 1500 and latency
Just a thought:
When I install 2.0.16 all DSP buffer sizes are 2048. For SSB and Digi modes I
can understand that because the filtering is better with A large buffer size
instead of A small buffer size.
But when transmitting CW I think the DSP transmit buffer (not the USB/audio
buffer) can be zero because you don't need filtering on the CW carrier. Just
generate a nice sinewave (via calculation or a simple lookup table). By doing
this without DSP buffers the latency may be a little less when transmitting CW.
Regards,
Erwin
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