Joe Taylor wrote:
In response to questions I have been getting: MAP65 could
run with Winrad or with various SDR's if their software is
modified to provide the necessary multicasting capability.
In itself, this would not be too difficult.
Joe,
the latest version of Winrad has an hook such that an external DLL can be written with a callback routine which is
invoked each time Winrad receives a new audio buffer from the sound card. The audio data passed to the DLL are raw,
time-domain data, no processing done on them. Two buffers are passed, 512 samples each (I and Q), integer format
normalized to 24 bits even if the sound card is capable of 16 bits only.
The document that describes how to write such a DLL meant to be used with
Winrad is here :
http://www.weaksignals.com/bin/Winrad_Extio.pdf
From inside that DLL, once received the data, one could decide to send them via
UDP packets, or the likes.
However, one of the most important MAP65 features is its
automatic Rx-polarization-matching capability. That
requires a receiver with full xpol processing, which (as far
as I know) is not now provided by Winrad, SDR-1000, SDR-14,
or SDR-IQ.
Correct, at least for Winrad. Though xpol processing is among the things that eventually will get implemented, it is not
present in the current version.
73 Alberto I2PHD
#############################################################
This message is sent to you because you are subscribed to
the mailing list <linrad@antennspecialisten.se>.
To unsubscribe, E-mail to: <[EMAIL PROTECTED]>
To switch to the DIGEST mode, E-mail to <[EMAIL PROTECTED]>
To switch to the INDEX mode, E-mail to <[EMAIL PROTECTED]>
Send administrative queries to <[EMAIL PROTECTED]>
