[hpsdr] PennyMerge I/Q REcording

[Joachim DL7JP]

Dear all,

here's an update on my problem with I/Q recording:

- I updated today to the most recent version (PowerSDR 2025, 
  Ozy 12, Merc 26, Pen 11); I had to run  usbblaster.bat 
  each time I power cycled Ozy, otherwise the update script 
  would complain abt lacking cable (the Altera USB Blaster 
  device is gone after switching the boards off...). 
  
- This configuration has on my PC some problems with audio 
  "pops" at  19200 Sample rate and 2048 Buffer size: every 
  few seconds an audio drop out - both TX and RX). It works 
  OK with 1024 buffer size or at 9600/2048.
  PC is Intel Core 2 CPU 6400 @ 2.13 GHz, 2 GB RAM, Win XP.

- Recording is still distorted at 19200: slightly too fast in 
  playback and popping noise; it works OK at 9600 sample rate.

Since it works for Stijn PE1RKS, I am wondering what could be
wrong in my setup ... any ideas?


tnx es 73, Joachim.
  


> -----Ursprüngliche Nachricht-----
> Von: Joachim DL7JP [mailto:dl7jp at gmx.net]
> Gesendet: Dienstag, 3. März 2009 12:28
> An: HPSDR Reflector
> Betreff: AW: [hpsdr] PennyMerge I/Q REcording
> 
> Stijn PE1RKS:
> 
> > Did some tests this morning and with all the latest versions for
> Merc.
> > Pen. and PSDR at least the recording and playback (with 11kHz freq
> > shift
> > in PSDR) seem to work.
> 
> Thanks a lot! I did not upgrade to the latest firmware for Pen/Merc
> yet but if this sorts out the problem I will do so asa I return
> from my current business trip.
> 
> 73, Joachim.



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