You have recorded the audio incorrectly for playing IQ files. The Quick
Record and Playback controls are intended for playing back audio
recorded off the air back *over* the air and they are not suited for
playback if you are not transmitting.
Here is the procedure for what you are wanting to do.
First make sure that the Options in the Wave form are set for the
defaults. Receive: Pre-processed audio / Transmit: Post-processed Audio.
Second, click on the RECORD button to start the recording. Click on it
again to stop recording. It will create a unique mode and time stamped
IQ audio file.
To play it back, click on ADD in the Playlist section, select the file
you want to play and then click on Play in the PlayBack section. Click
on the Loop button if you want to loop the recording.
The IQ recorded audio will not be on frequency. There isn't any meta
data in the IQ recording to tell the DDS how to set itself properly so
that the VFO matches the frequency you recorded at.
Tim Ellison, W4TME
Product Management, Sales & Support
FlexRadio Systems^(TM)
4616 W Howard Ln, Suite 1-150
Austin, TX 78728
Phone: 512-535-4713 Ext. 223
Email: t...@flexradio.com <mailto:t...@flexradio.com>
Web: www.flexradio.com <http://www.flexradio.com>
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On 1/30/2012 11:07 PM, John Vandenberg wrote:
I tried this on both F5K and F1.5K and get same results
Spectrum Recording procedure
- Click 'Wave' on the menu (in PWRSDR) to open the Wave Panel
- Set TX Gain 0 dB
- Click 'Quick Rec' button to start recording (turns Yellow)
- Click the 'Quick Rec' button again and it stops recording (turns White)
- A message pops up telling you the location and file name.
(SDRQuickAudio.wav)
Note: if you intent to keep the recording make a copy ASAP before
doing a new recording since it will be overwritten
Playback of the Frequency Spectrum
Open the 'Wave' panel
Click 'Add' on the Play-list
Browse to the recording of interest and click 'Open'
The file will be added to the playlist
Hit the 'Play' (or Quick Play) button in Playback to play the spectrum
back. (button turns Yellow)
Description of problem
- see a something like a double sideband displayed in the spectrum
display. Could this be the I/Q signals?
- I do not see the spectrum display I saw when I was recording
- when I tune to one of these (side-bands??) I hear the station that
the rig was tuned to while recording
Question
- What is the problem?
John, ve3dvv
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