ARISSat TLM: Sample rate of Signalink
While I have been decoding some frames in an earlier pass using another pc, I have no luck using the Signalink USB attached to to AF-Port on the IC910H (cw decoding works very well)
How can I verify it's sample rate and - if necessary - set it to 48 kHz ?
thanks
Werner, HB9BNK
Werner,
I have had exactly the same results, and yes, 48 kHz is correct according to the program author. Based on reports I have received, and considerable experimentation, it seems to be a poor performer in this mode. So far, nobody has reported success with the unit on any radio. Other cards work fine, even holding a microphone in front of the speaker. There is nice discussion here about both internal noise and non-linear response issues, and some fixes here:
http://www.frenning.dk/OZ1PIF_HOMEPAGE/SignaLinkUSB-mods.html
I am retiring the unit, so will not be trying these modifications to see whether that helps. From reports I have received, a simple audio patch between the rig and a standard soundcard works well.
73s,
Alan WA4SCA
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Werner, HB9BNK Sent: Sunday, August 07, 2011 8:49 AM To: AMSAT-BB Subject: [amsat-bb] ARISSat TLM: Sample rate of Signalink
While I have been decoding some frames in an earlier pass using another pc, I have no luck using the Signalink USB attached to to AF-Port on the IC910H (cw decoding works very well)
How can I verify it's sample rate and - if necessary - set it to 48 kHz ?
thanks
Werner, HB9BNK _______________________________________________ Sent via [email protected]. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
I ended up using the Signalink for SSTV RX and went from speaker out on radio to mic in on computer to decode frames.
Dave - KB1PVH
Sent from my Verizon Wireless DROID X
At 9:17 AM -0500 8/7/11, Alan P. Biddle wrote:
Based on reports I have received, and considerable experimentation, it seems to be a poor performer in this mode. So far, nobody has reported success with the unit on any radio.
The SignaLink USB worked for me. I copied 39 telemetry frames on the first full-daylight pass here in San Diego using the unmodified SignaLink USB hooked between the 6-pin data port of an IC-7000 and a MacBook Air, with manual tuning, omni antenna, and obstructed horizons.
73 -Paul [email protected]
Paul,
That's one! Thanks for the report.
Alan WA4SCA
-----Original Message----- From: Paul Williamson [mailto:[email protected]] Sent: Sunday, August 07, 2011 10:12 AM To: [email protected] Cc: 'Werner, HB9BNK'; 'AMSAT-BB' Subject: [amsat-bb] Re: ARISSat TLM: Sample rate of Signalink
At 9:17 AM -0500 8/7/11, Alan P. Biddle wrote:
Based on reports I have received, and considerable experimentation, it seems to be a poor performer in this mode. So far, nobody has reported success with the unit on any radio.
The SignaLink USB worked for me. I copied 39 telemetry frames on the first full-daylight pass here in San Diego using the unmodified SignaLink USB hooked between the 6-pin data port of an IC-7000 and a MacBook Air, with manual tuning, omni antenna, and obstructed horizons.
73 -Paul [email protected]
Thank you Alan for the time-saving information !
Actually I wanted to 'upgrade' from the simple soundcard to the available Signalink and now it is the other way round - hi.
Listening with the pc soundcard this morning produced good results.
And thanks for the link to OZ1PIF's impressive work !
Werner, HB9BNK
Am 07.08.2011 16:17, schrieb Alan P. Biddle:
Werner,
I have had exactly the same results, and yes, 48 kHz is correct according to the program author. Based on reports I have received, and considerable experimentation, it seems to be a poor performer in this mode. So far, nobody has reported success with the unit on any radio. Other cards work fine, even holding a microphone in front of the speaker. There is nice discussion here about both internal noise and non-linear response issues, and some fixes here:
http://www.frenning.dk/OZ1PIF_HOMEPAGE/SignaLinkUSB-mods.html
I am retiring the unit, so will not be trying these modifications to see whether that helps. From reports I have received, a simple audio patch between the rig and a standard soundcard works well.
73s,
Alan WA4SCA
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Werner, HB9BNK Sent: Sunday, August 07, 2011 8:49 AM To: AMSAT-BB Subject: [amsat-bb] ARISSat TLM: Sample rate of Signalink
While I have been decoding some frames in an earlier pass using another pc, I have no luck using the Signalink USB attached to to AF-Port on the IC910H (cw decoding works very well)
How can I verify it's sample rate and - if necessary - set it to 48 kHz ?
thanks
Werner, HB9BNK _______________________________________________ Sent via [email protected]. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
participants (4)
-
Alan P. Biddle -
Dave Webb KB1PVH -
Paul Williamson -
Werner, HB9BNK