Did you import the database from 2.0.5 into 2.0.16? -Tim --- W4TME FlexRadio Systems Internet Systems Admin. Product Verification Team Tune In Excitement™
On 11/20/2010 6:54 PM, David Feldman wrote:
This afternoon I had my first QSO with the Flex 1500 and PowerSDR 2.0.16 using an external keyer. I'm an absolute beginner with any flexradio product - I bought the rig long ago, received it when they began shipping, and put it on the shelf (as I'm exclusively CW op) until 2.0.16 beta was released. So, today is my first on-air experience with the rig. I was able to upgrade from 2.0.5 (out-of-the-box CDROM) to 2.0.16 beta without any difficulty. Where I'm struggling: I notice a pronounced "hesitation" effect with the first transmit symbol, and also hear a slightly off-frequency carrier (on another receiver in the shack) during transmit - a kind of "backwave" but not on the exact TX frequency. I don't think either of these is news to the developers or reflector, but I just wanted to see if I should be making any configuration/operational changes before putting rig back on shelf awaiting later software version. I did try adjusting CW TX buffer size between 256 and 2048 and didn't see much difference. I did find it necessary to run keyer's own sidetone (with "Disable Monitor" selected on powersdr) as powersdr sidetone is delayed enough vs actual sending, and powersdr sidetone audio level is dependent on transmit drive level (which means no powersdr sidetone when tx power turned down to 0 for testing.) To work around the first-symbol hesitation, I was able to complete a QSO by setting the "break in delay" parameter to ~750 mSec (so basically I could send a whole transmission without the rig dropping back into receive.) I tried a simple test of sending a string of dits at modest speed, and adjusted the Delay parameter down to 0 mS (QSK hoped for) and discovered the shack receiver was not hearing any useful signal (certainly not a string of dits). Until the delay was set long enough to keep the rig in transmit between dits, I could not obtain a workable transmit signal. The machine is an ATOM 1.6 GHz box with XP and is doing nothing but running powersdr. CPU utilization seems to be 50-60%. I looked at the flexedge archives and 2.0.16 release notes and didn't see any advice that seems directed at the first-symbol hesitation which is my main concern. Thanks for any advice, 73 Dave WB0GAZ _______________________________________________ Flexedge mailing list [email protected] http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using beta versions of the software.
_______________________________________________ Flexedge mailing list [email protected] http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using beta versions of the software.
