So far, despite the obvious temptation, my strategy has been to resist getting an SDR.
:-} Russ Edmunds 15 mi NNW of Philadelphia Grid FN20id <[email protected]> AM: Modified Sony ICF 2010's barefoot FM: Yamaha T-80 & T-85, each w/ Conrad RDS Decoder; Onkyo T-450RDS; Tecsun PL-310 ( 2); modified Sony ICF2010 w/APS9B @ 15'; Grundig G8 w/whip; modified Sony ICF2010 w/whip -------------------------------------------- On Sat, 1/11/14, Les Rayburn <[email protected]> wrote: Subject: [NRC-AM] Reviewing SDR DX To: "[email protected]" <[email protected]>, "[email protected]" <[email protected]> Date: Saturday, January 11, 2014, 12:02 PM I'm curious to hear how other DX'ers tackle "data management" when it comes to the use of I/Q recordings from SDR receivers. My SDR-IQ allows me to record 192 KHz of bandwidth, and using HDSDR software, I've started recording TOH periods overnight. I record about four minutes per hour, starting at local sunset and continuing through sunrise. This provides a total of 19 MW channels to be reviewed per hour, Recording for 4 minutes over a ten hour period, leaves me with 760 minutes of data to be reviewed daily. Some channels are nearly impossible to find new ones on, so these can be reviewed quickly, checking only for unusual conditions. But it's still a massive amount of data. Since starting this just a few days ago, I've already deleted days of recordings, unchecked, simply because there is no practical way to review it all. Perseus owners would have an even bigger issue, due to the much wider bandwidth that can be recorded. The entire AM band for instance! What strategies have other DX'ers found successful for managing the data? I've considered recording just the sunrise/sunset periods, or waiting for a night with unusual conditions to record TOH ID periods only, or even simply recording for a week in mid-winter, then taking my sweet time to review them during the summer. -- -- 73, Les Rayburn, N1LF 121 Mayfair Park Maylene, AL 35114 EM63nf 6M VUCC #1712 AMSAT #38965 Grid Bandits #222 Southeastern VHF Society Central States VHF Society Life Member Six Club #2484 Active on 6 Meters thru 1296, 10GHz & Light _______________________________________________ The NRC AM mailing list Questions? [email protected] Antenna Pattern Book Now Shipping AM Radio Log is now shipping! FM Atlas 21st Edition Close Out Prices! Details at http://www.nrcdxas.org _______________________________________________ IRCA mailing list [email protected] http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: [email protected]
