Re: [IRCA] [NRC-AM] Reviewing SDR DX
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [IRCA] [NRC-AM] Reviewing SDR DX



But that begs the question 'what's the point ? '

Russ Edmunds
15 mi NNW of Philadelphia  
Grid FN20id
<wb2bjh@xxxxxxxxx>


--------------------------------------------
On Sat, 1/11/14, Walter Salmaniw <canswl@xxxxxxxxx> wrote:

 Subject: Re: [IRCA] [NRC-AM] Reviewing SDR DX
 To: les@xxxxxxxxxxxxxxxx, "Mailing list for the International Radio Club of America" <irca@xxxxxxxxxxxxxxxx>
 Date: Saturday, January 11, 2014, 1:17 PM
 
 That's funny.  Now, move up to
 the Perseus or WinRadio, and you suddenly
 have a much bigger problem.  That is, 1600 or 2000 kHz
 of spectrum!  My
 solution, don't record unless things are really hot, or on
 DXpeditions.
  Having said that, I have TB of recordings.  I'd like
 to outsource to India
 or China for analysis ;-).  Don't know when I'll ever
 have the time to
 analyze thoroughly!   73,...Walt
 
 
 On Sat, Jan 11, 2014 at 9:44 AM, Les Rayburn <les@xxxxxxxxxxxxxxxx>
 wrote:
 
 > Best advice I've got so far was an off-list reply that
 said:
 >
 >
 > Spent less time writing to, and reading responses from
 e-mail lists
 > devoted to your hobbies.
 >
 > :-)
 >
 > Russ's is a close second. SDR's may simply be too much
 of a good thing. I
 > remember a few years ago when I used "Total Recorder"
 to record TOH ID's on
 > a single channel. I reviewed these during my half hour
 long commute to work
 > in the morning, and again while driving home in the
 evening. Even then, I
 > often couldn't get through an entire night's
 recordings.
 >
 > SDR's have just magnified the problem. Plus my SDR-IQ
 is a great, but not
 > quite the performer that my old Drake R8-B was. And
 it's difficult to use
 > an SDR with a phaser, because of the small latency
 issues. It makes it
 > difficult to adjust for the best null.
 >
 > 73,
 >
 > Les N1LF
 >
 >
 >
 >
 > On 1/11/2014 11:18 AM, Russ Edmunds wrote:
 >
 >> So far, despite the obvious temptation, my strategy
 has been to resist
 >> getting an SDR.
 >>
 >> :-}
 >>
 >> Russ Edmunds
 >> 15 mi NNW of Philadelphia
 >> Grid FN20id
 >> <wb2bjh@xxxxxxxxx>
 >>
 >> 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 <les@xxxxxxxxxxxxxxxx>
 wrote:
 >>
 >>   Subject: [NRC-AM] Reviewing SDR
 DX
 >>   To: "am@xxxxxxxxxxx" <am@xxxxxxxxxxx>,
 "irca@xxxxxxxxxxxxxxxx"
 <
 >> irca@xxxxxxxxxxxxxxxx>
 >>   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? owner@xxxxxxxxxxx
 >>   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
 > IRCA@xxxxxxxxxxxxxxxx
 > 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: irca@xxxxxxxxxxxxxxxx
 >
 >
 _______________________________________________
 IRCA mailing list
 IRCA@xxxxxxxxxxxxxxxx
 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: irca@xxxxxxxxxxxxxxxx
 
 

_______________________________________________
IRCA mailing list
IRCA@xxxxxxxxxxxxxxxx
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: irca@xxxxxxxxxxxxxxxx