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

[Walter Salmaniw <canswl@xxxxxxxxx>]

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
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>>
>
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