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Re: [IRCA] [NRC-AM] Reviewing SDR DX
- Subject: Re: [IRCA] [NRC-AM] Reviewing SDR DX
- From: Russ Edmunds <wb2bjh@xxxxxxxxx>
- Date: Sat, 11 Jan 2014 10:21:28 -0800 (PST)
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!
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Prices!
>> Details at http://www.nrcdxas.org
>>
>>
>
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