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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 09:18:19 -0800 (PST)
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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