|
Andy,
Is there any way the slots could be filled
using a pc ... ? if a small exe could be run to make a cw pulse then
that would be no problem ?
G ..
Sent: Monday, March 16, 2009 9:36 PM
Subject: Re: LF: RE: Syncback software
See you just have - got quite a shock until I realised the noise had
plummeted as well.
Any takers for the 5 and 6 minute slots?
2009/3/16 Gary - G4WGT <[email protected]>
Andy,
OK,
I will insert an attenuator at the antenna socket (that’s an easy move) &
watch how it performs. It is switched at 10dB steps so I will start at 10db of
course.
Cheers,
Gary.
Doesn't
matter which - just total system gain. That S/W works best if the noise
threshold rides at about 10dB above the baseline, then it allows for up
to 70 - 80dB of signal peaks.
2009/3/16
Gary - G4WGT <[email protected]>
Alan,
When you wrote :-
my only comment is that you may have too much gain in
the system.
Are you
meaning sound card or receiver gain?
Gary.
To: [email protected]
Subject: Re: LF: RE:
Syncback software
Hi Gary my only comment is that you may have too much
gain in the system. It
is sometimes better to have the noise further down
nearer the axis.
I am afraid there is a major problem with this kind of
beacon, when the
fading period is shorter than the sampling interval, so
you dont really know
what the path is doing. The only reliable points are
the peaks, the troughs
dont really mean anything without some very
sophisticated analysis and
probably two spaced receivers. However it does
give a snapshot of the band
without taking up too much bandwidth (this was
what was required for 5MHz
too). Despite all the data collected very little
analysis has actually be
done on the 5MHz data collected by this program.
The one succesfull bit of
work was that published in Radcom by Marcis
Walden G0IJZ. I used it for some
time whilst Andy was testing the Poldhu
beacon on 160m and also during the
1st two months that ran. I was certainly
surprised by the daytime path on
160m from here. I have seen the data
collected in Canada via Joe Craig VO1NA
and it is difficult to see how to
use it.
Still if you dont collect the data you will never
know!!
Alan G3NYK
----- Original Message
-----
From: "Gary - G4WGT" <[email protected]>
To: <[email protected]>
Sent: Monday, March 16,
2009 6:35 PM
Subject: RE: LF: RE: Syncback software
> Hi
Graham, LF,
>
>
>
> The original HTML Code for the 2
minute refresh is still inserted into the
> page format, so upload is 30
minute intervals with Syncback & 2 minute
> refresh. I have left the
refresh in case I revert back to the original
> grabber page. I will
look at changing it if I continue to use the beacon
> chart
upload.
>
>
>
> I would like to have feedback from the
LF group regarding the page, if you
> check it out periodically, is it
useful to you, what are you looking for.
>
>
>
> You
can view the chart on my web site at :-
>
>
>
> http://myweb.tiscali.co.uk/wgtaylor/grabber3.html
>
>
>
>
73
>
>
>
> Gary -
G4WGT.
>
>
>
>
>
>
_____
>
> From: [email protected]
> [mailto:[email protected]] On Behalf Of
Graham
> Sent: 16 March 2009 17:20
> To: [email protected]
> Subject: Re: LF: RE:
Syncback software
>
>
>
> Hi
Gary,
>
>
>
> The page seemed to refresh quite
often ... are there two settings ?
>
>
>
> G
..
>
>
>
> From: Gary - G4WGT <mailto:[email protected]>
>
> Sent: Monday, March
16, 2009 10:40 AM
>
> To: [email protected]
>
> Subject: RE:
LF: RE: Syncback software
>
>
>
> Hi Graham,
LF,
>
>
>
> You wrote :-
>
>
>>>Upload is set at 5 minute intervals and auto refresh at 2
minute
> intervals. <<< that could be backed off to 15
mins as the beacon only
> sends every 15
??
>
>
>
> I mentioned in my previous mail to ignore
the text on the page as it was
> originally for grabber 1 for when I
upgrade the web site (to a new design
&
> better navigation etc),
also mentioned is that upload is every 30
minutes.
>
>
>
> If the uploaded chart proves useful
or interesting to operators & viewers
> then I will change the text
& make it a permanent feature for the
> foreseeable
future.
>
>
>
> BTW :-
>
>
>
>
For those of you who are not familiar with the chart
-
>
>
>
> The RED trace is Andy's (G4JNT) beacon
signal & the BLACK trace is the
noise
> level at my
QTH.
>
>
>
> The Blue & GREEN are not in use &
should be ignored on this chart as they
> are for the other beacons used
when monitoring on the 5MHz allocation.
>
>
>
>
Cheers,
>
>
>
> Gary -
G4WGT
>
>
>
>
>
>
_____
>
> From: [email protected]
> [mailto:[email protected]] On Behalf Of
Graham
> Sent: 15 March 2009 22:17
> To: [email protected]
> Subject: Re: LF: RE:
Syncback software
>
>
>
>
Gary..
>
>
>
> That looks good ... 0500 looks
best time for a qso .. see you then Smile
>
emoticon
>
>
>
> >>>Upload is set at 5 minute
intervals and auto refresh at 2 minute
> intervals. <<< that
could be backed off to 15 mins as the beacon only
> sends every 15
??
>
>
>
> the 15 db over the noise in day time
is the same at this qth .. looks
like
> the big dips round 1900
where just when we where testing .. typical
hihi
>
>
>
> tnx- G ...
>
>
>
>
From: Gary - G4WGT <mailto:[email protected]>
>
> Sent: Sunday, March
15, 2009 7:55 PM
>
> To: [email protected]
>
> Subject: LF:
RE: Syncback software
>
>
>
>
LF,
>
>
>
> I have now got the software, Syncback
running correctly (I think).
>
>
>
> The purpose of
this is to upload the chart from Andy's beacon as received
> here to my
web site periodically, ie. every 30 minutes.
>
>
>
> I
now have a receiver running 24/7 monitoring Andy,s beacon on
503.7KHz.
>
>
>
> You can view the chart on my web
site at :-
>
>
>
> http://myweb.tiscali.co.uk/wgtaylor/grabber3.html
>
>
>
>
For the moment ignore the text on the page as it is originally designed
to
> use with the 500KHz grabber when I renew my web site design. If it
is a
> useful upload I will make it a permanent feature but may have to
extend
the
> frequency coverage of grabber 1 so not to overload the
PC with operations
> which will cause the PC to
struggle.
>
>
>
> Let me have your comments
please.
>
>
>
> 73
>
>
>
>
Gary - G4WGT.
>
>
>
> _____
>
>
From: [email protected]
> [mailto:[email protected]] On Behalf Of Gary -
G4WGT
> Sent: 15 March 2009 16:10
> To: LF -RSGB LF Group
>
Subject: LF: Syncback software
>
>
>
> Hi
LF,
>
>
>
> If anyone is using Syncback software &
can help, please.
>
>
>
> I am tying to upload a file
to my website who's filename does not change,
> only the file size
changes. I tried to do it with Argo-upload but failed
so
> I
downloaded Syncback & still failing.
>
>
>
>
Syncback gives me the following message :-
>
>
>
>
**********************************
>
> Can connect, but unable to
change to destination directory:
>
> /chart01.bmp:not a
directory
>
> **********************************
>
>
The Syncback help does not give me the answer.
>
>
>
>
Any help will be appreciated
>
>
>
>
Or
>
>
>
> Will Argo-Upload do
it?
>
>
>
> Or
>
>
>
> Is
there something else to do it?
>
>
>
> Thanks in
anticipation,
>
>
>
>
73,
>
>
>
> Gary - G4WGT -
IO83QP.
>
>
>
> _____
>
>
>
No virus found in this incoming message.
> Checked by AVG - www.avg.com
> Version:
8.0.237 / Virus Database: 270.11.13/2001 - Release Date: 03/14/09
>
06:54:00
>
> _____
>
>
> No virus found
in this incoming message.
> Checked by AVG - www.avg.com
> Version:
8.0.237 / Virus Database: 270.11.15/2003 - Release Date: 03/15/09
>
14:07:00
>
>
No virus found in this incoming message.
Checked by AVG -
www.avg.com
Version: 8.0.237 / Virus Database: 270.11.15/2004 - Release
Date: 03/16/09 07:04:00
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