View Full Version : DW Wertachtal / Sines 3995 kHz
Nothing between 4 and 5 UTC last night.
mitajohn
31-01-2006, 06:44
Hi all,
Apart from the usual morning problem the rest was an excellent result.
John.
Hi all,
good results last night in Switzerland, see attachment
Simone
Hi,
This evening also... Until the timer switched off the receiver :mad:
Terje
stegewicht
09-02-2006, 08:47
Hello,
this is a reception-report for a mobile reception
from Chemnitz to Hermsdorfer Kreuz (motorway-cross A4/A9).
Pefect receptrion of telephone quality.
And almost nothing between 4 and 5:15
Hi,
I just tried out my new ferrite rod, and found out that in spite of the manufacturers specified upper frequency limit of 2 kHz it works quite well on higher bands.
Dropouts are mainly caused by myself, trying out an alternative power supply (see my recent post under "soundcard issues").
BTw DRM on 3995 kHz is like the Volkswagen Beetle - no good sound, but reliable.......
Hi,
A log from last night until this morning from 2300 to 0930 UTC.
The dropout before sunrise must be the lack of ionization.
Terje
I continued logging after local midnight. Stable conditions during the night.
Trouble started in the early morning and once again after sunrise, when even shifting to another antenna helped only for short time.
BTw the ferrite antenna seems to work quite good under "regular" conditions even in the 75m band. I think I achieved my all time high SNR for this QRG!
Hi,
Look, no morning sickness on the 13th Feb.
Terje
Hello to all,
Overnight log from friday to saturday in the living-room of the house. TV set, VCR, various fluorescent lights are on very close to the receiver until 00:00 UTC. No QRM occured. In the morning, propagation or neighborough's QRM.
73, de Stephane
Hi,
Here is the log for last nights transmission with the usual 2 hours dropout before sunrise.
Terje
Here is my log from last night. Now it is very easy to see the reason for the 2 hours audio hole in the early morning. The signal just gets weaker and weaker in this period, as you can see in the green dbµV graph. It lost more than 40dB.
mitajohn
17-02-2006, 07:44
Hi all,
After a successful operation and a 10day stay in Hospital, Thank God, I'm back.
Here's the last night's result. No change of bit rate in the morning and the signal turned too faint. What's changed?
John.
Hi,
Bad result last night; perhaps it is the skip zone?
Terje
mitajohn
18-02-2006, 11:12
Hi all,
Here's another overnight unattended log. It is obvious that the change of the BR occured 1.5 hours later than before, as seen in the comparison with the 2nd graph. Why this? any explanation, propagation problems due to season change?
John.
mitajohn
19-02-2006, 07:29
Hi all,
Here's another overnight unattended log not so good. It is obvious that Dream cannot cope the BR change at that time. Today I will do the same with DRMSOFT.
John.
Hi all,
good results last night, perfect decoding with a strong signal all night, see attachment (including signal strength)
Simone
mitajohn
20-02-2006, 08:43
Hi all,
Here's the overnight result on 3995. As you can see is not too good,as before, even at the low BR. There were a dramatically fall of the SNR level, sometimes, more than 10 dBs campared to my reception reports during November and December 2005, as you can see in the attachments. I started thinking the days when I was saying that "200 kW is a waste of energy if the TX does not cover large areas". Is it because of the change of season ie propagation problems? I am not sure of that.
@Simone I also see that there is a fall of the SNR in your last report.
John.
mitajohn
21-02-2006, 08:24
Hi all,
Same situation tonight. SNR below 20 dBs.
John.
Log from last night. Best SNR at daylight. But what changed at 8:15 UTC?
mitajohn
22-02-2006, 08:14
Hi all,
A bit better situation tonight. SNR a bit over 20 dBs and Dream cannot decode the portion of the higher BR.
John.
mitajohn
23-02-2006, 08:03
Hi all,
A much better situation tonight. SNR sometimes over 20 dBs and DRMSOFT can partially decode the portion of the higher BR, of course much better than Dream as seen in the second file. See the "pngs"
John.
Hi
Last night was generally OK.
Terje
mitajohn
24-02-2006, 07:39
Hi all,
A much much better situation tonight. SNR sometimes over 24 dBs (SNR seems to take a geat part here) and DRMSOFT can partially decode the portion of the higher BR during the usual morning problems. I cannot explain the two (????) big dropouts. See the "png"
John.
Hi,
Started logging a little too late last night. Here is my log until 07 UTC.
Terje
Hi all,
good results until 0330, but then only a very weak signal (green graph for signal strength)
Simone
Hi all.
Her is my first log from this freq. First test on my small antenna on this freq.
33 min and 99% CDA very fine no QSB very stabil signal. No QRM .
mitajohn
25-02-2006, 07:25
Hi all,
A nearly excellent result tonight due to better conditions. After 0630 (change of BR) the signal turned to very weak and Dream was unable to lock and decode audio.
John.
Good morning .
Now super log from 3995 Khz ,622 min and 97% CDA .
This is from special home made antenna for 4Mhz. Only 20CM long.
Hi,
My best log so far. Perfect. (Except for the sound during the evening...)
Terje
Hi all,
quite good besides a few dropouts at times of a weak signal
Simone
mitajohn
28-02-2006, 07:21
Hi all,
Bad conditions=not good results, low SNR. What happened between 0200 and 0300 UTC?, it looks like an attempt to higher BR.
John.
Hi John and all
I cut out the same segment as John's from my log from last night. I think there was a change in bitrate during the night. The reception here was quite good during the morning hours. I enclose the .txt for you to compare with, just for fun.
Terje
Hi .
Log of 42min.
Very good signal. After 15 min switch of bitrate.
Hi all,
not bad last night, but again a weak signal in the early morning
Simone
Hi,
No switching last night and a period of weakness just before sunrise.
Terje
Hi,
Strong signal but no sound. That was the condition around 23 UTC yesterday. In the morning around 07 UTC the SNR was >20 dB. I added some Doppler / Delay history to the log.
Terje
mitajohn
03-03-2006, 06:57
Hi all,
This is an unattended log. Stronger signal, higher SNR than in my previous results and the usual morning problems. There was a TX break out as well as a change in the BR during the night.
John.
Hi,
Not so good last night. Around 2055 UTC last night I observed strong AM on ±10 kHz which could have been the reason for the lack of decoded audio drom DW. The rest was unattended. Looking at MUF for 200 km in the night and noticed that it was very low.
Terje
mitajohn
03-03-2006, 21:20
Hi all,
DW now is transmitting on 17.2 kbps with strong signal and rather high SNR at this hour. I will log it and report tomorrow.
John.
Hi,
Have they increased power or improved the antenna? What ever, snr is now very high and at 17.26khz AAC+ PS reception is very good. Impulse response is good see attached.
There is also a Journaline feed but I cant resolve.
Thats the way it should be, I trust it will continue.
PaulT
Hi all,
Quite the opposite here in Switzerland...:confused: :confused: :confused:
Terje
Hi all,
here are my results of the past two nights, quite different from what I usually get
Simone
mitajohn
04-03-2006, 08:35
Hi all,
Here's my report on 3995 (as I said in my previous post), except for the usual morning reception problems the rest was very good and the sound was rather good (no telephone sound) but I think it suffers from phase distortion. This is the first time I receive 3995 at "this" BR so good! I hope it will continue...
John.
Hi,
This doent't look promising... See you tomorrow morning - that is if my antenna does not snap under the weight of the snow...
Terje
mitajohn
05-03-2006, 07:15
Hi all.
I am disappointed....Back to the previous (telephone sound) situation, although the last result was very good! During the night (0200 - 0300) there was a change in the BR, I don't know how much because the log it was unattended. Overall, it was a very good result apart for the typical morning situation. See the log.
John.
Hi all,
again bad and strange results
Simone
Hi,
Maybe too close to the TX; I seem to be in the skip zone. The Channel Impulse Response was very bad in the beginning of the log. Now around 08 UTC the reception is OK.
Terje
Hi,
Much better last night except for a slight shake-up for an hour from 21 UTC.
Terje
Hi all,
very good results last night!
Simone
Hi,
Last night there was AM until about 2035 UTC. Enclosed is my log. The conditions here during the night were bad again.
Terje
mitajohn
07-03-2006, 07:09
Hi all,
After 2035 TX started at 17.4 kbps, for the rest see the unattended graph.
John.
Hi all,
bad results last night
Simone
Hi,
Early evening was good. Then again a bad night.
Terje
Hi all,
not bad when I started, but after 2020 signal strength dropped more than 15 dB. I hope the Sines transmissions will improve reception on this frequency.
Simone
Hello to all,
Very good (and in stereo) last night until 2300 UT, then Sines might have started. SNR was lower and not stable even with the laptop running on batteries only. I will wait to get my Degen antennas within a few days to have more serious reception conditions.
73, de Stephane
Hi,
By the way, here is the whole log for last night on Wertachtal.
Stephane
mitajohn
09-03-2006, 11:15
Hi all,
Back to 17.2 kbps. Here's the unattended last night's log. Not so good compared with the one on 3/3/06. See the log files.
John.
Hi,
Here is last nights log as it looked in Switzerland.
At 20 UT the S-meter showed a steady S9 +20 dB
At 21 UT it was still a steady S9 +20 dB
At 22 UT also and
at 2325 UT it showed a steady S9 +10 dB.
In the morning just before 07 UT there was slight QSB and the meter swayed between S9 +5 and S9 +15 dB.
Plus the usual fade-out during the hour before sunrise 0425-0530 UTC.
Terje
Hi,
Last night was (almost) perfect!
Terje
Hi,
The same. :-)
Stephane
Hi all,good results last night, stronger signal than from Sines the night before
Simone
mitajohn
11-03-2006, 07:37
Hi all,
Bad propagation conditions last night and bad weather conditions also. The result cannot be compared with my previous ones, there were much better ones. The log file is in two parts for better resolution. The SNR got higher much later than usual. I am not sure about the correct origin of the transmissions, if it is wrong please inform me to correct it, thanks. See the png.
John.
PS: The message is corrected, the second part is in the thread of Sines 3995.
Hi John,
from 2300- 0355 transmission was from Sines, better post the second attachment in the Sines thread, this also explains the higher SNR.
Simone
mitajohn
11-03-2006, 07:47
Hi Simone,
Thanks for the correction I will do it right now.
John.
Hi,
Yesterday I monitored 3,995 MHz from 1625 UTC until 0831 UTC this morning. I split the log in three parts, two for Wertachtal and one for Sines. Here are the reports for Wertachtal.
Terje
Hi all,
some problems around midnight, not bad during the night, see attachment
Simone
Hi,
Peculiar conditions around 23 UT with a rather weak signal. S-meter around S6-S7. Normally in the evenings it is a steady S9 +20 dB. MUF 200 km was around 3.6 MHz. Good during the night and no problems before sunrise.
Terje
mitajohn
13-03-2006, 07:39
Hi all,
Here is the last night's result in 3 parts. Here are the parts 1 & 3. Not a very good result, as it was usual, due to bad conditions.
John.
Hi all,
I split the log in three. The conditions from W-tal were not good around 2215 UT with a diffuse Carrier Impulse Response and a somewhat weak signal. But on the other hand there were no problems before local sunrise.
Here are my parts 1 and 3:
Terje
Hi all,
quite good last night from Wertachtal (I think there was no transmission scheduled from Sines last night)
Simone
mitajohn
14-03-2006, 14:52
Hi all,
Here is the last night's result in 2 parts. Here is part 1. Much better conditions last night, a nearly excellent result and a higher SNR.
John.
Hi,
I suppose it was W-tal last night. At least when you see the log, it must have been. Very strong signal at 20 UT with S9 +30 dB, then suddenly at 22 UT the conditions deteriorated rapidly. At 2220 UT the S-meter was down to S7-S8. The rest was unattended. Noticed a break at 0638 UT, then the signal came back, but with lower SNR. During the night the reception was bad.
Terje
feinstei
16-03-2006, 06:00
Superb reception of 3995 here in Detroit, MI USA on 16-March-2006 from 0545 to 0600 UTC. No dropouts at all and I was able to enjoy all of the Euro-trash music with excellent fidelity. SN/R varied between 10.5 and 11.8 on the DRM Software Radio's meter. Perhaps the 90 meter band IS practical for use in broadcasting to North America after all!
Receiver: TenTec RX-350 Antenna: Butternut 80/40 metre vertical
Hi all,
Again, I split the log into three overlapping parts. The signal was quite strong with a S9 +20 dB at 2205 UTC. The conditions from Wertachtal were not good around 2245 UT with a bad Carrier Impulse Response and a signal about S9. It was a striking difference both in SNR and signal strength just at switchover at 2300 UTC, and the S-meter rose to S9 +15 dB. And later on there were the usual problems before local sunrise.
Here are my logs, parts 1 and 3:
Terje
mitajohn
16-03-2006, 15:24
Hi all,
Here's the last night's result. The SNR is much higher from Sines than Wertachtal and the sunrise problem is more exaggerated now.
John.
Hi,
Last night was - PERFECT! And with 14.56 kbps right through. But still telephone quality sound.
Terje
Hi all,
good results last night
Simone
mitajohn
17-03-2006, 14:32
Hi all,
Bad results last night.
John.
A bad result if I see, that the very strong signal strength results only in a low and instable SNR.
mitajohn
18-03-2006, 07:30
Hi all,
Very good results last night. At TX, see the graph, the transmission stopped and in a few seconds started at 11.4 kbps then stopped again and started at 14.5 kbps.
During transmission from Sines, which delayed by about 30 mins, the SNR improved significantly, up to the max of 32.7 dB. Then the TX from Wertachtal started again with a lower SNR, which it is very clear in the graph, and continued with the usual sunrise problems until the signal lost.
The sound was not bad but it did not exceed 5 kHz.
John.
Hi,
Interesting results last night. Very bad conditions from Germany about 200 km from here, but perfect conditions from Portugal. Cheers!
Terje
mitajohn
19-03-2006, 08:16
Hi all,
Not good results last night. During <Part1> and <Part2> there were good results the rest was bad, low signal with fading and of course with low SNR. At <???> something must happened for which I cannot tell, since the log was unattended at that time. There were also two TX breaks, I presume, due to transmitter problem. The impulse response was also not good , see the pngs.
John.
mitajohn
20-03-2006, 07:11
Hi all,
Very good results last night, especially during the transmission from Sines where SNR reached 34.4 dB max.
John.
mitajohn
22-03-2006, 06:51
Hi all,
Very good results again last night.
John.
Hi,
Sorry, can't agree with John, but I must be in the skip zone from W-tal. Noticed a lot of splatter at 2025 UTC from 3985 kHz. At 22 UTC the signal was down and the channel impulse response looked like a sad heap of leaves. At 2310 UTC the situation was the same. This morning there was a strong signal and perfect conditions.
Terje
mitajohn
22-03-2006, 07:05
Hi Terje,
The sun helps your area but not mine....my area prefers the dark...
John.
FritzWue
22-03-2006, 16:40
Driving from 48712 Gescher to 48147 Muenster:
A complete loss last night. Wertachtal came only back to life with the sun
mitajohn
23-03-2006, 08:17
Hi all,
Good to very good results last night for Wertachtal. The period from 1700 to 1830 ~1900 is not of good reception one with low SNR. This is more or less common here and I have noticed it many times before. When Sines took over there was a slight increase to the SNR which until the end reached 33.8 dB, an excellent result. When Wertachtal took over again the SNR dropped the result was rather good until the sunrise, which caused the usual morning reception problems. Look at the two logs.
John.
Hi,
If there was a stronger word for "worse", I would have been able to use it here. A complete loss here too.
Terje
FritzWue
24-03-2006, 07:28
If there was a stronger word for "worse", I would have been able to use it here.
...worst ? :D ;)
mitajohn
24-03-2006, 07:54
Hi all,
Here is the result of last night's reception. Not "worse" but not good. There were some big periods of good reception but some others of bad to very bad one. See for yourself.
John.
Hi all,
and here is my result from last night. Similar to Digger's and opposite to John's result ;-)
73, Daniel
Nothing before 5:20 UTC. I still wonder what happens at 6:30UTC. I think that there is changed something more than only Bitrate. SNR looks TX limited after that switch.
mitajohn
24-03-2006, 21:17
Hi Carsten and all,
I think that there is changed something more than only Bitrate. SNR looks TX limited after that switch.
Take a look at this:
http://www.drmrx.org/forum/showthread.php?t=585&page=28
I think is the same situation we had observed.
John.
mitajohn
25-03-2006, 07:32
Hi all,
Here is last the night's report. Totally a mess, no comments! see for yourself the two pngs.
John.
mitajohn
27-03-2006, 07:48
Hi all,
A bit better last night (unattended).
John.
Hi,
Quite good last evening from W-tal, then the usual problems 90 minutes before local Sunrise (at 0516 UTC). Something changes at the break around 06 UTC - the transmitter? The antenna?
Terje
mitajohn
29-03-2006, 07:24
Hi all,
A very good result last night until the SNR sudden drop, about 10 dB.
John.
Hi,
Well... nothing. "Worstest" :D so far....
Terje
Hi,
Just in time for Sines, tonight with 17,26 kbps +SBR and P-Stereo. Except for one hour the reception was very good. The end of Sines was also the end of the reception, at least until 0458 UTC, when something happened. Suddenly, within 4 minutes the reception was back to perfect! DW informed me about a change of transmitters at 0630 UTC (which I could not register yesterday :confused: or today), when they switch from 200 kW to 40 kW. Or was this the case only during the Winter? But then you still wonder what happens just before 05 UTC :confused: or did the conditions improve almost instantly?
This morning the configuration still was 17,26 kbps +SBR and P-Stereo, but with saturated modulation. Very muffled modulation...
Terje
PS: I posted this on both threads.
mitajohn
30-03-2006, 11:36
Hi all,
A much better result last night than yesterday's, I cannot comment about the sound output because the log was unattended.
John.
mitajohn
01-04-2006, 07:10
Hi all,
Bad results last night.
John.
PS: I believe the season of good reception have passed for good...
Hi,
Hm, quite good results last night...
Terje
mitajohn
02-04-2006, 14:04
Hi all,
A good result for only 2.5 hours.
John.
mitajohn
03-04-2006, 07:41
Hi all,
Much better result last night.
John.
FritzWue
03-04-2006, 14:04
Driving from 48712 Gescher to 48147 Münster and back to the autobahn.
A big dropout when parking in front of a noisy building and then I had to leave because DW again switched back to this dreadful telefone quality.
I just can't stand it ! :mad:
mitajohn
04-04-2006, 07:52
Hi all,
Here's the last night's result.
John.
mitajohn
05-04-2006, 08:29
Hi all,
Here's the last night's result. No comments.
John.
FritzWue
11-04-2006, 17:48
Driving from 48712 Gescher to 48147 Muenster via B525, A43, A1:
FritzWue
12-04-2006, 16:59
Driving from 48712 Gescher to 48147 Muenster via B525, A43, A1.
Dropouts: 1. TX, 2. fuel station, 3. noisy factory
mitajohn
13-04-2006, 07:34
Hi all,
Mixed results last night.
John.
Hi,
Quite good last night here.
Terje
mitajohn
14-04-2006, 07:07
Hi all,
The same picture...
John.
afterwards more and more dropouts
during the night.
I can't remember I ever had such a bad reception of any 75m-frq. in the past 25 or so years with AM, be it BBC German on 3955 (ex 3952.5), SRI on 3985 or DW on 3995 in my location in SW Germany.
Sudden increase in SNR at 05:45 UT:confused: , mode change at 06:00 from 16QAM to 64QAM of MSC.
Meanwhile good and stable results from Sines (22:00 - 03:00) in 64QAM and high quality audio.
for more than 9 hours:( :(
mitajohn
17-04-2006, 06:27
Hi all,
A much better result last night. The superiority of Sines on Wertachtal is obvious.
John.
Hi,
Although W-tal was very strong in the beginning of the log that obviously did not last during the whole night. Sines is much better and provides better SNR.
Terje
Only a 24 minutes report but 100% audio.
Roland
Here is another overnight log. This time I made use of my ferrite antenna which, although it's upper frequency limit is specified as 2000 kHz seems to work in the tropical bands quite satisfactory as well.
Mysterious: signal strenght from W-tal did not degrade continuously in the late evening, but in significant steps at the full hour. So I guess they shifted something in Bavaria (reduced power?).
Again there was the enormous drop of 18 dB in SNR when Sines went off air again at 3 o'clock.
It would be really interesting to get more detailed background information than the wording "part time from Sines 90/40" in DW's official schedule
mitajohn
19-04-2006, 06:37
Hi all,
Not a good result last night. Wertachtal was a bit better than Sines.
John.
FritzWue
19-04-2006, 14:12
Driving from 48712 Gescher to Duesseldorf via A31, A2, A3, A46.
Good reception, only minor problems with high voltage lines.
mitajohn
20-04-2006, 07:59
Hi all,
A bit better last night. (The second png is a detailed portion of the first one)
John.
in comparison to what I got recently
At around 05:00 there were multiple transmission breaks with unmodulated and AM-1kHz modulated carrier
pls. note that the date of the file is wrong, the record was made 19/20 Apr. 2006
mitajohn
21-04-2006, 07:15
Hi all,
Bad results last night.
John.
from 05:00 until 05:30 (see screenshot), no audio decodable with dream 1.6.1
Reason: 5kHz-Mode used (???)
No SDC, no MSC
Rest of the time quite good
for more than one hour after Sines shut down
stegewicht
23-04-2006, 20:42
Here´s a Reception-Report for 3995 kHz (Wertachtal).
Perfect Reception between 16.00-18.00 UTC.
tonight :( :( http://www.drmrx.org/forum/attachment.php?attachmentid=20424&stc=1&d=1145945515
mitajohn
04-05-2006, 08:53
Hi all,
The days of good results have passed for good.
John.
mitajohn
06-05-2006, 01:02
Hi all,
This log started promising and turn to be very good, as can be seen in the attached file. At about 23H55 the decoding stopped and SNR dropped as well as the DRM spectrum appeared different in its two "half" portions. After that the decoding, until now, has not been recovered. I believe this was a TX problem, and the result is obvious in Waterfall/SPS capture (second file). I will continue the log and report the rest of the result tomorow.
John.
mitajohn
06-05-2006, 09:06
Hi all,
.....Well, as it can be seen the signal never recovered (see also the impulse response during that period, in the second file) except for the last period from 03H20 to 04H50 which gave a much better result until the sunrise problem. Take a look at the attached file.
John.
mitajohn
17-05-2006, 06:14
Hi all,
After 10 days from my last report, I got last night a rather good result.
John.
Hi all,
good results last night except a 30min period in the early morning
Simone
Long-term observations May 2 to 19
as ZIP-archive (http://www.intervalsignals.org/drm-observations)
Quite good last night, only a short period with low SNR at 0330, but no problem for decoding as in Carsten´s report.
Simone
Hi Carsten
I think that the transmission from Sines should last all night through. The propagation on the 75m band is not good for short/medium distances during the night, due the landwave path. This is a problem for DRM, because it produces strong intersymbol interference, noticable by the drop in SNR just when Sines closes at 3:00. Actually, we make a short interruption at the TX between 23:15 and 23:30 on all days, to test the SFN mode. The transmission from Sines lasts from 23:00 to 3:00 UTC (interrupted from 23:15 to 23:30).
The propagation on the 75m band is not good for short/medium distances during the night, due the landwave path. This is a problem for DRM, because it produces strong intersymbol interference, noticable by the drop in SNR just when Sines closes at 3:00
Two examples for this in the attachments
I think that the transmission from Sines should last all night through.
I think so too. See my report for last night for my location which is only at 61 kms distance from Wertachtal.
Roland
Hi Carlos,
seems the break form Sines can be seen in the log, quite good results during the night.
Simone
mitajohn
24-05-2006, 07:26
Hi all,
Here is the last night's result.
John.
Hi Carlos,
here is a complete log from last night. It looks like Wertachtal was switched off when Sines starts at 22 UTC, because the signal from Wertachtal is usually much stronger than from Sines, but often with lower a SNR. It looks like Wertachtal was switched on again between 23 and 23:45 UTC. Signal was stronger in that period but decoding failed. Sines only from 23:46 until 3 UTC. But really strange is the very stable and constant signal strength from Sines. Or is it an SFN effect?
Hi Carsten, Carlos,
Hi Carlos,
It looks like Wertachtal was switched on again between 23 and 23:45 UTC. Signal was stronger in that period but decoding failed.
I also noticed this period with no audio decoding despite good SNR in the logfile during the past nights, the problem is that MER is restricted to only 14 dB at this time, see attachment. It also seems DW are switching between different configurations and equipment.
Simone
Quite bad with strong signal at the start of my logging period.
Roland
mitajohn
26-05-2006, 07:51
Hi all,
A little better last night. I cannot tell about the break downs since the log was unattended.
John.
Hi all,
results from last night. Quite good except between 23 and 23:45 UTC
FritzWue
28-05-2006, 21:45
Good results even with bad impulse response due to high fieldstrength.
Graphs showing response at start and end of log.
FritzWue
29-05-2006, 08:00
Very good in the morning:
mitajohn
30-05-2006, 06:01
Hi all,
Here is the last night's result.
John.
mitajohn
04-06-2006, 20:29
Hi all,
After 50 mins of log no any more decoding.
John.
FritzWue
07-06-2006, 22:39
Driving from Osnabrueck to 48712 Gescher via A30, A31:
Good results last night.
Simone
FritzWue
11-06-2006, 21:27
DREAM is losing sync when the first impulse splits up and the amplitude is fading:
mitajohn
17-06-2006, 21:13
Hi all,
A rather good result.
John.
mitajohn
19-06-2006, 06:59
Hi all,
Here is an overnight unattended log. Not a good one.
John.
Great results last night, dropouts due to configuration changes.
Simone
Indeed, it was a perfect night, last night.
mitajohn
21-06-2006, 06:40
Hi all,
Good results last night.
John.
Good results last night.
Simone
mitajohn
25-06-2006, 08:10
Hi all,
A rather good result last night until the morning problems.
John.
mitajohn
26-06-2006, 06:25
Hi all,
Like the yesterday's result.
John.
Quite good last night. At the beginning, there were some thunderstorms in Frankfurt. MF was not possible in that time, but on 4 MHZ with that very strong signal from Wertachtal it wasn't a big problem.
Hi,
A log from last night. Stable conditions with, I would say, practically 100% audio.
Terje
mitajohn
28-06-2006, 21:06
Hi all,
A stable and strong signal until decoding stopped, although the signal was quite strong at that time.
John.
mitajohn
29-06-2006, 06:26
Hi all,
After my previous log, I logged again, at 22H40, on this frequency and got the attached overnight result.
John.
mitajohn
29-06-2006, 20:05
Hi all,
Almost like yesterday. A stable and strong signal until decoding stopped, although the signal was quite strong.
John.
mitajohn
30-06-2006, 07:00
Hi all,
The transmission from Sines is usually much better than that from Wert.
John.
mitajohn
02-07-2006, 07:22
Hi all,
A good result until 03H00.
John.
Best after midnight. And no problems in the morning before sunrise.
Terje
mitajohn
04-07-2006, 06:13
Hi all,
A very good result until 03H00, then problems started...
John.
mitajohn
09-07-2006, 09:23
Hi all,
A very good to nearly excellent result until 03H20.
John.
mitajohn
10-07-2006, 06:53
Hi all,
A nearly excellent result until 03H00.
John.
mitajohn
11-07-2006, 06:44
Hi all,
A nearly excellent result, like the yesterday's one, but extended until 03H50.
John.
mitajohn
15-07-2006, 07:11
Hi all,
A very good result from 00H00 to 04H00.
John.
Hi Mitajohn
Tks for all your reports. Our 4MHz antenna is beamed to Europe, but due the about 45º lobule, working fine for your location. We waiting for better propagation conditions (Around Setember the 11 years cycle starting go up) to improve the reception conditions.
No signal from 2200- 0000?
Simone
No idea what happens at 2200- 0000.
Simone
mitajohn
20-07-2006, 06:33
Hi all,
A good to very good result from 23H00 to 03H20.
John,
Again nothing form 22000- 0000, as every second night now.
Simone
Hi all
Since the last 2 weeks Sines are on air in 3995KHz between 22:00 and 24:00 only in the week days nº 2, 4, 6. And in the days nº 1, 3, 5, 7, are in 5925KHz starting at 22:00 and stop at 24:00. From 00:00 to 02:59 as normaly, the transmissions are daily on 3995KHz. About the 22:00/24:00 transmission from Wertachtal, I dont know wath hapen.
73 CT4RK
FritzWue
21-07-2006, 13:32
From near Bocholt to Kleve:
FritzWue
27-07-2006, 19:04
From near Hanau to near Olpe on the A45:
FritzWue
27-07-2006, 19:12
From near Wetzlar to Gescher via A45, A2, A31:
mitajohn
01-08-2006, 07:34
Hi all,
A very good result from 23H50 to 04H10 last night.
John.
mitajohn
04-08-2006, 07:07
Hi all,
A very good result for 4 hours.
John.
mitajohn
05-08-2006, 06:50
Hi all,
A good to very good result in this overnight log.
John.
mitajohn
08-08-2006, 06:57
Hi all,
A very good result in this overnight log.
John.
mitajohn
09-08-2006, 06:57
Hi all,
A very good result last night.
John.
FritzWue
09-08-2006, 18:47
Bottrop to Gescher via A31:
I decided to check out 3995 kHz just for curiosity:) .
The Wertachtal (?) transmission had to cope with high summer static and adjacent SSB channels.
-Zyg-
mitajohn
11-08-2006, 07:23
Hi all,
A nearly excellent result until 03H00, last night.
John.
mitajohn
12-08-2006, 06:38
Hi all,
Here is the last night's log.
John.
FritzWue
13-08-2006, 21:14
Excellent result although the impulse shape looked terrible as always.
mitajohn
16-08-2006, 07:16
Hi all,
Here it is the last night's log.
John.
mitajohn
20-08-2006, 20:03
Hi all,
Except for one dropout the rest was a very good result.
John.
FritzWue
21-08-2006, 22:02
Very good result:
mitajohn
24-08-2006, 06:17
Hi all,
Here is an overnight unattended log.
John.
mitajohn
25-08-2006, 20:06
Hi all,
A bit strange result tonight, periods of very good and bad results.
John.
mitajohn
26-08-2006, 07:18
Hi all,
Very good results in this overnight log.
John.
mitajohn
27-08-2006, 07:30
Hi all,
A very good to nearly excellent result last night.
John.
mitajohn
29-08-2006, 19:58
Hi all,
A nearly perfect result for 80 mins, then, although the signal remained strong, decoding problems started.
John.
mitajohn
30-08-2006, 07:27
Hi all,
A very good to nearly excellent result for 5 hours, last night.
John.
FritzWue
01-09-2006, 09:17
Very good during the last hour:
mitajohn
01-09-2006, 19:44
Hi all,
Nearly excellent results until 17H55, then signal degraded gradually.
John.
mitajohn
02-09-2006, 07:17
Hi all,
Here is an overnight unattended log, not a good one.
John.
Hi
Here is the last hour from this morning. Very strong signal.
Terje
Hi,
An overnight log, which was a bit disappointing. Two long periods without decoded audio :confused: - especially with an S-meter reading of S9 +55 dB at 2130 UTC. The 10 dB RF Attenuator was active during the logging. Could the signal have dropped extremely much at times during the night?
Terje
mitajohn
05-09-2006, 05:58
Hi all,
Another not good overnight unattended log.
John.
mitajohn
05-09-2006, 19:39
Hi all,
This transmission is one of the strongest received here. To day the signal was 50 to 60 dBuV very stable. After about 2 hours of nearly excellent results and although the signal strength was the same, decoding problems started and I stopped the log. See the attached file.
John.
Excellent reception this morning.
Roland
mitajohn
06-09-2006, 22:19
Hi all,
Excellent results with the small loop, until the known decoding problems started and I switched to 5980.
John.
mitajohn
10-09-2006, 09:37
Hi all,
Very good to nearly excellent results last night until 05H00.
John.
mitajohn
10-09-2006, 22:08
Hi all,
Good results. The decoding seems to be on its threshold.
John.
FritzWue
12-09-2006, 21:41
Unattended log.
They had obviously switched bitrate at 20:00Z and were playing classical music at 14.56kbps when I came back. Some people will never learn. :(
mitajohn
13-09-2006, 20:03
Hi all,
A bad period from 1800 to 1845.
John.
mitajohn
14-09-2006, 08:42
Hi all,
Good results in this overnight log.
John.
FritzWue
14-09-2006, 18:56
Driving from Muenster North to Gescher via A1, A43, B525:
mitajohn
15-09-2006, 07:09
Hi all,
There two logs, one from 1647 to 1859 and an overnight one.
John.
I happened to tune to the DW 3995 kHz signal, it was there, and therefore I started the log. The S meter was showing 5 - 9+10dB.
Interference from Amateur sideband transmissions and an RTTY station reduced the SNR. However, there were several decoded audio bursts. This bodes well for the upcoming winter season! :)
-Zyg-
mitajohn
16-09-2006, 08:12
HI all,
Here is an overnight unattended log. There were some periods of bad results, although the SNR reached a max of 33.7 dB.
John
The overnight log for 3995 kHz. Down from yesterday. Looking forward to better reception coming in the winter months.
-Zyg-
mitajohn
17-09-2006, 08:10
Hi all,
Here is an overnight unattended log, not a good one.
John
Hi,
An overnight log. There was absolutely nothing (here) between 2159 - 0000 UTC. Again, a period of low SNR and no decoded audio from 0320 - 0500 UTC. The rest was fairly good. The SNR at the beginning was not very high; it was higher in the morning. In both cases the RF input signal to the receiver was about +66 dBuV and free from Fading.
Terje
The overnight DW 3995 kHz reception log.
Interestingly the received signal as shown by the S-meter was strong, at times as high as S 9+25db. However the SNR did not follow. I checked the Impulse Response Graph, and instead of one pulse it showed several in a row!
So the problem to reception here appears to be strong multipath, even over the long distance to the SE USA? :confused:
-Zyg-
mitajohn
19-09-2006, 07:06
Hi all,
Here is an overnight unattended log, after a night storm.
John
The overnight 3995 kHz log. Conditions looking better. :)
At approximately 02:58 the carrier stopped, and at 03:00 it resumed but at at lower signal strength (S meter showing about 15dB down) and with a different signal delay pattern. Indicating either a transmitter location change (Sines?) or antenna change or both.
I have also included a picture of the Channel Impulse Response from earlier in the evening.
It was a stormy night here too.
-Zyg-
Good results last night.
Simone
mitajohn
21-09-2006, 07:05
Hi all,
Here are two logs: one between 2007-2057 and an overnight unattended log. Look at the significant decrease of the SNR figure after 0300.
John.
mitajohn
22-09-2006, 07:55
Hi all,
A 2 hours log after a rain storm.
John.
The overnight 3995 kHz log. Poor. :mad: Yesterday was better (but not logged due to computer problems).
Hi all
From tomorrow, 23-09-2006, Sines will be on air every day, on 3995KHz, from 22:00 UTC, and up to 6:00 UTC. Due this new schedule on this QRG, the 5925KHz will be finish. As habitually our beam is pointed to 40º. C/ N Europe.
mitajohn
23-09-2006, 07:51
Hi all,
Here are two logs: one between 2007-2100 and an overnight unattended log.
John.
The overnight 3995 kHz reception. I accidently hit the Esc key and knocked the program out, :eek: and had to restart the logging, so that's why there are two logs. :o
Considering that the transmitters main beam is directed 109° away from my receive antenna, I wonder what the ERP is in my direction?
I suppose that the title should read Sines and not Wertachtal 3995 Khz now.
-Zyg-
Hi Mitajohn
In your direction the antenna gain is more or less -12dBd. With 80Kw in the transmitter, the PAR beamed to USA will be about 5kW. This information is not a matematical calculation, but later Ican tell you the exact PAR.
Here is the overnight 3995 kHz reception report. I've noticed that the ID screen also shows news and commercial messages (see attached jpeg).
Carlos thank you for the information. The 5kW was beginning to do quite well at the end of the transmission period!
-Zyg-
I've noticed that the ID screen also shows news and commercial messages (see attached jpeg).
DW does not broadcast any commercial messages. What can be seen on your screenshot is a news flash that seems to have been improperly decoded, it looks like two news flashes were merged into a single new text which doesn't make sense.
BTW: I have changed the thread title from Wertachtal to Wertachtal / Sines.
Roland
DW does not broadcast any commercial messages.
Of course; I meant news and announcements.
-Zyg-
Bad results on mobile reception last night during the time Sines was on air.
@ Carlos: Is this a SFN Sines & Wertachtal from 22:00 or Sines only transmitting?
Simone
Better results early this morning.
Simone
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