DW Sines on 3995 KHz

[CT4RK]

Hi all
From today, at Monday, Wednesday and friday, Sines will be on 3995 KHz, from 23:00 to 03:55 UTC. During this test transmissions from Sines, Wertachtal will be off.

[simone]

Hi Carlos,
an extremely strong signal before 2300, good results then with a weaker signal during the transmission from Sines, later the usual problem in the early morning from Wertachtal.
Simone

[carknue]

Hi Carlos,

Very good results last night. When Sines took over, the SNR raised 4dB and more. And it is good to have 17.2 kbps p-stereo the whole night. No problems whith this bitrate. After Wertachtal took over the signal got lost for 1 hour in the early morning. Looks like a good solution for the 3995, at least for last night.

Ups, now with corrected max. SNR :D

[mitajohn]

Hi all,

Here's the unattended last night's log. It is obvious that the SNR from Sines is a bit higher.

John.

[Digger]

Hi,

Here is last night's 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

[carknue]

Hmm, they are back to telephony quality:( Quite high SNR in the night. There was no brak at 23:00, so I'm not quite sure if there was a take over from Sines this night, but SNR would say that.

[mitajohn]

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 second part is here. The SNR got higher much later than usual. See the png.

John.

[Digger]

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 is the report for Sines.

Terje

[sveron]

Hello to all,

This night confirmed my first attempt of wednesday to catch Sines : with the long wire of the DWT, reception here is really bad. Even while letting the laptop running on batteries only, the SNR is not good and stable enough to provide a decent listening. I will try hopefully next week with new antennas.

1st screen capture shows friday night log only
2nd screen capture shows comparison with thursday night

73, de Stephane

[simone]

Hi all,
seems there is more fading on the signal from Sines, also signal strength is lower, good decoding but low bitrate last night
Simone

[mitajohn]

Hi all,

Here is the part 2. Better result than in part 1 & 3 and higher SNR.

John.

[Digger]

Hi all,

Here is my Part 2. Overall good reception. I did not see any significant changes between the two sites.

Terje

[mitajohn]

Hi all,

Here is the part 2. Except for the usual reception problems, due to the sunrise, the rest was a nearly excellent result and with a much higher SNR than in part 1, which reached up to 32.5 dB max.

According to the DW, the transmission was scheduled from 2300 to 0355, but, since the log was unattended, I cannot tell when it was stopped from Sines and continued from Wertachtal, there is no trace for the switching (was it so perfect?) If this is wrong please correct me. Thanks.

John.

[simone]

Hi all,
good results last night, signal from Sines is always weaker than from Wertachtal
Simone

[carknue]

Hi all,

the signal strength from Sines seems to be a bit weaker, but also more stable and still very strong. And the SNR is about 4 dB higher than from Wertachtal. Sines shoulb be able to change to 17.4 kbps. This telephone quality is not nice.

[Digger]

Hi all,

I split the log into three overlapping parts, two for Wertachtal and the middle for Sines. 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. Stable conditions during the transmission and at 0355 UTC the switchover to Germany instantly resulted in much worse reception.

Here is my log, part 2 and a screen shot of the SNR and Decoded Audio just at the swichover at 23 UTC:


Terje

[mitajohn]

Hi all,

Here's the last night's result. The SNR is much higher from Sines.

John.

[simone]

Hi all,
good results from Sines last night.
Simone

[carknue]

I think, that the graph speaks for its self. Sines did a brilliant job last night. Please give us Sines when it is dark and Wertachtal at daytime. And stop this terrible telephone quality on this frequency.

[CT4RK]

Hi Carsten

We canot change anything on this transmission, because all the parameters are made in Bonn, and send us via satellite in MDI format. So all changes in BR should be made in Bonn and not in Sines.

[Digger]

Hi,

Interesting results last night. Very bad conditions from Germany about 200 km from here, but perfect conditions from Portugal. Cheers!

Terje

[carknue]

Hi Carlos and all,

again a brilliant job from Sines after a delayed start last night. No reception was possible from Wertachtal after 21:30UTC. But Sines had a very high average SNR last night.

[simone]

Hi Carlos,
strange results from 2300- 2323 ( a delayed start?), quite good results from Sines then
Simone

[simone]

Hi all,
good results from Sines, now also transmitting on Sundays?
Simone

[CT4RK]

Hi Simone

TKS for the report. Yes. We are now also transmitting Sunday. In accordance with new schedule this 3995 KHz transmissions will finish from Sines, in 26-03....:confused:

[Digger]

Hi Carlos and all,

Why finish? :confused: That is bad news... The reception from Sines is perfect here! See the enclosed log from last night.

Terje

[carknue]

Hi Carlos, Hi all,

the difference between Wertachtal and Sines is a bit more extreme in my location. SNR jumps from 13 to 30 dB:eek:

I agree with Terje. Sines works perfect on this frequency and should continue. Wertachtal is just a waste of energy most of the time. But I guess that there is still a lack of transmitters or antennas in Sines...

But how is the performance of Sines on this frequency in Portugal/Spain?

[simone]

Hi Carlos, all,
sorry to hear you are not going to continue with this transmission from Sines, seems to be more reliable here than Wertachtal. Last night again perfect results from Sines. Btw what about reception of Wertachtal in Portugal?
Simone

[CT4RK]

Hi all
Now the good news!...We just received a new schedule from DW. Transmissions on 3995 will continue from Sines, but with one hour more. This transmission will be from 22:00 to 2:59.:)

[CT4RK]

Hi Simone and Carsten

Wertachtal in Portugal have a strong signal (up to 60 dBuV)and a SNR about20/25 dBs of course, but like in Germany only after the sunset, when the F1 and F2 layer disappear, and the propagation open for Europe on this QRG.

[CT4RK]

Simone and Carsten and all
(continuation of the previous message :p )

Wertachtal is very useful to listen DRM in 3995 KHz in Portugal and Spain. During the time, when I`m working in the station between 16:00 to 24:00 I normally tune Wertachtal in the monitor station receiver, which is a DT700 from Fraunhofer, and the reception is usually very good, with absolute no dropouts, very stable with low QSB, in spite of the strong field strenght in the station. The DT700 have a very rugged frontend and working fine in hight RF density environments .

[Digger]

Hi Carlos and all,

Well, the diagram speaks for itself. At least in Northern Switzerland the Sines transmission is a winner. At 2255 UTC W-tal brought S6 and no decoded audio, at switchover 2300 UTC the meter rose to S9 +15 dB and the SNR jumped up 15 dB. The rest was unattended. At 0625 UTC the signal from Germany was back to S9 +15 dB. In addition to the log I uploaded a picture of the SNR from approx. 2310 UTC.

Terje

[carknue]

Hi Carlos and all,

it is really amazing, the SNR jumps more than 20dB when Sines took over. The result is quite digitally. Wertachtal 0, Sines 1.

[simone]

Hi Carlos, all,
great results from Sines last night
Simone

[simone]

Hi all,
good results from Sines, some dropouts from Wertachtal before Sines started.
Simone

[sveron]

Hello to all,

Wertachtal is becoming bad each day after 2200 UT, but Sines here is even worse... each time I tried ! So I take it as a real result. Then it was not worth letting the computer logging all night long. SFN might be the best solution, or another 75m frequency to run Sines and Wertachtal in parrallel.

73, de Stephane

[carknue]

Even problems with Sines in the first hour last night, perfect in the morning.

[Digger]

Hi,

Sines is doing a good job, as usual.


Terje

[simone]

Hi all,
good results again last night from Sines, problems in the early morning from Wertachtal
Simone

[Andreas]

If I look only on the log I am not able to decide which Tx is on air or not.:confused: Seems I im a zone where it doesn't really matter. (Hower there is an audible difference...)

I experienced the same last summer with DW's tests of SFN on 7265 kHz.

3995 kHz is a BIG MYSTERY!!!!

[Digger]

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.

[simone]

Hi all,
perfect results from Sines last night.
Simone

[Digger]

Hi all,

Very good result from Sines last night.


Terje

[Digger]

Hi all,

External DC supply to my receiver, some tuning and adjusting of the down converter and I got the highest SNR so far last night. 34,7 dB from Sines - great.


Terje

[Digger]

Hi,

Quite good last night, especially from Sines which is very stable and has a better SNR here.


Terje

[simone]

Hi all,
good results from both Tx sites last night, signal from Sines was weaker than from Wertachtal.
Simone

[Digger]

Hi,

Very good reception from Sines, but with the usual "before sunrise" problems later from W-tal.


Terje

[simone]

Hi all,
good results from Sines last night, also good results from Wertachtal after sunrise.
Simone

[CT4RK]

Hi all

From today, and all days, Sines will be test SFN mode with Wertachtal, at the normal schedule time.

73 from CT4RK :)

[Funkerberg]

report from 19.04. to 20.04.06

regards, Rainer

[DRM-OM]

http://www.drmrx.org/forum/attachment.php?attachmentid=20368&d=1145774759

[DRM-OM]

as yesterday during the night
http://www.drmrx.org/forum/attachment.php?attachmentid=20406&d=1145860495

[DRM-OM]

tonight, many dropouts/blackouts...

[simone]

Hi all,
pretty good results last night.
Simone

[simone]

Hi all,
great results last night, dropouts due to onfiguration changes
Simone

[simone]

Hi all,
all dropouts probably Tx related
Simone

[DRM-OM]

Long-term observations May 2 to 19
as ZIP-archive (http://www.intervalsignals.org/drm-observations)

[Sixten]

Hi all.

Small test of this freq. this evning. My 2x10m dipole for 40m give very staile signal from Sines.Log only 50min.

:)

[mitajohn]

Hi all,

A very good result except of the period between 2350 and 0055 were some decoding problems. Low SNR again from Sines, but a bit higher near the end of log.

Happy New Year !

[mitajohn]

Hi all,

Rather low signal, low SNR and thus the result was not so good.

[carknue]

Very good results last night. Only the first hour was a bit too weak. Much better results than from Wertachtal.

[mitajohn]

Hi all,

Low signal, low SNR and the result was not so good.

[mitajohn]

Hi all,

Alike yesterday but a bit higher SNR.

[Digger]

A log for 64 minutes until close-down. I am not sure what caused the dip just before the end.

[mitajohn]

Hi all,

Bad results last night and very low SNR. The results got a bit better after 0400.

[carknue]

Unfortunately I had to stop this log, because there was a problem with FST logging:eek:

After a too weak first hour, perfect results.

[mitajohn]

Hi all,

A much better result than my last one.

[carknue]

A perfect second part from last night, even until 8 UTC.

[Andreas]

..and here is my humble contribution.

Apparently Sines doesn't work at my QTH during daytime. So there is a very weak start and a longer "warming up" phase in the evening, followed by good results during the whole night.

[mitajohn]

Hi all,

A nearly excellent result last night until 0700 when signal disappeared.

[carknue]

Almost perfect results last night again.

[AF4MP]

The overnight 3995kHz reception report (unattended).

-Zyg-

[mitajohn]

Hi all,

A nearly perfect result for 60 mins.

[mitajohn]

Hi all,

A nearly perfect result from 2022 to 0700.

[df9rb]

Hi all,

nearly perfect

Bernd, DF9RB

[mitajohn]

Hi all,

Several problems until 2150.

[simone]

Perfect during the night.
Simone

[mitajohn]

Hi all,

Lower signal last night and thus some decoding problems and lower SNR, but decoding extended after 0700.

[mitajohn]

Hi all,

Low signal again last night and some minor decoding problems as well as lower SNR but, overall, a very good result.

[mitajohn]

Hi all,

Low signal again last night and low SNR but a nearly perfect result.

[mitajohn]

Hi all,

Not so good like the yesterday's one.

[df9rb]

Hello,

Band not open at beginning, OK until the transmission stoped.

Bernd, DF9RB

[Digger]

An unattended overnight log until close-down.
Exceptionally good last night. No "morning sickness". :)

[mitajohn]

Hi all,

A ralatively low signal last night but higher SNR and a nearly perfect result.

[carknue]

Perfect last night.

[Digger]

Quite good, almost perfect all through the night. Interesting that the signal was a bit unstable from 0545 - 0610 UTC.

[mitajohn]

Hi all,

Here is an overnight (as always) unattended log. A bit problematic reception.

[Digger]

Last night's log was very good. Almost perfect.

[mitajohn]

Hi all,

Here is another overnight unattended log. A very good to nearly excellent result up to 0730.

[Digger]

Except for some audio decoding problems around local midnight, the reception was very good all through the night.

[mitajohn]

Hi all,

Here is another overnight unattended log. A very good overall result except of several problems from 0030 to 0230.

[simone]

Perfect results last night.
Simone

[mitajohn]

Hi all,

Nearly perfect results last night. A jump of the SNR noticed between 0020 and 0520.

[simone]

Good results last night.
Simone

[mitajohn]

Hi all,

Nearly perfect results last night.

[df9rb]

Hello,

quite good - and the only receiveable DRM-station during this time of the day.
The one big interruption has been caused by a bad contact to the laptop.

Bernd, DF9RB

[Digger]

380 minutes of perfect reception. Only the mode changes made the decoded audio to show up as not 100%. I noticed at least three mode changes: At 1755 UTC I wrote down 11.64 kbps, after 18 UTC it changed to 14.56 kbps, and when I stopped the log just before 23 UTC it was 17.10 kbps and P-Stereo.

I uploaded the same log with a plot using the CVS file as source where you also can see the Doppler and Delay. Sometimes the influx of the Doppler is interesting to see the influence it has on the percentage of decoded audio.

[mitajohn]

Hi all,

As most of the time, an almost perfect result last night, in this overnight unattended log.

[Digger]

An afternoon / evening log. A bit shaky in the beginning despite a very strong signal, but soon after it became rather alomost excellent.

PS: A high Doppler ruins the reception. See the enclosed plot.

[mitajohn]

Hi all,

Nearly perfect results last night except of a sudden drop of SNR at 2134 which kept from audio decoding and ended at 2141 as you may see in the log file.

[Digger]

Perfect this evening.

The second log uses data retrieved from the DreamLongLog.csv file.

[AF4MP]

The overnight 3995kHz reception report (unattended).

-Zyg-

[mitajohn]

Hi all,

An almost perfect result last night up to 0700, in this overnight unattended log.

[Digger]

Two good logs, one from this morning and one from this evening.

In the evening there was one period with instability when the delay decreased while the Doppler rapidly increased.

[simone]

Excellent results last night.
Simone

[mitajohn]

Hi all,

Nearly excellent results last night up to about 0700.

[AF4MP]

The overnight reception report from the "back of the beam" (unattended). A lot of SSB adjacent channel interference earlier in the evening.

Although the graph does not show much audio, I had left the speaker on by mistake, and the decoded audio woke me up at 2:00AM local time!

-Zyg-

[simone]

Great results in the overnight log.
Simone

[AF4MP]

The overnight 3995kHz (unattended) reception report.

-Zyg-

[mitajohn]

Hi all,

A nearly perfect overnight result, last night.

[Digger]

Heavy interference from 5 kHz down in the very beginning, but then it was good throughout. I cannot explain the lower SNR around 1820 UTC.

[AF4MP]

The overnight 3995kHz (unattended) reception report from the back of the beam. Conditions appear to be getting better during the last part of the transmission...

-Zyg-

[mitajohn]

Hi all,

A perfect overnight result, last night.

[mitajohn]

Hi all,

Here is a typical (so far) overnight result.

[Digger]

A little more than 10 hours logging with very good result.

[mitajohn]

Hi all,

Another overnight unattended result.

[mitajohn]

Hi all,

Several deep dropouts between 2209 and 0109, transmission ended (?) at 0538.

[AF4MP]

The overnight 3995kHz reception report (unattended).

-Zyg-

[mitajohn]

Hi all,

Although the signal was rather stable at ~50dBuV the SNR most of the time was below 20 dB and the overall result was no good. It turns me back to the days of 2005...Tx problems ?

[mitajohn]

Hi all,

Worst than a typical one log.

[mitajohn]

Hi all,

Here is a semi-unattended ~12 hours log.

[mitajohn]

Hi all,

Here is another semi-unattended overnight log.

[AF4MP]

The overnight 3995kHz reception report.

Conditions have improved. The "back of the beam" signal strength was at 9+20dB. Earlier in the evening the tantalizingly short periods of decoded stereo audio were of very high quality.

I would think that listeners a little closer to the transmitter, certainly in the NE USA, would have had good reception over night.

-Zyg-

[Sixten]

Hi all.

Short log from 3995 only for test of my RX TS-930S. So her is 60min.

[Digger]

Half an hour until I switched to CVC in Chile.

[mitajohn]

HI all,

An almost perfect result until 0720 in this overnight log.

[carknue]

Perfect until the end.

[AF4MP]

The 3995kHz reception report for the back of the beam.

Audio starts decoding at about 15dB SNR.

Conditions getting better towards the end! :)

-Zyg-

[AF4MP]

The overnight 3995kHz reception report (unattended) of the back of the beam.

Not as good as last night.

-Zyg-

[mitajohn]

Hi all,

Here is an overnight unattended result.

[Digger]

A very good 10 hours plus overnight result.

[mitajohn]

Hi all,

Here is a not good overnight unattended result.

[simone]

Good results last night.
Simone

[mitajohn]

Hi all,

Alike my previous report but extended by one hour.

[mitajohn]

Hi all,

A bit better result last night.

[mitajohn]

Hi all,

Better result with lower SNR.

[mitajohn]

Hi all,

Here is another not good overnight unattended result.

[carknue]

A perfect hour this evening.

[mitajohn]

Hi all,

Here is another overnight partly unattended log with much better results.

[Digger]

A very good overnight log.

[mitajohn]

Hi all,

Here is another overnight partly unattended log using Elektor RX this time.

[simone]

Perfect during the night.
Simone

[mitajohn]

Hi all,

Here is an overnight partly unattended log with some decoding problems.

[mitajohn]

Hi all,

Here is an overnight partly unattended log with nearly perfect results, in two parts.

[mitajohn]

Hi all,

Here is the overnight partly unattended log.

[Digger]

Unattended from 2230 UTC until 0620 UTC.

[simone]

Perfect again during the night.
Simone

[carknue]

Perfect reception last night.

[mitajohn]

Hi all,

Here is the last night's log.

[simone]

Good results last night.
Simone

[carknue]

Great results last night.

I noticed, that DW and some other BCs broadcast now with SBR even at lower audio bitrates than 16 kbps. Formerly it was not possible to do SBR with lower bitrates than 16.5 kbps. That must have been changed in a recent encoder software update. I think that this is a good way to improve the quality at least for word only programme types.

[mitajohn]

Hi all,

Periods of good and bad results last night.

[mitajohn]

Hi all,

Except of the usual morning problems the rest was nearly excellent.

[mitajohn]

Hi all,

The last night's result is here.

[carknue]

Quite good in 14.5 kbps with SBR.

[mitajohn]

Hi all,

The last night's result is here.

[mitajohn]

Hi all,

The last night's results in two parts.

[mitajohn]

Hi all,

Problems between 23:00 and 02:00 the rest was nearly excellent.

[carknue]

A perfect reception. 14.5 kbps with SBR sounds quite good in the last hour!

[carknue]

Perfect reception last night. The signal strength at the beginning and the end looks quite interesting. Today I heard live the bitrate change at 7 UTC from 17kbps to 14.5kbps. It was hardly noticable, just a short repetition was noticable. Formerly each change caused a complete loss of synchronisation. And 14.5 kbps mono with SBR sound really good for this low bitrate, at least much better than AM.

So I see, that there are still a lot of improvements behind the scenes, what I find quite promissing.

[mitajohn]

Hi all,

The last night's result is attached. A higher SNR noticed between 02:00 and 04:55.

[mitajohn]

Hi all,

The last night's result is here.

[mitajohn]

Hi all,

Bad results last night.

[mitajohn]

Hi all,

Bad results, again.

[mitajohn]

Hi all,

A much-much better result last night. Some TX breaks noticed (except of the BR switching).

[mitajohn]

Hi all,

Problematic reception last night.

[mitajohn]

Hi all,

Only a few reception problems last night.

[ppfreitas]

Not the best this close to the transmitter. When the evening comes, the signal drops down and audio cannot be decoded. Gets better early in the morning.
Paulo Freitas

[mitajohn]

Hi all,

A much better result last night. The log started with relatively high SNR which slowly dropped down until the end of log early in the morning.

[Digger]

Quite good results here in the evening. I'll let the DW run during the night and change the logs tomorrow.

11-03: The overnight log is perfect. From 0715 UTC the signal got weaker which caused some interruptions.

[mitajohn]

Hi all,

Almost same results here.

[carknue]

Results from last night.

[mitajohn]

Hi all,

Here are the results from last night.

[simone]

Great results last night.
Simone

[mitajohn]

Hi all,

A nearly excellent result last night.

[mitajohn]

Hi all,

A problematic result last night.

[Sixten]

Hi all.

Last log today from 3995 , 78min. perfect signal from my 40m dipole.

[mitajohn]

Hi all,

A nearly excellent result last night until morning when the signal lost, as always happens.

[mitajohn]

Hi all,

A nearly excellent result last night, almost like the yesterday's one.

[mitajohn]

Hi all,

A nearly excellent result again last night but lower SNR.

[mitajohn]

Hi all,

The last night's results. I dont know the source of the problems until 22:00.

[mitajohn]

Hi all,

Here are the last night's results.

[carknue]

Perfect results.

[TobbeR]

Test with a new hardware, the Elad FDM77. Low SNR but good audio
Regards
TobbeR

[carknue]

Perfect reception last night.

[df9rb]

Hi,

ok after 17:30

Bernd, DF9RB

[mitajohn]

Hi all,

Not a good result last night.

[TobbeR]

Interesting to compare with mitajohns pgn, I had better reception during late night but not so good early in evening.
Regards
TobbeR

[Digger]

Very good last night here.

[mitajohn]

Hi all,

Problematic reception again last night.

[f1tay]

Reception at Paris.
Daniel

[mitajohn]

Hi all,

A much better result last night.

[mitajohn]

Hi all,

A perfect result last night. The propagation conditions has been improved.

[mitajohn]

Hi all,

A nearly perfect result last night.

[mitajohn]

Hi all,

Here's the last night's result.

[mitajohn]

Hi all,

A very good to nearly excellent result until strong co-channel QRM started and affected the decoding.

[Digger]

An unattended almost two hours log. Looks perfect.

[mitajohn]

Hi all,

A problematic result for about 3 hours and low SNR, although the signal was around 40 dBuV.

[TobbeR]

Hi all
The signal to north was much better as can be seen from my log.
Regards, TobbeR

[mitajohn]

Hi all,

A perfect result last night.

[mitajohn]

Hi all,

Problems until 23:30, then almost perfect.

[TobbeR]

Back to the DRB30, as you can see the wide front end has problems with interfering stations.
Regard

[mitajohn]

Hi all,

Mixed results last night.

[FritzWue]

Overnight log, 99.67% CDA:

[Digger]

An almost perfect 600 minutes up until the end of the transmission. :)

[mitajohn]

Hi all,

A much better result last night.

[mitajohn]

Hi all,

Curious results in this unattended log, many short dropouts. Around 01:00 the SNR jumped from 24 dB to 32 dB and then large SNR fluctuations started.

[mitajohn]

Hi all,

Here is the log of the last night's results.

[NT2W]

Very good reception overnight. It's been awhile since I've been on the forum (since before 3995 went to Sines). I'm guessing the change to Stereo happened at that time?

[TobbeR]

Nearly eight hours with 100 % audio. The short drop around 20.45 was me switching the passband filters off and on, wanted to see if that would make any difference.
TobbeR

[mitajohn]

Hi all,

Here is the log (unattended) of the last night's results.

[mitajohn]

Hi all,

A nearly perfect result until 05:00 and a very bumpy SNR.

[mitajohn]

HI all,

Here is an unattended log of last night's results. Periods of good and bad results.

[Ant-SWL]

Today I tested my PC ( 1.8 GHz Celeron, 256 Mb RAM, AC97 on Board)
with a lot of parallel running programms.
I´m not sure, maybe thats the reason why the change of bitrate looks so wide ?!
But no problem for Deutsche Welle :D

[carknue]

Perfect last night.

[f1tay]

Reception at Paris 16h30 at 19h.
Daniel

[f1tay]

Reception at Paris 19h12 at 20h38.
Daniel

[f1tay]

Reception at Paris 20h40 at 22h10.
Daniel

[carknue]

Perfect last night.

[carknue]

Once again perfect last night.

[carknue]

A perfect night.

[Digger]

Some problems around 2045 UTC.

[mitajohn]

Hi all,

A result for 3 hours. Some major problems around 20:35.

[Ant-SWL]

This unattended overnight Log was made with the Elektor-classic RX.
After 05:00 UTC the propagation are faded away.

[andimik]

Reception here in Austria.

[simone]

Bad results last night when mode D was being used :(
Simone

[Digger]

Completely agree with Simone. Purely digital: 1-0-1-0-1-0. Now you hear it, now you don't. :confused:

Actually, I forgot to switch off the computer last night, so here is the sad result: At least in the morning with Mode D and S9 +20 on the meter (about +50 dBuV) there was practically no decoding. Only the segments with Mode B, probably 2032-2100, 2300-0000 and 0200-0300 were perfect.

[andimik]

Same problem. No audio possible when Mode D was used.

They even tested Prot. Level 2.

[andimik]

This night they tested Mode D again, but Prot. Level 0 (= 9,14 kBit). Terrible sound.

Some minutes later Mode B with good results.

Why not using 20 kHz bandwidth?

[mitajohn]

Hi all,

Here is an unattended log. 95.9% CDA for about 7 hours.

[simone]

Good results during the night, problems from 0445, seems there were no mode changes last night.
Simone

[mitajohn]

Hi all,

Here is an unattended log. 98.7% CDA, a very good result last night.

[andimik]

Long but good log from last night (not that night).

[simone]

Good results last night, problems in the last hour this morning.
Simone

[andimik]

Good at the beginning ...

[mitajohn]

Hi all,

Low SNR and BR but perfect decoding.

[simone]

Perfect results during the night, some problems in the early morning.
Simone

[mitajohn]

Hi all,

After 23:00 the result turned to perfect.

[Digger]

Wow! Just before 05 UTC when I entered the room I thought my PC was breaking down! A shearing noise, which luckily came from the loudspeakers - TERRIBLE. But the modulation became normal after the switch from 14.56 kbps to 17.10 kbps. :confused:

Otherwise very fine reception over almost 10 hours.

[deltaar]

Hi.

Here is a screenshot of a DW reception made in Portugal, 220 km away from Sines.

32658

And SNR:
32659

Receiver is Homebrew and antenna is a 4 m copper wire inside hause. :D

Cheers.

[mitajohn]

Hi all,

An almost excellent result for more than 7 1/2 hours last night.

[mitajohn]

Hi all,

Here is an overnight unattended log.

[Ant-SWL]

Unattended overnight log. Good result.
Last dip makes DReaM-Software after i switch to DW-Journaline Service.

[Ant-SWL]

Unattended overnight log. Again a good result. It seems conditions was not so good as last night.

[Ant-SWL]

Here part 3 ;)
Perfect again.

[andimik]

Overnight log. No signal before 20 UTC?

[simone]

Good results last night.
Simone

[mitajohn]

Hi all,

An unattended log. Very good to nearly excellent results.

[andimik]

Overnight log.

[mitajohn]

Hi all,

An unattended log. A nearly perfect result.