BR Ismaning, 6085 kHz

[dk8cb]

BR Ismaning is currently testing on 6085 kHz.

Audio level is much too low. There is a strong residual carrier, perhaps a converted non-linear transmitter and a Telefunken DMOD 2 exciter are being used.

A few minutes ago, transmission was carried out with spectrum inverted.

Now (09:05 UTC), they have switched back to AM.

Roland

[Radioratte]

My first record from BR 5 on 6085 kHz! Just five minutes of test ransmissions, and with a lot of blackouts.

Vy 73

Radioratte

[Baldo34]

There will be more tests starting March 1st.
Regular transmissions on 6085 kHz may start on March 7.
73, Klaus

[simone]

Hi all,
here are my results for BR´s tests this morning, only an unattended log, but great to see another member of the ARD start test transmissions in DRM :)!
73, Simone

[Baldo34]

Hi all,
if everything runs as it is planned, there will be again a DRM test on Monday, 7/3 between 8.00 and 09:00 UTC.
73, Klaus

[Baldo34]

Hi all,
much better audio quality today, but still with a carrier. :confused:
See screenshot.
73, Klaus

[dk8cb]

Originally posted by Baldo34
... but still with a carrier.

Hi Klaus,

this is normal, if a modified AM transmitter with a class-C final stage and the original anode modulation transformer is used. Some time ago, it was thought, that such a setup would be totally unsuitable for DRM. But with Telefunken's DMOD2 modulator, a linearity correction circuit has allowed to use such transmitters for DRM as well. One cannot expect a high SNR under such circumstances however. Also, the overall transmitter efficiency will not be as good as on a "real" DRM transmitter.

Roland

[simone]

Hi all,
here are my results of the test transmission this morning, good results only in the last minutes, also quite good SNR for this modified transmitter then.
73, Simone

[Baldo34]

Hi Roland,
thanks for this information. But the relatively low SNR causes problems in practice. Because of the unstable propagation conditions on shortwave (geomagnetic disturbances, fading etc..) the necessary reserve for a troublefree decoding is missing.
AFAIK the Junglinster transmitters are much older. How did they manage these problems?

[dk8cb]

Originally posted by Baldo34
AFAIK the Junglinster transmitters are much older. How did they manage these problems?

There is some information about the transmitter on these pages:
http://www.drmradio.co.uk/html/junglinster.html

http://members.aon.at/wabweb/radio/rtl.htm

On the latter page, one can find information that the transmitter is not running in its normal non-linear class-C AM configuration with full power but instead with the tube operating in linear (class-A) mode at much reduced power.
In this mode, transmitter tuning is different, voltages have to be changed and the AM modulator has to be switched off. Perhaps some permanent modifications are also required.
I guess that, if the transmitter is to be used for both AM and DRM in a switchover mode as is done on 6085 kHz, a linearity correction using a DMOD2 is much easier to implement.

But perhaps someone from the station can give some more information on that. (lx1nw?)

Roland

[simone]

Hi Klaus,

Originally posted by Baldo34

... But the relatively low SNR causes problems in practice. Because of the unstable propagation conditions on shortwave (geomagnetic disturbances, fading etc..) the necessary reserve for a troublefree decoding is missing.

Interestingly my experience was quite the opposite, unfortunately the results from the early days are not available anymore on the forum, but whenever there was a problem limiting the SNR at the Tx I got better decoding ( as long as it was not at the threshold of the required SNR for a given coderate). Maybe the software decoders handle a more stable but even lower SNR better.
73, Simone

[Baldo34]

Hi all,
next test transmission on 6085 kHz today (April 6th) between 10:15 UTC and 11:15 UTC, again with a carrier. The carrier will be eliminated at the end of May.
73, Klaus

[Baldo34]

The signal strength is ok, up to 9+ 30dB.
Because of the carrier SNR is low with many dropouts.

[dk8cb]

Hi,

it seems that the audio level is a bit too high. Compared to BBC 7320 kHz, audio is much louder.
There also seems to be some audio distortion.

Even at this short distance, reception is clearly mostly ionospheric with strong fluctuations, see attached impulse response.

Roland

[simone]

Hi all,
lots of dropouts on BR´s test this morning, also very high audio levels, see attachment
73, Simone

[dk8cb]

Hi,

here is my report on local reception with both Dream and DRMSWR.
A much better result with Dream, Modified Metrics and Bandpass filter were switched on.

Roland

[Baldo34]

Hi all,
today again DRM test 10:15-11.15 UTC.
73, Klaus

[dk8cb]

Hi,

audio level is still too high but the distortion that could be noticed yesterday seems to have vanished.

Roland

[simone]

Hi all,
better results than yesterday, perfect decoding using DReaM, again audio levels were too high, also I wondered about B5 now using par. stereo?
73, Simone

[dk8cb]

Hi,

I read Klaus' message too late, so here is only a short report. Reception was not very good.

Roland

[dk8cb]

Hi,

Ismaning seems to have started its regular transmissions on 6085 kHz today. There is still a strong residual carrier. Local reception at a distance of only 24 kms from the transmitter site is almost impossible at the moment, SNR is very low. I only get occasional bits of audio here. Listening to the DRM signal in AM mode reveals fast flutter fading on it.
However, if audio is there, its level is much too high when compared to all other DRM stations that I can receive here.

I also wonder why they are broadcasting in stereo on shortwave, whereas the same (news only) programme is being broadcast only in mono on local FM.
Also, I think that there is enough space available for the station label to be written as "BR-B5aktuell" instead of abbreviating it to "BR-B5akt".

Roland

[Baldo34]

90% audio here since 07:30 UTC. Due to the carrier SNR is not very high (around 17 dB). Audio level is too high.
73, Klaus

[simone]

Hi all,
signal was very weak in the morning, strong and stable signal in the afternoon, see attachment
Audio levels are still too high!
73, Simone

[df9rb]

Hi all,

higher audio level than the other DRM stations, shrill audio and low SNR (probably because of the carrier in the center?) with
drop outs.

Bernd, DF9RB

[carknue]

Bad results.

[simone]

Hi all,
perfect results this evening for 4.5 hours, I think if tuned properly the residual carrier is not a big problem, before the break SNR was about 24dB, so the low SNR in Bernd´s log was not limited at the Tx.
73, Simone

[tradio99]

AM station at 6085, and 6075 is active, unfortunately, but audio now 21.24UTC is almost without dropouts

[Owdjim]

Log of 6085 kHz from New Zealand using my AR-7030 receiver.

Cheers, Chris

[tradio99]

my results today - two logs
1. 4.11 - 5.25 UTC, CDA - 54.2%
2. 9.02 - 10.03 UTC - 2.1%
the third file is this evening screenshot (16.59 UTC), reception conditions are bad, carriers on 6080, 6085 and 6090 kHz. I see two carriers on 6085, which do not coincide.

[dk8cb]

@ tradio99

Input level on all your screenshots is very high. At such high input levels, you may occasionally suffer from a reduction in correctly decoded audio caused by overdriving the audio input. Have a look at the bar graph in Dream's main window, it will often extend into the red region. Better use a level just below -60 dB in Dream's evaluation window.

Roland

[simone]

Hi all,
good results this afternoon, see attachment.
Later I also listened in the car, it is the first time I can switch between FM and DRM listening to the same programme in the car ;) great!
73, Simone

[carknue]

Again bad results.

[simone]

Hi all,
some dropouts this evening, see attachment
73, Simone

[tradio99]

@ dk8cb

Thank you, Roland! Last year I tried different levels and periodically changed line and microphone inputs for better reception, unfortunately, specific detail of my location - most of the signals are weak, so last time I experimented with high input level really, in some cases it gives better SNR. OK, I`ll reduce level again and compare the results.

[simone]

Hi all,
quite good results except during a thunderstorm at the beginning, see attachment
73, Simone

[df8uo]

Hi all,
attached my result from 19h30 to 21h35. At 21h30 signal dropped down.
73
Daniel

[df8uo]

Hi all,
find attached 70 min log from this afternoon. Signal was quite strong (average S9). However SNR quite low.
73
Daniel

[PaulT]

report for this evening. Audio not as bad as it looks. Bit of co-channel qrm.

Paul T

[simone]

Hi all,
perfect decoding this evening for 5 hours, see attachment
73, Simone

[df8uo]

Hi all,
quite bad result this afternoon at my location.
73, Daniel

[simone]

Hi all,
quite good until 1900 this evening, see attachment
73, Simone

[mitajohn]

Hi All,

Not bad for the first reception. Near the end of TX the signal degraded slowly.

John

[df9rb]

Hi,

it is no pleasure for me to listen to BR-B5akt! There are many
drop outs also during daylight inspite of an 9+ signal, with
a well looking Impulse Response and no interference.
I presume that the
reason is the carrier in the center of the DRM signal which
is approx. 10 db higher than the DRM signal. Hopefully BR will
modify the transmitter avoiding the waste of several kW by
this carrier containing no DRM-informations.
Some months ago I observed test transmissions from DLF on
177 kHz. Time by time they added a carrier in the center of
the DRM signal which immediately lower the SNR by 6 to 7 dB.

For sure the BR engineers know this low effective method to
linearise a transmitter but the financial controllers prefere to
waste money daily instead of investing one time in a
modification which would improve the listening quality for the
customers paying for it.


Bernd, DF9RB

[mitajohn]

Hi All,

Poor reception this evening. I stopped log after 1 hour. Look at the "zip" how it started and ended.

John

[FritzWue]

Diagram looks worse than reception actually was, but many dropouts caused by a.m. interference from 10kHz down and selective fading.

[simone]

Hi all,
good conditions tonight, see attachment
Still audio levels are too high.
73, Simone

[Baldo34]

Hi all,
BR Ismaning now with 50 kW and without carrier.
Reception reports welcome: techinfo@brnet.de
73, Klaus

[df9rb]

Much better!

Bernd, DF9RB

[mitajohn]

Hi all,

Better reception but still problematic after 1600. Good sound.
Look at the zip: 6085_B=bad reception, 6085_G=good reception.

John

[carknue]

Congratulations! Very good reception until 21:35 UTC. As always with the DRM Software Radio, it sounded much better that the graph looks like. The dropots above 1440 frames could not be heard. Signal was very strong S9+20 to S9+50dB.

[mitajohn]

Hi all,

An even better reception tonight, a very good one. The signal was stronger now.

John

[mitajohn]

Hi all,

This the today's morning reception. Signal was quite strong at log's start with very good result. Then started weakening until it almost disappeared.

John

[carknue]

Most of the time quite ok. Between 13:20 and 14:20 we had a thunderstorm here coming from the south. When it disappeared, SW reception improved.

[carknue]

Results of today.

[simone]

Hi all,
good results this evening, see attachment
73, Simone

[dk8cb]

Hi,

here is my report from a location only 24 kms away from the TX site.
In the past I was almost unable to receive the signal poperly, interestingly it seems to work now, at least it does so today.

Roland

[mitajohn]

Hi all,

Good results this morning until signal disappearance. I dont know the cause of the big dip because this log was an unattended one.

John

[Baldo34]

Hi all,
unfortunately Ismaning again with a carrier. :mad:
73, Klaus

[simone]

Hi all,
good results in the first hour of my log, later conditions got worse, after the break just before 1000, the carrier appeared again
73, Simone

[simone]

Hi all,
good results this evening, see attachment
73, Simone

[simone]

Hi all,
strong and stable signal tonight, great results but still audio levels are much too high!
73, Simone

[FritzWue]

Audio level much higher than with all others and interference from both sides.

[carknue]

Nearly perfect reception. No problem to listen to the programme.

[carknue]

Hi all,

changing results this morning. Sometimes Signal was quite weak. But a lot of these dropouts were caused by DW on 6075 khz! The audio bandwidth of this tx is also a bit too wide. It often killed 25 drm carriers ! DW should reduce audio bandwidth to 5 khz!

[carknue]

2 hours log this evening.

[simone]

Hi all,
2 hours with perfect results tonight, see attachment
73, Simone

[FritzWue]

Good reception here too, high audio level:

[FritzWue]

When the skip gets long.....
suddenly the signal is gone!

[simone]

Hi all,
good results this morning, see attachment
Btw, meanwhile the audio level has been corrected today, thanks :)
73, Simone

[Funkerberg]

strong fluctuations today, not typically for this location

[mitajohn]

Hi all,

Here is the tonight's result on "BR Ismaning - KW 6085 kHz".

John

[FritzWue]

They know when to shut down, SNR was getting lower. ;)

[FritzWue]

Nice constant signal this morning.

[FritzWue]

This morning the problem was interference, first a little from 6075kHz, then more from 6095kHz with RTL coming out of the dead zone here.

[FritzWue]

The a.m. interference from the lower ferquency is more of a problem than the drm signal of RTL.

[simone]

Hi all,
good results this evening, see attachment
73, Simone

[FritzWue]

Not so good this morning. Signal came up here at around 04:30 UTC, but interference. RTL was stronger this morning.

[simone]

Hi all,
some results from this morning, btw, since a few days with the carrier again
73, Simone

[simone]

Hi all,
quite good and high SNR this evening (still with carrier), see attachment
73, Simone

[Funkerberg]

for Berlin typical results, unfortunately still with carrier

[FritzWue]

During fading periods the interferences reduce the snr a lot.
Signal with carrier all the time.

[pjb2802]

Helle everyone,

good and stable signal this morning from BR5akt.

See attachment

[Per]

Hi,

Quite a shaky start at 18:20 UTC. But reception improved and was good after ½ hour.
"DRM Sendung des Bayerischen Rundfunks "

[FritzWue]

....with carrier:

[FritzWue]

Good daytime signal after about 06:20 UTC:

[FritzWue]

Morning log:

[simone]

Hi all,
pretty good results this morning, see attachment
73, Simone

[carknue]

The carrier is weaker than it was earlier.

[carknue]

A lot of ups and downs this morning.

[FritzWue]

A slow start this morning and later some problems when 6095kHz was more than 20dB stronger during fading periods.

[mitajohn]

Hi all,

A short log this morning.

John

[df9rb]

Hi all,

1st graph is 6085, the 2nd DW on 5975 from Wertachtal. Both stations are received from nearly the same direction and distance. It was interesting to watch Impulse Response - the impulses looked very similar and changed nearly synchronous.

Bernd, DF9RB

[simone]

Hi all,
quite good results for more than 5 hours today, see attachment
73, Simone

[mitajohn]

Hi all,

A below average result this morning. At the first 20 mins was good but then started dropping gradually.

John

[mitajohn]

Hi all,

After the first bad part caused by interference, the rest was nearly perfect except the single drop out.

John

[FritzWue]

A little shopping tour to town and back with three stops.

[iw0hk]

Hi !
nice reception, with some drops at the end from Italy,

Wishes, Andrea
Roma

Rx: FT 817 + 455/12 Converter

[mitajohn]

Hi all,

Very good results tonight for nearly 2 hours. The typical reception problems at the begining and the end at this time of the day.

John

[Per]

Hi,

Despite a rather "unsettled" signal, the result was good. That is until the signal was lost at 19:15 UTC. However at 19:30 the signal came back.

[simone]

Hi all,
very good results this evening, see attachment
73, Simone

[Owdjim]

Some broken audio decodable here in NZ today.

73 Chris

[FritzWue]

Not so good in the car today.
First driving around in 48712 Gescher a little, then going to 45127 Essen.
There were many short interruptions although SNR was good. I tried a lot, even checked the 12kHz plug ( big dropout in the middle), but nothing helped. There were strong signals from both sides, analogue from the lower and DRM from the higher channel.

[stegewicht]

A reception-report for 6085 kHz BR-B5akt

[FritzWue]

...and suddenly the condx were gone:

[FritzWue]

Good reception today driving from 48341 Altenberge to 48712 Gescher.

[df9rb]

Short log, comparing outdoor- / indoor-antenna. No difference on this station. I live quite close to dead zone of BR5. The signal is quite scattered here. It seems that the outdoor antenna don t help here.

Bernd, DF9RB

[carknue]

Quite good, not too many audible dropouts.

[FritzWue]

Good in the morning, later problems when 6095kHz sometimes gets much stronger during fading periods.

[FritzWue]

Driving from 48712 Gescher to Muenster.
Looks worse than it was, to the end RTL 6095kHz was much stronger.

[FritzWue]

Driving from 48712 Gescher via A31, A2, A45 to near 58088 Hagen/Ruhr.

[carknue]

Not any better than in Frankfurt. I think they should get rid of the AM carrier and they need more power. RTL is always stronger.

[simone]

Hi all,
many dropouts today, no decoding from 1510, see attachment
Simone

[FritzWue]

Driving from 48712 Gescher to Neuss West via A31, A2, A3, A40, A57. Nice info programme for the road.

[simone]

Hi all,
great results until 1445, see attachment
Simone

[df9rb]

Hi all,

acceptable this morning.

Bernd, DF9RB

[df9rb]

Nearly perfect

Bernd, DF9RB

[carknue]

results from this morning

[FritzWue]

Driving from 48712 Gescher to 33330 Guetersloh.
Signal is a little weak sometimes, then strong signals on both sides causing some dropouts.

[carknue]

Log started to early for this frequency.

[FritzWue]

Driving from near Cloppenburg to near Rheine via A1 and A30.
Sometimes problems with carrier on 6090kHz.

[FritzWue]

Driving from Coesfeld to Muenster:

[simone]

Hi all,
some deep dropouts during fading but not too bad overall.
Simone

[Owdjim]

Hi All

6085 kHz was better than usual here today. Audio decoding was possible for a few minutes (normally it is not possible here).

Cheers, Chris

[FritzWue]

Driving from 48712 Gescher to 49661 Cloppenburg via A31, A31, A1.
Little problems to the end in noisy Cloppenburg.

[carknue]

It started good, but then. 300 km seems to be still too close to TX on 49m.

[FritzWue]

Driving from 48712 Gescher to 45896 Gelsenkirchen-Scholven:

[FritzWue]

Driving from 48712 Gescher to Ascheberg south of Muenster via B525, A43, A1, no joy today, 6095 sometimes much stronger and interference from lower side:

[FritzWue]

Very good tonight:

[FritzWue]

Good in the morning until ~ 06:00 UTC:

[Per]

Hi,

This mornings result from BR-B5akt: CDA 60%.
Time: 05:05 - 05:47 UTC.

[FritzWue]

Excellent:

[FritzWue]

Interferences from 5 and 10 kHz down, reception stabilized as signal got stronger.
Since some time this transmission starts earlier than the stated 05:00 UTC in DRMSchedule.

[DE8MSH]

BR-B5akt off???

22442

[FritzWue]

Just a few minutes between Ahaus and Lingen on the A31.
Dropouts when 6095kHz became much stronger with propagation conditions.

[FritzWue]

Usually good in the morning with a weak period around 06:00 UTC.
Report in two parts, sorry.....

[FritzWue]

Not so good this morning with strong RTL 6095 kHz reducing my if gain.

[FritzWue]

Unattended log.
This transmission starts earlier than listed in DRMSchedule.ini.

[df9rb]

BR-B5akt in Mode A! I think this is not a good idea. Fieldstrength is around 500 µV but the Impuse Response is most the time longer than accepted for Mode A. Therefore not much decoded audio.

Bernd, DF9RB

[FritzWue]

Quite good again this morning:

[FritzWue]

Unattended log, don't know what happened at 17:00 UTC, 99.5% CDA until then.

[FritzWue]

Not good this morning, strong signals on both sides:

[FritzWue]

Gescher-A31-Bottrop-A2-Recklinghausen-A43-A40-Bochum.
Quite good this morning at high speed, only two dropouts in the A2 and A40 tunnels.

[f1tay]

Reception at Paris.
Daniel

[simone]

Typical results on this transmission in my location.
Simone

[Digger]

Half an hour of perfect reception, but just before 1445 it came to a sudden end. Was it because of AM - 5 kHz and perhaps even on the channel?

[FritzWue]

Osnabrueck-A30-Bad Oeynhausen-Minden
Good reception except in the tunnel

[f1tay]

Reception at Paris.
Daniel

[FritzWue]

Osnabrueck-A30-Bad Oeynhausen-A2-Bad Eilsen-B83-Hameln

[FritzWue]

Coesfeld-B525-A43-A1-Muenster Nord

[FritzWue]

Driving around locally 52N 07E:

[FritzWue]

Kaiserberg-A3-A2-A31-Gescher

[FritzWue]

Luenen-A2-A31-Gescher
No audio when RTL 6095kHz is too strong in my 12kHz filter controlling the agc. This also happens on 6095kHz the other way around.

[Digger]

Quite good except for one big dropout.

[FritzWue]

Bad Oeynhausen-A30-A1- Muenster

[dadalbinder]

Die kurze Entfernung ist häufig nicht gut zu empfangen. Heute ganz hervorragend. Auffällig ist, daß der BR immer noch mit einem Modulator arbeitet, der einen starken klassischen Träger in der Mitte des Spektrums zeigt.

Möglicherweise wären die Ergebnisse stärker, man würde dort auf das normale DRM-Signal irgendwann einmal umsteigen

Wolfgang Hartmann, 49N28, 11E00

[DRM-OM]

Auffällig ist, daß der BR immer noch mit einem Modulator arbeitet, der einen starken klassischen Träger in der Mitte des Spektrums zeigt.
Möglicherweise wären die Ergebnisse stärker, man würde dort auf das normale DRM-Signal irgendwann einmal umsteigen

Träger wird üblicherweise zugegeben, um die Endstufen im Nulldurchgang zu linearisieren. Glaube nicht, daß der BR viel Geld in eine neue Leistungselektronik stecken wird ....

[andimik]

Some problems but much higher SNR than RTL RADIO at the same time at 6095.

[Digger]

Auffällig ist, daß der BR immer noch mit einem Modulator arbeitet, der einen starken klassischen Träger in der Mitte des Spektrums zeigt.

Wolfgang Hartmann, 49N28, 11E00


Looking back, I found the following message from BR5Aktuell from 9th May 2005:

"Momentan ist aufgrund einiger fehlender Bauteile der Träger nicht
unterdrückt (dies ist KEIN Simulcastbetrieb!!!). In Kürze wird sich dies
aber ändern und damit erheblich zur S/N-Verbesserung beitragen."

Well...

[andimik]

Report from Austria.

[andimik]

Another report from Austria.

There was a thunderstorm during the log.

[andimik]

Lots of ups and downs.

[andimik]

Does anybody know if there is a problem transmitting the carrier and the used bitrate? As BR uses Prot. Level 1 the bitrate seems to be too low (should be 20,96 kBit AFAIK).

Today no chance at noon local time.

[andimik]

Good till signal was lost.

[df9rb]

Too close to the TX

Bernd, DR9RB

[FritzWue]

Unna-A1-A43-B525-Gescher

[FritzWue]

Muenster-A43-B525-Gescher

[FritzWue]

Ahaus-A31-A30-Osnabrück

[simone]

A long log (11.5 hours) from yesterday.
Simone

[FritzWue]

Unattended overnight log

[andimik]

Are you sure, DReaM has not tuned in to 6095 at night? I don't think 6085 is on air the whole night long.

[FritzWue]

Hi Andi,
it was on all night long, that's why I posted it here!
Tonight a weak period with bad impulse shape but otherwise good.

[FritzWue]

Unattended log

[andimik]

The Bayerische Rundfunk changed the parameters. Now Prot Level 0 and 15,54 kBit for audio :rolleyes:

[simone]

The MM service is Journaline with information about all the BR radio programmes.
Simone

[andimik]

The Journaline bitrate has fortunately been decreased.

[simone]

Journaline was back tonight, besides the information about BR radio programmes also with updated detailed weather information etc.
Simone

[FritzWue]

Gelsenkirchen-A2-A31-Gescher

[maxpower]

Hi all!

Heres a daytime report for today:

Starting at 08.30 UTC and ending at 19.21 UTC I got an excellent 98.45% correct decoded audio for the 10 kW Transmitter through the eleven hours.

Problems in RX where mainly at dawn and a little bit at noon.

The reason could maybe that BR used today the - for me - new mode with 15.54 kBit at Mode B. Soundquality is not so good, but good enough for news programming.

Stephan

[FritzWue]

Bad Oeynhausen-A30-A31-Ahaus

[FritzWue]

Essen-A2-A31-Gescher

[FritzWue]

Osnabrueck-A30-B61-Miinden
Good results except in the 1.7km tunnel under Porta Westfalica.

[FritzWue]

Coesfeld-B525-A43-Muenster

[simone]

Good results from 06.15 UTC.
Simone

[simone]

Similar results today and yesterday.
Simone

[mitajohn]

Hi all,

Not bad for about 50 mins until the signal got weak.

[Ant-SWL]

Very good today ! :)
Some minor drop-outs around 1200 UTC in a 4 hour log.

[Ant-SWL]

Strong and stable signal beginnig around 0700 UTC . :)

[df9rb]

Hi all,


perfect.

Bernd, DF9RB

[df9rb]

After 16:00 condx down

Bernd, DF9RB

[simone]

Good results for about 10 hours, starting at 06.30.
Simone

[drmdab]

Not bad today.

[f1tay]

Reception at Paris.
Daniel

[FritzWue]

Nottuln-B525-Coesfeld

[FritzWue]

Coesfeld-B525-A43-Muenster
I had better results before...

[simone]

Rather good results until 1415.
Simone

[simone]

Not too bad from 0800- 1500, but nothing before and after that period.
Simone

[simone]

Not too bad until 1530 yesterday.
Simone

[Digger]

Very good except for something around 12:40 UTC.


Changed the log with wrong QRG

[carknue]

Good reception before 13 UTC.

[simone]

Same here, not much after 1300.
Simone

[simone]

A long log from yesterday.
Simone

[Digger]

Very strong signal here, but sometimes the decoding just won't work anyway. The log is about one and a half hours long.

[FritzWue]

Here also some decoding problems with fixed/manual rx gain and the signal getting very strong sometimes.

[simone]

A long log from today.
Simone

[drmdab]

The Journaline service is now on the air all the time.

[Per]

The Journaline service is now on the air all the time.

Hi,

Yeah, I noticed this too. But right now it crashes when using my DRM SW Radio px!? Dream is however OK, so now I can read 'Munchenwetter'.

I gave BR-B5akt a try this morning. But the frequency was to high to give a good result. So from 05:15 to 05:51 UTC I only had 18 % CDA.

[drmdab]

But right now it crashes when using my DRM SW Radio px!?
I have no problems, the Journaline service works with DREAM as well as with DRMSWRX. :confused:

[mitajohn]

Hi all,

In the absence of QRM I got some audio from this TX.

[Sixten]

Signal stringth like local S9+50db from 1930UTC but after 70min down to S8 .

So log is 70min. this evning.

[Digger]

Strong signal here in the afternoon, but only about 85% decoded audio.

[Digger]

Very peculiar IR shape sometimes ruined the decoding completely.

[simone]

A long log from today, weak signal until 0915.
Simone

[simone]

Worked quite good from 1130- 1700 yestreday.
Simone

[FritzWue]

Good result in the morning:

[simone]

Today´s long log, not too bad for about 10 hours.
Simone

[mitajohn]

Hi all,

The signal was 35-40 dBuV. A good result until 15:57, then QRM started. Journalline was OK, if there also was an English text, as per DW, it would be better.

[Digger]

Perfect. 101 minutes, just perfect.

[simone]

A long unsáttended log from yesterday, quite good from 0800.
Simone

[drmdab]

No DRM signal audible today!

Edit: The DRM tx will be on air again in the next hours.

[Digger]

Not so good from my location.

[simone]

Signal was back today after a repair, quite good results this afternoon.
Simone

[mitajohn]

Hi all,

An almost perfect result for 90 mins this morning. The signal was around 40 dBuV with slow fading, SQ: 99.91%.

[FritzWue]

Good in the evening here:

[drmdab]

60 minutes Ismaning - 94 % CDA.

[FritzWue]

Listening to sports on the radio, some distortion audible at low bitrate:

[PP5AZF-Ataliba]

Rádio BR misturada com 3 outras rádios em AM 6.080, 6085 e 6090 Khz

Translation: "Google"
Radio BR mixed with 3 other AM radio in 6080, 6085 and 6090 kHz

[drmdab]

93 minutes BR-B5 aktuell in the evening and 75 % correct decoded audio. Not to bad because there was some local QRM.

[mitajohn]

Hi all,

Here is a log from Chania/Crete, using a laptop, the DRT1 and the Degen loop at about 10m above sea level. Although the signal was about 40 dBuV, due to the very noisy environment the results were not as good as expected

[Digger]

A very unstable 2 1/2 h long log this afternoon.

[Digger]

A mixed result from this afternoon...

[Per]

Hi,

Since RTL was off the air I had no problems listening to BR-B5akt.
Some received txt msg:
Sender Ismaning KW 6085 kHz
mit Journaline - Test.
Sie hoeren eine DRM-Testsendung des Bayerischen Rundfunks.
Time listening: 18:02 - 18:34 UTC, which resulted in a CDA of 91 %.

[simone]

A long log from yesterday, pretty good results in the late evening until the end.
Simone

[Digger]

The first 20 minutes were very good with a clear CIR; then things got worse and the CIR finally became very wide - almost flat.

[Per]

Hi,

Quite good reception this early morning of BR.
Time: 04:05 - 05:18 UTC
Result: 87 % CDA

[FritzWue]

Mixed result:
Very good impulse response, but interference from DW on 6075 kHz.
Very high audio level, distortions audible at low bitrate.

[Digger]

Today's log is a comparison between a) the Yaesu FRG-7700 with the active antenna (a modded PA0RDT) connected to my office PC running Dream and b) Roadstar TRA-2350P with its telescopic antenna and a modded 9 V DC power supply, a ground wire from the Ant GND terminal to the pipe of the central heating, Dream running on a Lap-Top with Windoze Vista with the regular 230 VAC power supply connected to the laptop.

Both logs are almost perfect. The SNR is about the same for the two receivers.

[Digger]

A 4 1/2 hours long log taken with the Roadstar and its telescopic antenna. Almost 95% CDA.

[Per]

Hi,

Also today RTL was off air when I started listening to BR-B5 akt, hence quite good reception.
Time: 19:08 - 18:42 UTC, which gave 87 % CDA.

[Sixten]

Hi all.

Short log from BR signal stringth good but strong AM on 6080 give drop out in fading.

[simone]

A long log from yesterday, rather goo until 1730.
Simone

[Sixten]

Hi all.

25min. log this morning. Strong AM on 6080 peak over DRM in QSB. And picture of News service. Very good . :)

[FritzWue]

Good until the evening, journaline is working fine:

[Per]

Good evening,

Perfect result from BR-B5akt this early evening. No RTL...
Listening: 18:04-18:38 UTC, which resulted in a CDA of 97 %.
The Journaline was also active.

[Jos]

Hi all,

Strange results for today.

Jos.

[simone]

Good results in the evening until 1850.
Simone

[Digger]

Perfect until 1330 when it suddenly got worse. By the way, after 1400 it got better again. But it didn't last for long :eek: so no 2:nd log...

[simone]

Either excellent or not much at all.
Simone

[FritzWue]

Great signal, but after some time the propagation was gone:

[andimik]

Lots of fading this morning.

I've to check my hardware, seems my long wire is broken :mad:

[simone]

Great results for 10 hours yesterday, much more reliable than during summer.
Simone