Oranienburg 0177 kHz [Archive] - DRM Software Radio Forums

MarkT

18-03-2005, 13:54

Hi all,
Here is my log for this afternoon. There was 2 major interuptions, one at 12.54 and 13.22 UTC. There must of been some problem at the transmitter but was only brief. The french AM station on 183Khz caused little splatter but posed no problems.
Generally very pleased with the reception and audio considering my distance.

df9rb

18-03-2005, 16:17

Hi Mark,

I just came home and the first I did was to tune again to
177. I also have splatter from the 183. "Fortunately" the
transmission on 177 switches of from time to time. So I used
this interruptions to minimize the splatter from 183 by turning my ALA1530 a few degrees. In this optimal positon I got the 30 dB. Before I turned the ALA to minimum carrierer of 183. But In this position the SNR is only 25 dB. I do not understand why the minimum splatter position is different to minimal carrier position but it is.
With my other antennas (30 m wire or EWE) the DRM reception
on 177 is impossible (SNR only 8 to 10 dB) because the splatter from 183 is to strong.

Did you also try to minimize splatter with your ALA?

I enclosed two screenshots with transmitter on 177 off. Above 12 khz you can see the splatter from 183 with the ALA and the other the EWE

Bernd , DF9RB

MarkT

18-03-2005, 21:59

Originally posted by df9rb
Hi Mark,

I just came home and the first I did was to tune again to
177. I also have splatter from the 183. "Fortunately" the
transmission on 177 switches of from time to time. So I used
this interruptions to minimize the splatter from 183 by turning my ALA1530 a few degrees. In this optimal positon I got the 30 dB. Before I turned the ALA to minimum carrierer of 183. But In this position the SNR is only 25 dB. I do not understand why the minimum splatter position is different to minimal carrier position but it is.
With my other antennas (30 m wire or EWE) the DRM reception
on 177 is impossible (SNR only 8 to 10 dB) because the splatter from 183 is to strong.

Did you also try to minimize splatter with your ALA?

I enclosed two screenshots with transmitter on 177 off. Above 12 khz you can see the splatter from 183 with the ALA and the other the EWE

Bernd , DF9RB

Hi Bernd,

Luckely for me 183 Khz and Oranienburg are nearly 90 deg apart in direction from my location.
First of all before I started logging, the ALA 1530 was pointing to 183 Khz and the splatter was not to bad here but the SNR was only 9-10 dbs. When I moved the ALA to null out 183 Khz the SNR improved by about 4 dbs.
Don`t know why your other antennas
are performing so poor on this freq, maybe noise or something.
Ever since I purchased the ALA I have never known a antenna to perform so well for the size. It may not have as much gain as the others but the SNR or
"quiet" characteristics are amazing.

FritzWue

20-03-2005, 22:29

177 kHz antenna info here:
http://telefunken-sender.de/News_Presse/DRM_u__LW-Ant/drm_u__lw-ant.html

Baldo34

23-08-2005, 12:12

Hi all,
Oranienburg on 177 kHz with DRM test.
Bad audio quality (spectrum shows only 6 kHz).
Strong signal, but low SNR (max. 15 dB) because of adjacent channel (183 kHz).
73, Klaus

carknue

23-08-2005, 18:21

Signal looks really strong here in Frankfurt. Much stronger than RTL 1440 khz on daytime. But the Mega blaster on 183 khz destroys every chance of a sync. Screenshot was taken with AOR and 20 khz filter. Authorites should think about putting these two stations back into the normal 9 khz scheme.

simone

23-08-2005, 18:36

Hi all,
same situation here, that´s what the SNR spectrum looks like.
73, Simone

FritzWue

23-08-2005, 18:52

Thanks to Klaus' messages I was able to receive the last minutes with the shielded loop antenna at my location at the dutch border.
A strong signal with a lot of interference.

Andreas

23-08-2005, 18:53

Hi !

And here is my very first log of 177 kHz.

SNR is not quite high, although my QTH is near to the Tx - most probably this is caused not by low S but by high N ;) around, including noise caused by my computer.

Best reception during last minutes before the sudden end was achieved by turning the ferrite rod thus Europe 1 was nearly nulled out.

Andreas

FritzWue

23-08-2005, 19:22

Some screenshots with more details.
At my location Berlin and Saarlouis are about 90° apart, so very good efficiency of the loop antenna.
As Carsten said this is a very bad frequency allocation, even if they want to transmit a megawatt in the future:
http://telefunken-sender.de/News_Presse/DRM_u__LW-Ant/drm_u__lw-ant.html
If they want to demonstrate this during the IFA the sound quality should be enhanced!!!

FritzWue

23-08-2005, 20:21

TX location 16515 Zehlendorf:

Baldo34

29-08-2005, 08:45

Hi all,
LW 177 kHz switched over to DRM at 07:56 UT this morning, unfortunately with a carrier (like Ismaning on 6085 kHz).
Good audio quality now.
A 2nd channel tells the history of Deutschlandradio in HVXC with 2.4 kbps.

73, Klaus

Paul Widger

29-08-2005, 14:10

Receiving 177 Khz here in Huddersfield N,England.
A few dropouts but generally quite good,maybe it
will improve at night.
Using two loops,the second loop cancels 183khz.
Is the carrier necessary?
Could hear the old AM reasonably,more noise
but no dropouts.

Paul.

df9rb

29-08-2005, 15:52

Hi,

quite stable with the loop minimized towards 183 kHz. With
other antennas no decoding.

Bernd, DF9RB

FritzWue

29-08-2005, 18:26

With the loop antenna's minimum to Saarlouis no problems here in the afternoon and early evening. Good audio quality!

Andreas

29-08-2005, 19:47

I did not really expect problems at my location and there were none.

Europe 1 is at right angle to Oranienburg from here and the Tx could always be heard with a SINPO of near to 55555 (on my dear old Grundig Satellit 650)

The big drop at 18:40 was the fully unsuccessful attempt to receive a signal with the whip antenna, the other one - I don't know.

However the small adjustable ferrite rod mounted to my indoor antenna worked quite well.

And yes indeed: sound quality is near to FM.

73, Andreas

"It's a small step for DRM but a big step for long wave"

MarkT

29-08-2005, 19:51

Hi all,

Listening to some nice classical music from
177 kHz just now, great audio quality. Picking up the second channel as well.
Had to turn the ALA 1530 to null out 183 kHz. A bit of a "battle" with 168 kHz as well but Oranienburg is winning at the moment....
Will send in my log later tonight.

dk8cb

29-08-2005, 20:56

A very low SNR on the ferrite antenna here in Munich, much too low for audio. 183 kHz cannot be nulled sufficiently such that there is still enough signal from DLF.

Guess, I will have to put up a longwave loop in addition to my already existing mediumwave loop.

Roland

df9rb

29-08-2005, 21:16

Beginning problems at sunset, quite difficult at night in South East Gemany but in Mode A only a few drop outs even with 7 dB SNR. The DRT1 is also a little better than the TS850 under this conditions (1st graph in log).

Bernd, DF9RB

FritzWue

29-08-2005, 22:25

When I stopped the log this evening and saw the SNR was going down I started again.
Main reason for the decreasing SNR at my location obviously is TRT on 180kHz. I can't do anything about it. When I try to null Turkey then Europe1 on 183kHz is by far too strong here.
Nevertheless audio is remarkably good down to 15dB SNR with 21kbps!

MarkT

29-08-2005, 22:27

Hi all,

Here is my results for tonight. Not too bad but as Carsten said this is a bad frequency.
I had a few bad dropouts caused by adjacent channel interference from 168 kHz.
It just shows the potental of DRM on long wave band.

carknue

29-08-2005, 23:18

Wow! shortly after 23 UTC, Europe 1 closed down. Now 28 dB! LW really rocks! Short IR! S9+20dB. :cool:

df9cy

30-08-2005, 04:36

Big signal here 20km north of Kiel. I had 21 dB S/N at 17 UTC yesterday dropping to 17 dB at 21 UTC. This morning I saw about 19 dB and I am still running the log unattended until tonight.
All looks very well with good audio quality.

We (in our company) will try mobile reception today in a VW car with internal antennas.

73 de Christoph

carknue

30-08-2005, 05:54

Perfect reception last night until 183 khz returned back to life around 2 UTC. After that no chance for a single audio frame.

Its really a shame to start DRM with this frequency:(

FritzWue

30-08-2005, 06:56

When 183kHz was switched off between 23 and 02 UTC the full potential of longwave DRM was visible:
SNR 29.4dB average at 443km distance.
I did some tests before I started this log. SNR was some dBs lower on the T-antenna compared to the loop even with 183kHz switched off.

MarkT

30-08-2005, 22:13

Hi all,

Results for tonight, roughly same as last night with adjacent channel interference.

simone

31-08-2005, 04:17

Hi all,
good results last night, see attachment
73, Simone

FritzWue

31-08-2005, 06:32

Overnight log with loop minimum unintentionally set 10° off Saarlouis. I corrected that at 05:47, the dropouts were caused by this. Surprisingly there was good audio down to 14dB SNR.

Andreas

31-08-2005, 16:55

Here in the north of Germany there is more interference from the north-east.

However the "high" between 23:00 and 2:00 UTC was encountered too. I did not attend the log but when I had a short look at approx.. 23:53 both adjacent Txes were apparently off air.

73, Andreas

FritzWue

31-08-2005, 19:17

Now the News Service and HVXC is available.
Attached is a zip containing two short recorded HVXC wave files, one good and one distorted by TRT 180kHz.

PaulT

31-08-2005, 23:22

With 183 off air at 2307 I still have a rogue impulse at 180khz?? An harmonic I guess, any ideas what it might be and how I can get rid. The Wellbrook loop has been adjusted to minimize.

Best Regards

Paul T

FritzWue

01-09-2005, 06:23

Hi Paul T,
please have a look at my post just before yours, it is TRT Turkey on 180kHz. ;)
This will help, longwave is also included:
http://www.emwg.info/
There is a new september 2005 edition!

MarkT

01-09-2005, 18:59

Hi all,

Here is nearly 1 hours worth from 177 kHz.
Unfortunately I am receiving bad spherics here this evening roughly the same signal strength resulting in bad breakup of DRM stream.

Per

01-09-2005, 19:58

Hi,

No audio on 177 kHz, but right now, 19:56 UTC i have around 6.4 dB SNR, with three services running:
DLR @ 20.2 kbps + 2 x Wir ueber uns (2.4 kbps + 1 kbps).

PaulT

01-09-2005, 23:53

Many thanks for the 180k info. My brain cells must be going quicker than I expected. I had read your post and also listened to the HVXC files one of which you identified as the TRT interferer. I must stay off the Chardonnay?? (or drink some more)

Best Regards
Paul T

FritzWue

02-09-2005, 08:45

"I must stay off the Chardonnay?? (or drink some more)"
You're welcome, the second choice is best!!! :D

Here is my unattended overnight log until stable daylight condx.
Longwave is very sensitive to static noise.

MarkT

02-09-2005, 17:22

Hi all,

Here is my results for this afternoon.

df9rb

03-09-2005, 12:21

Hi all,

here a 90 minutes log with the loop antenna minimized towerds 183.

3 Remarks:

- During test transmissions on March 18th there was no carrier. The SNR was better than 30 dB at that time! See http://www.drmrx.org/forum/showthread.php?s=&threadid=1012&pagenumber=1 (df9rb)
- The frequency allocation is quite improper; during the evening/night the signals on 171 and 183 getting stronger resulting in many audio drop outs of Deutschlandradio
- Yesterday was a thunderstrom. Up to 3 hours later there were a lot of audio drop outs. I could not hear any conspicuous noise by lightnings listenig to the analogue DRM signal but DRM reacted very sensitive.

Bernd, DF9RB

Paul Widger

03-09-2005, 13:50

Good reception here today.
When there is no thunderstorm static reception good
except for 2 hours after sunset due to 180khz interference.

simone

03-09-2005, 18:57

Hi all,
good results this morning in Berlin, see attachment
73, Simone

df9rb

04-09-2005, 07:13

Hi all,

here a mostly unattended overnight log. Until 23:00 it is not a pleasure to listen to Deutschlandradio on 177 because of many audio drop outs. Surprisingly the loop antenna has to be redirected a little compared to the optimized day direction for any audio decoding at all. At the end of the log the loop was set back to the optimized day direction. Between 23:00 to 2:00 reception is perfect.

Bernd, DF9RB

FritzWue

04-09-2005, 08:34

The interruption and the dropouts this morning were transmitter problems, see Bernd's log for comparison.
I also have slightly different minimum settings to Saarlouis for my loop between evening and morning conditions.

FritzWue

04-09-2005, 16:27

Bernd DF9RB sent me his log so we can compare.
We see the same result and TX problems/ switching. :cool:

DRM-Fan

04-09-2005, 16:40

I've only just become aware of 177, how long has this tx been running ? Only getting about 7 - 9 db as I type this. I expect signal to shoot up later this evening...

FritzWue

04-09-2005, 17:20

When we look back through the posts here the tests began March 14, 2005 and then they restarted from August 23, 2005.

FritzWue

05-09-2005, 23:26

I can null 183kHz with the loop, but then 180kHz is the limiting interference in the evening here.

tacitus-ms

05-09-2005, 23:35

Without interferences of Europe 1 on 183 kHz Deutschland Radio from Oranienburg on 177 kHz becomes the best DRM station in Münster/Germany (50 km from the western boarder of Germany!). See sreenshot, you can see the increase of SNR when Europa 1 is switched off. The audio quality is amazing. But if Europa 1 is active, reception is only possible with a loop antenna. The loop has to be turned to the minimum level of Europe 1. Only then reception is possible the whole day.

Digger

08-09-2005, 18:26

Hi,

This afternoon I caught a rather weak DRM signal on 177 kHz with terrible QRM in French at 5 (6?) kHz up. The DRM transmission was in P-Stereo with SBR and 20.26 kbps.

A Data service "wir ueber uns" HVXC (8 kHz), 2.4 kbps and a News Journaline 0.96 kbps was also sighted.

Enclosed is the screen dump "wir ueber uns".

73s de
Terje

PS: Just for fun I took my old Schaub Lorenz Touring T60 and tried to null out the French station. Amazing result. Nulling out, that was.
However, the Local Oscillator was not stable enough to keep the DRM IF in shape...

FritzWue

10-09-2005, 07:40

A rainy night with thunderstorms, all passing by very closely, just did not have to pull the plug.

FritzWue

15-09-2005, 07:10

Overnight log:

Andreas

18-09-2005, 15:31

Hi!

Even without having a satellite bowl I can receive Deutschlandradio now on 6 ways:
via terrestric broadcast in AM, FM, DRM and DAB as well as via cable in FM and DVB-C.

Now I can guess which one of these will be abandoned first, AM or DAB ;) ?

Sound is pretty good in comparision to FM, however stereophonic effect is better audible in "real" stereo than in P-stereo.

My opinion is that the purpose of DRM on longwave will be mainly nationwide mobile reception (data channel to be used for traffic information).

73, Andreas

FritzWue

19-09-2005, 11:32

Originally posted by Andreas
My opinion is that the purpose of DRM on longwave will be mainly nationwide mobile reception (data channel to be used for traffic information).
73, Andreas

From my experience up to now mobile reception is not good in crowded areas on longwave, too much interference.

Here is my result this morning with the loop under the roof and the minimum exactly to Europe1:

Andreas

19-09-2005, 19:52

Hello Fritz and all,

at the moment DLR is broadcast in Germany by a lot of low power FM transmitters , which do not fully cover all sectors of the Autobahn. So sometimes when travelling around I switch to LW (in AM) to listen uninterrupted.

But I must admit, while my car radio, with unknown type of antenna (is it the rear window heating used as a loop antenna???) is capable of receiving DLF's Aholming transmitter which I guess is at least 700 km from here, it would'nt work at all in DRM. Every tunnel, every bridge you underpass, powerlines of street cars, ignition systems of other cars and so on would lead to severe and non-acceptable drop outs.

So is it aimed only at hobby skippers and businessmen, listening to their portable receivers in a hotel room far abroad?

On the other hand LW is much user friendly than SW. Don't worry about Moegel & Dellinger
;) , just switch it on..............

(I dont post todays log, looks like yesterdays)

73, Andreas

FritzWue

19-09-2005, 20:46

Originally posted by Andreas
On the other hand LW is much user friendly than SW. Don't worry about Moegel & Dellinger
;) , just switch it on..............

Hi Andreas,

in town mobile reception is much better on shortwave than on longwave:
Shortwave is a lot stronger under bridges and there is less interference from electrical noise which is usually much weaker at higher frequencies.
..and the whip antenna is longer/better in relation to the wavelength.

df9rb

22-09-2005, 19:11

Here a report from Braunschweig with my Sangean and the built in ferrite antenna. I tried also 855, 693 and 1485 - no reception!

Bernd, DF9RB

FritzWue

25-09-2005, 06:29

Overnight log.
Europe 1 Saarlouis on 183kHz is in the south of my location.
I still wonder why the loop's minimum to Europe 1 is about 10° more to the east late at night compared to what I get next morning at daylight.
My antenna is in the loft, so it is not turned by wind or birds. :confused:

df9rb

25-09-2005, 08:53

Observation from FritzWue:
I still wonder why the loop's minimum to Europe 1 is about 10° more to the east late at night compared to what I get next morning at daylight.

The same at my location with the ALA1530!
I have the feeling (could not confirm it until now) that the
reason are the stations on 171 kHz. They are getting stronger during nighttime. The optimum for 177 is then different to daylight time were it is the best to minimize Europe1. The optimum during nighttime is then the direction with maximum signal towards Oranienburg. But as I wrote in the first sentence "its my feeling".

Bernd, DF9RB

FritzWue

30-09-2005, 18:21

Good reception with the loop antenna at daytime, interference getting stronger in the evening.
I think Bernd's feeling could be right explanation.

FritzWue

01-10-2005, 16:07

Stable daytime reception with the loop's minimum to Saarlouis.

simone

02-10-2005, 07:22

Hi all,
good results when the interferer is not on air at 2308- 0200, see attachment
73, Simone

df9rb

02-10-2005, 20:53

Hi all,

in evening/night hours I can observe very often selctive fading on 177 kHz. The break-in is moving very slowly (sometimes 30 minutes/1 kHz) with up to 20 dB depth over the DRM signal. (see attachment) The combination of interfering stations and this long enduring fading makes reception nearly impossible here in East Bavaria.

Bernd, DF9RB

simone

03-10-2005, 06:35

Hi all,
good results without the interference, see attachment
Simone

FritzWue

03-10-2005, 07:14

Overnight log.
The optimum loop position indeed seems to be where the sum of the two interferers on 180kHz and 183kHz is lowest.

FritzWue

08-10-2005, 07:16

Overnight log.
Interference in the morning mainly from 183 kHz.

simone

09-10-2005, 05:12

Hi all,
not as good as usual last night, see attchment
Simone

df9rb

09-10-2005, 07:33

Hi,

between 16:30 to 06:30 not useable exept the 2 hour when Europe1 is off air. At 7:30 the "daylight SNR" of >26 dB was reached. It would be interesting to know what would be without the center carrier. During test transmissions in spring the SNR was better than 30 dB without this carrier.

Bernd, DF9RB

FritzWue

11-10-2005, 06:48

At my location the overnight result depends a lot on choosing the right compromise position for the loop antenna.

FritzWue

15-10-2005, 05:25

Still high audio framerates at low snr:

carknue

18-10-2005, 18:55

Perfect decoding between 23:10and 2:00 UTC with new FhG DRMSWR.

carknue

20-10-2005, 18:07

Again quite good results in the period of silence on 183khz. There is still interference from 180 khz, but that does not cause to much damage.

FritzWue

21-10-2005, 07:37

Good audio quality, high level content:

carknue

21-10-2005, 18:19

Pretty good reception also this night. DRM seems to work very well on LW, if the frequency is clear.

simone

22-10-2005, 09:01

Hi all,
not so good last night, see attachment
Simone

carknue

22-10-2005, 11:13

Again quite good results in the night.

FritzWue

22-10-2005, 20:48

Good results at daytime with the loop antenna:

FritzWue

23-10-2005, 08:05

From night to daytime propagation:

FritzWue

01-11-2005, 08:52

Loop's minimum to Saarlouis on 183kHz, but TRT on 180kHz is the second problem.

FritzWue

07-11-2005, 11:56

Very reliable daytime reception with the loop's minimum to Saarlouis:

FritzWue

12-11-2005, 13:44

Another 100% day:

FritzWue

13-11-2005, 22:09

With bad condx on shortwave and 1296kHz not working this was the only good DRM signal at that time here.

FritzWue

20-11-2005, 07:27

Overnight log.....quite good with minor problems late in the evening.
The Journaline Dataservice is working fine too but since months shows the same content.

carknue

26-11-2005, 10:03

Perfect reception during the interference free hours in tha late night.

Andreas

27-11-2005, 09:20

A typical overnight log,

- I don't know what caused the two big drops

- minor dropouts are depending on my and my neighbours "electric" activities

- SNR can't be higher, because my receiver is really deaf on long wave

- sound quality is much better than Deutsche Welle!

- interference from Europe 1 and/or TRT 1 is clearly visible but does not really disturb reception at my QTH

I am still waiting for conversion of Deutschlandfunk Neumuenster on 1269 kHz to DRM
;)

midre

27-11-2005, 10:58

Hi DRMs,

possible time to get decoded audio, here at my place, is only between 0:00 and 3:00 am ( ....caused by strong co-Channel)

regards, Michael

DRM-Fan

28-11-2005, 00:54

Unusually strong reception tonight for me with the Terk MW loop. Shame it's just a copy of 1440

dk8cb

28-11-2005, 01:07

Originally posted by DRM-Fan
Shame it's just a copy of 1440
:confused: :confused: :confused:

Why should it be a copy of 1440 kHz?
177 kHz= DLF
1440 kHz = RTL Radio

Something totally different, in any way!

Roland

DRM-Fan

28-11-2005, 02:35

Originally posted by dk8cb

:confused: :confused: :confused:

Why should it be a copy of 1440 kHz?
177 kHz= DLF
1440 kHz = RTL Radio

Something totally different, in any way!

Roland

Well yes different ID's but same music etc on 1440 and 177 ? It is late evening onwards anyway

Telspace

28-11-2005, 15:30

The implementation of the transmitters of Europe 1 in Sarrelouis was decided (I think) in the early 50's when the State of Sarre voted to stay within the Federal German Republic. (Compensation ?). Furthermore, frequency changes have occured in the past due to strong complains.
Although this is a "periferic" station, Europe 1 has always been "controled" one way or the other by the french goverment. BTW the State of Sarre has some financial interests in this radio station ? Don't you think that within the European concept, one day, the transmitters should be moved to France, to avoid those interferences? RMC, another "periferic" station has all of its MW/LW/SW transmitters on the french soil and nobody complains.
This is an opinion off-course.

carknue

28-11-2005, 19:55

@Roland
On 177khz is Deutschlandradio Kultur not DLF. I think that DLF is only on 855khz and 729 khz.

@DRM-Fan
Same music on DKULTUR and RTL Radio...??? Not really?!? The difference cannot be bigger between those two stations.:D

The worst results so far I got on this frequency this night. But still above the 98% mark.

DRM-Fan

29-11-2005, 00:34

Originally posted by carknue
[B@DRM-Fan
Same music on DKULTUR and RTL Radio...??? Not really?!? The difference cannot be bigger between those two stations.:D
[/B]

OK oh well in that case I must be getting bad break through from 1440, that would explain it, I thought 177 was a bit strong for a MW loop:o :o

carknue

29-11-2005, 19:15

This night nearly perfect results as usual on this frequency during the break of the mighty 183;)

dk8cb

30-11-2005, 00:32

Originally posted by carknue
@Roland
On 177khz is Deutschlandradio Kultur not DLF. I think that DLF is only on 855khz and 729 khz.

Reception on 177 kHz is extremely bad here in Munich, so bad that I never listen on this frequency, so excuse my ignorance.
BTW: I'd rather prefer Aholming to switch to DRM but I think, this won't happen since its AM service is still an important one with so few FM frequencies of either DLF or DLR here in the south.

Roland

carknue

30-11-2005, 19:22

The 177khz will be switched back to analouge from tomorrow on, only some hours in the night will stay for DRM. I will not comment this.

Nearly perfect results again this night.

df9rb

01-01-2006, 10:03

Hello,

New Years change is a good opportunity to listen radio at 2 o clock (local).

Happy New Year!
Bernd, DF9RB

FritzWue

04-02-2006, 11:27

This transmission really is a little too late for me, so I could not optimize the loop's position when Saarlouis switched on again.

Jos

17-02-2006, 13:10

Sorry this is a error.

Kind regards.

Jos.

FritzWue

21-02-2006, 07:51

Unattended log, loop setting not optimized:

carknue

19-03-2006, 09:16

Hi,

first time log of this transmission with fieldstrength. Very stable and strong signal. Perfect decoding. I'm really looking forward to some more and longer DRM transmission in the long wave band. Seems to work much better than medium wave.

Andreas

01-04-2006, 11:20

When logging Oranienburg last night I mistuned my Ferrite Antenna copmletely. Thus I got a quite stable signal, but no audio. Shame on me! :mad:

So I post this only to remind you, that DRM emission now is broadcast from 0:00 to 3:00 UTC (i.e. 2:00 to 5:00 CEST)

Andreas

12-04-2006, 17:18

..and here is a complete log from last night.

Some minor dropouts are due to my deaf equipment and some local noise.

Sound is great! Unfortunately nobody (except some mad DRM-DXers, suffering from insomnia) does hear it.:rolleyes:

Andreas

01-05-2006, 07:48

Here is another log. It is better compared to my last log because I moved the ferrite antenna as far away from the laptop as possible. Some further dBs could have been gained by finetuning the antenna's direction - but not during an unmanned log ;) .

FritzWue

30-05-2006, 05:26

Unattended log, loop setting not optimized:

FritzWue

31-05-2006, 05:38

A little better than last night with the loop in nighttime position which is with the minimum a little more to the southeast compared to daytime here.
Last night I thought my setup might have a problem, but this time the same problem with the audio: A loud cyclic low frequency noise at about 2Hz. Can someone confirm this? :confused:

FritzWue

15-08-2006, 05:35

Unattended overnight log:

FritzWue

21-08-2006, 08:41

Unattended log, good result.
Frequency stable selective fading on the signal when I started logging manually.

FritzWue

29-08-2006, 05:21

Started manually, then went to bed. Good audio quality:

f1tay

29-09-2006, 00:42

Very good reception of Deutschlandradio in stereo at Paris.
Daniel

carknue

28-10-2006, 07:36

Very good reception last night during the break of 183 khz.

carknue

02-11-2006, 18:26

Perfect results last night.

carknue

03-11-2006, 18:40

Again quite good last night.

f1tay

04-11-2006, 02:23

At 2h06 QRM by MEDI 1 (Morocco) and station in russian on 171 kHz.
Daniel

carknue

15-11-2006, 19:00

Perfect last night.

carknue

16-11-2006, 18:24

Perfect last night

f1tay

18-11-2006, 01:43

Reception at Paris.

Digger

23-12-2006, 16:20

Last night I tried to log 177 kHz, but due to a miss in the scheduled event the PC shut down premature. I got about 30 minutes, some of it looks pretty good though.

Digger

24-12-2006, 07:43

Last night's 109 minutes unattended log. Not all of it was as good as I expected.

simone

25-12-2006, 09:46

Perfect results last night.
Simone

simone

26-12-2006, 10:22

Pretty good results again last night.
Simone

f1tay

28-12-2006, 02:43

Very good reception this night at Paris.
Daniel

simone

30-12-2006, 07:16

Perfect results last night.
Simone

simone

31-12-2006, 14:46

Perfect again last night.
Simone

simone

01-01-2007, 14:40

...and again perfect results last night.
Simone

simone

06-01-2007, 15:24

Excellent results last night.
Simone

simone

13-01-2007, 11:12

Great results as usual.
Simone

simone

14-01-2007, 13:12

Good results as usual.
Simoen

simone

20-01-2007, 11:11

Some Tx problems last night causing the dropouts, otherwise good results again.
Simone

simone

21-01-2007, 07:02

No problems last night.
Simone

simone

26-01-2007, 07:48

Several sync losses last night.
Simone

simone

28-01-2007, 08:42

No problems and perfect results last night.
Simone

simone

04-02-2007, 20:26

Great results last night.
Simone

simone

17-02-2007, 06:47

Lower and more instable SNR than usual.
Simone

simone

18-02-2007, 07:26

Quite good last night.
Simone

df9rb

18-02-2007, 09:02

Hello,

a short log before going to bed......
No carrier in the center anymore. The 2nd attachment shows deep selective fading which lasted several minutes.

Bernd, DF9RB

carknue

24-02-2007, 08:04

A perfect reception this night.

simone

27-02-2007, 15:23

Good results last night.
Simone

simone

04-03-2007, 07:09

Perfect results last night.
Simone

simone

24-03-2007, 07:07

Great results last night.
Simone

simone

30-03-2007, 09:12

Lower SNR from 0200 last night.
Simone

simone

31-03-2007, 05:30

Problems in the last hour.
Simone

Digger

01-04-2007, 07:13

An unattendet log. The first two hours were perfect. Then (probably) 182 kHz started. That was the end of the fun. My 11 meter wire that runs North-South is good for reception on Long Wave, but in case of 177 kHz we obviously need a directional antenna.

simone

07-04-2007, 05:50

Again problems in the last hour.
Simone

FritzWue

09-04-2007, 05:58

Unattended log with nondirectional T-antenna, very similar results here:

simone

14-04-2007, 04:51

Similar results again last night.
Simone

simone

20-04-2007, 06:51

By turning the loop antenna when I had to be up early a few days ago, I could improve results, no dropouts from 02:27.
Simone

simone

21-04-2007, 05:16

Not too bad concerning decoded audio in the last hour with the loop antenna in the right position.
Simone

simone

29-04-2007, 04:44

A big drop in SNR when interference started, but no dropouts with the antenna in the right position.
Simone

simone

01-05-2007, 04:20