7265 kHz DW-Sines/Wertachtal

[df8uo]

Find attached my log from this morning. When Sines is switched off SNR drops significantly
73, Daniel

[FritzWue]

My morning log, reception was better after switching TX around 06:53 UTC.
The transmitted time service is 53 seconds late here after decoding on a 3GHz P4.
Is this the accumulated delay? That much?

EDIT: By the way, saw this too late, peaking 41.0 dB SNR with DRT1!

[FritzWue]

One more thing:
Here are two screenshots of 7265kHz at around 06:30 UTC.
There is a visible carrier on the signal but no decrease in SNR even when under 20dB. Is this insufficient carrier suppression or what?

[Andreas]

Hello Fritz and all other DRM experts!

Now I'm totally bewildered! On its homepage DW says, that on Tuesday they make use of Sines only? Now when I'm writing this message, text information states, that Wertachtal is on air.

My both logs cover too short a period round the switching point (which can be clearly heard and seen), to give any further hints. Besides that reception was quite good yesterday. Neither the switing, supposed there was one, nor the shortening of my telescopic antenna rod, which was done WHILE LOGGING in order to fit it under a sunroof had significant influence.

73, Andreas

[FritzWue]

Hi Andreas,

looks as if this is still an experimental service!

Maybe the labels are not always correct, and the engineers may perhaps use different settings from what is written in their schedule.
In my and i.e. Daniel's log we saw them switching the last days around 08:53 UTC, but maybe you in Hamburg are just at the right distance for equally good reception from both transmitters at Wertachtal and Sines.

[df9rb]

Hi,

reception improved when Sines started at 7:05.

Bernd, DF9RB

[Andreas]

Hi,

stable conditions here day by day, and once again but slight differences, when second Tx is switched on and off.

If it works like this also some 230 km ESE of my QTH they need not be afraid of the IFA



@Fritz: with 20,96 kbps and P-Stereo they come near to FM sound..........

73, Andreas

[CT4RK]

DRM some tests

Hi all
After some time that I didn`t read the forum, I`m back for a short time because I will be on holidays next month.
Thanks for your reports. It is normal that there are some perturbations in our transmissions, because since the last 2 weeks we are upgrading the complete DRM system, hardware and software, removing the old encoders and installing the new ones, without stopping the main schedule. It is hard work, but all is runing OK. Please be patient. In the next month, we are able to serve you with DRM signals under the best conditions.

73 from CT4RK

Carlos Mourato

Sines

[FritzWue]

Re: DRM some tests

In the next month, we are able to serve you with DRM signals under the best conditions.

Seems to be true.
Unattended log,
skyhigh SNR in the morning before 08:00UTC peaking 41.9dB!

[Per]

Sept 11

Hi,

The higher frequencies are still affected by bad propagation, so I gave 7 MHz a try.
Very good result from DW. Time: 11:09 - 12:00 UTC. CDA: 99%.

[mitajohn]

Hi all,

A good result for about 70 mins this morning. After this the reception changed to a very bad one.

John.

[FritzWue]

MOBILE RECEPTION

Good results from 48712 Gescher to 48135 Muenster:

[Bob]

Hi,

Interesting results - a clear dropout at 09:00 when I assume Sines stopped transmission. SNR looks lower after 09:00 but decoding rate looks unchanged. Unfortunately my reception was unattended at that time.

regards
Bob

[Owdjim]

7265 kHz in Wellington

Hi All

Log for 7265 kHz for today. Journaline data service was decodable for a while too.

Cheers, Chris

[Digger]

11th October

Hi all,

This morning the signal here was extremely strong. 100 µV up to 2 mV on the Antenna connector. The SNR was also very good . A short break at 09 UTC was noted.

73

Terje