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Search: Posts Made By: maxpower
Forum: German Speaking Area 09-06-2010, 11:29
Replies: 112
Views: 42,995
Posted By maxpower
Hallo ihr beiden! Ich habe mich bislang nicht...

Hallo ihr beiden!

Ich habe mich bislang nicht mit Stereo-AM beschäftigt, aber zumindest kann ich bestätigen, dass man oft beim einschalten von Stereo AM auch bei Mono-Sendungen/Sendern den Eindruck...
Forum: Links 08-06-2010, 20:40
Replies: 99
Views: 46,201
Posted By maxpower
So it seems that this has been changed from <...

So it seems that this has been changed from < 1.7 to the newer versions?! :)

I've looked into all versions that I have (1.3, 1.70, 1.71) and they all used a fft library fft.dll and no kissfft.dll...
Forum: Links 08-06-2010, 18:56
Replies: 99
Views: 46,201
Posted By maxpower
Hello Ataliba! I didn't get the spark version...

Hello Ataliba!

I didn't get the spark version 2.5. until now. :-( But normally there is a fft.dll inside the spark directory folder. Is it missing in your installation?

73, Stephan
Forum: Links 06-06-2010, 14:19
Replies: 99
Views: 46,201
Posted By maxpower
Hmm, just saw that my older version of DRMlogplot...

Hmm, just saw that my older version of DRMlogplot doesn't plot SNRs higher than 40 dB?! So I downloaded an update (thanks Digger!) and here's the plot for my last test with SNR > 52 dB.

73,...
Forum: Links 05-06-2010, 09:41
Replies: 99
Views: 46,201
Posted By maxpower
Ok, now it's time to find out where the 12 dB...

Ok, now it's time to find out where the 12 dB went, that I lost in the tests yesterday.

I made some aditional tests, PC internal (Spark to windows mixer to dream), PC to PC (connected via PC 1 line...
Forum: Links 04-06-2010, 18:19
Replies: 99
Views: 46,201
Posted By maxpower
A little bit more testing with Spark 1.7.1.:...

A little bit more testing with Spark 1.7.1.:

Changing Transition bandwidth from 500 to 5000 (maximum) gives a much better decoding SNR from Spark direct fed into dream (from about 55 dB (@500) to...
Forum: Links 04-06-2010, 16:20
Replies: 99
Views: 46,201
Posted By maxpower
Here are the next two screenshots

Here are the next two screenshots
Forum: Links 04-06-2010, 16:20
Replies: 99
Views: 46,201
Posted By maxpower
Hello to all of you! I've written to Michael...

Hello to all of you!

I've written to Michael Feilen. So lets wait and see. :)

In the meantime I played a little bit with DRM 30 on Spark modulation with my small home brewed I/Q Mixer which is...
Forum: Links 03-06-2010, 11:33
Replies: 99
Views: 46,201
Posted By maxpower
Hello Simone, Bernd and Wolfgang! Thanks for...

Hello Simone, Bernd and Wolfgang!

Thanks for your tipps. Is it maybe the version of spark that makes the difference?! I use Vers. E1.7.1.. There seem to be differences in which parameters can be...
Forum: Links 02-06-2010, 19:03
Replies: 99
Views: 46,201
Posted By maxpower
Hello Ataliba! From what I understand, you tried...

Hello Ataliba!

From what I understand, you tried the Wav File for Sodira which worked, but your own files doen't?!

I played a little bit with spark and I think I've a similar problem, too. Standard...
Forum: Reception Results - Recent Posts 08-03-2010, 18:14
Replies: 29
Views: 7,203
Posted By maxpower
Here's my report from the afternoon. Not bad,...

Here's my report from the afternoon.

Not bad, the Mode A times are much better than Mode B.

73, Stephan

RX is the new version of the Pappradio, which is finally ready :-)
Forum: Reception Results - Recent Posts 08-03-2010, 13:45
Replies: 29
Views: 7,203
Posted By maxpower
I had to put the attenuator in more and more...

I had to put the attenuator in more and more because of a monster AM Signal on 15700 kHz, which is at least 90 dB ahead of the noise. The Bonaire signals look very small behind this transmission....
Forum: Reception Results - Recent Posts 08-03-2010, 12:37
Replies: 29
Views: 7,203
Posted By maxpower
Thanks for the info, Jan Peter! It's really nice...

Thanks for the info, Jan Peter!
It's really nice to compare. AM Carrier is about 10 - 15dB stronger than the DRM signal.


73, Stephan
Forum: Reception Results - Recent Posts 08-03-2010, 12:21
Replies: 29
Views: 7,203
Posted By maxpower
Nice signal here in the northwest of germany!...

Nice signal here in the northwest of germany! About 20 dB SNR, but a lot of fading.

Different Modes are beeing testet, best for this moment is Mode A 18 kBit. I put it on my Internet Audio Stream...
Forum: Reception Results - Recent Posts 27-08-2009, 07:20
Replies: 49
Views: 11,218
Posted By maxpower
Yes, indeed! Very good setup today with Mode A...

Yes, indeed!

Very good setup today with Mode A and 14 kBit AAC+. And good conditions at shortwave, too. SNR went up to almost 30 dB at my place!

This all resulted in >99% correct decoded audio from...
Forum: Reception Results - Recent Posts 05-08-2009, 07:24
Replies: 31
Views: 14,485
Posted By maxpower
Very weak herewwith the 19m Deltaloop, too. No...

Very weak herewwith the 19m Deltaloop, too. No decoding possible.

Does anybody know the source of this transmission today?

Stephan
Forum: Reception Results - Recent Posts 05-08-2009, 07:20
Replies: 49
Views: 11,218
Posted By maxpower
Hi all! Better here in the Northwest of Germany....

Hi all!

Better here in the Northwest of Germany. Bitrate is a little bit to high for stable decoding but over 90% deconding in the last 45 minutes of transmission is not bad for not beeing in the...
Forum: Reception Results - Recent Posts 17-06-2009, 23:13
Replies: 244
Views: 47,713
Posted By maxpower
Apart from the first 5 Minutes very good...

Apart from the first 5 Minutes very good reception.
20.05 - 22.00 99.94% correct decoded audio.


Stephan
Forum: Reception Results - Recent Posts 17-06-2009, 21:23
Replies: 244
Views: 47,713
Posted By maxpower
Hi all! Good reception at my place yesterday...

Hi all!

Good reception at my place yesterday evening, too.
I don't know about the two dips in reception. :confused:
99.77% correct decoded audio and an average SNR of 17 dB. Thats ok. :-)

Stephan
Forum: Reception Results - Recent Posts 17-06-2009, 21:18
Replies: 162
Views: 23,085
Posted By maxpower
Hi all! Very nice signal here at my place today....

Hi all!

Very nice signal here at my place today. SNR looks a little bit strange but 100% Audio and average SNR of 33.53 dB give a perfect result. :cool:

Stephan
Forum: General Topics 17-06-2009, 09:53
Replies: 44
Views: 11,505
Posted By maxpower
You try to betray me (us) with this screen :mad:...

You try to betray me (us) with this screen :mad:

With this bitrate (23 kBit) at that low SNR (15dB) + extra Text or Multimedia-Services (xxkBit ?) in a 9 khz channel you wouldn't get any decoding...
Forum: General Topics 17-06-2009, 09:31
Replies: 304
Views: 117,669
Posted By maxpower
Hello People! I don't think it's worth to...

Hello People!

I don't think it's worth to discuss with him anymore. He only wants to complain.

He complains that Air India would be unm´listenable while others have no problems with listening to...
Forum: General Topics 16-06-2009, 21:26
Replies: 304
Views: 117,669
Posted By maxpower
I would like to see BBC/DW to broadcast at lower...

I would like to see BBC/DW to broadcast at lower bitrates as well. But - at my place - I've no problems with co channel qrm at that frequency.

So what shall I say.

I'm in the target zone and it...
Forum: General Topics 16-06-2009, 20:46
Replies: 304
Views: 117,669
Posted By maxpower
Hello? Is this really new for anybody here? Every...

Hello? Is this really new for anybody here? Every MW (Evening-) User and especially MW-DXer know about these facts (and use them) for 10th of years.

Ask the ERF Listeners that know the 1467...
Forum: General Topics 16-06-2009, 16:59
Replies: 304
Views: 117,669
Posted By maxpower
80 Watt ERP! Rubbish! HCJB, 15280 kHz, 5 -...

80 Watt ERP!




Rubbish!

HCJB, 15280 kHz, 5 - 7 Hops, Mode A, 4 kW, simple Rhombic antenna -
take care of Modes, Bitrates, Propagation and uncompressed input as Broadcaster and it works like...
Showing results 1 to 25 of 478

 
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