View Full Version : 7320 kHz (BBC WS from Rampisham)
Hi,
good reception with the exception of one longer dropout during which a noise-like signal slowly moved across the spectrum. It may have been of local origin but who knows.
No audio clicks today.
Roland
Good reception with some local interference.
I also tuned in again later without logging and noticed a short period with extremely weak signal which seemed to be caused by an ionospheric disturbance since the signal later regained its normal strength.
Roland
Hi all,
strong signal all day, good results, see attachment
Btw I also noticed the period with a very weak signal yesterday afternoon, which Roland mentioned above.
73, Simone
Hi all,
almost perfect again. The two audio dropouts at the same time as in Simones log.
73, Daniel
Hi,
here is my result. At the time of the largest dropout, I watched the DRM signal disappear completely for a brief moment.
Roland
Hi Daniel and Roland,
I did not comment on the two dips, as I suspected these were breaks for antenna switching, so normal operation and no Tx fault as they occured just before the top of the hour or half hour.
73, Simone
mitajohn
29-05-2005, 11:28
Hi all,
Faint signal from BBCWS this rainy morning.
John
Not bad but not perfect either.
Roland
Hi,
not a strong signal and some local interference from a switchmode power supply.
Roland
Hi,
transmission started with a carrier and the DRM signal appeared a bit too late. Signal became a bit weak today during the course of my listening period.
Roland
Hi,
again a delayed start.
Perfect reception from then on.
Roland
Hi all,
a very weak signal at 1210- 1235, quite good for the rest of the transmission
73, Simone
Hi,
not a strong signal today. Flevo came in much stronger.
Roland
Hi all,
signal got weaker in the last hour, some dropouts then because of a co-channel interferer, see attachment
73, Simone
Hi all,
11h00 -14h00 almost perfect here.
73, Daniel
Hi,
heavy problems with strange interference from an unknown and unidentifiable signal between 7322 and 7324 kHz which ruined reception completely after 14:28 UTC.
Roland
Hi,
today, there was a period with weak signal after which the signal became really strong again.
Roland
Hi all,
no problems with interferences in the last hour today, see attachment
73, Simone
Hi,
not bad today.
Roland
Hi all,
good results today, see attachment
73, Simone
Good reception in Munich as well.
Roland
Today, I've got only a report covering a short period.
Roland
Hi,
Rampisham's signal was weak today so that noise pulses or other interference sometimes caused very brief dropouts as can be seen on the screenshot. No problems otherwise.
Roland
Hi all,
one of my worst results on this transmission, a very weak signal at 1200-1230, also some dropouts due to the "exploding spectrum problem", attachment also shows nearly perfect results yesterday
73, Simone
Hi,
as already observed on a few other DRM transmissions from other stations (but not on all!), unwanted sidebands may also be observed on this signal. See attached waterfall plot showing a propagation signature on these sidebands that is equal to that of the primary DRM signal.
The unwanted sideband power seems to be suppressed by about 37...40 dB.
Roland
Hi,
since I had the waterfall plot already on, I just had a closer look at it after an audible dropout had occured.
I was amazed about what I saw. Have a look at the attached plot.
Seems very likely that it is TX-related.
Roland
Hi,
not bad, but not completely perfect. I have seen days with much better signal strength.
The first droput shortly before 10:30 corresponds to the strange spectrum that can be seen in my previous waterfall screenshot.
Roland
Hi all,
signal was much stronger than yesterday, also less Tx problems, the only dropout was probably my fault
73, Simone
Hi all,
find attched my log for BBC this afternoon. For comparison purposes i switched my dipole antenna roughly every half hour between my DWT (blue/red curve) and FT757GX (green/yellow curve). The DWT was connected via my antenna matchbox (Leader LAC895) to the antenna. As you can see the FT757 is only a few dB's better.
73, Daniel
Hi,
an unknown signal in the centre of the DRM signal completely ruined my reception after about 14:30 UTC.
Good otherwise, however, I again watched one occurence of this effect (http://www.drmrx.org/forum/attachment.php?&postid=18081), which is quite likely the same as what is already known as the "exploding spectrum".
Roland
Hi all,
strong co-channel interference today in the last half hour, dropouts at the beginning were my fault
73, Simone
Hi all,
perfect the whole time, ecxept the las 30 minutes.
Hi,
good reception but signal was not strong.
The dropout shortly before the 11:00 UTC news was caused by a TX fault which again looked like this (http://www.drmrx.org/forum/attachment.php?&postid=18081) (exploding spectrum).
Roland
Hi all,
good conditions but the exploding spetrum occured a couple of times today (seems to occur again more frequently since last Friday); also I had to stop logging for 20min (1113-1133), sorry, later there was a Tx break for a few minutes just before 1200, see attachment
73, Simone
... and perfect reception in the last hour, no problems with an interference like yesterday, see attachment
73, Simone
Hi,
today, signal was weak. I did not notice any TX problems or clicks (except from the regular one during the time signal).
Roland
Hi all,
pretty good results although the signal was not very strong and relatively low SNR, see attachment
73, Simone
Hi,
today, signal strength went up and down by at least 30 dB.
The click during the time signal was still there.
Roland
Just a short comment today:
The clicks during the time pips were still present when I listened.
Roland
Hi all,
good results today, not sure what caused the few dips, see attachment
73, Simone
Hi all,
a weak signal today at the beginning, signal got stronger from 1320, but before lots of dropouts when I was listening in the car (not in the logfile), see attachment
73, Simone
Hi,
not a strong signal today.
The dropout at 12:51UTC was caused by a loss of DRM signal, see attached report. The continuous signal on the left side of the DRM signal is a harmonic of the switching frequency of my DSL modem's power supply.
Roland
Hi all,
signal strength was normal, good results, a few Tx related dropouts (1251, 1400) and always results from DRM SWR look a bit worse, see comparison
73, Simone
Hi,
signal became weaker over time. The dropout at 12:25 UTC was the result of a TX problem.
Roland
The attached waterfall plot shows how the TX problem at 12:25 UTC manifested itself.
Roland
Hi all,
strong signal and good results using the DWT (last hour FRG100), one short Tx break as Roland mentioned (not necessarily a Tx problem), see attachment
73, Simone
Hi all,
nearly perfect results all day using the DWT again, see attachment
73, Simone
Hi,
interestingly, two of the dropouts in my log seem to coincide with similar ones in Simone's log.
Roland
Hi,
very good reception despite the signal not being strong.
Roland
Hi,
today, there were similar problems as on 1296 kHz last night albeit not as long-lasting.
Reception was good but there were interruptions after which invalid data seemed to be transmitted. The spectrum looked nice but the MSC indicator was red or grey and audio returned only after a while.
See attached waterfall plot showing the interrruptions.
Roland
And here is my 1 hour report.
Roland
Hi,
here is today's report.
Roland
Hi,
good reception today, however signal was low in strength at the beginning but it constantly got stronger over the course of my logging period.
Roland
Hi,
an excellent result today.
Roland
Hi all,
pretty good results today, see attachment
73, Simone
Hi,
just to let you know that during July the BBC may occaisionally broadcast alternative content on the DRM short-wave broadcasts, so if you hear programmes other than those you expect, its not a fault.
regards
Julian
Hi all,
perfect. Log attached
73, Daniel
Hi all,
great results again today, see attachment
73
Hi Julian,
would be great to hear Radio 1, 1Xtra or 6 Music on DRM:)
Hi,
no idea why my result looks so shaky, it was nevertheless perfect.
Roland
Hi all,
a weak signal today but still good audio decoding, see attachment
73, Simone
Hi,
today, at around 12:54 UTC, a strange interference signal appeared and moved very slowly across the band and over the DRM signal, see attached waterfall plots.
Roland
Hi,
here is my report. Signal strength went up and down by perhaps 30 dB at the end.
The two large dropouts were caused by interference of the sort described in my post above.
Roland
Hi all,
stronger signal than yesterday, I did not notice the problems with the interference in my location that Roland mentioned, good results except one dropout at 1436 due to fading , see attachment
73, Simone
FritzWue
03-07-2005, 15:31
Good signal today:
Hi all,
a weak signal, good results except a short period with an interference causing some minor dropouts, see attachment
73, Simone
Hi,
reception was perfect but I only listened for 1.5 hours.
Roland
Hi,
noise pulses prevented a 100% result.
Roland
Hi all,
a period with a weak signal at 1020- 1040, quite good after that, see attachment
73, Simone
Hi all,
no idea what caused the break at 1245, maybe a Tx problem (?), after the break the signal was stronger
73, Simone
Rampisham's signal was a bit weak today.
Roland
Hi all,
still not a strong signal but nearly perfect decoding, see attachment
73, Simone
Again a somewhat weak signal.
There was a short moment with "weird spectrum", only a few seconds after transmission had started.
Roland
Hi all,
a few minor dropouts due to a weak signal but no problem for listening, see attachment
73, Simone
Hi,
again a weak signal.
Roland
Hi all,
good results but again a weak signal, see attachment
73, Simone
Hi,
also a weak signal here and local interference.
Roland
Hi all,
again a weak signal but good audio decoding, see attachment
73, Simone
Hi,
sometimes, signal was a bit weak and there was some interference.
Roland
Hi all,
attached my result from yesterday (9.7). Almost perfect.
73, Daniel
Hi all,
interestingly Danielīs graph from yesterday shows the same 3 dips as mine, so probably these were Tx related.
Today a stronger signal but a strange 30 min period from 1120 maybe due to distant thunderstorms, around 1330 we had again thunderstorms, see attachment
73, Simone
Very stable signal. I'm not quite sure, but the few dropouts were caused by tx problems. The one at 12:00 and 13:37 can be seen also in Simones graph.
Hi all,
again a stable signal today, the first dropout probably a Tx problem
73, Simone
Hi,
again a weak signal.
At 10:08 UTC, the weird spectrum could be observed, see screenshot with waterfall plot.
Sorry for the bad quality but I had to keep the size of the attachment smaller than 104 kB, however the waterfall plot with its fine details consumes a lot of space, so I had to use a high compression factor.
Roland
Hi all,
some periods with a very weak signal today, like 1300- 1330 with nearly no audio decoding, the last hour however was pretty good again, see attachment
I also noticed the "exploding spectrum" problem again today.
73, Simone
Hi,
there was a loss of DRM signal followed by, what seemed to be TX retuning, shortly after transmission had started.
Signal was again a bit weak.
Roland
Hi all,
some periods with a very weak signal (S1!) probably due to the bad conditions, the exploding spectrum also occured again. Only a carrier when I started the log at 1200, maybe some switching or tuning at the Tx.
73, Simone
I noticed the exploding spectrum again at 10:15 UTC.
Signal was not strong but nevertheless reception was quite good.
Roland
Hi,
a weak signal, which completely disappeared at around 10:20 UTC like all other signals on 6, 7 and 9 MHz did.
Roland
Hi all,
conditions were a lot worse than the past days, see attachment
73, Simone
... at least in the last hour signal got stronger and audio decoding was possible again, normal conditions in the last 10min, see attachment
73, Simone
...here is the strange period from Jul12, which lasted only for half an hour
73, Simone
Hi all,
many problems today:
bad results because of thunderstorms in our area during the first 1.5 hours of my log, 11815 kHz gave slightly better decoding at that time, audio problems as already mentioned on the 11815 kHz thread, good SNR but no decoding when the P23S problem occured, and a problem at my end to get sync again at 1430.
73, Simone
Hi,
good reception over here during my listening period. Transmission started earlier than usual after a carrier (tuneup?) and a short interruption (for tuning?).
Roland
Hi all,
transmission started with the P23S problem and it occured several times during the transmission today. When I tuned in on the BBC WS transmission from Moosbrunn simultanously everything was fine.
Also I noticed, textmessages were not updated anymore.
73, Simone
When I tuned in on the BBC WS transmission from Moosbrunn simultanously everything was fine
Thanks Simone that's useful to know.
mitajohn
17-07-2005, 14:26
Hi all,
First report on BBC WS transmission.
John
Hi all,
quite strong and very stable. Do not know what caused the two dips.
Hi James and all,
no such problems as the past two days at Rampisham :),
similar good results as Carsten, the two dips probably were again the "exploding spectrum" (only saw the loss of sync).
It seems the BBC still have a text message problem, text messages were again not updated all day.
73, Simone
Hi all,
pretty good results today, text messages were working again
73, Simone
Hi,
not a strong signal today.
Roland
Originally posted by simone
It seems the BBC still have a text message problem
Hi all,
the text message problem will persist on the HF MDI feed until I can cut that part of the chain over to the new way of doing things. That will have to wait until after the alternative frequency functionality is in place.
Julian
Hi all,
some dropouts today, a weak signal and distant thunderstorms, see attachment
73, Simone
Hi,
at the start of transmission, Rampisham's signal was as strong as it used to be in winter. Later, signal strength decreased.
I don't know the reason for the dropout because I was away from the receiver at the time when it occured.
Roland
Hi all,
pretty good results today, donīt know what caused the 3 dips (maybe the exploding spectrum), see attachment
73, Simone
Hi,
not a strong signal again today.
Roland
Quite good but still a weak signal.
Roland
Hi all,
quite good result, with few dropouts.
73, Daniel
Hi,
there were again TX problems today. I noticed an interruption at 10:25 UTC and an exploding spectrum at 11:26 and at 13:19 UTC. There may have been a few additional such incidents, but I did not sit by the receiver for the whole time.
Signal strength was rather low throughout my entire logging period.
Roland
Hi,
the interruption at 10:25 UTC (see screenshot) looked very similar to interruptions sometimes seen on certain DW Sines transmissions.
Roland
Hi all,
good results despite a weak signal, I also noticed the exploding spectrum again, the dropouts just before 1400 were caused by myself changing antennas.
73, Simone
Hi all,
pretty good results today, mostly unattended log
73, Simone
Hi all,
not a strong but a very stable signal today, good results, see attachment
73, Simone
A weak signal and reception with a few dropouts.
Roland
Hi all,
again very stable conditions today, see attachment
73, Simone
Not a strong signal today but nevertheless quite good reception.
Roland
Stable signal as usual
73, Daniel
Hi all,
pretty good results again today, see attachment
73, Simone
Hi,
not a strong signal and some local interference.
Roland
Hi all,
I tuned in to the last 30min today in the Swis Alps, SNR stable at 25dB, just one (maybe Tx related?) dropout at 1458.
Btw same content on "Sports international" about the glorius (past) times of British athletes as exactly one year ago but worth listening again :)
73,Simone
Hi,
again not a strong signal.
Roland
Not a strong signal but quite ok.
Roland
Hi,
again a quite weak signal that improved in strength over time.
I don't know the reason for the dropouts, I was away from the RX at that time.
Roland
Hi all,
here are my results from Switzerland which I could not attach on 28th July, better than in the past when I went there.
73, Simone
Quite good reception. Signal went a bit weaker at the end.
Hi all,
perfect here this afternoon.
73, Daniel
Hi all,
a weak and unstable signal today, especially 1300- 1335, see attachment
73, Simone
Not a strong signal but still quite a good result.
Roland
Hi all,
again a weak signal today, see attachment
73, Simone
Hi,
not a strong signal today.
I also noticed the exploding spectrum at 10:23 UTC, perhaps there were other such incidents as well but I did not sit by the receiver all the time.
Roland
Hi all,
a 30min period with a very weak signal at 1230- 1300, quite good for the rest of the time, see attachment
73, Simone
Hi,
signal was again not strong, in fact it was weaker than Jülich beaming to the UK on 7145 kHz to which I listened immediately before.
Roland
Hi,
signal was again weak so that almost every noise pulse caused a very short dropout.
Roland
Hi all,
a weak signal for 10 min starting at 1400, not sure what happened, see attachment
73, Simone
Hi,
weak but still good.
Roland
Hi all,
quite good results, at the beginning a mix of mobile and stationary reception in the car, from 1330 using the DWT/longwire at home.
73, Simone
Perfect reception.
Roland
Hi all,
good results today, short dropouts at 1214 and 1223 probably Tx related, see attachment
73, Simone
I got the same dropouts at 12:14 and 12:23. Quite strong, stable and perfect reception.
Hi,
a weak signal today. A few dropouts due to interference.
Roland
Hi all,
strong and stable signal all day, pretty good results, see attachment
73, Simone
Hi all,
quite good today, Tx problems at 1344 and 1413, see attachment
73, Simone
Hi,
here is a short report.
Signal was weak at times and local noise spikes easily caused short dropouts.
Roland
Hi all,
strong signal today, the dropouts at 1116 and 1149 probably Tx related, see attachment
73, Simone
Hi,
not a strong signal over here.
I can confirm the dropout at 11:16 UTC already reported by Simone.
Roland
Hi all,
only a short report today, quite good results, Tx problem at 1353, see attachment
73, Simone
Hi all,
very stable conditions today, dropouts caused by Tx problems, see attachment
73, Simone
Only a very short report today.
Roland
Stable and perfect
73, Daniel
Hi all,
only a weak signal S3-S5 in Leipzig (no wonder considering the beam) but excellent results, sorry for the dropouts around 1330, which were my fault
73, Simone
Not strong, but quite good in Munich.
Roland
Not perfect but still quite good.
Roland
Hi all,
perfect decoding today, see attachment
73, Simone
Here also perfect decoding.
Not a bad result today.
Signal was a bit weak and there were a few instances, where local switching noise caused a dropout.
Is it just my perception or has the BBC recently changed the way audio is processed on this transmission? Audio quality is quite good, sounding rather punching.
Roland
Hi all,
strong and stable signal, perfect results, see attachment
73, Simone
Hi all,
very stable conditions today, see attachment
73, Simone
Hi,
I just watched the old exploding spectrum problem at 10:16 UTC.
See screenshot.
Roland
I forgot to post my report yesterday,
here it is.
Roland
Hi all,
pretty good results today, also 2 breaks during my logging period, see attachment
73, Simone
The same observation as already posted by Simone.
Roland
Hi all,
strong and stable signal today, see attachment
73, Simone
Hi,
some problems at the start, when the signal suddenly went down in strength, this was followed by a tune-up, quite ok afterwards.
No idea what caused the dropouts later as I was away from the receiver then.
Roland
Hi Roland,
in addition to the results which I posted above, I did not notice a dropout from 1100- 1500 today, so the dropouts in your results were not a problem at Rampisham.
73, Simone
Originally posted by simone
... so the dropouts in your results were not a problem at Rampisham.
Hi Simone,
I did not suggest that they were. ;-)
I had left my receiver switched on (while lying at the banks of the local river on this sunny day) to record the long-advertised programme about underground coal fires.
I did not have the bandpass on, if I would have switched it on, reception might have been better.
But the problem during the first minute of transmission was real. I watched it happen.
Roland
Hi all,
good results in the car today, a mix of mobile and stationary reception, only a carrier at 1315 causing dropout, see attachment
73, Simone
A short report on perfect reception.
Yesterday on 1296 khz, as well as today on HF, I did not notice any clicks in the time signal. Has the time pips click annoyance really been solved now?
We shall see.
Roland
Here is today's report.
Roland
Hi all,
great results today using the DWT, see attachment
73, Simone
Hi all,
some results with DWT and wire on balcony.
Hi,
signal was a bit weaker than usual at this time of the year. Has the beam direction already been switched to point to Berlin?
Some short dropouts from local noise clicks when signal was weak.
Roland
Hi all,
strong and stable signal today, perfect results using the DWT, see attachment
73, Simone
Hi all,
great results for 4 hrs this afternoon, see attachment
73, Simone
Hi all,
a weaker signal today, see attachment
73, Simone
Not a strong signal but perfect reception.
Roland
Hi all,
a mostly unattended log, so no idea what happened at 1123- 1128, see attachment
73, Simone
Hi,
reception was quite good until shortly before I switched logging off. Then, the spectrum looked not much different from before, there was no visible interference but the SNR was very, very low and only a few bits of audio could be decoded. No idea what it was. It rather looked like a problem at the encoder or the transmitter.
Roland
Hi all,
great results using the DWT/ longwire, see attachment
73, Simone
Good but not quite perfect.
Hi,
reception was rather bad today. Signal was weak and SNR showed more dips than usual, which I attribute not only to the weak signal. A similar weak signal gave better results on other occasions.
Has the beam been changed to point more towards Berlin for the upcoming IFA?
Roland
Hi all,
good results today, I think the dip at 1159 was Tx related, the others might be a "feature" of the DWT, see attachment
73, Simone
I'm not quite sure what happend between 10:25 and 10:45 UTC.:confused:
Hi,
there was a bit of on-channel interference towards the end of my logging period.
Roland
Hi all,
good results during the logging period, but I also noticed the problem that Carsten mentioned at 1025- 1045, looked quite the same in my location but I did not log at that time.
73, Simone
Hi all,
only an unattended log, a few minor dropouts, see attachment
73, Simone
As expected, BBC WS on 9470 kHz from Kvitsoy (Norway) is much stronger than the signal from Rampisham currently beaming towards Berlin on 7320 kHz.
Roland
New hours for 7320 kHz from today: 0830-1800 UT.
73, Klaus
Hi all,
a slightly weaker signal in the last 1.5 hours this evening, but still good results, also on 9470 kHz, see comparison of the last 45min attached
Sorry for the break in the log ;)
Although it seems to be the same datastream on both transmissions they are not synchronized as an MFN.
73, Simone
Hi,
just a short report on this transmission, since I was listening on 9470 kHz, where the signal was much stronger.
Roland
Hi all,
good results again, see attachment
73, Simone
Hi all,
good results also in the evening, but some Tx problems/ interruptions of the signal, btw no problems from Norway at that time. Problems continue on 5875 kHz now.
73, Simone
Hi Simone, there was a very large thunderstorm here yesterday and this caused (almost all) the problems.
From the transmitter control system there were the following breaks between the period 15:23:11 and 16:15:00
15:23:11 - 19 seconds
15:31:47 - 5 seconds
15:53:28 - 4 seconds
15:59:42 - 4 minutes & 5 seconds
16:04:12 - 4 seconds
16:11:58 - 5 seconds
16:13:54 - 3 seconds
etc there was a second major break at about 16:50.
There were no faults logged by the DT700 because they are not yet protected by UPS.
My colleage Andy thinks that one of the breaks you recorded could have been due to to the data problem.
James
Hi James,
thanks, that explains the problems yesterday.
Some (Tx related?) dropouts today, see attachment
Btw, the copnfiguration has been changed, lower bitrate and EEP today.
73, Simone
Hi Simone there were some transmitter trips at 1302 and 1312 but no alarms from the DT700!
James
Hi all,
not so good results in the car this evening with distant thunderstorms, last 1.5 hours mobile reception.
73, Simone
Hi all,
I tuned in the last half hour in Berlin yesterday evening with the Sony SW1/ telescopic antenna indoors
73, Simone
Hi all.
Her is my first report over BBC WS , BBC transmitter is like
lokal FM ,no problem no AM QRM no fading strong and stabile .
Signal S9+20db.
Hi all,
a weak signal this evening, but the deep dips in the graph were caused by the "exploding spectrum problem", see attachment
73, Simone
There was a problem with the incoming data stream this afternoon, we swiched to the Orfordness 1296 data stream at about 13:50 while this problem is investigated. Does Mode A work OK?
James
Hi James, all,
a first short report using Mode A, worked OK, no more problems and IR looked good, also better audio quality with the higher bitrate
73, Simone
Hi James,
a weaker signal in the last hour but only a few minor dropouts towards the end of the transmission, as expected no problems due to mode A
73, Simone
Hi all,
a few dropouts when I started, quite good then, today using mode B again.
73, Simone
Hi all,
a very weak signal in the last half hour this evening, seemed to be a general propagation problem also on other frequencies.
73, Simone
Hi,
reception was quite problematic at times due to interference. Furthermore, I think that the beam is still directed away from me.
Roland
Hi all,
datastream problems until 1025 this morning, also bad propagation conditions until 1215, good results later, see attachment
73, Simone
Hi all,
a few dropouts today, mobile reception until 1307, then a weaker signal as I had parked the car behind a high building, not sure what caused the big dropout, see attachment
73, Simone
Hi,
just a short listening interval on 7320 kHz after experiencing bad reception on 9470 kHz.
Not much to my satisfaction either.
Roland
Hi all,
what a bad start this morning :( !
From 1208 conditions improved a lot, dropouts at 1415- 1445 might have been caused by too much multitasking on the USB, also again some dropouts due to datastream problems.
73, Simone
Good reception this morning besides.......
I am to blame for the third (smallest) drop out only ;)
Hi all,
great conditions today, dropouts and breaks due to datastream problems/ changes, at 1152 the EPG and text messages had been removed and were added again after the dropouts at 1407, higher audiobitrate today than during the last week.
73, Simone
... and some results later in the car (mix of mobile and stationary reception), quite good except problems with interferences (co-channel and from the adjacent channel above) in the last 15min.
73, Simone
Hi,
Reception was quite good. 83 minutes.
...Seppo
Hi all,
pretty good results until 1500 using FhG software, then a strange drop in SNR and many dropouts, less problems using DReaM during this time, a weaker signal and interferences in the last minutes, see attachment
73, Simone
Hi all,
quite good results all day, again some interferences in the last minutes, short IR also in the evening
73, Simone
Hi,
today, there was an interruption at 08:59 UTC, see attached waterfall plot.
Roland
Hi,
signal was rather weak and there were some moments with quite a low SNR. Also see post above.
Roland
Hi all,
strong and very stable signal today, good results in the car, partly mobile reception but there is no difference at all.
Sorry for the 5min break which was my fault!
73, Simone
Signal strength decreased during the course of my logging period and only weak interference was needed to cause a dropout.
Roland
At 17:46 UTC, a very strong carrier came up and destroyed reception. Signal strength of the carrier was 40 to 50 dB above the DRM signal, see screenshot.
Roland
And here is a short report until it made no sense anymore.
Roland
Hi all,
strong signal and good results till the end using the DWT, lower SNR from 1500 as on many days, see attachment
73, Simone
Hi all,
pretty good results using the DWT again, except the last hour, due to an interference from the adjacent channel above.
73, Simone
Hi all
attached my result from 12h00 to 18h00. Perfect till 15 h00, then some interference starts. However result still good.
73, Daniel
Hi all,
the signal got weaker in the evening, but still good results, some interference in the last minutes again, see attachment
73, Simone
Hi all,
a few dropouts today, only an unattended log, so I donīt know the reason
73, Simone
Hi
a catastrophic failure during the last hour.
Roland
Hi all,
also a few dropouts in the last hour yesterday, but still OK for listening (in the car), not as bad as in Rolands report. But it seems there was a Tx related problem at 1522- 1554, see attachment
73, Simone
Hi all,
better results than yesterday evening, see attachment
73, Simone
Hi all,
here is my 9.5 hours report of todays transmission, good results using the DWT, a few minor dropouts due to local interference and at 1024- 1051 there seemed to be a datastreamproblem (3 breaks one of which also occured on 9470 kHz from Norway)
73, Simone
Interference caused a lot of rather short dropouts
Roland
Hi all,
some problems with interferences from 1600- 1640 also due to a weaker signal, btw I had to stop logging for about an hour from 1205, this was not a break in transmission!
Simone
Very good results in the 7 hour logging period with the DWT. During the last hour I made a comparison between DWT & Degen DE31 indoor and AOR & ALA 1530 balcony. In the last hour there were a strong station on 7330 khz that caused a bit more problems on the DWT.
Hi all,
a few minor dropouts towards the end, see attachment
Simone
Hi all,
good results today, lower SNR from 1500, but no problem ecxept in the last minutes due to a strong co-channel interferer, see attachment
Simone
Hi all,
pretty good results using the DWT today, see complete 570 min log attached
Simone
Hi all,
great results again using the DWT/ longwire
Simone
FritzWue
10-10-2005, 18:13
Just a few minutes of driving from 48653 Coesfeld to 48712 Gescher:
Hi all,
sometimes interference from a data transmission today, also the EPG has been removed, back to higher audio bitrate (20 kbps) again, not sure when this was changed
Simone
Hi all,
same strange audio settings as on 9470 kHz, no interferences today, see attachment
Simone
... and here is an example of the restricted audio bandwidth for a 20min period this evening
Simone
Hi all,
perfect decoding using the DWT/ loop indoors, see attachment
Simone
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