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Old 25-11-2008, 06:07   #1
mitajohn
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Nov. 25

Hi all,

A weak signal in a noisy environment with a chaotic IR gave the attached result.


EDIT: A new thread has been opened for this test, please move the post there.
Thanks.

Post moved, Simone
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File Type: png 3995_081125_0639_mitajohn.png (26.3 KB, 671 views)
File Type: png 3995-081125-0639-0700-mitajohn.png (37.2 KB, 582 views)
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Last edited by mitajohn : 25-11-2008 at 06:53. Reason: Move the post
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Old 25-11-2008, 06:49   #2
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BBC & DW Joint Test Transmission

Hi all,

today, wed and thu BBC & DW will be testing a new joint schedule. The transmission schedule is as follows, please let us know how it works and what you like and don't like:

HF

Code:
start end freq Station power Azim Antenna days Prog Mode Audio Source 05:00 07:00 3995 SINES 90 40 HR 1/1/0.50 1234567 BBC B ENEUR 07:00 08:00 6130 SINES 90 45 HR 4/4/0.80 1234567 DW B DW02 07:00 08:00 6195 SKELTON 100 150 HR 2/1/0.50 1234567 DW B DW02 08:00 09:00 9610 SINES 90 45 HR 4/4/0.80 1234567 DW B DW02 08:03 09:00 13810 SINES 90 30 HR 4/4/1.20 1234567 DW B DW02 09:00 10:00 9610 SINES 90 45 HR 4/4/0.80 1234567 DW A DW02 09:00 10:00 13810 SINES 90 30 HR 4/4/1.20 1234567 DW A DW02 10:00 11:00 9545 WOOFFERTON 100 114 HR 2/4/1.00 1234567 DW A DW02 10:00 11:00 13810 SINES 90 30 HR 4/4/1.20 1234567 DW A DW02 11:00 12:00 9545 WOOFFERTON 100 114 HR 2/4/1.00 1234567 DW A DW02 11:00 12:00 13810 SINES 90 30 HR 4/4/1.20 1234567 DW A DW02 12:00 13:00 9545 WOOFFERTON 100 114 HR 2/4/1.00 1234567 DW A DW02 12:00 13:00 13810 SINES 90 30 HR 4/4/1.20 1234567 DW A DW02 13:00 14:00 9545 WOOFFERTON 100 114 HR 2/4/1.00 1234567 DW A DW02 13:00 14:00 13810 SINES 90 30 HR 4/4/1.20 1234567 DW A DW02 14:00 15:00 9545 WOOFFERTON 100 114 HR 2/4/1.00 1234567 BBC A ENEUR 14:00 15:00 13590 SINES 90 30 HR 4/4/1.20 1234567 BBC A ENEUR 15:00 16:00 9545 SKELTON 100 153 HRS4/2/0.60 S12 1234567 BBC A ENEUR 15:00 16:00 13590 SINES 90 30 HR 4/4/1.20 1234567 BBC A ENEUR 16:00 17:00 3995 SKELTON 100 121 HR 1/2/0.30 1234567 BBC B ENEUR 16:00 17:00 5895 KVITSOY 35 190 LPH 1234567 BBC B ENEUR 17:00 18:00 3995 SKELTON 100 121 HR 1/2/0.30 1234567 BBC B ENEUR 18:00 19:00 3995 SKELTON 100 120 HR 1/1/0.30 1234567 DW B DW02 19:00 20:00 3995 SKELTON 100 120 HR 1/1/0.30 1234567 DW B DW02 20:00 21:00 3995 SKELTON 100 120 HR 1/1/0.30 1234567 DW B DW02 21:00 22:00 3995 SKELTON 100 120 HR 1/1/0.30 1234567 DW B DW02 22:00 23:00 3995 SINES 90 40 HR 1/1/0.50 1234567 DW B DW02
MF
Code:
start end freq Station power Azim Antenna bit/s days Prog Audio Source 05:00 07:00 1296 ORFORDNESS 35 96 VM 101208 1234567 BBC ENEUR 07:00 17:00 1296 ORFORDNESS 35 96 VM 101208 1234567 off air 17:00 18:00 1296 ORFORDNESS 35 96 VM 101208 1234567 BBC ENEUR 18:00 23:00 1296 ORFORDNESS 35 96 VM 101208 1234567 DW DW02
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Old 25-11-2008, 08:11   #3
Digger
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BBC & DW Test

A bit chaotic Impulse Response on 3995 kHz this morning, but a very good result anyway. According to the schedule above, the entire transmission came from Sines. However, there was a break at 06 UTC and after the break the SNR seemed a little bit lower that during the first hour.

New Label: "BBC & DW Test"
Attached Images
File Type: png 3995-081125-0511-0659-HED362.png (40.8 KB, 590 views)
File Type: jpg bbc_dw_test_wee.jpg (9.5 KB, 558 views)
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Last edited by Digger : 25-11-2008 at 08:13.
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Old 25-11-2008, 08:16   #4
Digger
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BBC & DW Test

BBC & DW Test on a new (?) frequency - 9610 kHz. Nearly perfect decoding on a clear channel. The log is 50 minutes long.
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File Type: png 9610-081125-0810-0900-HED362.png (34.3 KB, 492 views)
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Old 25-11-2008, 09:48   #5
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Hi all.

Perfect clear cannel and very strong signal stringth up to 74dbuV but little instabile propagation . CDA was 99.36% ok. MODE A is very good to my location if Ionospheric layers is ok.

Log is 108min.
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Old 25-11-2008, 10:07   #6
Digger
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BBC & DW Test

BBC & DW Test on 9545 kHz. Perfect reception for 60 minutes here. My National RF-B60 does not provide such a high SNR as the FRG-7700 does, but it works fine anyway.

The second log is taken with the FRG-7700. The log is 70 minutes long and perfect.
Attached Images
File Type: png 9545-081125-1001-1101-HED362.png (34.1 KB, 621 views)
File Type: png 9545-081125-1106-1216-HED362.png (36.8 KB, 570 views)
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Last edited by Digger : 25-11-2008 at 11:20.
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Old 25-11-2008, 12:04   #7
Sixten
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BBC & DW Test

Prpoagtion very up and down from Wofferton and so start CRI on 9540 10db over DRM not so fan , listen to dropout.
Log 68min CDA 92% for CRI .
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File Type: png 9545-081125-1145-1253-SIXTEN .png (48.3 KB, 526 views)
File Type: png 9540_CRI.png (10.0 KB, 507 views)
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Old 25-11-2008, 12:58   #8
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Just two clipboards here from DWT. Woofferton is good but Sines more stable as always. As seen in Sixtens log, reception of 9545kHz had some detoriation here too, about 12UTC, but Sines has remained 100% stable.

It will be interesting to see the results of the DW/BBC cooperation.

Anyway, it seems that Journaline is going to be lost.
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File Type: jpg compare.jpg (59.3 KB, 528 views)

Last edited by Ager : 25-11-2008 at 13:03.
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Old 25-11-2008, 14:03   #9
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Good results on 13590 kHz.
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Old 25-11-2008, 14:29   #10
simone
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1296 kHz Orf

Interesting to see the new label this morning, similar results as usual as transmission parameters were basically the same as before.
Simone
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Old 25-11-2008, 14:35   #11
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6130 kHz Sin

Perfect results with a strong and stable signal.
Simone
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Old 25-11-2008, 14:39   #12
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Sorry, just a short log for the new 9545 kHz with bad results.
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Old 25-11-2008, 14:42   #13
simone
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9610 kHz Sin

Not too bad just using the DWT/whip antenna, no problems using mode A.
Simone
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Old 25-11-2008, 14:48   #14
simone
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3995 kHz Sin (Skn?)

Some problems after the switching at 0600 (not sure if the second hour was from Sines as scheduled?)
Simone
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Old 25-11-2008, 15:21   #15
simone
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9545 kHz Skn

Almost perfect results from Skelton.
Simone
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