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Uknown option B #29
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I guess the manual is old ? |
You are using Windows. Please wait for a new release. |
44 MHz? This has nothing to do with DAB Although it is specified for VHF I, even 44 MHz would be too low. The lowest ever used active Frequency ist channel 5A (174 MHz) Maybe you have received a mirror signal? |
Yes, it was definitely mirror and it was showing up only in windows. Now I'm back on Linux and it's gone. Must be something to do with drivers. |
Actually there is signal at 44.175 Mhz I'm confused as what it is. |
217,360 MHz is not a DAB frequency. You mean 227,360 (12C) or 213,360 (10C) I've downloaded the file and will test it. |
Where are you living and what Mux should we see here? I suppose you are from Ireland according to your profile and can only test it with one mux: http://www.fmlist.org/sendertabelle/dab-ww_more.php?inputLand=IRL&inputEn=2E01 Please keep in mind that raw is not raw. I wanted to convert it to a readable format for welle.io, but I got no sync (both in qt-dab nor welle.io). You need sox for that:
Albrecht: could you check the syntax (= file type specification)? Are you sure the center frequency was correct? |
I'm not familiar with the GQRX file format. In which format is it? @andimik: Do you see an OFDM spectrum with your converted file. |
No, not at all. The gqrx spec I found on http://gnuradio.4.n7.nabble.com/GQRX-raw-IQ-file-format-structure-td55448.html |
Sorry for late response. Just to clarify - I'm in Limerick, Ireland, receiving 227.360 (12C) from Woodcock Hill trasmitter. It's an RTE mux. That is working fine except for DAB (which is majority of programme lol) |
Hi, I uploaded another raw iq file of that unknown 44.175 Mhz signal. I tried to play in welle.io , it picks up sync and shows very low SNR however can't make much of it. Thanks. Tom. |
You forgot -g which is the gain switch Only Sticks with E4000 have an automatic gain. |
Thanks for the file. If you rename it to raw then you can use it in qt-dab - or better - in eti-stuff. It is DAB Ireland Mux1. So don't continue on 44 MHz, as you have it on 12C with a better signal, I suppose. |
They must be testing as the frequency has just shifted down few hundred khz. I'm not bothered since it's not usable level signal. |
Anyway, you found much more out that you might have thought. See new issue on Qt-DAB :-) |
Not a problem, I do that all the time. I'm here to help if you need me again lol :) |
Try 12A, which is the 2nd mux in Ireland, but Limerick is not covered at the moment, so good luck! http://fmscan.org/net.php?r=d&m=m&itu=IRL&bouq=1&pxf=DAB+Ireland+Mux2 |
I found another signal that looks like DAB but it's at around 44 Mhz, Can't search for it so I decided to do it via rawfile. Unfortunately I can't do it the way it is described in manual.
Any help would be apreciated.
It's latest windows10 version.
C:\Program Files (x86)\welle.io>welle-io.exe -D rawfile -F test.raw -B s16le
Unknown option 'B'.
Thanks. Tom.
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