Hi all, SL doesn t cope well with the sampling rate delivered by the ExtIO for the RTL-SDR (DAB sticks). But as I write these lines, I am experimenting with aNov 22, 2012 1 of 7View SourceHi all,
SL doesn't cope well with the sampling rate delivered by the ExtIO for the RTL-SDR (DAB sticks). But as I write these lines, I am experimenting with a cheap Noxon 'DAB USB-Stick' to get the combination of the ExtIO driver and Spectrum Lab working properly.
It works (with a not-yet-released version), but only for a few minutes before the driver stalls.
All the best,
Am 22.11.2012 02:14, schrieb John Rose:
There are a group of us using an X50 co-linear with the Graves transmitter and it works really well.
At the moment I am just trying to get an E4000 chip based SDR to work with SL as it would provide a very low cost setup, but so far have not had much success with sorting out the settings in the Exio.
Didn’t get much chance on the Leonids as I was away and forgot to take the antenna.
----- Original Message -----
Subject: [SpectrumLabUsers] Meteors
> OK looks like that is sorted some nice meteor pings this morning.
Thanks, I see the usr files.
Now to assemble my beam. I do see Graves on a discone but not too well.
73 Alan G4ZFQ
Hi Alan, Just finished trying this during the Geminids and don t seem to be having a lot of success. The setup is as follows an X200 collinear antenna with aDec 16 9:10 AM 1 of 7View Source
Just finished trying this during the Geminids and don’t seem to be having a lot of success.
The setup is as follows an X200 collinear antenna with a Moonraker preamp feeding an Icom 1500 and the RTL dongle (higher gain used to cope with splitting the signal) using Graves as the source at 143.050MHz
The Icom audio is from the internal USB audio source and is tuned to 143.0507MHz CW, filter set to 2.8KHZ which puts the meteor detections at around 1.4KHz in SL and this all is working giving good strong detections at between 50 and 120 per hour.
On the RTL side, as suggested I am using SDR# set to 143.050 with the centre at 143.046 (as there is always a signal at the centre frequency) this is connected to another instance of SL via VAC and I am not seeing any activity in either SDR# or SL (as a check I have tuned SDR# to an FM station at around 105 and this comes through fine), I have tried CW-L, CW-U and USB as well as moving the tuned frequency around and don’t seem to be getting anything via SDR#, I would expect to at least see something in the SDR# waterfall even if it was not set correctly for SL.
Since you have been using a similar setup I was wondering if you could shed an light on where I may be going wrong, an colleague has also been trying with a similar setup but also without success around 35 miles away.
----- Original Message -----
Subject: RE: [SpectrumLabUsers] Meteors
> There are a group of us using an X50 co-linear with the Graves transmitter
> and it works really well.
> At the moment I am just trying to get an E4000 chip based SDR to work with
> SL as it would provide a very low cost setup, but so far have not had much
> success with sorting out the settings in the Exio.
I'm using a RTL dongle and SDR#.
Look carefully on the SDR# download page for a link to the installation instructions.
The audio is sent to SpecLab with VAC. Or if you have "Stereo Mix" or the like that can be used.
73 Alan G4ZFQ
... On TV channel R1 I got several carriers and brief videos from RUS / UKR This zoomed-in on a few signalsDec 16 10:00 AM 1 of 7View Source
> Just finished trying this during the Geminids and don't seem to be having aOn TV channel R1 I got several carriers and brief videos from RUS / UKR
> lot of success.
This zoomed-in on a few signals
This shows the entire range of channel R3, the constant traces are local spurs.
Signals are from RUS / UKR / MDA
Interestingly R3 produced the best signals, seems to have been the optimal
Jurgen Bartels Suellwarden, N. Germany
Ant. hor: 29-45MHz 7-el, 45-87MHz 11-el, FM 15.11, Band-3:13-el, UHF:48-el
TV: Winradio G305 / Fly2000 + video noise filter & variable IF BW
FM: Downconverter + Perseus + Speclab as WFM demod.
MW: 90m bev 220°, 30 x 4m EWE 320° with JB-terminator, Winradio & Perseus