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- SABR Micro, DAB+, 3D
Re: SABR Micro, DAB+, 3D
Might work for Simon. For me the FM Yagi is needed
because I am just a bit into the shadows of other mountains on my
path to the KUSC transmitter (Mt. Wilson). Up above the
non-functional chimney and fixed aim. Rotator mucks up the other
stuff such as my master GPS antenna and the disused for 15 years
now NTSC antenna I should in theory pull down. But, I plead "over
3/4" and I don't like ladders and sloped roofs anymore.
toggle quoted messageShow quoted text
On 20210630 07:04:33, Siegfried
not on a rotator?? fixed on the chimney??
you should make it turnable (put ontop the other yagi) ... or
replace it with a bigger longer one only for the dab area (and
also on a rotator)
i guess you should get more from it if you can turn it
Am 30.06.2021 um 14:30 schrieb Simon
The antenna is the smaller log periodic.
only 8km away ?? then you do not need a big antenna like
your lopper (but seems to be a good wideband solution)
a paperclip poked in an rtl dongle should work (for your
for dab"dx" you need a good vhf yagi for around 200 megs
but you sure know that
... while talking about antennas ... is your feed mounted
?!? (pulling your leg a bit)
Am 30.06.2021 um 13:44 schrieb Simon
Probably I’ll develop as a plug-in as I
have the radio interface available. Once working I could
then make it a standalone program but that’s quite a lot
One reason for DAB+ is I then have the
classes available for future work, also I can listen to
Jazz FM (UK) and also play DAB+ when we get good Tropo.
Currently using a nice 100 to 600MHz
log periodic, am only ~8 km from the transmitter.
could you include that in console?? or will it be an
extra app like qt dab?!?
Am 30.06.2021 um 13:29 schrieb Simon
QT-DAB does work, drives the Airspy
correctly. My birthday present from me to me in October
will be my own DAB+ receiver app 😊
look for qt dab ... soft from jan
lots of hardware included (rtl dongle, sdrplay, lime,
pluto etc etc) ... he even works on receive via dab and
retransmit on analog fm stereo (if you use a pluto) ...
then you can receive your favourite dab station on any
normal fm radio in your house (retransmitting not
jan is now on holiday but will be back in a few weeks
(mid of july?!?)
greetz sigi dg9bfc
Am 30.06.2021 um 10:18 schrieb
I’m just running the Windows kit,
haven’t built it or even looked at the code.
Simon Brown, G4ELI
[Edited Message Follows]
On Wed, Jun 30, 2021 at 08:22 AM, Simon Brown wrote:
Welle.io is not bad but uses a lot of CPU and I
don’t think it drives my Airspy R2 correctly.
It depends. If it is built to use FFTW, then yes. The
CPU-load in my case is around 17%.
But if I build Welle-IO
using Kiss-FFT and
compiled using fast-calls
the CPU drops to only
Edit: the Airspy
problem is proably related to how Welle-IO
handles SoapySDR. Not
very good IMHO.
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