Toko filters are a few dollars retail.
On August 9, 2020 11:14:34 PM UTC, Steve wrote:
>I may have to download Elsie then and grab a pencil to make some
>coils...
>:-)
>
>http://www.tonnesoftware.com/elsie.html
>
>
>
>On Sun, Aug 9, 2020 at 6:02 PM Adrian Musceac
>wrote:
>
>> The Pluto receiver
I may have to download Elsie then and grab a pencil to make some coils...
:-)
http://www.tonnesoftware.com/elsie.html
On Sun, Aug 9, 2020 at 6:02 PM Adrian Musceac wrote:
> The Pluto receiver is useless without proper filters as it will receive
> everything at the same time. With filters, it
The Pluto receiver is useless without proper filters as it will receive
everything at the same time. With filters, it works fine, I managed more than
800 km on FT8 with it last winter, I talked a little bit about it at SDRA.
Adrian
On August 9, 2020 9:59:53 PM UTC, Steve wrote:
>When the
On Sun, Aug 9, 2020 at 5:51 PM David Rowe wrote:
>
> I wonder if that was a configuration thing Steve, at max analog gain the
> noise figure of the Pluto (AD9363) is specified at just 2.5dB - better
> than many other SDRs and hardware-defined Ham radios.
>
> Gain is pretty cheap in SDRs, once
> When the Pluto came out, I had to have one. Playing with it kind of
> left me saying "meh" because it didn't seem to have much RX gain. I
> needed a beam to focus on the transmitter.
I wonder if that was a configuration thing Steve, at max analog gain the
noise figure of the Pluto (AD9363) is
When the Pluto came out, I had to have one. Playing with it kind of
left me saying "meh" because it didn't seem to have much RX gain. I
needed a beam to focus on the transmitter.
I then tried the LimeSDR-Mini but that thing only lasted about a year
and then failed. Expensive junk. Comparably, the
With the addition of a LPF I believe it meets the spectral purity
requirements of the Amateur LCD on 2M:
http://www.rowetel.com/?p=7207
and on HF:
http://www.rowetel.com/?p=6317
- David
On 10/8/20 6:50 am, glen english wrote:
> except that the Pi transmitter has unacceptable spectral
except that the Pi transmitter has unacceptable spectral purity.
On 9/08/2020 7:18 pm, Adrian Musceac wrote:
Thanks David for the news.
One question: how high can the Pi transmitter go in frequency?
Our 70 cm band is pretty crowded, but the 23 cm band and 2305-2400 MHz
bands are underutilized
Hi David and developers,
Thanks David for the instructions below.
When one does new build, re-running "build_linux.sh"
can the script called to build WxWidgets, determine it is
built already and not download and compile it again?
In file cmake/BuildWxWidgets.cmake line 27 add something like:
Hi Adrian,
The RpiTx doc suggest 1.5GHz, but I haven't tried it. Suspect it gets
"noisier" as freq increases, however as the power is so low it may still
meet spurious requirements.
Cheers,
David
On 9/8/20 6:48 pm, Adrian Musceac wrote:
> Thanks David for the news.
> One question: how high can
I used:
cmake -DCMAKE_BUILD_TYPE=Debug -DCODEC2_BUILD_DIR=~/codec2/build_linux
-DLPCNET_BUILD_DIR=~/LPCNet/build_linux -DBOOTSTRAP_WXWIDGETS=1 ..
On 9/8/20 6:01 pm, Al Beard wrote:
> Hi David,
>
> Q/ How did you test, on Linux, wxWidgets 3.1 ?
>
> System here: Odroid N2 kernel 5.6.18-meson64
Thanks David for the news.
One question: how high can the Pi transmitter go in frequency?
Our 70 cm band is pretty crowded, but the 23 cm band and 2305-2400 MHz bands
are underutilized and we want to make use of them. The Pi/RTL system is a good
candidate because of price.
Adrian
On August 9,
Hi David,
Q/ How did you test, on Linux, wxWidgets 3.1 ?
System here: Odroid N2 kernel 5.6.18-meson64
DISTRIB_DESCRIPTION="Ubuntu 20.04.1 LTS"
NAME="Ubuntu"
VERSION="20.04.1 LTS (Focal Fossa)"
With the OS supplied wxWidgets 3.0 the FreeDV GUI compiles and runs fine.
With a slight change to
Hi Adrian,
You data mode (and HNAP) sound pretty cool. Thanks, I enjoyed the SDRA
HNAP talk by Lukas, that's quite a sophisticated system.
-/-
A couple of recent developments in this area by Bill, VK5DSP, and myself:
1/ We have ported the 4FSK/LLR/LDPC code work to C in this PR
Hi David,
I've watched with interest your recent foray into FreeDV data transmission.
There's a new and interesting project called HNAP (https://hnap.de ) which has
the same goals (long distance IP links). The project is well described in this
year's SDRA talk by Lukas O.
Inspired by both your
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