Rick W. wrote:
Hi Paul,
Sounds like you might be getting caught up with some of your other work
and can devote some time again to digital modes:) For those who are not
aware, it was Paul's paper on ARQ concepts that lead to development of
several current uses of ham radio ARQ modes.
I hadn't thought of trying a high-speed VHF/UHF modem :) Maybe
that's because I live away from what most people call civilization
and there aren't many VHF/UHF signals around here.
I'd figured on using a CPU personality for overall control, and
doing the work in hardware.
Is the Spartan-3E
1970's with MSI TTL.
73,
John
KD6OZH
- Original Message -
From: Paul L Schmidt, K9PS
To: digitalradio@yahoogroups.com
Sent: Monday, August 04, 2008 23:15 UTC
Subject: Re: [digitalradio] Has anyone looked into FPGA-based digital modes?
I hadn't thought of trying a high
John B. Stephensen wrote:
FPGAs are useful for signal processing as you can do many operations in
parallel. FIR filter, FFT and CORDIC modules are available in the free
development software from Xilinx. They are very good for processing
wideband signals or digitizing an entire amateur band
Hi Paul,
Sounds like you might be getting caught up with some of your other work
and can devote some time again to digital modes:) For those who are not
aware, it was Paul's paper on ARQ concepts that lead to development of
several current uses of ham radio ARQ modes.
Some comments and
where could one finds these modes
MATTHEW A. GREGORY
KC2PUA
- Original Message
From: Rick W. [EMAIL PROTECTED]
To: digitalradio@yahoogroups.com
Sent: Sunday, August 3, 2008 11:46:11 AM
Subject: Re: [digitalradio] Has anyone looked into FPGA-based digital modes?
Hi Paul,
Sounds
gregory wrote:
where could one finds these modes
MATTHEW A. GREGORY
KC2PUA
- Original Message
From: Rick W. [EMAIL PROTECTED]
To: digitalradio@yahoogroups.com
Sent: Sunday, August 3, 2008 11:46:11 AM
Subject: Re: [digitalradio] Has anyone looked into FPGA-based digital
modes
Paul you just hit the nail right square on the head.
I have said just that for years.
Don't say that to long and loud. The anti-wide pople
will come and get you.
John
At 08:27 AM 8/3/2008 -0400, you wrote in part:
Sound card modes, of course, have gained popularity due to their
flexibility
instruction. 3 or 4 would fit in an XC3S500E.
73,
John
KD6OZH
- Original Message -
From: Paul L Schmidt, K9PS
To: digitalradio@yahoogroups.com
Sent: Sunday, August 03, 2008 12:27 UTC
Subject: Re: [digitalradio] Has anyone looked into FPGA-based digital modes?
John B
The USRP (Universal Software Radio Project) uses Xilinx FPGA's for it's
main processing and interface. It's compatible with GNURadio and is
well supported.
Paul L Schmidt, K9PS wrote:
I've been thinking about getting an FPGA board
to play with and see what it will do as far as
hosting an
: Re: [digitalradio] Has anyone looked into FPGA-based digital modes?
The USRP (Universal Software Radio Project) uses Xilinx FPGA's for it's
main processing and interface. It's compatible with GNURadio and is
well supported.
Paul L Schmidt, K9PS wrote:
I've been thinking about getting an FPGA
.
Unfortunately, the starter kit has only low-speed low-resolution ADCs and DACs.
73,
John
KD6OZH
- Original Message -
From: Paul L Schmidt, K9PS
To: digitalradio@yahoogroups.com
Sent: Saturday, August 02, 2008 00:19 UTC
Subject: [digitalradio] Has anyone looked into FPGA
I've been thinking about getting an FPGA board
to play with and see what it will do as far as
hosting an HF modem, or at least the A/D and DSP
portions of one. The board I'm considering has
a Xilinx Spartan 3E FPGA and all of the peripheral
hardware (A/D, D/A, VGA, ethernet, serial, etc.)
one
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