Hello Alex, I/Q recordings take a lot of disk space. At 96 KHz, a 24-hour file is
going
to be over 46 Gb in size! Perhaps it makes sense to save just the
waterfall,
at 10-second resolution only 64 Mb per day are required. An excellent point! I had not considered the possibility of capturing an entire days worth of data but that certainly does appeal to me. Considering the size and cost of hard drive space today, not to mention how cheap writeable CDs are, I wonder if a one second resolution would be acceptable. Would this be 640 Mb per day? Or am I getting the math all wrong? It's pretty early in the morning for me now. 8-) Bill Walker - WV7G
|
Thanks for the Ray Andraka FPGA Info
This guy is terrific, I particularly enjoyed:
and
/We Demo'd a shortwave radio in a SpartanII at FCCM <> in Napa, April 8-11 and at MAPLD <>, Sept 8-11 2003. /
//on his home page.
Leon Heller wrote:
toggle quoted message
Show quoted text
Ray Andraka, an FPGA design consultant, once implemented a complete FM Rx on
an FPGA, including the demodulation. He had a description on his web site,
but I can't find it.
Leon
--
Leon Heller, G1HSM
leon.heller@...
---
[This E-mail has been scanned for viruses but it is your responsibility
to maintain up to date anti virus software on the device that you are
currently using to read this email. ]
--
Regards,
John
=========================================================
email: k5jhf@...
photos:
files:
web page:
call sign: K5JHF
=========================================================
|
Re: Rocky 1.2 released, with SSB mode
Alex,
?
Rocky 1.2 is VERY nice.? The SSB implementation is quite helpful as there is a lot of SSB DX on in the evenings.
?
Thanks for the nice software.
?
73 - Mike - K9JRI
"Alex, VE3NEA" wrote:
SSB is now supported, with a twin-PBT filter. Another new function is
continous wav playback.
Download: http://www.dxatlas.com/Rocky/RockySetup.zip
73 Alex VE3NEA
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Re: Rocky 1.2 released, with SSB mode
Hi, Alex It works fine with my WinMe*** Would it be possible for you to rename the new versions so we could keeep them and go back to previous if something fails or for comparisons? Would it be very difficult to add AM mode? Many thanks for all your nice works and support. 73 de Joe - CT1AXG Citando "Alex, VE3NEA" <alshovk@...>: <html><body> <tt> SSB is now supported, with a twin-PBT filter. Another new function is <BR> continous wav playback.<BR> <BR> Download: <a href="> RockySetup.zip</a><BR> <BR> 73 Alex VE3NEA <BR> <BR> </tt> <!-- |**|begin egp html banner|**| --> <br> <div style="text-align:center; color:#909090; width:500px;"> <hr style="border-bottom:1px; width:500px; text-align:left;"> <tt>YAHOO! GROUPS LINKS</tt> </div> <br> <ul> <tt><li type=square> Visit your group "<a href=">softrock40</a>" on the web.<br> </tt> <tt><li type=square> To unsubscribe from this group, send an email to:<br> <a href="mailto:softrock40-unsubscribe@...? subject=Unsubscribe">softrock40-unsubscribe@...</a><br> </tt> <tt><li type=square> Your use of Yahoo! Groups is subject to the <a href=">Yahoo! Terms of Service</a>.</tt> </ul> <br> <div style="text-align:center; color:#909090; width:500px;"> <hr style="border-bottom:1px; width:500px; text-align:left;"> </div> </br> <!-- |**|end egp html banner|**| --> </body></html> __________________________________________________________ Email gratuito com 2 000 MB Espa???o para guardar as mem???rias de uma vida
|
Re: Rocky 1.2 released, with SSB mode
Works FB here!
toggle quoted message
Show quoted text
--- In softrock40@..., "Alex, VE3NEA" <alshovk@d...> wrote:
SSB is now supported, with a twin-PBT filter. Another new function is
continous wav playback.
Download:
73 Alex VE3NEA
|
Hi Bill, It would be great if Rocky had a feature to enable the user to set a
starting time and duration for recording to occur. This would enable making
unattended recordings of the bands while getting that much needed sleep. 8-) Great idea! I will see if I can implement it, though this will certainly take quite a bit of time. I/Q recordings take a lot of disk space. At 96 KHz, a 24-hour file is going to be over 46 Gb in size! Perhaps it makes sense to save just the waterfall, at 10-second resolution only 64 Mb per day are required. 73 Alex VE3NEA
|
Rocky 1.2 released, with SSB mode
SSB is now supported, with a twin-PBT filter. Another new function is continous wav playback.
Download:
73 Alex VE3NEA
|
??? 299 bucks is a little stiff, to have the capability on
your laptop.
?
?
Stan Rife
W5EWA
Houston, TX
K2 S/N
4216
?
toggle quoted message
Show quoted text
Ray,
We have just finished
qualifying a new soundcard for use with laptops
and the SDR-1000.? It
is called the PreSonus FireBox.? It is a firewire
(IEEE-1394)
soundcard with 6 inputs and 10 outputs.? It will take a
hefty
processor to run it (~1.5GHz+), but will give comparable
performance to the
Delta 44.
Eric Wachsmann
FlexRadio
Systems
======================================================================
I
know the Delta-44 is the "preferred" sound card by many for SDR
use,
however I wonder which external card has shown the best
performance
for use with a laptop.
The SB Audigy 2 NX USB and the SB
Audigy 2 ZS Laptop (PCMCIA) cards
seem to have pretty good specs however
I've noticed a bit of list
message traffic concerning difficulties a few
users have had with
these cards when used with the Rocky
software.
Have these difficulties been resolved in the most recent
versions of
Rocky ? Any comments on the use of these cards (or others you
have had
good luck with) with Rocky and other SDR software would be
welcome.
Thanks & 73,
Ray WB6TPU
|
Hi Bob, Looks like you've found lots of help! Probably number one item would be to check for the LED coming on. Then check the audio and RF cables to make sure they are not swapped or bridged. Then examine the board with a magnifier for component position and solder bridges. If all that looks good, Elecraft suggests the highest percentage of their build problems has to do with toroids that may be wound properly, but that have enough enamel left on the wires as to gum up the connection at the PCB. After I wind the coil, I use paint remover on the ends, then tin the ends, and finally solder to PCB. The trick is getting a good lead and strip on (example) the bifilar twisted wires but without shorting them at the ferrite. Good luck! --- In softrock40@..., "Bob Miller" <dvcamvideo2004@y...> wrote:
Hello All,
I finished building the SR40 and loaded Rocky software and seem to
have a problem. I set the center frequency and all I hear is that
frequency. Not knowing where to look, I thought I would ask here. If I
have the coil wired wrong would that cause this kind of problem?
Thanks for any suggestions you may have.
Bob
|
--- In softrock40@..., "Bob Miller" <dvcamvideo2004@y...> wrote:
Hello All,
I finished building the SR40 and loaded Rocky software and seem to
have a problem. I set the center frequency and all I hear is that
frequency. Not knowing where to look, I thought I would ask here.
If I have the coil wired wrong would that cause this kind of problem?
Thanks for any suggestions you may have.
Bob
Try the files section YIRNnn48T83nGTO7xULviLPJlWGYRNj4wVwsji0NK9Sm2RfJ7Q/SoftRock%20FAQ.txt I believe it is from N1RX. Yes the input coil could be installed wrong, but there are also many other things. Particularly poor or shorted solder joints. Use a magnifier and ohmmeter to check out. Good luck, 73, Marsh, NC7V
|
Hi Bob,
If you would like a phone call to talk you through some of the things to look for, I would be happy to give you a call. Just send you telephone number and a time when you would like a call and I will give you a call.
73,
Tony KB9YIG
toggle quoted message
Show quoted text
----- Original Message ----- From: "Bob Miller" <dvcamvideo2004@...> To: <softrock40@...> Sent: Tuesday, November 01, 2005 6:02 PM Subject: [softrock40] Build problem Hello All,
I finished building the SR40 and loaded Rocky software and seem to
have a problem. I set the center frequency and all I hear is that
frequency. Not knowing where to look, I thought I would ask here. If I
have the coil wired wrong would that cause this kind of problem?
Thanks for any suggestions you may have.
Bob
Yahoo! Groups Links
|
Hello All,
I finished building the SR40 and loaded Rocky software and seem to
have a problem. I set the center frequency and all I hear is that
frequency. Not knowing where to look, I thought I would ask here. If I
have the coil wired wrong would that cause this kind of problem?
Thanks for any suggestions you may have.
Bob
|
afedri8201.pdf (application/pdf Object)
Man, look at this chip, wow :-)
regards,
John
|
Eric Wachsmann - FlexRadio
Ray,
We have just finished qualifying a new soundcard for use with laptops
and the SDR-1000. It is called the PreSonus FireBox. It is a firewire
(IEEE-1394) soundcard with 6 inputs and 10 outputs. It will take a
hefty processor to run it (~1.5GHz+), but will give comparable
performance to the Delta 44.
Eric Wachsmann
FlexRadio Systems
======================================================================
I know the Delta-44 is the "preferred" sound card by many for SDR use,
however I wonder which external card has shown the best performance
for use with a laptop.
The SB Audigy 2 NX USB and the SB Audigy 2 ZS Laptop (PCMCIA) cards
seem to have pretty good specs however I've noticed a bit of list
message traffic concerning difficulties a few users have had with
these cards when used with the Rocky software.
Have these difficulties been resolved in the most recent versions of
Rocky ? Any comments on the use of these cards (or others you have had
good luck with) with Rocky and other SDR software would be welcome.
Thanks & 73,
Ray WB6TPU
|
These chips may be helpful :-)
Duo dials in to HD Radio
By Jeff Berman, News Editor -- 10/24/2005
EDN
Texas Instruments <> and Atmel <> have joined forces to deliver an HD Radio offering that combines Atmel's 74260 RF tuner IC with TI's TMS320DRI350 HD Radio digital baseband.
The companies say the offering provides improved flexibility over competing approaches, optimizes overall system performance, and lowers bill-of-materials costs for HD Radio developers.
The DRI350 is the sole available baseband with HD Radio and AM/FM baseband processing in a single chip, according to TI. When paired with the Atmel T4260, it can be programmed for a twin tuner implementation, which enables distortion-free reception through phase diversity, antenna diversity, dynamic antenna-direction adaptation, and continuous background reception, according to TI.
"The DRI350 performs HD Radio and AM/FM radio processing, such that if you lose the digital sidebands, you have the analog center channel to fall back on," said John Gardner, TI digital radio product manager.
ADVERTISEMENT
<>
The DRI350 offers higher integration than competing approaches based on co-processors, such as Philips CarDSP platform, Gardner said.
"From our perspective, we have the analog component with our AFEDRI8201 A/D converter, which does RF sampling, and that is coupled with the DRI350 for the analog and baseband components of an HD Radio solution," Gardner said.
In the past TI has paired its baseband processor with Philips' TEF6721 for the RF function. Atmel's T4260 provides a lower-cost option, Gardner said. "It also provides better flexibility for designers that do not want to have a single source of RF components," he added. "Now Atmel is able to give them a different option."
Vendors next need to develop systems on modules, in which all HD Radio components, along with certain peripherals from RF to audio out, would be on a single board, Gardner said. A single-board offering would free HD Radio developers from focusing on RF, the baseband, and the interface between the two.
Atmel's RF T4260 tuner is available now and costs $2.38 (10,000). TI's DRI350 carries sample pricing beginning at $22.
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??? 2005, Reed Business Information, a division of Reed Elsevier Inc. All Rights Reserved.
--
Regards,
John
=========================================================
email: k5jhf@...
photos:
files:
web page:
call sign: K5JHF
=========================================================
|
Re: Useful FPGA development board
I'm wondering if you can replace the DDS with a FPGA numerically controlled oscillator. By this, I mean implementing a Phase Accumulator and a loadable Delta Phase register and adding them together at a fixed high speed rate. The upper two bits of the Phase Accumulator could control the sampling switches through logic. In other words create a special purpose DDS without the sine table. Then on to the ADC. Put as much of the SDR front end as possible into the FPGA :-) Just a thought of course. I want to learn about these FPGA's, too :-)
Leon Heller wrote:
toggle quoted message
Show quoted text
I've got a Digilent Spartan 3 kit with a -400 Spartan 3 FPGA ($125):
I've started designing an ADC interface for it.
Leon
--
Leon Heller, G1HSM
leon.heller@...
--
Regards,
John
=========================================================
email: k5jhf@...
photos:
files:
web page:
call sign: K5JHF
=========================================================
|
Posted a picture of my two-band crystal switch setup. Not particularly elegant but quite functional. Tapping and touching the ungrounded crystals caused no apparent distress. Operation with Rocky v1.1 makes it a nice little setup.
Chuck Carpenter, W5USJ, Point, TX -|- Rains Co. -|- EM22cv -|- 72 es 73
50 years -|- 19 - K2OFN and 31 - W5USJ -|- Most fun = QRP since 1984.
www.w5usj.com hosted by Hamnutz.com -|- NeTxQRP www.netxqrp.org
|
Re: Rocky and SSB monitoring
opps,?? I meant Alex!????? They look
so much alike, I get them mixed up.???
?
My apoligies to Alex and Tony .??
?
?
N3WT
From:
softrock40@... [mailto:softrock40@...] On Behalf Of
Phil Covington
Sent: Tuesday, November 01, 2005 1:46
PM
To: softrock40@...
Subject: [softrock40] Re:
Rocky and SSB monitoring
toggle quoted message
Show quoted text
--- In softrock40@..., "n3wtus"
wrote:
>
> Tony,
>
> The current version of Rocky is
fantastic.? Incredible audio quality?
> with the Soundblaster
External 24 Bit soundcard and 96khz sample.
>
> On that rare
occaision when I might want to listen to SSB, (yuk), any
> chance of
adding the option to widen? the bandwidth to something like
> 2.6khz
in a next version?
>
> Thank you very much Tony.
>
>??
>
> 73? John??
N3WT
>
John,
I think you want to direct the request/question
to Alex, not Tony.
Tony is the extremely talented designer of the SR40 V1,
V2, V3, V4,
V5, etc...? Alex is the extremely talented programmer and
author of
Rocky, DxAtlas, BandMaster, IonoProbe, Morse Runner, Ham Cap,
etc...
(www.dxatlas.com)
Phil N8VB
|
Re: Rocky and SSB monitoring
--- In softrock40@..., "n3wtus" <n3wt@a...> wrote:
Tony,
The current version of Rocky is fantastic. Incredible audio quality
with the Soundblaster External 24 Bit soundcard and 96khz sample.
On that rare occaision when I might want to listen to SSB, (yuk), any
chance of adding the option to widen the bandwidth to something like
2.6khz in a next version?
Thank you very much Tony.
73 John N3WT
John, I think you want to direct the request/question to Alex, not Tony. Tony is the extremely talented designer of the SR40 V1, V2, V3, V4, V5, etc... Alex is the extremely talented programmer and author of Rocky, DxAtlas, BandMaster, IonoProbe, Morse Runner, Ham Cap, etc... (www.dxatlas.com) Phil N8VB
|
Tony,
The current version of Rocky is fantastic. Incredible audio quality
with the Soundblaster External 24 Bit soundcard and 96khz sample.
On that rare occaision when I might want to listen to SSB, (yuk), any
chance of adding the option to widen the bandwidth to something like
2.6khz in a next version?
Thank you very much Tony.
73 John N3WT
|
John H. Fisher
Alex, VE3NEA