Hello Alex

New version works in 48khz (very briefly checked), 96 khz comes up
but it sounds like there is a much lower sensitivity (there is some
activity on the panadpter but a lot less than on 48khz sampling).
Will check it with a signal gen and tell you what I see(and hear)

No error message!! hurra!!

73 de Joe

I also have a 2 Khz wide unusable portion at the center of the passband. Mine is 30 db above the baseline, and the shape and bandwidth of the spike changes as I tune across the center frequency.

I thought the bandwidth of the unusable section was a bit high, but I have no explanation regarding WHY the shape and amplitude of the center frequency changes as I tune across the center frequency.

I suspect the sound card is set for full duplex (which isn't necessary for the softrock), thus the problem might be feedback? My sound card is a built in one and doesn't appear to be adjustable, except by a registry entry.

Has anyone observed a similar characteristic, or does everyone's amplitude and shape of the response change when they tune across the center of the passband?

Regards,

Art

Very nice, Alex. Considering the quality and
innovative software you are known for, Rocky is a
winner. My only suggestion is a wider filter esp.
since 40m is such a hodge podge of adjacent modes.

Great job.

Eric
KE6US
www.ke6us.com

Alex, VE3NEA wrote:

I have just released Rocky, an SDR program for

SoftRock40.

Rocky is available here:

73 Alex VE3NEA

__________________________________
Yahoo! Music Unlimited
Access over 1 million songs. Try it free.

Thanks.

At 11:56 AM 10/15/2005, you wrote:

Hi Cecil,

the
receiving window is not centered on the Panoramic window, so I can't
see what is below the frequency I'm listening to.

You can move the operating frequency to the center of the display by
dragging the frequency scale (the gray bar under the spectrum).

73 Alex VE3NEA





Yahoo! Groups Links










--
No virus found in this incoming message.
Checked by AVG Anti-Virus.
Version: 7.0.344 / Virus Database: 267.12.0/134 - Release Date: 10/14/2005

Cecil Bayona
KD5NWA
www.qrpradio.com

I fail to see why doing the same thing over and over and getting the same results every time is insanity: I've almost proved it isn't; only a few more tests now and I'm sure results will differ this time ...

Try this also;

Go in the control panel and run the "Sound and Audio Devices"

Make sure all the voice and music devices are the sound card you want.

At 10:31 AM 10/15/2005, josephlevy wrote:

Hello all

Tried Asio4all didn't work for me (still the same error "unable to
start input from usb soundblaster Audigy 2 NX"...).
Anyway as I am intersted in SSB as well, ROCKY has (for the time
being?) only 600 hz max BW. (It's true it has some very intrigueing
promises in auto image elimination and more...)

By the way I use my Audigy USB as the input and use the laptop Conexant
native sound card as output to the speakers but that enables any
digital modes software that can select input source from the conexant
to work fine (including winDRM)on the audio coming from the SR40.

73 de Joe.







Yahoo! Groups Links









--
No virus found in this incoming message.
Checked by AVG Anti-Virus.
Version: 7.0.344 / Virus Database: 267.12.0/134 - Release Date: 10/14/2005

Cecil Bayona
KD5NWA
www.qrpradio.com

I fail to see why doing the same thing over and over and getting the same results every time is insanity: I've almost proved it isn't; only a few more tests now and I'm sure results will differ this time ...

Hi Cecil,

the
receiving window is not centered on the Panoramic window, so I can't
see what is below the frequency I'm listening to.

You can move the operating frequency to the center of the display by dragging the frequency scale (the gray bar under the spectrum).

73 Alex VE3NEA

开云体育

Rocky looks really nice. Started up perfectly, and controls are very easy to understand.
Now I just need my Softrock40, so i can get some sound out of this software.
Guess I?m among the last on the shipping list...

73 de Anders, SM7TJC




Alex, VE3NEA wrote:

I apologize for the problems that Rocky has with some soundcard types. The WDM audio interface is poorly documented, and I had to do some trial and error work to make the code open my Delta44. Other cards may require a bit more work. This depends on your feedback since Delta is the only 24-bit card that I have.

I have made some changes to the code that may or may not solve the problem. V.1.01 of Rocky is now available at - please give it a try.

73 Alex VE3NEA

Hello all.

Had noise and zero spur (DC...) that were wide and strong (rendered a
swat of 2 khz not usable around the LO freq.)

Saw among the photos what N1RX did with a battery driven SR40 instead
of the USB % volt from the PC.

Connected a battery (through a voltage reg.) to the SR40 instead of the
USB connector and that made a much better S/N but not as good as the
one on the picture.(actually a wallwart floating supply is as good)

Then I disconncted the antenna (which is a trap vertival and not
floating) and found out that by just touching the screen the noise
grew, which is a clear indication of a ground loop.

Added an isolation transformer (actually a UNUN) made by threading 10 T.
of twisted enammeled copper wire throgh a small toroid and got rid of
the ground loop.

Now the zero(dc) spur is about -115dbm (which disappears in the band
noise in the afternoon) and very narrow so I get the whole range of
frequencies free and usefull.

Then to make it simpler and more permanent I cut a groove (with a
dremel) around the BandPass filter to isolate it from the SR40 and the
soundcard ground . That is as good as using the trafo.
You can see a photo on the photos section at Joe's folder.

73 de Joe

Was looking over Dan's Small Parts website and came across some 80 meter softrock crystals.

I have no affiliation, either direct or indirect with Dans.

14.271 Mhz, 3.685 Mhz, HC-18, $1.

14.746 Mhz 3.685 Mhz, HC-18, $1.

Enjoy.

Art

On 10/15/05, Leon Heller <leon.heller@...> wrote:

----- Original Message -----

Check the coil connections Those are the most likely cause of the problem if
all the solder joints are OK.

If you have a 40m Tx you could use that for testing, or make a simple test
oscillator if you have a suitable crystal.

I soldered all the connections again and my gnuradio software seem to
pickup something from the little board. There is heavu QRM here in
VU-land now. I connected a long wire as the antenna. Have to check
again tomorrow morning. Thanks a lot folks. Will have to refine the
software. It's not release-worthy yet. Will keep the list updated.

I need to build a test oscillator or get an XG1 next.

--
73 - Ramakrishnan, VU3RDD

Hello all

Tried Asio4all didn't work for me (still the same error "unable to
start input from usb soundblaster Audigy 2 NX"...).
Anyway as I am intersted in SSB as well, ROCKY has (for the time
being?) only 600 hz max BW. (It's true it has some very intrigueing
promises in auto image elimination and more...)

By the way I use my Audigy USB as the input and use the laptop Conexant
native sound card as output to the speakers but that enables any
digital modes software that can select input source from the conexant
to work fine (including winDRM)on the audio coming from the SR40.

73 de Joe.

At 01:05 AM 10/15/2005, you wrote:

Hello Rockers

SNIP

Tried the new Rocky by Alex VE3NEA and regrettably it does not work
with my Audigy (gives a 'unable to start input from SoundBlaster Audigy
2 NX) so cannot test operation at 96 khz. Well I'll wait and see if
more people have the same problem...



Have a nice (Rocky??) weekend de Joe

I had the same problem with the "Rocky" software, and after I installed ASIO4ALL and made it the audio driver, the error then went away. I was using a different sound card, a SB Live 24. You can try it by downloading it from the link below;

< >

I really like the "Rocky" software, it's more adjustable on what you see on the Panoramic display, and very easy to find stations. I also really like the waterfall display, it looks really good. Two misuses, the dB scale is backwards from the way I'm used to seeing it, and the receiving window is not centered on the Panoramic window, so I can't see what is below the frequency I'm listening to. It's a really simple to use software, if you haven't tried it you need to.

Overall we have available a good selection of software to play with, not bad considering the SR-40 was released not that long ago.

Thanks to all the developers.



Cecil Bayona
KD5NWA
www.qrpradio.com

I fail to see why doing the same thing over and over and getting the same results every time is insanity: I've almost proved it isn't; only a few more tests now and I'm sure results will differ this time ...

开云体育

I don't see how you expect to hear any stations without an antenna
connected. You must get some kind of signal into the radio in order
to hear something. Do you have a transmitter that you could connect
to a dummy load? If so, set your transmitter to 7.050 Mhz, or
somewhere near there. Transmit a CW signal into the dummy load, and
see if you can pick it up with the softrock. You will still have to
connect some kind of antenna to the SR. Even a piece of wire of a
few feet in length should do for this test.

GL,

Bruce N1RX

--- In softrock40@..., Ramakrishnan Muthukrishnan
<vu3rdd@g...> wrote:

Hello Folks,

I just got my Softrock40 kit assembled. I also wrote a GNURadio
program to tune around the +-24khz BW. I plugged in the board and

the

green LED glows, but do not hear anything. The coax is not

connected

to the antenna. I checked the signals on clocks with my scope

(which

cannot accurately measure the frequency at the moment, but there

is a

signal there).

Since I do not run Windows at home, and since I do not want to have
too many variables, I am at another place which has a WinXP

machine. I

installed all the software (rocky, powerSDR, powedSDRconsole,
sdradio). Currently I am using sdradio to see whether some signal

is

coming out. I just cannot hear anything other than the carrier at
7056000, which happens to be there even when I take the audio cable
out of the soundcard input.

I do not have any other signal generator like the XG1 being used by
many of you. Is there some way I can verify that the hardware is
working?

The noise floor is at around -100dbm on SDradio.

When I touch the down portion of the PCB near oscillator, the noise
floow rises to -50 dbm. But I still cannot hear any stations.

Again, I

haven't connected an antenna to the cable.

On teh software side, thanks to Cecil and others, I have afew

sample

files, which I hope to make use to test my gnuradio script. If it
works with the files, it should work without any issues with
softrock40 too.

I searched the email archives, looks like Stan has faced similar
problem too. I will be touching up all the solder joints again and
trying and will also try to tune my main rig to oscillator

frequencies

to see if it is working fine.

--
73 - Ramakrishnan, VU3RDD

Hello Folks,

I just got my Softrock40 kit assembled. I also wrote a GNURadio
program to tune around the +-24khz BW. I plugged in the board and the
green LED glows, but do not hear anything. The coax is not connected
to the antenna. I checked the signals on clocks with my scope (which
cannot accurately measure the frequency at the moment, but there is a
signal there).

Since I do not run Windows at home, and since I do not want to have
too many variables, I am at another place which has a WinXP machine. I
installed all the software (rocky, powerSDR, powedSDRconsole,
sdradio). Currently I am using sdradio to see whether some signal is
coming out. I just cannot hear anything other than the carrier at
7056000, which happens to be there even when I take the audio cable
out of the soundcard input.

I do not have any other signal generator like the XG1 being used by
many of you. Is there some way I can verify that the hardware is
working?

The noise floor is at around -100dbm on SDradio.

When I touch the down portion of the PCB near oscillator, the noise
floow rises to -50 dbm. But I still cannot hear any stations. Again, I
haven't connected an antenna to the cable.

On teh software side, thanks to Cecil and others, I have afew sample
files, which I hope to make use to test my gnuradio script. If it
works with the files, it should work without any issues with
softrock40 too.

I searched the email archives, looks like Stan has faced similar
problem too. I will be touching up all the solder joints again and
trying and will also try to tune my main rig to oscillator frequencies
to see if it is working fine.

--
73 - Ramakrishnan, VU3RDD

Check out Yaesu FT101 parts on e-Bay. Just purchased a PT
preselector for $12. The Drake R4-B/C also had a PT front end but
parts are scarce and expensive.

I've seen similar at Fair Radio.

Dick Patten


--- In softrock40@..., KY1K <ky1k@p...> wrote:

I know this is OT (slightly)...sorry.

I have been looking at L/C combinations to allow LF to HF operation
of the softrock. I'd like to have my softrock tune from 100 Khz to

15 Mhz.

Making a wideband tuned circuit is a tall order though, requiring
switches to achieve the wide tuning range (stepped inductors). I'd
like avoid the switches if possible.

In the old days, we could find permeability tuned variable

inductors

that had very wide ranges. But, today, no one seems to have hear of

them.

Does anyone know of a source for permeability tuned inductors??
Hopefully small and reasonably compact.

Any other suggestions regarding wide tuning ranges?

Thanks,

Art

Oooops!

Gotta remember to change addresses when I want to reply to a message that isn't intended for the group...[g]


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.com

Here's what I see with this particular sound card.

57ad20.jpg

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.com