Date   

Re: new guy...

josephrot
 

Over here, it's Hz. Example being FM broadcast band, 250000 is a good average filter width, stereo signal, hence 250K, which is about right for high-quality FM receiver.

Some say 100K, but that's too narrow, and clips the band too much.

Joe

--- In SDRSharp@yahoogroups.co.uk, "dconsul" <dconsul@...> wrote:

Just getting started with SDR....works well so far...I was wondering, SDR# Filter bandwidth control....how is that calibrated, in Khz,or Hz...or is just a relative number...the other issue is frequency calibration, is the received frequency at the center of the display, in order to have the signal in the bandpass....cheers Doug/VE7LFL


new guy...

dconsul
 

Just getting started with SDR....works well so far...I was wondering, SDR# Filter bandwidth control....how is that calibrated, in Khz,or Hz...or is just a relative number...the other issue is frequency calibration, is the received frequency at the center of the display, in order to have the signal in the bandpass....cheers Doug/VE7LFL


Re: [SDRSharp] Re: RDS PI code possible?

Roberto Rizzardi <robertorizzardi@...>
 

It would be very useful to have the decoding of picode directly on the SDRSharp.
Meanwhile, the new version of Multipsk added decoding rds data (picode included) via sound card and TCP / IP with the dongle FunCube Pro +, Softrock and RTL-SDR.
A test on my blog: http://diarioradio.blogspot.it/2013/08/decodifica-fm-rds-con-multipsk.html

Roby

Il 11/08/2013 10.20, tvdxrools ha scritto:

 

I agree with Paul pi code would be a good addition cheers David

--- In SDRSharp@..., "aceblaggard" wrote:
>
> Is it possible to display the FM station PI code alongside or instead of the PS information?
>


--
Roberto Rizzardi
SWL I/0216/GR
Porto S. Stefano (GR) Italy
Lat 42N26 - Long 11E07 - Locator grid JN52NK
Receivers: ICOM IC-R71E
Sangean ATS909 with 2x80kHz Murata filters in FM
RTL-SDR RTL2832U+E4000 usb tuner with SDRSharp software
Antennas: Indoor self-made single-turn 75 cm diameter coax loop
Indoor self-made MW-SW 75 cm side square tunable loop
15 meters outdoor random wires with RF System Magnetic Longwire Balun
Telescopic and 7 meters indoor wire antenna
Dual-band VHF/UHF vertical antenna without radials
Website: http://diarioradio.blogspot.it/
Skype - Twitter: robybenjy


Re: [SDRSharp] From a SDR Grapevine...

Ralph A. Schmid, dk5ras
 

Well, my USRP1 together with gqrx shows 8 MHz of bandwidth at a CPU load of about 50%; i5 in my MS Surface pro. So there still is some power left for new toys J

 

Ralph.

 

From: SDRSharp@... [mailto:SDRSharp@...] On Behalf Of Alberto I2PHD
Sent: Tuesday, 13 August, 2013 17:14
To: SDRSharp@...
Subject: Re: [SDRSharp] From a SDR Grapevine...

 



You will need a lot of CPU power only when you are going up with the sampling frequency after the DDC.
For example, the latest DLL from Elad optionally can send a chunk of 6 MHz of band to the PC.
While this has the positive aspect of showing you about 4.8 MHz of alias-free bandwidth into which
perform your software-side tuning, this also means that the PC has to cope with 3 x 2 x 6e6 = 36 Mbytes/sec
of data. While this is still (barely) within the capabilities of an USB2 high speed interface, all those data
must be taken care of by the CPU.  Here an i5, or better yet, an i7 is mandatory, preferably one of the
new chips of the Haswell family.

73  Alberto  I2PHD






Re: [SDRSharp] From a SDR Grapevine...

Andrew \ Dobie\ Koch <k9ldt@...>
 

It sounds like the next generation of SDR dongles should use USB 3.0, or better yet Thunderbolt, instead of USB 2.0.

http://en.wikipedia.org/wiki/USB_3.0
http://en.wikipedia.org/wiki/Thunderbolt_(interface)

USB 3 has a max of 5Gbps and Thunderbolt 20Gbps. Couple that with a fast enough processor and memory, and you could easily cope with 6MHz, 10MHz, or even more, of bandwidth.

Andrew - K9LDT

On 8/13/2013 11:14 AM, Alberto I2PHD wrote:
You will need a lot of CPU power only when you are going up with the sampling frequency after the DDC.
For example, the latest DLL from Elad optionally can send a chunk of 6 MHz of band to the PC.
While this has the positive aspect of showing you about 4.8 MHz of alias-free bandwidth into which
perform your software-side tuning, this also means that the PC has to cope with 3 x 2 x 6e6 = 36 Mbytes/sec
of data. While this is still (barely) within the capabilities of an USB2 high speed interface, all those data
must be taken care of by the CPU.  Here an i5, or better yet, an i7 is mandatory, preferably one of the
new chips of the Haswell family.

73  Alberto  I2PHD




Re: [SDRSharp] From a SDR Grapevine...

Alberto I2PHD
 

You will need a lot of CPU power only when you are going up with the sampling frequency after the DDC.
For example, the latest DLL from Elad optionally can send a chunk of 6 MHz of band to the PC.
While this has the positive aspect of showing you about 4.8 MHz of alias-free bandwidth into which
perform your software-side tuning, this also means that the PC has to cope with 3 x 2 x 6e6 = 36 Mbytes/sec
of data. While this is still (barely) within the capabilities of an USB2 high speed interface, all those data
must be taken care of by the CPU.� Here an i5, or better yet, an i7 is mandatory, preferably one of the
new chips of the Haswell family.

73� Alberto� I2PHD



From a SDR Grapevine...

josephrot
 

Now we hear rumor and more than of next-generation SDR chips...

Solid word is, the "next gen" SDR components will call for i3 and i5 level Intel and AMD CPU's able to do he workloads. I suspect that current i3 and i5 based dual-or-more-cores will do nicely, but a few of the SDR guru's say "well, likely, for now, but please look at...".

It should NOT be hard for the SDR software players to induce dual-or-more-cores to turn on and accept SDR-related work, and that should be the key IF the next-gen is that "power hungry."

As of now, I don't THINK that the up-coming SDR + u-converter on one card is really next-gen or considered same by the so-called SDR guru's. Yet, it appears that the "next generation" SDR will place more "load" on the PC/Mac OS, meaning the motherboards.

Why else would the powers that be "recommend" users look now to beefier newer i3 and i5 CPU-based units, even going so far as to "recommend" specific CPU's like i5 3xxx series, although for now, these recommendations are supposedly for the so-called next generation SDR chips. ?

IF they can't translate more "workload" to the actual SDR chips, be they dongle or circuit-board based next generation, than that tells a tale of where the expected workload is or will be intended to wind up.

Of course, history may change, workloads may shift, yet we users, designers and distributors of SDR really had better start discussing now, not after the fact.

Joe Rotello / Knoxville, TN


Re: [SDRSharp] 2 versions of Zadig ?

John
 

Yea, right... neat Alan

So how come the XP driver is not included with the
the install.bat ?

No don't answer :)

I've just spent 2 hours on the twisted pair
trying to help an elderly Ham to install the Zdiag driver,
only to be told that it didn't install.
An hour later, he's given up, and my brain hurts :-;)
So we zip the xp driver and email it to him..
coz the only archives I can find on Int need 7-zip.

Good night

John

On 13-Aug-13 9:47 PM, Alan wrote:

----- Original Message -----
Subject: [SDRSharp] 2 versions of Zadig ?



Can someone explain the difference between these two zadig exe files.

zadig.exe

and

zadig_xp.exe

John

You could almost guess... _xp for XP

Alan


------------------------------------

Yahoo! Groups Links




Re: 2 versions of Zadig ?

josephrot
 

John...

The answer is in your question and file names.

XP one is for Windows XP use, the non-XP one seems to operate well in Win 7 and Win 8, both 32 and 64bit OS's.

Joe

--- In SDRSharp@yahoogroups.co.uk, John <gielisj@...> wrote:


Can someone explain the difference between these two zadig exe files.

zadig.exe

and

zadig_xp.exe


tar..
John


Re: [SDRSharp] 2 versions of Zadig ?

Alan
 

----- Original Message -----
Subject: [SDRSharp] 2 versions of Zadig ?


Can someone explain the difference between these two zadig exe files.
zadig.exe
and
zadig_xp.exe
John

You could almost guess... _xp for XP

Alan


2 versions of Zadig ?

John
 

Can someone explain the difference between these two zadig exe files.

zadig.exe

and

zadig_xp.exe


tar..
John


Re: [SDRSharp] query on size of recorded file

jdow <jdow@...>
 

On 2013/08/12 19:29, John wrote:
Hi group

I want to record an 8 bit Baseband file
while looking at a particular VHF frequency.

If I reduce the 2 meg spectrum window by
using the zoom slider, to say 1 MHz,
will this reduce the recorded file size?
No.

I'm still learning to use the commands within.
I also want to record the time-stamp in the waterfall.
Not done - not really feasible, either.

If I enable both Baseband & audio, will I have maximum
use of the recording function..

Is that too much to ask for with the SDR# s/w?
Basically yes.

cheers

John
{^_^}


Re: [SDRSharp] Re: SDR Sharp Plug Ins causing error

jdow <jdow@...>
 

"Method Not Found" usually means versionitis exists somewhere.

Is .NET 3.5 present and up to date?
Is the plugin being used with the version(s) of SDRSharp it expects?
There might even be a chance that a plugin was built .NET 4.0 and
that is not loaded.

Break the problem down into pieces. Rather than bulk installing fifty
quadrillion plugins install them one at a time to determine which one
is giving the problem. Then bitch to the appropriate author.

{^_^}

On 2013/08/12 19:03, sdrs.freqmgr wrote:
Hi, what "plugins pack" are you using?

Jeff
--- In SDRSharp@yahoogroups.co.uk, "conspiracyworldwide" wrote:

I have installed the latest version of SDR# and it works well.

I then installed the SDR Plugins pack and when i click on the exe of
SDR it throws up an error that includes the phrase "Method Not Found"
and then something about Step Size

Then SDR crashes with a windows error message

I am on XP and a good PC - i followed all of the steps perfectly but
no matter how many times i install and reinstall the plugins crash SDR

I am really wanting the Scanning Function

Could anyone be kind enough to zip up their working SDR and Plugins
folder and share it with me on here?

Thank you for any help you can give



------------------------------------

Yahoo! Groups Links



query on size of recorded file

John
 

Hi group

I want to record an 8 bit Baseband file
while looking at a particular VHF frequency.

If I reduce the 2 meg spectrum window by
using the zoom slider, to say 1 MHz,
will this reduce the recorded file size?

I'm still learning to use the commands within.
I also want to record the time-stamp in the waterfall.
If I enable both Baseband & audio, will I have maximum
use of the recording function..

Is that too much to ask for with the SDR# s/w?

cheers

John


Re: SDR Sharp Plug Ins causing error

Jeff Knapp
 

Hi, what "plugins pack" are you using?

Jeff
--- In SDRSharp@yahoogroups.co.uk, "conspiracyworldwide" wrote:

I have installed the latest version of SDR# and it works well.

I then installed the SDR Plugins pack and when i click on the exe of
SDR it throws up an error that includes the phrase "Method Not Found"
and then something about Step Size

Then SDR crashes with a windows error message

I am on XP and a good PC - i followed all of the steps perfectly but
no matter how many times i install and reinstall the plugins crash SDR

I am really wanting the Scanning Function

Could anyone be kind enough to zip up their working SDR and Plugins
folder and share it with me on here?

Thank you for any help you can give


SDR Sharp Plug Ins causing error

conspiracyworldwide
 

I have installed the latest version of SDR# and it works well.

I then installed the SDR Plugins pack and when i click on the exe of SDR it throws up an error that includes the phrase "Method Not Found" and then something about Step Size

Then SDR crashes with a windows error message

I am on XP and a good PC - i followed all of the steps perfectly but no matter how many times i install and reinstall the plugins crash SDR

I am really wanting the Scanning Function

Could anyone be kind enough to zip up their working SDR and Plugins folder and share it with me on here?

Thank you for any help you can give


Re: Neat IQ Recording example

Phil <phil@...>
 

--- In SDRSharp@yahoogroups.co.uk, "Alan" <alan4alan@...> wrote:


----- Original Message -----
Subject: AW: [SDRSharp] Neat IQ Recording example


With a clever software decoder that would be nice to have all that stations
decoded LIVE ... (like it is now done in only the passband of one single ssb
channel with psk stations on several digital soft)

Sigi

There is <http://www.walter-dallmeier.de/software-by-dl4rck/rckskimmer/> Does other modes within a SSB bandwidth but, I think, tunes
the radio to suit a search. Not tried that bit yet.
Maybe one day it will take an IQ input like CW Skimmer.

73 Alan G4ZFQ
IIRC, HRP (Ham Radio Pro) has something similar - it can decode multiple streams within the AF spectrum of the radio it's tuned into. It can take a feed from an SDR, with some AFT, and can tune the receiving software if it takes the standard serial IO.

Be interesting to do that with raw baseband - maybe it could be done in GNU- Radio?


Re: Error message

josephrot
 

My, my, no need to be rude or cut the person down about it.

Compare or contrast, my particular, seemingly round-about reply to Ken was to encourage the user to delve a little into how they operated the product.

Hopefully, Ken's got things up and running now.

Joe

--- In SDRSharp@yahoogroups.co.uk, jdow <jdow@...> wrote:

Um, you have rtl_tcp.exe running?

You installed by superior knowledge on the part of person behind keyboard
rather than by reading the page far enough to discover the install script
and are not using the "RTL SDR / USB" source selection?

{^_^}

On 2013/07/29 16:09, W4KRR wrote:


Hello all,

When I click on "Play" in SDRSharp version 1.0.0.1145, I get this message: "No
connection could be made because the target machine actively refused it
127.0.0.1:1234".

What's the remedy for this?

Ken


Re: [SDRSharp] Error message

W4KRR <w4krr@...>
 

All,

Please disregard my "Error Message" question. I sent it out on July 29th,
and it didn't show up in the group until August 11th. I have long since
solved the issue.

Thanks Yahoo!

Ken

-----Original Message-----
From: SDRSharp@yahoogroups.co.uk [mailto:SDRSharp@yahoogroups.co.uk] On
Behalf Of jdow
Sent: Sunday, August 11, 2013 8:55 PM
To: SDRSharp@yahoogroups.co.uk
Subject: Re: [SDRSharp] Error message

Um, you have rtl_tcp.exe running?

You installed by superior knowledge on the part of person behind keyboard
rather than by reading the page far enough to discover the install script
and are not using the "RTL SDR / USB" source selection?

{^_^}

On 2013/07/29 16:09, W4KRR wrote:


Hello all,

When I click on "Play" in SDRSharp version 1.0.0.1145, I get this
message: "No connection could be made because the target machine
actively refused it 127.0.0.1:1234".

What's the remedy for this?

Ken

------------------------------------

Yahoo! Groups Links


Re: [SDRSharp] Re: Error message

Siegfried Jackstien
 

I am sure he accidently clicked on rtl tcp instead of rtl-usb

Dg9bfc

Sigi

-----Ursprüngliche Nachricht-----
Von: SDRSharp@yahoogroups.co.uk [mailto:SDRSharp@yahoogroups.co.uk] Im
Auftrag von josephrot
Gesendet: Montag, 12. August 2013 01:16
An: SDRSharp@yahoogroups.co.uk
Betreff: [SDRSharp] Re: Error message



Ken...

We need more info from you as to what SDR other components you are using
or trying to use with SDRSharp.

"127.0.0.1:1234" means your local computer, local port 1234, but I or we
can't assist until we know more details as to the other items, brands or
SDR chip-set tuner, etc. you are working with.

Joe

--- In SDRSharp@yahoogroups.co.uk <mailto:SDRSharp%40yahoogroups.co.uk> ,
"W4KRR" <w4krr@...> wrote:

Hello all,

When I click on "Play" in SDRSharp version 1.0.0.1145, I get this
message:
"No connection could be made because the target machine actively refused
it
127.0.0.1:1234".

What's the remedy for this?

Ken