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AndrewModeratorHi Mike,
We very recently took a look at 8VSB and determined it would require additional work beyond our initial estimate. Additional algorithms would need to be developed to properly demodulate 8VSB. I do not think we have immediate plans to develop this as we are currently working on other projects but I will make a note that you are looking for this functionality. This is very helpful for us when we decide what to work on in the future. Viewing 8VSB would also require a BB60C as it is our only receiver with the necessary bandwidth to capture the signal.
The SA44 has only a few limitations compared to the SA44B. Most notable,
– the SA44B has a preamp
– improved spurious responses with the SA44B
– and sweeps speeds and available RBWs between spans of 200kHz and 200MHz. The SA44B will have faster sweep times and allow smaller RBWs in this range of spans.If you have additional questions, let us know.
Regards,
A.J.
AndrewModeratorHello Sajdenman,
It appears to currently be working this way. I apologize for the inconvenience. I will see if I can fix this for the next release.
Regards,
A.J.
AndrewModeratorHi Sajdenman,
Unfortunately scaling the y-axis is not currently possible. This is something we are looking to address in the near future. Based on your post, I believe you have properly described its current behavior. I apologize for the inconvenience.
Regards,
A.J.
AndrewModeratorHello JosuePareja,
The VSG is not directly able to be controlled in Matlab. You will need to write a small interface between Matlab and our C interface to the VSG to get this to work. The API files are located in the installation directory on your PC, which is probably in the folder C:\ProgramFiles(x86)\SignalHound\VSG25\api. Take a look at the loadlibrary and calllib functions in Matlab for calling into a C DLL on Windows.
If you wish to use Matlab to generate IQ data that you can then load via ARB CSV files, you can do this also. You will need to generate the IQ data in Matlab and then create a compatible CSV file that can be read into our software. You can find several examples of CSV files in the installation directory as well, in the arb_examples folder. Take a look at the “BPSKUnfiltered” or “Chirp” examples for basic examples with text explanations. You will need to adhere to the format exactly otherwise the software will be unable to read the file.
Let us know if you have further questions.
Regards,
A.J.
AndrewModeratorHi Frank,
Yes, all of our spectrum analyzers have internal references. You do not need to provide an external reference unless you desire. Also, when you select “Internal Out” in the file menu, this does mean that you are attempting to output the internal reference on the BNC port, which is not supported for the SA44B.
As for your disconnection issues. Is this a recent issue, or has it always been like this? Basic troubleshooting steps might involve
1) Trying a different USB port on the PC.
2) Checking the USB connector for debris.
3) Swapping USB cables
4) Stopping background processes that might be consuming large amounts of resources.
5) Setting your power option to “High Performance” via the Control Panel->Power Options menu. This is a common solution to random device disconnects.
6) Disabling any anti-virus software.I look forward to your response.
Regards,
A.J.
AndrewModeratorHi Jan,
Thanks for the request. I could see this being very useful. I know we have talked about implementing trace math in the future. I think that would be a good time to add trace normalization as well.
Cheers,
A.J.
AndrewModeratorHello zhubajel,
I apologize, I may not fully understand your question. I will try my best to describe the purpose of the cal files.
The cal files contain the correction information needed for the device to make accurate measurements. The cal files are generated and are different for each device.
Any time you use the API to control the device, the files are stored and read from the ProgramData/ folder. The ProgramData folder is the place Windows expect us to use to store this kind of information.
I have recently emailed you about an issue on a different forum thread, if you would like me to send you the cal file we have for your unit we can so you can verify it is the same as the one pulled from your device. Let me know if you want this in your email reply.
Regards,
A.J.
AndrewModeratorHello zhubajel,
I will be sending you a support email using the one provided in your profile. If this email is not correct, you can email me at aj at signalhound dot com.
Regards,
A.J.
AndrewModeratorHi David,
I’m sorry to hear that. The good news is that we can repair your unit. We typically offer a flat repair fee. If you are certain you have damaged the unit, you can either call us or email lori at signalhound dot com to get a quote and RMA number to send the unit in. Best time to call us is between 8-4 PST.
If you would like to further troubleshoot the issue you can contact justin at signalhound dot com. Justin will be able to help you diagnose your issue.
Let us know if you have any further questions.
Regards,
A.J.
AndrewModeratorHello Mervin,
There are several ways to calibrate the SA44B.
We provide calibration software to the user. You will need several pieces of equipment to perform the test, and you can find the required equipment list in the calibration manual. Both the software and manual can be found on the SA downloads page under “calibration software”.
https://signalhound.com/support/product-downloads/sa44b-sa124b-downloads/There are also facilities that will calibrate the SA44B with various accreditations. We provide a list of facilities on this page,
https://signalhound.com/support/spectrum-analyzer-calibration-services/And finally, you can send the unit back to us for calibration. You can set up a calibration through our facilities by contacting us by phone or email at lori at signalhound dot com.
As for the TG, the only calibration available is through our facilities.
Let us know if you have further questions.
Regards,
A.J.
AndrewModeratorHi Emo,
I apologize, are you pointing out that the arrow buttons are covering the frequency text entry? (or that the arrows are really small?) Are you able to resize the width of the control panel? The new release was supposed to make it so users could do this. I look forward to your response.
Regards,
A.J.
AndrewModeratorHi Jan,
At the end of the Spike installer it states that you will need to install the additional USB drivers found here
https://signalhound.com/sigdownloads/Spike/CDM%20v2.12.00%20WHQL%20Certified.exeHave you already installed this? If you have not, you will need to run the installer as administrator.
I apologize for the inconvenience, hopefully we can get this resolved quickly.
Regards,
A.J.
AndrewModeratorHi NopMicro,
When you say FM demod you are referring to demodulating and playing the resulting audio waveform? The Spike software has an audio player in the utilities file menu. We are also compatible with an SDR application called HDSDR which has much more extensive audio playing capabilities. You can find the files and setup guide for HDSDR compatibility at this link.
https://signalhound.com/sigdownloads/Other/HDSDR-SignalHound.zipRegards,
A.J.
AndrewModeratorHi Tishers,
Good timing, I am looking at QAM64 today. QAM256 will likely follow if I can get QAM64. I’ll take a look at your other suggestions as well. Out of curiosity, which view where you imagining a horizontal line displayed on? The spectrum plot?
Regards,
A.J.
AndrewModeratorHi Paul,
Thanks for calling in. You have my contact info if you have any questions in the future.
Regards,
A.J.
AndrewModeratorHello rtcjss,
I personally have never used CVI but I have seen these types of issues before. You are seeing this because our API is not 100% C compatible. It is going to complain about missing typedefs on the enums and structs and maybe a few other things. I think if you addressed this, the CVI compiler would be able to parse our header file without errors. This is just a guess though. Without CVI, I cannot test this.
Regards,
A.J.
AndrewModerator- This reply was modified 8 years, 1 month ago by
Andrew.
Hi Steve,
As of today, we have released a new version of Spike which will allow you to adjust the reference oscillator in your SA44, unfortunately it will not work with your TG.
Grab the new version of Spike at http://www.signalhound.com/Spike and check out the “Timebase Adjustment” under the utilities menu. You will input a CW into the RF input of the SA44, specify its power level and frequency and you can make one click adjustments. This should get your SA calibrated. It is a software calibration and can be reversed anytime by clearing it through the same utility.
Hope this helps, let me know if you have further questions.
Regards,
A.J.
AndrewModeratorHello facotl,
Is the LED on the device solid green? Have you tried a different usb port? When the device is plugged in, check under the device manager->Universal Serial Bus Controllers tab and you should see “USB Serial Converter A” and B. If they are there, right click -> Properties. Under the advanced tab, ensure the “Load VCP” checkbox is not selected.
Also, is this the first computer you have tried? If it is possible to try on another computer, it would help rule out certain issues, like a bad cable/hardware.
Let’s start with this, I look forward to your response.
Regards,
A.J.
AndrewModeratorHi Everyone,
Today we are releasing version 3.1.0 of the Spike software. With this comes EMC pre-compliance measurements and features for the BB60A/C users, frequency difference meter utility, temporary time base adjustment utility, ability to hide control panels, and we moved the API files out of the installer into their own separate download. Check out the change log on http://www.signalhound.com/Spike for more details.
Also keep an eye out for the next update where we will be attempting to resolve many of the text scaling issues for high DPI displays.Regards,
A.J.
AndrewModeratorHi bbowar,
I apologize, I am currently out of town and cannot verify, but I believe changing the values 486111.111 to 80.0e6 will correct the equation for the BB60C.
Regards,
A.J.- This reply was modified 8 years, 1 month ago by
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