SigDigs

You may check to see if the Jungo device driver is loaded and being utilized by Windows, by going to your DEVICE MANAGER screen in Windows, while the SigDig IIu or III is connected via the network cable and the USB cable.  If you see the Jungo device entry and under it you see the SigDigIIu driver listed without any error indicator, then the driver has loaded correctly.

Check to make sure the USB cable is installed correctly at both ends.

• Substitute the USB cable if you think it may be defective.  A standard USB 2.0 A-B cable may be used.

If you do NOT see the Jungo device and SigDigIIu driver listed, you may try reloading the SigDigIIu device drivers.  Follow the instructions as shown below:

Installing USB Driver Files

• Go to the SigDig III Install folder
• Open the USBDriverFiles folder
• Click on and run the USBDriverInstall.bat file

This will install the two drivers required for the SigDigIII operation using the USB port

Command line prompts (as executed in the USBDriverInstall.bat file)

wdreg -inf windrvr6.inf install

wdreg -inf SigDig2u.inf install

The SigDigII and III  incorporates all the features that made the original SigDig popular, such as deep memory capability (up to 4gb), built-in sampling clocks, combined wide band and narrow band capability, and network connectivity and in later models high speed USB data transfers. In addition, the SigDig II and III offers quite a number of improvements. It has double the maximum clock rate (200 MHz) with more internal clocks (6), several additional acquisition modes, faster data transfer rates (utilizing USB connectivity), playback capability, lower noise and EMI, and an even more rugged case.

With the appropriate receiver, the SigDig II and III works well in the HF, VHF, UHF, microwave and satellite bands. The SigDig digitizers are designed to acquire intermediate frequency (IF) signals from standard surveillance receivers. Any receiver with an IF signal output, centered anywhere from 10 KHz to 200 MHz, will work with a SigDig digitizer. The IF filter of the receiver is used to prevent aliasing.

If you have any questions about using SigDig digitizers with a particular receiver brand and model, or if you would like help in selecting a receiver to use as part of a collection system, please contact us.

SigDig I's can have between 256 MBytes and 4 GBytes of RAM. SigDig II's and SigDig III's can have between 1 GBytes and 4 GBytes. With 4 GBytes of internal snapshot memory, the SigDig II or III can take long gap-free snapshots - over 20 seconds at 200 MHz sampling rate! At lower sampling rates, even longer snapshots can be obtained.

In snapshot mode, the SigDig II or III can continuously acquire a signal to a circular buffer up to 4 GBytes long. During the circular acquisition, the signal activity can be monitored. Once the desired signal is acquired and in memory, the acquisition is stopped, and the digital signal - either the full snapshot or any part of it - can be downloaded for analysis.

Yes. In addition to being a signal capture device, the SigDig II or III can also function as a deep memory arbitrary waveform generator. A signal can either be captured or uploaded into the SigDig II or III snapshot memory. Then the SigDig II or III can play back the signal in memory in either single-shot or looping mode. The memory used for signal storage for playback can be up to the entire 4 GBytes of installed memory.

During normal acquisition, the signal being captured is also routed back through the Signal Output jack. Monitoring this analog signal helps ensure the fidelity of the signal being acquired.

One of the distinctive features of the SigDig II and III is its network interface. Instead of a bus or proprietary interface, the SigDig II and III uses a standard Ethernet interface for both control and data transfers. This completely eliminates the need for special drivers, and is compatible with virtually any laptop, desktop, or workstation computer. Like any network device, the SigDig II and III has an IP address, and functions like a server. In fact, it has a lite web server built in, which is used for configuration and even acquisition using Java applets.

The SigDig III has the same network interface, plus has a USB (Universal Serial Bus) for higher speed data transfers.  Using the USB channel allows for signal files to be loaded or downloaded at a much higher transfer rate than can be achieved via the network interface.  Speeds approaching 10x the network transfer rate can be achieved using USB 2.0 ports.

Yes. The SigDig II or III can be connected directly to a single computer using a standard Ethernet crossover cable. Alternatively, the SigDig II or III can be installed on a LAN or WAN as a "signal server". This makes it ideal for remote operations. The factory default IP address can easily be user modified to accomodate your network IP address requirements.  The program SigDigIPSetup.exe is included to allow for the changing of the SigDig IP configuration.

The SigDig-I has internal clocks of, 93.3MHz, 80.0MHz, and 20.0 MHz which will capture 46.6MHz, 40.0MHz, and 10.0MHz bandwidth, respectively. For narrower bandwidths, you can use the built-in digital tuner for bandwidths up to about 2.5 MHz.

The SigDig-II has the same digital tuner, plus internal clocks of 186.6MHz, 128.0 MHz, 93.3 MHz, 80.0 MHz, 64.0 MHz, and 40.0MHz. In each case the bandwidth is 1/2 of the sample rate.

You can also find your bandwidth using our Sample Rate and Bandwidth Calculator.

SIGDIGs are set to IP Address 192.168.1.1

Phoenix system computer LAN settings are:
IP Address: 192.168.1.10
Subnet Mask: 255.255.255.0

If you need to reset to these settings:

Ensure that the TCP/IP crossover is connected to both the computer and the SigDig.

Go to: 'START/Settings/Network and Dial-up Connections/Internet Protocol (TCP/IP)/General
Use the following IP address:
IP Address: 192.168.1.10
Subnet Mask: 255.255.255.0

A software program - Universal SigDig Application or UDSA.exe is provided with the SigDig to allow device control via an intuitive, user friendly GUI and application.  This allows snapshot captures and downloads, as well as file uploading and play back control. A signal viewing display is also provided.  This application program allows for the use of both network access and if available, USB 2.0 high speed data transfers.

For SigDig II and IIu devices:

1. Load the PLAYBACK executable
2. Ensure that you computer Network settings are compatible with the digitizer you will be loading a file to (Start/Settings/Network Setting)
3. Type in the SigDig URL (IP address) of the SigDig (only SD II and SDIIU can load files) you will use for the playback function
4. Select "File Upload" - Enter the name of the file to be loaded
5. Select the "Clock rate" and "Playback length"
6. Hit start - allow the file to fully load
7. Take the "Signal Out" from the back of the SigDig you loaded the file onto to the input of another SigDig (SD I, II, or IIU)

For SigDig III devices:

1. Load the USDA (Universal SigDig Application) executable
2. Ensure that you computer Network settings are compatible with the digitizer you will be loading a file to (Start/Settings/Network Setting)
3. Enter the SigDig III URL - IP Address - and select the check box to "Use USB is available" then click CONNECT
4. Click the Upload File to SigDig button - then enter the file name to be uploaded.
5. When the file upload has completed, click on the Playback button.
6. The uploaded signal file will be played and available through the "Signal Out" BNC connector on the rear of the unit.
7. You may use this signal as the input to another SigDig or other device.