There is no way to retrieve the traces once you have deleted them. It's always a good practice to download the traces from the Site Master to a laptop before leaving the site.
The FCC regulates how much output power of any given transmitter. Since this is a fixed quantity, the system designers are forced to squeeze out every bit of performance out of the entire system.
The Site Master goes into a power saving mode after 10 minutes of inactivity. Just press the RUN/HOLD button and the unit will begin sweeping again.
You may calibrate the Site Master with one precision load and make measurements with another precision load. Type "N" loads are specified to be better than 42 dB return loss, and 7/16 Din loads are specified to 45 dB. You can never make a measurement better than the quality of the calibration components being used. This is true for ALL test equipment.
The Code Loader program allows you to keep the installed firmware version of your Site Master current to the current version being shipped. In other words if you had for example, 6 units and they all had different versions, as seen when you turn the box on, then you could make them all current with the latest version.
This is the Site Master temperature icon. It indicates that the internal temperature of your unit has changed enough to make the calibration invalid. When it appears, you should re-calibrate your instrument. You can check the temperature range of your most recent cal by pressing .sys.status.
Files saved with an older version of software tools such as 6.40 can be read and manipulated with version 6.41. Files which were saved with the new 6.41 version can not be read and manipulated with an older version such as 6.40.
Marker and trace data are displayed properly in German and French Regional Settings when "German(Swiss)" and "French(Swiss)" regional selections are made. To select the operational German or French Regional Settings, do the following : Go to Start up Menu - Settings - Control Panel - Regional Settings Select "German(Swiss)" Regional Settings for German users or "French(Swiss)" Regional Settings for French users.
There might be a calibration problem. Have you performed an open/short/load calibration? Check the calibration kit for mechanical damage.
Site Master defaults to having a minimum contrast which often appears blank. Adjust the contrast with the up/down arrow keys until the display appears.
Installation of Windows 2000, Service Pack #1 is required. The Service Pack #1 can be found at: "http://www.microsoft.com/windows2000/downloads/servicepacks">http://www.microsoft.com/windows2000/downloads/servicepacks
Your InstaCal module can be used on any S11xC, S33xC, or later models. InstaCal will not work on the older "B" models or on the S251C.
ND45417 - contact a service center for pricing and purchasing
The cable is a RS232 with 9-pin female connectors on both sides and needs to be a null-modem cable. In an emergency, purchase the following part numbers from Radio Shack. 26-152 and 26-264.
The waveguide calibration uses a 1/8 wavelength offset short, a 3/8 wavelength offset short and a precision waveguide load for calibration. For coax calibration the open and short both causes high reflections back to the Site Master but an open on a waveguide causes minimal reflections to occur although they are about twice as much as the load. The 1/8 and 3/8 offset shorts are used to set the 0 (zero) reference of the Site Master just like the Open/Short for coaxial calibrations.
Anritsu has a USB-to-Serial adapter, part number 551-1691 or customer can order the Earthmate USB Power Adapter directly from DeLORME at "http://www.delorme.com">www.delorme.com.
To measure power greater than +20 dBm an external attenuator is required. The display range of the instrument is -80 dBm to +80 dBm so therefore you can measure up to +80 dBm with a 60 dB external attenuator.
SC5237: DC to 4.0 GHz, 16.4 to 16.8 ohm 6dB +/- 0.25 dB SC5270: DC to 4.0 GHz, 40.66 to 41.1 ohm 20dB +/- 1.5 dB
In HHST go to File>Database>Select the data base you want to open. This will open a window called Site Master Database showing pointing to your database. Display records 1 at a time or display all depending on the version of HHST you are using. Save each record as a .DAT trace file one at a time.
The maximum cable loss one should expect to have an accurate measurement is 10 dB or less. For measurements that exceed 10 dB, the uncertainty increases significantly. The 2 port cable loss measurement technique should be used in these cases.