User's Guide

most sensitive setting. Typing the character ‘g’ on the terminal’s keyboard will place the user in

this mode.

Figure 8 - Terminal Screen after Executing 'g' Menu Item

Aiming the Unit

For best results, the unit should be aimed so that the white-faced plastic front is perpendicular to

the line-of-sight between the unit and the target.

Chapter 3 – ADVANCED MENU OPTIONS

There are seven other advanced options available to the user if a custom software interface is to

be used.

DAC Menu Item

The DAC Menu is the menu that allows the user to change sensitivity levels on the SPIDER-

650’s internal DAC (digital-to-analog converter). If the user wishes to change one of the 5 bias

voltage values, he/she must first enter the ‘v’ key followed by the number corresponding to the

appropriate run number. For example, if the user wants to change the bias value for the third

transceiver run, a ‘v’ will be typed. This will bring up the following display:

select run number 1-5 , d = display voltages , q=end

enter voltage as 2 digit hex

Then the user hits the ‘3’ key and will see:

V3= 0x

show up on the terminal to indicate that the DAC value for the third run should be entered. This

is prompting the user to enter a 2 digit hex value between 0x00 and 0xFF. Only values after the

‘x’ should be entered.