BNC 630 User Manual

Changing frequency, Changing level, Changing operating modes

Berkeley Nucleonics Corporation Model 630

Quick Start Guide

1. Apply power to the 630. After a display of the hardware and software versions and serial number, the unit enters the Basic
Sinewave mode of operation.

2. The unit defaults to generating a 1.000000 MHz sine wave at a level of -10.0 dBm.

Changing Frequency

To change the frequency, press the

Right Field Arrow

button once. The cursor will move to the frequency field. The cursor

position is indicated by a flashing digit.

You can change the frequency two different ways. You can enter a new value or you can modify the current value.

To enter a new value, type in the frequency using the numeric keypad. Then press the

MHz

key for MHz, or the

KHz

key for

KHz, or the

key for Hz. The unit will make a double click sound to indicate that a new frequency value has been accepted.

To modify an existing value, use the è and ç keys to position the cursor over the digit you wish to change. Then press the é
or ê key to increment or decrement that digit. Alternatively, you can turn the rotary knob clockwise or counterclockwise to adjust
the digit's value.

Changing Level

To set a new output level, press the

Right Field Arrow

button until the cursor flashes on the right hand side where the level is

displayed.

You can change the level two ways. You can type in a new value or adjust it with the wheel or arrow keys.

To enter a new level, type in the new level value using the numeric keypad. For a negative dBm value, press the

key while

entering the value. Finally, press the

dBm

key to enter the value as dBm or the

Vp-p

mVp-p

keys to enter the new value as a

peak-to-peak voltage. Note: The level you're entering here is considered a LOADED level, i.e. the level that will appear across a 50
ohm load connected to the output.

To modify an existing level value, use the è and ç keys to position the cursor within a field. Place the cursor over the digit you
wish to change and press the é or ê key to increment or decrement the digit. Alternatively, you can turn the rotary knob clockwise
or counterclockwise to adjust the digit's value.

Changing Operating Modes

To select another operating mode, press the blue

Mode

key once. When pressed, the LCD display is cleared and the question:

Mode?

is displayed. The

Mode

key acts as a shift type key in that the meaning of each button on the front panel changes to that

described by the blue wording beneath it. To enter the SWEEP mode, for example, first press the

Mode

key and then press the

number

key.

You can then use the

Field Arrow keys

to move the cursor to the parameter you wish to change. Each numeric value can be

entered or modified in the same manner described above. The user's manual contains a separate chapter for each mode which
describes in detail all parameters on the LCD display.

You may use the One Touch Mode selection keys to quickly switch to the mode indicated on the key.