User manual

RF Explorer User Manual page 10
 Power Level Switch: The Signal Generator includes an internal power switch, with a nominal 3dB
increment on each step. There are a total of 4 steps. When combined with the internal attenuator, a
total of 8 possible power values can be selected.
 Power mode: The Signal Generator describe the step required to enable the RF output signal, at the
selected frequency and selected power level. By clicking on ENTER key the power signal will be
delivered to the RF output port, and the screen will clearly indicate that with RF POWER ON
message.
Please note standard precaution of RF power delivered without a connected load.
 Using the keyboard: In the RF SIGNAL GENERATOR mode screen, the keyboard can be used for easy
and convenient tasks as described below:
o Using buttons LEFT and RIGHT on this screen will increase or decrease the selected
frequency by the amount expressed on the Freq Step value configured in the FREQUENCY
MENU.
For instance, if the Freq Step is configured to 100MHz, clicking on RIGHT will increase the CW
frequency in 100MHz increments everytime the key is pressed, and similarly clicking on LEFT
button will decrease the CW frequency by 100MHz.
An example of two times, 100MHz increment sequence, starting at 5.4GHz on each RIGHT
button click:
IMPORTANT
You must have connected a 50 ohm antenna or RF load before you switch your
transmitter ON.
If you switch the transmitter ON without a proper load, you may damage the RF
module of your RF Explorer Signal Generator, as the power amplifier will not have a
load to feed. Think of the equivalent to an audio amplifier running at full power
with no speakers connected: you are likely damaging the power transistors.
You can use any kind of RF 50 ohm load, including a dummy load, a coaxial with a
50 ohm termination, an antenna, etc. If you use a load different than 50 ohm, the
reflected wave may also damage the power amplifier.