Instructions

Page 8
2 Basics of Operation
2.1 External Connections
2.1.1 DC Power Input
DC power to operate and/or recharge the instrument is connected via a 1.3mm power socket
mounted on the right hand side of the instrument.
Use ONLY the power-supply/charger provided by Aim-TTi with the unit. Use of any
other power source will void the warranty.
The red lamp next to the socket flashes whilst charging is taking place and becomes continuous
once charging is complete.
2.1.2 RF Signal Input
The signal to be measured is connected via a standard N connector mounted at the top of the
instrument. The input impedance is 50 Ohms. The maximum useable signal input is +20dBm
or +127 dBuV.
The absolute maximum signal input level is +25dBm or +132dBuV of RF power (approximately
4 volts RMS), or 50V DC.
Applying a signal above this level could damage the unit and such damage would not
be covered by the product warranty.
2.1.3 Demodulated Audio Output
Demodulated audio (when in Zero Span Mode) is available via the built-in speaker, with the
volume level adjustable from within the application. The signal is also provided via a 3.5mm
stereo jack socket mounted at the top of the instrument. Maximum power output is 30 milliwatts
into 32 Ohms.
The signal is mono but connection can be made using either a mono or stereo plug. In the
latter case the signal will be present on both channels. Connecting the jack plug automatically
disconnects the internal speaker.