PowerTek 9010, User Manual

Page: 35 / 75

Output resistance can be set to Low Z or 50 Ω in frequency range 20 Hz to 100 kHz. Low Z range means
output impendence is lower than 0.5 Ω. Fix output resistance 50 Ω is only available for frequency above
100 kHz.
In Pulse mode repeated pulses with defined frequency and duty cycle ratio. Pulse width is displayed on
the screen as well. Output impedance is 50Ω. Select the Pulse mode by pushing the SCOPE key until
screen with Pulse mode is displayed. Following values are available for setting:
- Frequency in Hz
- Amplitude in preselected unit Vrms, Vpk, Vpp, Vavg, dBµ, dBV, dBm
- Duty cycle ratio
Push the OPER key to connect signal to the output terminals. Indicated pulse width is calculated by
formula Δ = 1/f * R/100 [s], where f is frequency of output signal and R is duty cycle ratio in %.
Time marker mode sources time pulses with defined width and adjustable period (frequency). Amplitude
of the time markers can be adjusted in several predefined levels. Output impedance is 50Ω. Select the
Time Marker mode by pushing the SCOPE key until screen with Time Marker mode is displayed.
Following values are available for setting:
- Period in µs, ms, s
- Marker width in terms of duty cycle ratio in predefined levels 1, 10, 20, 30, 40, 50 % up to 4 MHz,
in predefined levels 10, 20, 30, 40, 50 % up in range 4 MHz to 10 MHz and 2 ns width spikes
above 10 MHz
- Amplitude in preselected unit Vrms, Vpk, Vpp, Vavg, dBµ, dBV, dBm in predefined levels 50
mV, 100 mV, 500 mV, 1V peak
Push the OPER key to connect signal to the output terminals (N connector).
Oscilloscope input impedance can be measured by scope option itself. Press R-meter softkey in any
scope option function mode to activate impedance measurement function:
Impedance is measured at HF terminal (N connector). 50Ω oscilloscope inputs shall be measured in
100Ω range, 1MΩ inputs shall be measured in 2MΩ range.
Powertek MC9010 User Manual