Wavetek 39A Maintenance Manual page 6

Tone Switching
Capability provided for both standard and arbitrary waveforms. Arbitrary waveforms are expanded
or condensed to exactly 4096 points and DDS techniques are used to allow instantaneous
frequency switching.
Carrier Waveforms:
Frequency List:
Trigger Repetition Rate:
Source:
Tone Switching Modes:
Gated:
Triggered:
FSK:
Using 2 channels with their outputs summed together it is possible to generate DTMF test
signals.
Trigger Generator
Internal source 0.005 Hz to 100kHz square wave adjustable in 10us steps. 3 digit resolution.
Available for external use from any SYNC OUT socket.
OUTPUTS
Main Output - One for each channel
Output Impedance:
Amplitude:
Amplitude Accuracy:
Amplitude Flatness:
DC Offset Range:
DC Offset Accuracy:
Resolution:
All waveforms except pulse, pulse train and sequence.
Up to 16 frequencies from 1mHz to 10MHz.
0.005Hz to 100kHz internal
dc to 1MHz external.
Usable repetition rate and waveform frequency depend on the tone
switching mode.
Internal from keyboard, previous channel, next channel or trigger
generator.
External from TRIG IN or remote interface.
The tone is output while the trigger signal is true and stopped, at the
end of the current waveform cycle, while the trigger signal is false.
The next tone is output when the trigger signal is true again.
The tone is output when the trigger signal goes true and the next
tone is output, at the end of the current waveform cycle, when the
trigger signal goes true again.
The tone is output when the trigger signal goes true and the next
tone is output, immediately, when the trigger signal goes true again.
50Ω
5mV to 20Vp−p open circuit (2.5mV to 10Vp−p into 50Ω). Amplitude
can be specified open circuit (hi Z) or into an assumed load of 50Ω or
600Ω in Vpk−pk, Vrms or dBm.
2% ±1mV at 1kHz into 50Ω.
±0.2dB to 200 kHz; ±1dB to 10 MHz; ±2.5dB to 16 MHz.
±10V.DC offset plus signal peak limited to ±10V from 50Ω.
Typically 3% ±10mV, unattenuated.
3 digits or 1mV for both Amplitude and DC Offset.
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