Specification
Specifications apply at 18º - 28º after one hour warm-up, at maximum output into 50Ω.
FREQUENCY
Frequency Range: 0·005Hz to 5MHz in 7 overlapping decade ranges with adjustment by
coarse and fine verniers.
Vernier Range: 1000:1 on each range.
Frequency Display: Auto-ranging reciprocal measurement giving 4-digit resolution down to
10Hz (to 1Hz on the 5Hz range); resolution is fixed at 0·01Hz below 10Hz
(0·001Hz below 1Hz on the 5Hz range).
Accuracy is ± 1 digit to 2·1Hz (to 0·21Hz, Symmetry off, or to 0·42Hz,
Symmetry on, on the 5Hz range); below this the accuracy is ± 1% of range
full scale (unspecified with Symmetry on).
Frequency Locking: With vernier setting between 10% and 100% of range maximum, frequency
can be locked to the crystal reference to maintain it at the displayed value ±
0·01%.
WAVEFORMS
Waveform specifications apply for the top decade of each frequency range.
SINE
Distortion: Less than 0·5% on 500Hz, 5kHz and 50kHz ranges; less than 1% on 5Hz,
50Hz and 500kHz ranges; all harmonics >25dB below fundamental on
5MHz range.
Amplitude Flatness: ± 0·2dB to 200kHz; ± 2dB to 5MHz.
TRIANGLE
Linearity:
Better than 99% to 200kHz.
SQUAREWAVE
Rise and Fall Times: <45ns.
Mark-Space Ratio: 1:1 ± 1% to 100kHz.
DC
Range: ± 10V (unterminated).
SYMMETRY
Symmetry Range: Variable typically between 1:9 and 9:1 (on top decade of each range),
frequency divided by 10 when Symmetry is selected.
MODULATION MODES
Modulation can be used with all waveforms and at any frequency.
Sweep
Sweep Mode: Internal: linear or logarithmic; sweep Start and Stop frequencies
displayed at a press of a button.
External: linear.
Sweep Width: Up to 1000:1 within each range.
Sweep Rate: Internal sweep rate adjustable from typically 20ms to 20s.
External Sweep: By signal applied by SWEEP IN/OUT socket.
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