8
Internal Sweep/Sweep-OUT
Impedance
Sweep Rate Output Level - see Note 1
Minimum Maximum Minimum Maximum
600 Ω typical >5s <10 ms >0.3V <4.5V
Notes:
1. The output level of SWEEP-OUT BNC is proportional to the knob of STOP FREQ.
2. The frequency knob is set to full CCW for start frequency, and set the knob of stop frequency to full CW. The STOP switch is used to
indicate stop sweep frequency. The sweep width is variable up to 100:1 frequency change approximately.
Sweep-OUT (Linear/Logarithmic Selection)
Impedance
Sweep Rate Output Level - see Note 1
Minimum Maximum Minimum Maximum
600 Ω typical >5s <10 ms >0.3V <4.5V
Notes:
1. The output level of SWEEP-OUT BNC is proportional to the knob of LEVEL STOP.
2. The frequency knob is set to full CCW for start frequency, and Set the knob of LEVEL STOP to full CW. The STOP switch is used to
indicate stop sweep frequency. The sweep width is variable up to 100:1 frequency change approximately.
3. Turn SWEEP switch ON and Modulation Switch to off.
Modulation IN-OUT
AM Modulation
INT/EXT Impedance (Typical) Depth Modulation Kob Mod. BNC
EXT 0.6~10kΩ- see Note 3 0~100% FCCW~FCW DC~20kHz- see Note 2
INT 600Ω
0% FCCW 1.06kHz±10%
100% FCW 1.06kHz±10%
Notes:
1. The SWEEP Switch is set to OFF state and Modulation switch ON. The internal modulation frequency is 1.06kHz±10%.
2. To avoid damaging this instrument, ensure that the maximum voltage into this BNC is no more than ± 10 Vp. A 4 Vp-p minimum signal
is required for maximum modulation (FCW). Otherwise the input level is proportional to modulation knob. For greater than 20 kHz
signal, can be used but not specied.
3. The input impedance is 10 kΩ approximate at FCCW of modulation knob, and 600Ω approximate at FCW of modulation knob.
4. The Internal AM mode generates an amplitude modulated signal of xed carrier frequency. An internally-generated sinusoid is used
as a modulating signal to vary the amplitude of a carrier sinusoid. The modulation waveform is not suppressed carrier; i.e. a xed
amount of carrier power is always present in the modulated signal. The External AM mode generates an amplitude modulated signal
of xed carrier frequency. An externally-supplied signal on the MOD-IN BNC is used as a modulating signal to vary the amplitude of
a carrier sinusoid. The modulation waveform is not suppressed carrier; i.e. a xed amount of carrier power is always present in the
modulated signal
FM Modulation
INT/EXT Impedance (Typical) Deviation - see Note 2 Modulation Kob Mod. BNC
EXT 6~10kΩ- see Note 4 0~±10% FCCW~FCW DC~20kHz- see Note 3
INT 600Ω 0~±10% FCCW~FCW 1.06kHz±10%
Notes:
1. The SWEEP Switch is set to OFF state and Modulation switch ON. The internal modulation frequency is 1.06kHz±10%.
2. Deviation is proportional at carrier frequency of 1 KHz and the frequency Knob is xed.
3. To avoid damaging this instrument, ensure that the maximum voltage into this BNC is no more than ± 10 Vp. A 4 Vp-p minimum signal
is required for maximum modulation (FCW). Additional deviation is proportional to the signal level, but the level shall be less than the
limitation. For greater than 20 kHz signal, can be used but not specied.
4. The input impedance is 10kΩ approximate at FCCW of modulation knob, and 6kΩ approximate at FCW of modulation knob.
5. The Internal FM mode generates a frequency-modulated signal of xed amplitude. An internally generated sinusoid is used as a
modulating signal to vary the frequency of a carrier sinusoid. The External FM mode generates a frequency-modulated signal of xed
amplitude. An externally supplied signal on the MOD-IN BNC is used to vary the frequency of a carrier sinusoid.
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