GENERAL INFORMATION
1-14
Audio generators
Frequency
Frequency Range 5 Hz to 33 kHz
Setting Keyboard entry, delta increment / decrement function and rotary
control
Indication 5 digits
Resolution 0.1 Hz below 3.25 kHz
1 Hz above 3.25 kHz
Accuracy 0.01 Hz below 180 Hz
0.1 Hz above 180 Hz
Level
Level Range 0.1 mV to 4 V RMS
Setting Keyboard entry, delta increment / decrement function and rotary
control
Indication 4 Digits
Resolution 0.1 mV below 409 mV
1 mV above 409 mV
Accuracy ±5% ±resolution 50 Hz to 15 kHz
Output impedance Nominally 5 Ω (minimum load impedance 25 Ω)
Distortion Less than 0.5 % at 1 kHz
Less than 1 % from 50 Hz to 15 kHz
Signaling Encoder / Decoder
Sequential Tones Functions including revert
User Defined Tones
Encodes and decodes up to 40 tones, CCIR, ZVEI, DZVEI, EEA,
EIA or user-defined. Any of the tones may be extended.
Continuous, burst and single-step modes available. Up to two
frequency plans may be defined and stored within the
instrument for sequential tones.
Any of the standard tone frequency plans may be copied to the
user defined plans and modified.
Tone length 20 ms to 20 s.
Standard tone frequencies may be selected from a menu.
DTMF Generation and decoding of DTMF tones.
DCS Generation and decoding of Digitally Coded Squelch, DCS.
POCSAG Generation of POCSAG code CCIR No. 1 Rec 584. Bit rates from
400 to 4800 bit/s. Inversion available.
Audio Monitor Demodulated signals and audio signals may be monitored via the
internal loudspeaker and via the accessory socket output on
the front panel.
Frequency standard
Internal Frequency Standard (TCXO)
Frequency 10 MHz
Temperature stability Better than 0.5 in 10
6
, 0 to 40°C (32 to 104°F);
0.6 in 10
6
, 0 to 50°C (32 to 122°F).
Ageing Rate Better than 1 in 10
6
per year
Warm up 1 minute to specified accuracy
External Frequency Standard Input
Frequency 1, 2, 5 and 10 MHz
Input Level Greater than 1 V peak to peak
Input Impedance Nominally 1 kΩ
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