Operating instructions

GENERAL INFORMATION
1-8 46882-311D
Accuracy ±7% ±1 digit, for mod freq of 1 kHz,
CW 1.5 MHz to 400 MHz.
±10% ±1 digit for mod freq of 50 Hz to 5 kHz,
CW 1.5 MHz to 400 MHz.
±15% ±1 digit, for mod freq of 50 Hz to 15 kHz,
CW 1.5 MHz to 400 MHz.
Distortion Less than 2% at 1 kHz for 30%, CCITT Weighted
Modulation Frequency Range 20 Hz to 20 kHz
Amplitude Modulation - External
Input impedance Nominally 10 kΩ in parallel with 40 pF
Frequency Range As internal AM
Modulation Frequency Range As internal AM
Sensitivity 1.0 V RMS for 0 to 100% AM
Frequency Modulation - Internal
Frequency range 400 kHz to 1.05 GHz
Maximum deviation 75 kHz
Indication 3 digits
Setting Keyboard entry, delta increment / decrement function and rotary
control
Accuracy † ±5% ± 10 Hz at 1 kHz modulating frequency
±10% at modulating frequencies from 50 Hz to 15 kHz.
Distortion Less than 1% at 1 kHz for deviation of 5 kHz, CCITT Weighted.
Resolution 25 Hz
Pre-emphasis 750 µs selectable
Mod Frequency Range 20 Hz - 25 kHz
Frequency Modulation - External
Input impedance Nominally 10 kΩ in parallel with 40 pF
Frequency Range As internal FM
Modulation Frequency Range DC to 100 kHz
Pre-emphasis 750 µs selectable
Sensitivity 1 V RMS for 0 to 75 kHz deviation
Microphone Input
Input Level 2 mV to 200 mV (AGC levelled)
Input Impedance Nominally 150 Ω
Press To Talk (PTT) When using the optional microphone in Tx Test mode, the PTT
will switch instrument to Rx Test.
† At low modulation levels the residual AM / FM may become significant
Audio analyzer
Audio Voltmeter
Input Impedance Nominally 1 MΩ in parallel with 40 pF
Frequency Range DC and 20 Hz to 50 kHz
AC only 20 Hz to 50 kHz
Polarized DC (below 1 Hz)
Level Ranges 0-100 mV to 0-100 V RMS in a 1,3,10 sequence
Resolution 1 mV or 1% of reading
Indication 3 digits and barchart
Accuracy ±3% ±3 mV ± resolution