Operating instructions

OPERATING MANUAL 2945A
46882-311D 1-7
Performance data
Receiver measurements
RF signal generator
Frequency
Range 400 kHz to 1.05 GHz
Resolution 10 Hz
Indication 10 digit display
Setting Keyboard entry, delta increment / decrement function and rotary
control
Accuracy As frequency standard
Output Level
Range Rx Test:
N-Type socket: −141 dBm to −21 dBm
BNC socket: −115 dBm to +5 dBm. (usable to +7 dBm)
Resolution 0.1 dB
Indication 4 digits plus sign (dBm, dBµV, µV, mV, PD/EMF).
Accuracy ± 2 dB for level above −127 dBm on N-Type socket up to 1 GHz
Reverse Power Protection N-Type: 50 W for 10 minutes, normal operation. 150 W for
1 minute at 20°C.
Overload indicated by audible and visual warning.
BNC: 5 W Tripping indicated by audible and visual warning.
Output Impedance Nominally 50 Ω
VSWR N-Type Better than 1.2:1 up to 500 MHz
Better than 1.35:1 up to 1.05 GHz
VSWR BNC Better than 2.2:1 up to 1.05 GHz
Spectral Purity
Residual FM Less than 15 Hz RMS (0.3 to 3.4 kHz) up to 500 MHz.
Less than 20 Hz RMS (0.3 to 3.4 kHz) up to 1000 MHz (with
OCXO)
Less than 22 Hz RMS (0.3 to 3.4 kHz) up to 1000 MHz, over the
range 18 to 28°C (with TCXO)
Harmonics Better than −20 dBc
Spurious signals Better than −30 dBc (±10 kHz to 1.5 MHz offset from carrier
frequency or over range 600-700 MHz).
Better than −40 dBc from 400 kHz to 1 GHz
SSB phase noise (20 kHz offset) Better than −95 dBc / Hz up to 1 GHz
RF carrier leakage Less than 0.5 µV PD generated in a 50 Ω load by a 2 turn loop
25 mm from the case. Output level less than −40 dBm into a
sealed 50 Ω load.
Amplitude Modulation - Internal
Frequency range 400 kHz to 1.05 GHz
AM depth range 0 to 99 %
Resolution 1 %
Indication 2 digits
Setting Keyboard entry, delta increment / decrement function and rotary
control