HP 8904A - Page 125

Modulate or Sum the Signals
2-23
A
B
C
D
VOR composite Signal
out 1 9960 Hz
2v
0.0 deg Sine
out 1 30 Hz
2v
0.0 deg Sine
FM 30 Hz
480 Hz 0.0 deg Sine
Off
Application:
VOR (VHF Omnidirectional Range) Navigation Radio Testing
Table 2-7. Instrument Settings for the VOR Composite Signal.
Comments:
1. Adjust the phase of Channel C to vary the bearing. (The
phase accuracy
of the HP 8904A is typically ~t0.05 deg.)
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