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User Manual
Rev. 1.0 - 29/11/05
PTRL NV/3 & RXRL NV/3
9.5.5 Screen #02: Forward and reflected power
This screen shows actual output forward power available at the time and associated
reflected power. On UHF/SHF radio links (those in the 1400-2600 MHz range),
reflected power normally is not detected.
9.5.6 Screen #03: Multiplex signal level (Output modulation)
This screen shows the current modulation peak in dB for 75kHz and actual deviation
in kHz. A pseudo-analogue bar changes to reflect modulation, while a marker denoting
achieved peak remains displayed for 1 or 2 seconds. A vertical bar (I) on this line
indicates 0dB position.
9.5.7 Screen #04: Right and left channel levels in dB
This screen shows the current peak level in the left and right channel signals expressed
in dB for actual 75kHz modulation.
Reading is extremely accurate with actual audio signals. However, some repetitive
test signals, for instance sinusoidal signals, especially at very low audio frequencies
may cause aliasing with the steady-sampling rate analogue to digital converter, leading
to unstable readings. In this case, the total MPX modulation reading in the previous
screen provides a stable, accurate measure of modulation.
9.5.8 Screen #05: LH and RH channel levels with analogue sliding bar
Dir Power: 4.0 W
Refl Power: 0.0 W
MPX 75.0kHz + 0.0dB
############# O|
LEFT level - 3.0dB
RIGHT level - 4.5dB
L########### O |
R######### O |
Summary of Contents for PTRL NV/3
Page 1: ...PTRL NV 3 RXRL NV 3 User Manual Volume 1 Manufactured by Italy...
Page 4: ...PTRL NV 3 RXRL NV 3 ii User Manual Rev 1 0 29 11 05 This page was intentionally left blank...
Page 8: ...4 52 User Manual Rev 1 0 29 11 05 PTRL NV 3 RXRL NV 3 This page was intentionally left blank...
Page 55: ...51 52 User Manual Rev 1 0 29 11 05 PTRL NV 3 RXRL NV 3 10 Ensemble View 10 1 PTRL NV 3...
Page 56: ...52 52 User Manual Rev 1 0 29 11 05 PTRL NV 3 RXRL NV 3 10 2 RXRL NV 3...