5 O
PERATION
Enabling signal modulation
The modulation frequencies provided by the OBS-55
are:
• CW: continuous wave
• 270 Hz modulation
• 1 kHz modulation
• 2 kHz modulation
To select a modulation frequency:
⇒ Press [CW/FMOD] to skip through the available
modulation modes:
CW → 270kHz → 1kHz → 2kHz → CW...
26
OBS-55
JDSU