Promax US TV EXPLORER II, User Manual

Page: 36 / 268

USER’S MANUAL. US TV EXPLORER II
Page 28 01/2008
When the signal is digital, it analyses the modulation type: QAM Annex-B /
QAM Annex-A / QPSK / 8PSK / 8-VSB and all the associated parameters
such as the symbol rate , the code rate , etc.,. and it tries to lock to the signal.
In the spectrum analyzer mode it appears on screen the name of the network
and the orbital position (only in satellite band).
Activates the band exploration function (long pulsation):
The meter explores the entire frequency band to identify the analogue and
digital channels present.
30
Figure 5.- Top panel view.
[30] RF RF signal input
Maximum level 70 dBmV. Universal connector for F/F or F/BNC adapter, with
input impedance of 75
Ω
.
ATTENTION
Use the 10 dB attenuator (AT-010) to protect the RF [30] input
whenever the input signal level is greater than 70 dBmV (3.16 V) or when
suspecting of intermodulation problems.
This accessory allows DC voltages to pass when powering external units as
LNB and amplifiers.