Specifications

3-54 888-2857-001 5/9/13
WARNING: Disconnect primary power prior to servicing.
Section 3 Operation
Platinum VAX-C Series
Figure 3-34 DVB-T Setup Screen 2
Table 3-29 Xmtr Home>Exciter Home>Setup>DVB-T Modulator>Next (screen 2)
Fields Explanation
Network Operation Select MFN (Multi Frequency Network) or SFN (Single Frequency Network).
MFN mode selects operation in a Multiple Frequency Network (transmitters on
different frequencies) which does not require synchronization with the other
transmitters in a network. SFN mode selects operation in Single Frequency
Network (transmitters on same frequency) which requires synchronization with
other transmitters in a network. If SFN is selected a GPS antenna is required
and internal GPS is selected on the PFRU set up screen found on Figure 3-19 on
page 3-33. This applies to every modulation mode that supports SFN.
Output Process Time Enter a value in microseconds (uS). Time settings are used to synchronize the
transmission timing for single frequency networks.
MFN/SFN Static
Delay
This entry appears when the MFN or SFN network option is active. The range is
-10000us...+10000uS. The value can be entered locally or controlled by MIP.
See Time Delay Priority (Local or MIP) below.
Time Delay Priority Choices are Local or MIP. Local uses a locally entered time delay. When MIP is
selected, the time delay is sent via the MIP packet, which is sent over the SFN
network
MIP ERP Display only, in dBm and watts. This entry, as well as the Antenna Gain and
Xmtr Output Power entries, allow the operator to set the ERP of the VAX
transmitter driven system remotely by a value sent in the MIP packet from
Syncrony.
Antenna Gain Enter antenna Gain in dB. This entry allows the ERP for this station to be set
remotely by varying the transmitter output power.
Xmtr Output Power Display only, in dBm and watts.