ACT-5X Exciter User Manual
Version 3.0 05/07/2015
Page 16 of 26
Note:
1)
"PCRL" in Advanced User Menu contains 3 bits. Its default value is 1 which means both PCR
function and NULL packet deletion is turned on. It’s only applicable in Legacy mode. In MH mode,
all input streams remain untouched.
a)
Bit2 is the switch of Insert-NULL-Packet.
It's not used now (reserved) because when TS rate is lower than desired rate and FIFO is Almost
Empty (less than 2.5% of its capacity), if the system does not insert NULL packets into the
stream automatically, the whole FIFO will be reset and lose more useful bytes.
b)
Bit1 is the switch of Delete-NULL-Packet.
When value is "0":
If FIFO is Half Full (higher than 50% of its capacity), then the system will DELETE all new
coming NULL packets from the stream automatically, until FIFO is less than 50%.
When value is "1":
If FIFO is Half Full, the system will NOT DELETE any new coming packets.
c)
Bit0:
The switch of Program Clock Reference Correction function
"1" means PCR function is ON;
"0" means PCR function is OFF
2)
"Sw_Up" and "Sw_Down" are a pair of switches which control the "Slow Up / Down" function. If
"Sw_Up" is "ON", when there is a power raise, it will go up gradually. Likewise if "Sw_Down" is
"ON", when there is a power decrease, it will go down gradually too. This "Slow Up / Down"
function is designed for safety consideration and to prevent the transmitter connected from any
possible damage due to the dramatic change of power.
3)
SW_RT establishes the RF ramp up time, with larger numbers producing a slower ramp to full output
power.
4)
NET allows the selection of 10M, 100M, or Auto to optimize networking connections with existing
local networks.
Table 14 MUTE Menu
M_TS
Default
0
Options
0
1
Note:
1)
"M_TS" is the selection of MUTE/PRBS on loss/failure of RF input reception.
M_TS =1: RF Mute on loss/failure of RF input reception.
M_TS =0: Output PRBS instead on loss/failure of RF input reception.
