JVC TDR6 installation and operation guide DetailsInputConfigFilter allows you set the PCR filter

Command	Description	Parameters / Response Values
LO Freq	Sets the frequency to match your LNB downconverter local	2000 to 15000MHz
	oscillator frequency.
	Note: The IF frequency is the absolute value of the difference
	between the RF frequency and the LO frequency. The
	demodulator has a valid IF frequency in the range of 2150 MHz
	and 950 MHz. Entering values for RF or LO that equal an out of
	range IF frequency value will result in an IF value that is either
	the maximum or the minimum IF frequency.
Code Rate	Sets the Viterbi code rate	■ QPSK: 1/2, 2/3, 3/4, 5/6, or 7/8
		■ 8PSK: 2/3, 5/6, 8/9
		■ 16QAM: 3/4, 7/8
Sym Rate	Sets the demodulator to the frequency of the incoming RF signal.	37500000 sps and 1000000 Sps
	Note: If an out-of-range value is entered the TDR6 will not	To convert symbol rate to data rate, use the
	accept the new value and will revert to the previous value	following equation:
	entered.	Symbol rate x 2 x (188/204) x FEC code rate
	Since the data rate is proportional to the symbol rate, entering a
	data rate value might fail if the corresponding symbol rate is out
	of range.
	Converting a symbol rate to data rate and vice versa may be
	subject to a small rounding error. The error is less than
	0.00001%. It is advisable to use the symbol rate representation
	when entering parameters if a conversion error cannot be
	tolerated.
	In cases where the demodulator is not locking on the carrier, it is
	necessary to add an offset to the symbol rate. This compensates
	for the symbol rate drift. The range of the offset is between
	0.0002% and 0.0006%; in general a value of 0.0004% proves
	successful to lock on the carrier in these cases.
Data Rate	Sets the data rate of the transport data stream	2 to 48Mbps
		To convert data rate to symbol rate, use the
		following equation:
		Data rate x 1/2 x (204/188) x 1/FEC code rate
LNB Power	Sets the voltage of the LNB	Off, 13 V, 18 V
Acq Range	Defines the size of the frequency range over which the	0 to 7500000 Hz
	demodulator will search for the carrier.
Details>Input>Config>Filter: allows you set the PCR filter
PCR Filter	Sets the PCR (program clock reference) filter for normal	■ Normal: set for normal operations
	operations or operations over an ATM network.	■ ATM: set for operations over an ATM network

Details>Input>Status>RF: allows you to query the receive signal Eb/N0 level, the carrier offset, and the current lock status of the demodulator, decoder, and transport stream; this menu only applies to the currently active RF input.

Eb/N0	Query-only; displays the Eb/N0 of the RF receive signal	Displays the value in dB; value is ± 2 dB
	Note: Eb/N0 is only available when	Eb/No values above 16 dB are not significant.
	Details>Input>Config>Select>Input is set to RF.
Offset	Query-only; displays the RF offset.	Frequency in MHz
	The Offset measures the difference, in MHz, between the actual
	carrier frequency received by the TDR6 and the carrier
	frequency the TDR6 calculates by subtracting the LO parameter
	from the RF parameter. For optimum performance, the Offset
	parameter should be as close to zero as possible.
	For more information regarding the offset, refer to the chapters
	on configuration and troubleshooting. Also refer to the appendix
	on the QPSK demodulator.
	Note: Offset is only available when
	Details>Input>Config>Select>Input is set to RF.
Demod	Query-only; displays the lock status of the demodulator	Locked, Unlocked
	Note: Demod is only available when
	Details>Input>Config>Select>Input is set to RF.
Decoder	Query-only; displays the lock status of the decoder	Locked, Unlocked
	Note: Decoder is only available when
	Details>Input>Config>Select>Input is set to RF.
Transport	Query-only; displays the lock status of the transport stream	Locked, Unlocked
Rate	Query-only; displays the output rate for the QPSK demodulator	value in bps

22 01-0870-401B 01/03 Front Panel