Drake DTS860 Digital Demodulator ASI Output Only - Manual (Page 6)

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[8] RF Mode button: When the Rf button is pushed, the module will switch from the sleep mode to the frequency
plan editing mode. the LeD display will indicate current Channel number and Rf frequency plan.
Pressing the Rf button while in the frequency plan editing mode, will step through the Rf frequency plans on the
LeD display in the following sequence:
S = StD (CAtV)
i = iRC (CAtV)
H = HRC (CAtV)
A = off Air (Broadcast uHf/VHf)
the display will blink when the display plan does not match the current program plan. use the eNteR button
once the desired plan is displayed to make any changes. if no buttons are pushed within 5 seconds, the DtS860
will revert back to its previously saved setting.
[9] Baud Rate button: industry standard default baud rates based upon the modulation mode selected above
are preloaded. for itu-t J.83 Annex B, the North American digital cable standard, the default rates are:
64 QAm - 5.056941 mbd
256 QAm - 5.360537 mbd
if a different baud rate is required follow the directions below.
When the Baud Rate button is pushed the DtS860 will switch from sleep mode to the baud rate editing mode.
the LeD display will then indicate the baud rates current most significant digit and decimal multiplier.
Pushing the Baud Rate button again while in the editing mode will sequence through the baud rate settings. the
digits and decimal multipliers will be indicated on the LeD display as follows for a 5.360537 mbd example.
56 - 5*1,000,000
35 - 3*100,000
64 - 6*10,000
03 - 0*1,000
52 - 5*100
31 - 3*10
70 - 7*1
When the baud rate digit with multiplier is displayed, pushing either the uP or DN buttons will change the digit in
sequence (0-1-2-3-4-5-6-7-8-9-0…). if the digit doesn’t match the current baud rate in memory, the LeD display
will blink (digit and multiplier). if the baud rate does not match the current baud rate, the LeD display will blink
(digit only).
to exit the baud rate editing mode, either push the eNteR button which will invoke any changes made, or if no
buttons are pushed within a 5 second period the DtS860 will revert back to its memory settings.
[10] SNR/QAM-8VSB button: Pressing the SNR button once will switch the DtS860 out of sleep mode and into
the SNR display mode. While displaying the current SNR, pressing the SNR button again will switch to the input
modulation edit mode. the display will now indicate the current modulation setting (xxxQAm or xxVSB).
Pressing the SNR button once more, the DtS860 will begin to scroll through the different modulation modes
available. input modulation modes will show on the LeD display in the following sequence:
_8 u -8VSB mode
64 B - 64QAm-B
56 B -256QAm-B
64 A - 64QAm-A
28 A - 128QAm-A
56 A -256QAm-A
Should the indicated input modulation mode not match the current mode, the LeD display will blink. to exit the
editing mode use the eNteR button to invoke any changes or if no buttons are pushed within 5 seconds, the
DtS860 will revert back to its previously saved state.
[11] PROG MON MINI-USB CONNECTOR: used to interface to a computer in order to reprogram the unit with
firmware or software changes.
Front Panel Controls (continued)