Broadcast Microwave Services Inc CCII-4H Benutzerhandbuch
Broadcast Microwave Services, Inc. – 12367 Crosthwaite Circle – Poway, CA 92064
12
Phone: 800-669-9667, 1-858-391-3050 - Fax: 1-858-391-3049
Email:
support@bms-inc.com
Web:
www.bms-inc.com
CARRY-CODER II Transmitter <EXPERT> Operating Mode Configuration
NOTE: Most users will operate the system in <NORMAL> mode. The <EXPERT> mode provides user control of certain DVB-T
parameter settings. Here is a listing of those parameters in operating menu sequence:
•
Resolution (1/1, 3/4, 2/3, 1/2)
•
GOP Structure (I, IP, IBP, IBBP, 422IBBP)
•
GOP Length (6, 12, 18, 24)
•
Constellation (QPSK, 16QAM, 64QAM)
• Guard
Interval
(1/32, 1/16, 1/8, 1/4)
•
Code Rate (1/2, 2/3, 3/4, 5/6, 7/8)
Certain operating parameters are used on a repeated basis. These settings should be stored in memory as
Configuration Presets 2 through 9. This provides fast restoration of parameter settings that are used most often.
Configuration Presets 2 through 9. This provides fast restoration of parameter settings that are used most often.
A good backup plan is to maintain commonly used parameter settings (i.e., high robustness and maximum power) in a
known configuration preset memory. If a problem occurs that won’t go away, a known good parameter setting can be
recalled from memory. This should help to resolve a problem. Another method is to adjust each parameter one by
one, beginning with changing the operating frequency, to ensure that the link is not being affected by another signal
on your selected operating frequency.
known configuration preset memory. If a problem occurs that won’t go away, a known good parameter setting can be
recalled from memory. This should help to resolve a problem. Another method is to adjust each parameter one by
one, beginning with changing the operating frequency, to ensure that the link is not being affected by another signal
on your selected operating frequency.
The <DEFAULT> option in the RECALL CONFIGURATION Menu will set all the parameters of the CCII to the factory
defaults.
defaults.
OPERATING INSTRUCTIONS
Start-Up Indications
The CARRY-CODER starts with display showing the status of the system. During system initialization, the CARRY-CODER II goes
through self-test of its MPEG-2 encoder, COFDM modulator and RF sections. System initialization 10 seconds and will display as
follows:
BMS Inc. 4 GHz CarryCoder 2
Freq Agile 4940-4990 MHz
Software Ver. 2.01
Resetting /
Freq Agile 4940-4990 MHz
Software Ver. 2.01
Resetting /
At the completion of the initialization process, the display should look like this:
4965.00 MHz
FREQUENCY
4990.00 MHz
FREQUENCY
4990.00 MHz
If the self-test finds that a sub-system does not respond correctly, a status message is displayed on the fourth line of the display.
For example, if the camera is not sending video to the transmitter, the display will include the appropriate message: