DRAKE SDE24 Spécifications télécharger pdf (Page 5)

QAM Modulator:

Any or all of the enabled encoder outputs may be directed to the QAM Modulator by means of the user

selectable program filter.

Output Symbol Rate:

1 to 7 MSps

Modes/FEC:

ITU-A: 16, 32, 64, 128, 256, 512,1024 QAM

ITU-B (DigiCipher): 64, 256, 1024 QAM

I/Q Phase Error:

Less than 1 degree.

MER:

Greater than 38 dB with blind EQ

UP CONVERTER RF OUT

Output Frequency Range:

54 to 1002 MHz

Channel Plans:

CATV STD, HRC, IRC, BROADCAST

Frequency Stability:

± 5 ppm

Output Level Accuracy:

± 1 dB

Output Level:

45 dBmV to 62 dBmV, adjustable

Output Level Accuracy:

± 1 dB

Phase Noise:

-101 dBc @ 10 kHz o set

Broadband Noise:

Less than -12 dBmV (6 MHz BW@

± 12 MHz)

Output Impedance:

75 Ohms, RL 14 dB or better, 54 - 1002 MHz

Spurious outputs:

- 60 dBc from 40 to 1000 MHz

Program Filtering and Grooming: Encoded programs may be disabled or sent to one or both output ports - ASI or QAM, user

selectable. The output timing is restamped and null packets are managed as required.

Multiplexer: Built in multiplexer circuitry combines the outputs of all enabled encoders in an EH24A into multiprogram

transport streams, one to the QAM output and one to the ASI output.

MPEG Program Numbers: MPEG program numbers in the output transport stream by default will be assigned sequentially,

corresponding to the encoder number. The leftmost encoder input, as viewed from the rear panel, will

be # 1. If the Ethernet remote access is used, the MPEG and virtual channel (major and minor) numbers

may be user selected to any desired MPEG-legal numbers and program names, up to 7 characters in

length, may be added.

ASI Output: Any or all of the enabled encoders may be directed to the ASI output by means of the user selectable

program filter. If EAS operation is used, this output can be assigned to loop the EAS alert program to

additional EH24As. It can also loop DTA data.

EH24A CHASSIS

Speci cations (continued)

GENERAL

AC Power:

90 to 264 VAC / 47 - 63 Hz, 70 W maximum

Operating Temperature:

0 deg to + 50 deg C

FCC Approvals:

The EH24A and the encoder modules have been verified as complying with part 15 of the FCC rules.

MECHANICAL

Specifications subject to change without notice or obligation.

SDE24, SDE24A,SDE24EAS, ASII

EH24A

14 1/4" D x 3 1/2" H x 19" W, 9.5lbs

8" D x 1 3/8" W x 3 1/4" H, approx. 0.5 lbs

1 2 3 4 5 6 7 8 9 10 ... 25 26

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DRAKE SDE24 Spécifications Page 5

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