User's Manual

ManualsBrandsVecima Networks ManualsElectronics1.9GHz Base Station Transceiver

VCom Inc.

BST1918 Manual; ml_bst1918_02 (Sept 2005)

Approved: C.H.

1.3 Specifications

BST1918 BASE STATION TRANSCEIVER SPECIFICATIONS

TRANSMIT

IF Input Frequency 555.0 -570.0MHz (2MHz channels)

555.2 - 569.8MHz (6MHz channels)

Bandwidth Channel size: typical 6MHz, adjustable through WM404x

IF Input Level +10 dBm nominal (total power)

IF Detector Accuracy ±1.0 dB typical

RF Output Frequency Range Block B: 1950.0 – 1965.0MHz, (2MHz channels)

1950.2 – 1964.8MHz, (6MHz channels)

Block C: 1975.0 – 1990.0MHz, (2MHz channels)

1975.2 – 1989.8MHz, (6MHz channels)

Frequency Response (any 6 MHz band) 1.0 dB peak-peak

Rated Output Power at Antenna Port +31 dBm (QPSK, 16QAM, 64QAM)

Output Power Stability ±1.0 dB over frequency and temperature

Output Power Control Range 20.0 to 32.0 dBm

Output Power Control Modes Closed-loop on specified output power or open-loop on

specified gain (compensated for IDU cable loss

and temperature variations)

Spectral Mask Compliant with FCC CFR 47 Part 24

Phase Noise <-51 dBc double sideband integrated over 10 kHz to 2.5 MHz

MER (equalized) ኑ38 dB

IF Cable Compensation Range 15 dB

Spectral inversion No spectral inversion

RECEIVE

RF Input Frequency Range 1870-1885 MHz, Block B

1895-1910 MHz, Block C

Frequency Response (any 3 MHz band) 0.6 dB peak-peak

IF Output Frequency Range 27-42 MHz

Noise Figure at Antenna Port <4 dB including duplexer loss at maximum gain

Integrated Gain 55 dB nominal

Gain Control Range ±10 dB

Output Third Order Intercept Point: +20 dBm at maximum gain

Phase Noise <-95 dBc/Hz @ 10 kHz

<-51 dBc double sideband integrated over 10 kHz to 2.5 MHz

IF Detector Accuracy ±1.0 dB typical

Spectral inversion No spectral inversion

Image Rejection > 75 dB

GENERAL

Remote Control Interface Bi-directional signalling with WM4040

Connectors N female, 50 ohms

Power Requirement -40.5 to –57VDC operational

Power Consumption 60W maximum

Operating Temperature Range 10°C to 40°C

Mounting Standard 19” (48.3 cm), 2U (3.5”) rack space (3U in dual

configuration)

Dimensions 19” (w) x 14.9” (d) x 3.5” (h) (48.3 x 37.9 x 8.9 cm)

Weight 30.8 lbs. (14kg)

Specifications subject to change without notice.

The DOCSIS

acronym belongs to CableLabs