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1900MHz CDMA+WCDMA Dual-mode Split Band

Selective RepeaterRD-1932

Information contained in this document is subject to confirmation at time of ordering.http://www.comba-telecom.com 

Issued: 28Jan10Control: 1-1-1

1/3 

Features

•  Dual-mode design, support separate or simultaneous CDMA, WCDMA input

•  Support 1 variable sub-band for CDMA and 1 variable sub-band for WCDMA across

60MHz PCS band

•  Have separately RF ON/OFF switch for sub-band and channel

•  2W total output power

•  Friendly and easy OMT interface via RJ45 connection and Internet browser.

•  Integrated optional wireless modem for remote configuration, monitor and control

•  Internal backup battery keeps the alarm unit running for up to three hours after

power failure

•  Optional Operation and Management Center (OMC) is available for remote

operation and maintenance for big volume repeaters

•  Designed for all outdoor application - waterproof, damp-proof and omni-sealed

(IP65) 

LNA1

LNA2

Service

AntDonorAnt

Mobile

PowerSupply

AlarmIndicator Main Control Unit

ExternalPowerOMT

Li-ionBATT

Modem

DT MT

OMTComputer with

Data card

WirelessModem

OMC

PA1

PA2

DL Band SelectiveModule

DL Band SelectiveModule

UL Band SelectiveModule

UL Band SelectiveModule

BTS

 

Product Descr ip t ion

RD-1932 Split Band Selective Repeater is designed for outdoor installation/indoor coverage in 1900MHz PCS band. Theunit designs with 2 adjustable sub-bands to allow increase flexibility. CDMA and WCDMA sub-bands are 1.25MHz-10MHz.

It supports the ability to amplify all kinds of customizable frequency allocation by CDMA and WCDMA signal without any

hardware change, especially for customer whose spectrum allocations are not continuous and/or who have different

frequency allocation in different regions. With sub-band RF ON/OFF switch, the product can be used not only for CDMA,

WCDMA modulation separately, but also for CDMA and WCDMA input simultaneously in different sub-bands. It is acost-effective solution and can be widely deployed for dual-mode network rollout and optimization.

Local and remote configuration and surveillance is possible through Comba’s remote control and monitoring system

(OMT), via PC or wireless modem to the OMT/OMC. Internal Li-ion battery backup ensures alarm signals are sent out in

the event of power failure. The RD-1932 comes in a sealed, well-ventilated cast aluminum enclosure, suitable for allweather conditions.

Funct iona l B lock D iagram

8/2/2019 comba RD-1932 DS 1-1-1

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1900MHz CDMA+WCDMA Dual-mode Split Band

Selective RepeaterRD-1932

Information contained in this document is subject to confirmation at time of ordering.http://www.comba-telecom.com 

Issued: 28Jan10Control: 1-1-1

2/3 

Technica l Speci f icat ions

Electr ica l CDMA WCDMA

Downlink 1850-1910Frequency RangeUplink

MHz1930-1990

# of Sub-bands, On/Off Independently 2

Operating Band MHz 1.23~10+1.23~10

Maximum System Gain dB 90 ± 2

Attenuation Adjustment Range (1dB step) dB 0 – 30

Downlink 33 ± 1Total Output Power

UplinkdBm

23 ± 1

Pass Band Ripple in Operating Band, p-p dB ± 2

System Group Delay μsec ≤ 6

System Noise Figure, at Maximum Gain dB ≤ 6

Spectrum Emission Mask

Out-of-Band Gain

Output Intermodulation

Modulation Accuracy

N/A3GPP TS 25.106 V7.3.0

standards compliant

∆f ≥ 900KHz dBc ≤ -42 / 30KHzOut-of-CarrierSpurious, Uplink ∆f ≥ 1.98MHz dBc ≤ -54 / 30KHz

∆f ≥ 750KHz dBc ≤ -45 / 30KHzOut-of-Carrier

Spurious, Downlink ∆f ≥ 1.98MHz dBc ≤ -60 / 30KHz

N/A

∆f ≥ 600KHz dBc ≤ -30

∆f ≥ 1MHz dBc ≤ -35

∆f ≥ 2.5MHz dBc ≤ -40

Out-of-Band

Suppression (± 

200KHz @ maximumbandwidth) ∆f ≥ 10MHz dBc ≤ -60

Frequency Error ppm ≤ ± 0.05

Quality of Waveform > 0.970

Band Selectivity @ 1MHz offset to the edge

of SAW filter bandwidthdBc ≥25

9kHz to 1GHz dBm ≤ -36 / 100kHzOut-of-Band

Spurious, ∆f ≥ 2.5MHz1GHz to

12.75GHzdBm ≤ -30 / 1MHz

Input VSWR ≤ 1.5

Absolute Maximum RF input power dBm -20

Impedance Ω  50

Pow er , Mechan i ca l & Env i ronm en ta l  Dimensions, H x W x D mm/in 420 x 330 x 182 / 16.54 x 12.99 x 7.17

Weight (approx.) Kg/lbs 25 / 55

Power Supply VAC 110-220 / 47 – 63Hz

Power Consumption W 180

Enclosure Cooling Convection

Environmental Class IP65

RF Connectors N-Female

Operating Temperature °C -33 to +55

MTBF hrs > 50,000

Note: 1.Typical specification at room temperature

2. WCDMA and CDMA signals are in different sub-bands. CDMA and WCDMA specifications are tested separately.

Model Table  

Part Number Operating Frequency Band (MHz) Operating Bandwidth (MHz)

RD1932-12V10V10P33K60A92M062 variable sub-bands across 60MHz PCS

band1.25-10 (CDMA), 1.25-10 (WCDMA)

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1900MHz CDMA+WCDMA Dual-mode Split Band

Selective RepeaterRD-1932

Information contained in this document is subject to confirmation at time of ordering.http://www.comba-telecom.com 

Issued: 28Jan10Control: 1-1-1

3/3 

Opera t ion and Ma in tenance

Accessed via RJ45 connection and internet browser, installation and commissioning of the RD-1932 can be accomplished

easily from the web OMT. Using the integrated wireless modem (data or SMS mode), equipment parameters can bemonitored and controlled remotely.

Controlled equipment parameters include: Sub-band Switch, Frequency Range, ATT, RF Switch, Over-Temp Threshold,

DL Output Power Threshold, DL Input Power Threshold and Alarm Report Enable.

Monitored equipment parameters include: Alarms (LNA, PA, PLL unlock, Power Down, PSU Fault, Chassis Lock, DL Output

Power Low, DL Input power Overload, Over Temp, VSWR), DL Output Power and DL Input Power.

The RD-1932 has been developed to take advantage of advanced network operation, where the OMC (optional) provides

an effective solution for central monitoring of a group of Comba products.

Out l i ne D raw ing