Tower Mounted Amplifiers

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+1 (201) 342-3338 phone  
+1 (201)-342-3339 fax  
 
89 Leuning Street  
South Hackensack, NJ 07606  
USA  
 
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+1 (201) 342-3338 phone  
+1 (201)-342-3339 fax  
 
89 Leuning Street  
South Hackensack, NJ 07606  
USA  
 
 
      AWS Twin TMA with 700/850 Bypass DTMABP7821VG12A
                
       
       
         
  DTMABP7821VG12A FV  
  • Small, lightweight, twin unit
  • Triple Band Dual Duplexed (AWS with 700 Band  & Cellular  Bypass)
  • Optional AISG 2.0 compatible unit
  • AISG TMA detects BTS port that DC voltage and AISG sampling is applied to, and automatically switches to utilize that port
  • AISG TMA operates at constant power
  • AISG TMA may be powered by a standard PDU
  • High Linearity
  • Lightning protected
  • Fail-safe bypass mode
  • High reliability

Overview

 

CCI’s Twin Triple Band (700 Band, Cellular & AWS) TMA contains two triple band TMA’s in a single housing.  The AWS TMA is full band and fully duplexed, while the 700 Band and Cellular RF is bypassed and combined (Diplexed) with the AWS RF signal.  High linearity improves the uplink sensitivity and the receive performance of base stations.  The TMA is fully compliant with the latest AISG 2.0 specification.  The TMA supports EDGE/GSM, UMTS and LTE BTS equipment.  It provides a convenient package for sites upgraded to dual or quad antenna configurations.  The twin TMA package reduces tower loading, leasing, and installation costs.  Unit count on the tower is cut in half.  An excellent match for two branch receive diversity applications using dual polarization antennas.  The input and output connectors are located inline for ease of installation in space constrained areas such as uni-pole structures and stealth antennas.

The TMA system consists of a twin outdoor dual band tower mount unit which combine separate AWS, 700 Band & Cellular antennas onto a single BTS port. The AWS path of the tower mount unit is dual duplexed to separate the low-power uplink signals from the high-power downlink signals at the antenna port, amplifies the low-level uplink signals using an ultra-low noise amplifier (LNA), and recombines the two paths at the BTS port. The 700 Band and Cellular path is ultra low loss and passive. Both paths are diplexed at the BTS port. The tower mount units consist of eight band-pass filters, two redundant low-noise amplifiers, bypass failure circuitry, and bias tee’s which are all housed in an IP65 moisture proof enclosure, with IP68 Immersion proof connectors suited to long-life masthead mounting. The unit provides protection against lightning strikes via a multi-stage surge protection circuit. DC power and control is provided via the feeder cable from the BTS or a Power Distribution Unit (PDU). Optional AISG 2.0 DC power and control is provided via the feeder cable from the BTS using the AISG 2.0 and 3GPP standard. The optional AISG TMA detects which BTS port has DC Voltage/AISG Sampling applied and automatically switches to utilize that port. Additionally the AISG TMA operates at constant power when powered by an AISG 2.0 Compatible Site Control Unit, but may be powered by a “Standard Power distribution Unit. A separate AISG connector is also provided to allow direct AISG connection or “Daisy Chaining” to multiple AISG products at the top of the tower.
An optional indoor site control unit (SCU) is available to power up to up to 32 AISG modules per sector and to provide the all the monitoring and alarm functions for the system. The SCU is housed in a single (1U) 1.75” x 19” rack and contains dual redundant power supplies capable of being “hot swapped” that provide a regulated DC supply voltage on the RF coax for the tower mount amplifiers.

Electrical

RF Parameters Ports Frequency(MHz) Specification
Return Loss AWS ANT 1710 - 1770 18 dB min. (18 dB bypass mode)
2110 - 2170 18 dB min.
BTS 1710 - 1770 18 dB min. (18 dB bypass mode)
2110 - 2170 18 dB min.
698 - 894 18 dB min.
700/850 ANT 698 - 894 18 dB min.
Gain AWS ANT - BTS 1710 - 1770 6 to 12 dB adjustable in 0.25 dB steps via AISG (± 0.2 dB)
Insertion Loss AWS ANT - BTS (RX Bypass mode) 1710 - 1770 1.1 dB typ. @ 25°C, 1.3 dB @ 65°C  (± 0.05 dB)
AWS ANT - BTS (TX) 2110 - 2170 0.25 dB typ, 0.4 dBmax.  ±0.05dB 
700/850 ANT 698 - 894 0.4 dBmax.
Rejection 700/850 ANT - BTS 1710 - 1770 80 dB
AWS ANT - BTS 698 - 894 80 dB
Noise Figure AWS ANT - BTS  1710 - 1770 1.3 dB typ. @ 25°C, 1.5 dB @ 65°C
Input Third Order Intercept Point AWS ANT - BTS 1710 - 1770 +12 dBm min. at max. gain
General Characteristics  
Impedance 50 ohms
Continuous Average Power 500 W max.
Peak Envelope Power 5 kW max.
Intermodulation Performance(all ports) <-110 dBm (-153 dBc) typical (2 × +43 dBm tones) all bands
Operating Voltage +10V to +30V DC provided via coax or AISG
Power Consumption < 1.5 W

Environmental

Operating Temperature   -40˚C to +65˚C
Enclosure IP65 (Unit Body), IP68 (Connector)
MTBF >500,000 hours
Lightning Protection 8/20us, ±2KA max, 10 strikes each per IEC61000-4-5

Mechanical

Connectors   6 × 7-16 DIN female(long neck), 1 × AISG
Dimensions (body only)(H×W×D) 10.63 × 11.02 × 3.27 in. (270 × 280 × 83 mm)
Dimensions (w/bracket)(H×W×D) 14.25 × 11.44 × 3.64 in. (362 × 290.6 × 92.5 mm)
Weight 20.0 lbs max (9.07 kg)-without bracket
Mounting Pole/Wall mounting bracket

 

    DTMABP7821VG12A Outline
  DTMABP7821VG12A Outline Drawing 

 

Block Diagram

   DTMABP7821VG12A BD 
  DTMABP7821VG12A Block Diagram 

Accessories

SCU-AISG2-3 AISG 2.0 Site Controller
RET-CBK AISG Cable Kit
BT-0821-DMDF-AG-O DIN-Male RF Port, DIN-Female RF+DC+AISG Port
BT-0821-DFDM-AG-O DIN-Female RF Port, DIN-Male RF+DC+AISG Port
BT-0821-DFDF-AG-O DIN-Female RF Port, DIN-Female RF+DC+AISG Port

Parts & Accessories

DTMABP7821VG12A AWS Full band AISG Twin TMA with 700/850 Bypass

Certifications

Antenna Interface Standards Group (AISG), Federal Communication Commission (FCC) Part 15 Class B, CE, CSA US
 
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89 Leuning Street

South Hackensack, NJ 07606

+1 (201) 342-3338

+1 (201) 342-3339 fax