Tower Mounted Amplifiers

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+1 (201) 342-3338 phone  
+1 (201)-342-3339 fax  
89 Leuning Street  
South Hackensack, NJ 07606  
Customer Service  
+1 (201) 342-3338 phone  
+1 (201)-342-3339 fax  
89 Leuning Street  
South Hackensack, NJ 07606  
Technical Support  
+1 (201) 342-3338 phone  
+1 (201)-342-3339 fax  
89 Leuning Street  
South Hackensack, NJ 07606  
      PCS Twin Tower Mounted Amplifier DTMA1819VG12x
  DTMA1819VG12A FV  
  • PCS Band Twin TMA with optional support for PCS G Block
  • Each TMA has independent AISG 2.0 compliant gain control of 6 to 12dB
  • Fail-safe bypass mode and multi-strike lightning protection
  • Small lightweight twin unit offers high reliability of >500K Hours MTBF
  • Highly linear amplifier with low intermodulation




CCI’s PCS Band Twin TMA, which includes optional support for PCS G Block, contains two fully duplexed TMA’s in a single housing. 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 and supports both LTE and UMTS as well as legacy CDMA and EDGE/GSM 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 in-line for ease of installation in space constrained areas such as uni-pole structures and stealth antennas. Gain for each TMA is independently adjustable remotely via AISG connection.


Technical Description:

The TMA system consists of a twin outdoor tower mount unit with two antenna inputs. CCI's Twin PCS TMA is available in two (2) optional sets of bands. The first option covers PCS Blocks A thru F, while the second option covers PCS Blocks A2 thru G. The tower mount unit is dual duplexed to separate the low-power uplink signal from the high-power downlink signal at the antenna port, amplifies the low-level uplink signal using an ultra-low noise amplifier (LNA), and recombines the two paths at the BTS port. The tower mount units consist of six band-pass filters, four 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 using the AISG 2.0 and 3GPP standard. A separate AISG connector is also provided to allow direct AISG connection or “Daisy Chaining” 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 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.


RF Parameters Ports Frequency(MHz) PCS A - PCS F Frequency(MHz) PCS A2 - PCS G Specification
Return Loss ANT 1850 - 1910 1855 - 1915 18 dB min. (15 dB bypass mode)
1930 - 1990 1935 - 1995 18 dB min.
BTS 1850 - 1910 1855 - 1915 18 dB min. (15 dB bypass mode)
1930 - 1990 1935 - 1995 18 dB min.
Gain ANT - BTS 1850 - 1910 1855 - 1915 6 to 12 dB adjustable in 0.25 dB steps via AISG (± 1.0 dB)
Insertion Loss ANT - BTS (RX Bypass mode) 1850 - 1910 1855 - 1915 1.6 dB @ 25°C, 1.8 dB @ 65°C; 2.3 dB @ 25°C, 2.5 dB @ 65°C at the upper band edge (± 1.0 dB)
ANT - BTS (TX) 1930 - 1990 1935 - 1995 0.4 dB typ. (± 0.2 dB)
Noise Figure  ANT - BTS  1850 - 1910 1855 - 1915 1.4 dB @ 25°C, 1.6 dB @ 65°C, 1.7 dB @ 25°C, 1.9 dB @ 65°C at the upper band edge
Input Third Order Intercept Point ANT - BTS 1850 - 1910 1855 - 1915 +12 dBm min. at max. gain
General Characteristics  
Impedance 50 ohms
Continuous Average Power 200 W max.
Peak Envelope Power 2 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 < 2.1 W


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


Connectors   4 × 7-16 DIN female 1 × AISG
Dimensions (w/o connectors or brackets)(H×W×D) 10.63 × 7.87 × 2.9 in. (270 × 200 × 74 mm)
Dimensions (with brackets)(H×W×D) 14.25 × 8.3 × 3.2 in. (362 × 211 × 81 mm)
Weight 13.3 lbs (6.0 kg)-with bracket; 12.6 lbs (5.7 kg)-without bracket
Mounting Pole/Wall mounting bracket


   DTMA1819VG12A Outline
  DTMA1819VG12X Outline Drawing


Block Diagram

   DTMA1819VG12A BD
  DTMA1819VG12X Block Diagram


SCU-AISG2-3 AISG 2.0 Site Controller
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

DTMA1819VG12x PCS Band Twin Tower Mount Amplifier with AISG 2.0 compliant adjustable gain
Option (-x) Description
A TMA supports PCS band blocks A thru F
G TMA supports PCS band blocks A2 thru G

Standards & Compliance

Safety EN 60950-1, UL 60950-1
Emission EN 55022
Immunity EN 55024
Environmental IEC 60068-2-1, IEC 60068-2-2, IEC 60068-2-5, IEC 60068-2-6, IEC-60068-2-11, IEC 60068-2-14, IEC 60068-2-18, IEC 60068-2-27, IEC 60068-2-29, IEC 60068-02-30, IEC 60068-2-52, IEC 60068-2-64, IEC61000-4-5, GR-63-CORE 4.3.1, EN 60529 IP68


Antenna Interface Standards Group (AISG), Federal Communication Commission (FCC) Part 15 Class B, CE, CSA US, ISO 9001:2008
ISO9001Logo RoHS logo AISGLogo 3GPPLogo


89 Leuning Street

South Hackensack, NJ 07606

+1 (201) 342-3338

+1 (201) 342-3339 fax