Tower Mounted Amplifiers are used to enhance the RF performance of the uplink in cellular systems. They consist of a low noise amplifier and high performance filter combined in a compact outdoor unit, and as the name suggests are mounted at the top of the tower, next to the antenna. The benefits of enhancing the uplink vary with the nature and configuration of the system, but include:

• Increased coverage area – of up to 40%
• Increased data rate – on all systems
• Lower infrastructure cost – in new network rollouts
• Increased capacity – in CDMA and 3G systems
• True system balance – system becomes optimum in technical & commercial terms
• Fewer dropped calls – greater subscriber satisfaction
• Increased mobile battery durations – greater subscriber satisfaction

Pacific Wave offer an extensive range of modern TMA manufactured by Denmark.

Image	Part #	Description	Rx band	Tx band
	CP10802	Full-Band CDMA800Mhz Dual Duplex TMA	824-849	869-894
	CP10001	GSM 900MHz Dual Duplex TMA	890-915	935-960
	CP10000	EGSM 900MHz Dual Duplex TMA	880-915	925-960
	CP10100	GSM 1800MHz Dual Duplex TMA	1710-1785	1805-1880
	CP10102	GSM 1800MHz Dual Duplex Twin TMA	1710-1785	1805-1880
	CP10200	CDMA 1900Mhz Dual Duplex TMA	1850-1910	1930-1990
	CP10300	UMTS 2100Mhz Dual Duplex Twin TMA	1920-1980	2110-2170

FILTER and DUPLEXER

Filter are commonly used to reduce or avoid any interference from one system with other system due to its ability to provide rejection/isolation 60-80dB, This Filter can be Full Duplex/Simplex, IP-54 for Outdoor Environment, wall mounted or 19" Rack Mounted depends on customer requirement. We have designed several type of filter as follows :

• PW-DF-1710-75/1805-75 : Common Duplexer for DCS-1800Mhz to split UpLink & DownLink.
• PW-DF-1775-10/1870-10 : Duplexer to Split UpLink & DownLink for DCS-1800Mhz (HCPT only)
• PW-DF-1920-60/2110-60 : Common Duplexer for UMTS-2100Mhz to split UpLink & DownLink.
• PW-DF-1920-10/2110-10: Duplexer to Split UpLink & DownLink for UMTS-2100Mhz (HCPT only)
• PW-RF-02020402 : Reject Filter towards CDMA 800Mhz at GSM900 Frequency.
• PW-RF-02020401 : Receiver Bloking towards GSM 900Mhz at CDMA800 BTS
• PW-RF-907.5-7.5/915-7.5 : Filter to block CDMA800 Signal at GSM900 BTS
• PW-RF-830-5/870-5 : Filter which only allow CDMA800 StarOne Frequency.
• PW-RF-450 : Filter which only allow Uplink Signal of CDMA450 Sampoerna Frequency.

For more details on application of TMA or Filter or Duplexer, Please contact us