Date: Fri, 21 Nov 1997 02:17:24 GMT Server: Apache/1.2.4 Connection: close Content-Type: text/html
Powerwave's ultra-linear multi-carrier amplifiers utilize a single feed forward loop, which allows greater operating efficiency and requires approximately 25% less electrical current than competing multi-loop designs. The Company's amplifiers employ a microprocessor based feed-forward loop design which results in better tracking between the pilot tone and the actual signal and reduces interference. Powerwave's multi-carrier design also utilizes an actively switched output combiner, which allows any number of amplifiers to be "hot-swapped" without a significant loss of power. This design allows for true cold standby switching of a standby amplifier, thereby providing network operators with a backup redundancy solution for even greater reliability.
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MCA SERIES The MCA Series offers ultra-linear multi-carrier power amplifier technology for CDMA and TDMA digital cellular systems positioned between 800-960 MHz, as well as analog systems utilizing AMPS, TACS, ETACS and GSM protocols. The amplifiers are designed to be installed in racks of three or four amplifiers. Smart combiner paralleling units allow both higher power as well as system redundancy, which is the ability of the system to remain in operation in the event of the failure of one or more of the paralleled amplifiers. When combined, the units have "hot swap" capabilities whereby one unit can be removed from the rack while all others remain in operation. All MCA series multi-carrier amplifiers provide remote status/fault monitoring capabilities. The MCA8000-250, which the Company believes is the leading amplifier in South Korea's nationwide digital cellular system, produces 25 Watts (W) average, 250W peak power with maximum distortion of -60dBc. Up to 4 units can be combined in parallel utilizing the Company's fully redundant smart combiner racks for effective average power ratings of 20W, 45W, 70W, and 90W. The MCA9100-40 which produces 40W average, 400W peak power per channel with maximum distortion of -65dBc, while retaining its hot swap, paralleling, and redundancy capabilities. Generally, as compared to the MCA 8000-250, one less amplifier can be used to achieve a similar power rating, thus decreasing the effective cost per watt to the service operator. Combining up to 4 units in a rack yields effective power ratings of 32W, 70W, 100W and 135W. Powerwave has recently started shipping a new 50 watt MCA Series amplifier for cellular networks and the Company also offers within the MCA Series other standard linear products including 40W Class A and 250W Class AB amplifiers which are used in applications requiring reduced linearity or power. |
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PCS SERIES The PCS Series offers both single and multi-carrier amplifiers for use in PCS networks that operate in the international DCS-1800 frequency of 1.8 gigahertz (GHz) and the new United States PCS band at 1.9GHz. Typical system applications include CDMA, TDMA, and GSM protocols with output power ranging from 5W to 100W. The PCS Series of multi-carrier amplifiers offer similar power combining, system redundancy, and remote status/fault monitoring capabilities as the Company's MCA Series with output power ranging from 10W to 100W and distortion of -60dBc. |
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SMR SERIES The SMR Series includes the RF, LP and LDA Series amplifiers. |
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RF SERIES The RF Series is the Company's standard single-carrier analog amplification product for SMR, paging, repeater and trunking applications. These amplifiers operate in discreet bands within the 30 MHz to 960MHz frequency range with input powers ranging from 10mW to 30W and produce output powers ranging from 30W to 160W. These amplifiers have been designed for simple installation and maintenance and are fully modular for quick and easy field service. |
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LP SERIES The LP Series is a single-carrier analog amplifier similar to the Company's RF Series amplifiers, but in a smaller 5" format. The LP Series is used in SMR, paging, repeater and trunking applications. These amplifiers also operate in the 35 MHz to 960 MHz frequency range with input powers ranging from 200mW to 20W and produce output power ranging from 30W to 60W. |
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LDA SERIES The LDA Series provides broadband digital or analog amplification as a "building block" in larger amplification systems or as a stand-alone amplifier. The LDA Series products are used as a building block for applications involving electronic countermeasures ("ECM") and radar systems. The products are also used as stand alone amplifiers for applications in laboratory testing, medical research and multi-band transceivers and are designed to operate in wide frequency ranges between 20MHz to1GHz with output powers ranging from 5W to 150W. |
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