Specifications

Q CDMA

Specifications

General Function

Specification

 

 

Frequency Range 1900 MHz PCS

1931.250 -1988.750 MHz Rx

 

1851.250 -1908.750 MHz Tx

Frequency Range 800 MHz CDMA

869.70 - 893.31 Rx

 

824.70 - 848.31 Tx

Channel Spacing

50 kHz PCS

 

30 kHz CDMA

 

 

Channels

1150 PCS

 

788 CDMA 800

Modulation

1M25D1W (1.25 MHz bandwidth) CDMA

 

3G1XRTT (1.25 MHz bandwidth) CDMA-1X

Duplex Spacing

80 MHz PCS

 

45 MHz CDMA 800

 

 

Frequency Stability

± 150 Hz (CDMA)

 

 

Power Supply

3.6V Li Ion 1130 mAh battery

 

 

Average Transmit Current

310 mA at +13 dBm)

 

 

Average Stand-by Current

3.40 mA

 

 

Dimensions (WHD)

64mm x 116mm x 11.5mm

(with 1130 mAh Li Ion battery)

2.5 in. x 4.5 in. x 0.4 in.

Size (Volume)

80 cc (4.8 in.3) without antenna

Weight

<115g (4.65 oz) with battery

 

 

Temperature Range

-30° C to +60° C (-22° F to +140° F)

 

 

Humidity

80% Relative Humidity at 50° C (122° F)

 

 

Battery Life, 1130 mAh Li Ion Battery

Up to 180 minutes digital talk time (IS 95 A/B)

 

Up to 250 hours (IS 95 A/B) standby time

 

Up to 350 hours (IS 2000) standby time

 

All talk and standby times are approximate and

 

depend on network configuration, signal strength,

 

and features selected.

Transmitter Function

Specification

 

 

 

RF Power Output

0.20 watts -23 dBm into 50 ohms (CDMA

nominal)

 

 

 

Input/Output Impedance

50 ohms (nominal)

 

 

Transmit Audio Response

6 dBm/octave pre-emphasis

 

 

Modulation

1M25DIW (1.25 MHz bandwidth) CDMA

 

 

 

CDMA Transmit Waveform Quality

0.94

 

(Rho)

 

 

 

Receiver Function

Specification

 

 

Receive Sensitivity

-104 dBm (CDMA, 0.5% Static FER) 0.5% or less

Audio Distortion

Less than 5% at 1004 Hz, +/- 8 kHz peak

frequency deviation (transmit and receive)

 

 

 

Adjacent and Alternate Channel

3% BER max at 107 dBm signal; -94 dBm/30 kHz,

Desensitization

-65 dBm/60 kHz

8

May 15, 2006

6809501A03-O

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Motorola CDMA 800/1900 MHz service manual Specifications, General Function Specification

CDMA 800/1900 MHz specifications

Motorola has long been recognized as a key player in the telecommunications industry, especially with its contributions to mobile communications technology. Among its impressive portfolio, the Motorola CDMA 800/1900 MHz stands out as a significant offering, particularly in the realm of Code Division Multiple Access (CDMA) technologies. This article delves into the main features, technologies, and characteristics of this versatile mobile communication standard.

The CDMA 800/1900 MHz spectrum refers to the frequency bands used for CDMA network deployment, specifically at 800 MHz and 1900 MHz. These frequencies allow carriers to provide robust mobile coverage, enhanced network capacity, and better call quality. The dual-band capability offers a versatile solution for both urban and rural environments, as 800 MHz is known for its ability to penetrate buildings and cover larger areas, while 1900 MHz is effective in densely populated regions.

One of the standout features of Motorola's CDMA technology is its ability to accommodate multiple users on the same frequency channel. This is achieved through code-based separation, where unique codes are assigned to each user. This allows many calls to occur simultaneously without interference, enhancing network efficiency and user experience. Additionally, CDMA technology provides significant improvements in voice quality and clarity, thanks to its advanced error correction algorithms.

Another notable aspect of the Motorola CDMA 800/1900 MHz is its support for various technologies that enhance functionality. The integration of features such as 1xRTT, EV-DO, and later evolutions introduced functionalities like packet data services and faster download speeds. EV-DO (Evolution Data Optimized) significantly boosts data transmission rates, making it ideal for mobile broadband services and applications, such as video streaming and online gaming.

Security is a critical concern in telecommunications, and Motorola's CDMA technology offers robust security measures. The encryption algorithms used in CDMA help protect user data and maintain privacy during voice calls and messaging, ensuring a secure communication environment.

In summary, Motorola CDMA 800/1900 MHz epitomizes reliable and efficient mobile communication. Its dual-band functionality provides expansive coverage and enhances user experience through simultaneous voice and data services. Advanced technologies such as EV-DO and robust security measures further contribute to its appeal. As the telecommunications landscape continues to evolve, the legacy of Motorola's CDMA technology remains a significant part of mobile communication history.