User's Manual

Viewsonic Tweety RF Remote Rev 2.9A November 05, 2001

Universal Electronics Inc. Confidential Page 39 of 63

4 RF Transmission General Specification

The performance requirements are contained in the table below

Table 2. General Specification

Rqmt No. Parameter Description Tx Module

4.1 Number of channels 10 channels

4.2 Channel spacing 1,2,3 & 1.6 MHz

4.3 Receive frequency band N/A

4.4 Demodulation N/A

4.5 Receiver sensitivity Minimum N/A

4.6 Data rate Fixed 9600 bps

4.7 Transmit frequency

band

2446.7 to 2464.3 MHz

4.8 Modulation FSK

4.9 Radiated power

FCC Requirements

Maximum

Fundamental

Spurious

emissions

-18 dBm

50 millivolts/meter @ 3

meters

500 microvolts/meter

@ 3 meters

4.10 Simplex type Transmit only

4.11 RF frequency tolerance ± 10 ppm

4.12 Temperature range Operating

Storage

0 to 50 °C

-10 to 60

4.13 Power source Nominal 2.5 VDC

4.14 Power consumption Maximum

operational

supply current

15 mA

4.15 Dimensions 28mm x 22mm x 8mm

4.16 Weight To be determined

4.17 Other requirements PLL lock on time 50 ms

Note

* : The output data of channel 1-5 and channel 6-10 are different.

Channel 1~5 : Tx input data

Rx output data

Channel 6~10: Tx input data

Rx output data