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Product Specification
Product Name：2.4GHz Cordless keyboard
Model Name： Y-R0009
Brand Name： Logitech
Antenna
Type of Antenna (Loop....)
antenna gain
Method of Frequency generation
Number of channels
Carrier frequencies
Index
1
2
3
4
5
6
20dB channel bandwidth (Carson's rule) for modulated
carrier
Channel switching frequency range
Modulation characteristics
Transmitter aggregate data rate
Effective radiated power
If intermittent duty
Transmission range
Method of Frequency generation
Range
Power source
Power consumption
Nominal DC voltage
Operating voltage
Extreme test voltage (low)
Applies cut off voltage (automatic switch off)
DC maximum current
Extreme Temperature range
Internal
PCB printed
0.45dBi
16 MHz Crystal + PLL
12
RF channel
Index
2405(0x05)
2408 (0x08)
2414 (0x0E)
2417 (0x11)
10
2432 (0x20)
11
2435 (0x23)
12
2 MHz @ -20 dBm
2405 MHz - 2474 MHz
Digital GFSK
2Mbits/s per second
0 dBi
duty cycle:
Tx on = 0.08 ms
Tx off = 7.92 ms
Duty cycle (Tx on / (Tx on + Tx off)) = 1%
100m max in free space
16 MHz Crystal + PLL
100m in free space
AA Alkaline battery
10mW typical (typing)
3V
2.1V 3.2V
2.1V
2.1V typ
30 mA worst case
0 °C to 40°C
RF channel
7
2441 (0x29)
8
2444 (0x2C)
9
2462 (0x3E)
2465 (0x41)
2471 (0x47)
2474 (0x4A)
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