Cobra Electronics Corporation FRS305 Manual De Usuario

C.TRANSMITTER 

UNIT 

1. EFFECTIVE RADIATED POWER

mW 

500 

2. CARRIER FREQ.STABILIT Y

H Z

500 

3. MODULATION LIMITING

KHZ 

2.5

4. CARRIER ATTACK TIME

mS 

80 

5. AUDIO FREQUENCY RESPONSE

@ 300 HZ 

DB

-6

@ 3000 HZ 

DB

-6

6. AUDIO DISTORTION 

%

3

7. HUM and NOISE 

DB 

35 

8. TRANSIENT FREQ.BEHAVIOR

a) TX ON

mS 

30 

b) TX OFF 

mS 

5

D. POWER SUPPLY

1. BATTERY LIFE (1:1:8 RATIO) 

HR 

24 

2. BATTERY

V

4.8 - 6.0

MicroTalk

Specifications

41

40

I.GENERAL SPECIFICATIONS

A.GENERAL

CH=14 CHANNELS WITHIN 462-467 MHZ

B. RECEIVER

UNIT 

1. SENSITIVITY

FOR 12 DB SINAD  

uV 

0.25 

FOR CALL SIG.DETECTION 

uV 

0.2

2. MAX. AUDIO OUTPUT @10% THD

MW

100

3. MAX.S/N RATIO @ 1mV RF INPUT 

DB 

45 

4. SQUELCH 

a) SENS.

uV 

0.2 

b) ATTACK TIME 

mS 

120 

c) CLOSING TIME 

mS 

200 

5. AUDIO FREQUENCY RESP.

@ 300 HZ 

DB 

-6

@ 3000 HZ 

DB 

-6

6. SIGNAL DISPLACEMENT BW

+/-KHZ 5

7. ADJACENT CH.REJECTION 

DB 

55 

8. INTERMODULATION REJECTION 

DB 

55 

9. SPURIOUS RESPONSE REJECTION 

DB 

65 

Frequency Range

Frequency
Ranges

The microTalk unit represents one of the most
advanced FM two-way radios available.

1

462.5625

8

467.5625

2

462.5875

9

467.5875

3

462.6125

10

467.6125

4

462.6375

11

467.6375

5

462.6625

12

467.6625

6

462.6875

13

467.6875

7

462.7125

14

467.7125

01

67.0 Hz

21

136.5 Hz

02

71.9 Hz

22

141.3 Hz

03

74.4 Hz

23

146.2 Hz

04

77.0 Hz

24

151.4 Hz

05

79.7 Hz

25

156.7 Hz

06

82.5 Hz

26

162.2 Hz

07

85.4 Hz

27

167.9 Hz

08

88.5 Hz

28

173.8 Hz

09

91.5 Hz

29

179.9 Hz

10

94.8 Hz

30

186.2 Hz

11

97.4 Hz

31

192.8 Hz

12

100.0 Hz

32

203.5 Hz

13

103.5 Hz

33

210.7 Hz

14

107.2 Hz

34

218.1 Hz

15

110.9 Hz

35

225.7 Hz

16

114.8 Hz

36

233.6 Hz

17

118.8 Hz

37

241.8 Hz

18

123.0 Hz

38

250.3 Hz

19

127.3 Hz

20

131.8 Hz