STE sas Milano - ITALY
Page 4 of 14
BK77A5 – BK77B5 Specifications
Min Typ Max
Units
Notes
GENERAL
FREQUENCY RANGE
432.000
436.100
MHz
( 1 )
CHANNEL SPACING
25
KHz
FREQUENCY PROGR. STEP
12.5
KHz
FREQUENCY STABILITY
±2.5
±4
ppm
( 2 )
ANTENNA IMPEDANCE
50
Ω
DATA RATE ( DATA MODE)
1200
9600
Baud
FREQ. RESPONSE (VOICE MODE)
100
7000
Hz
SUPPLY VOLTAGE
4.75
5
5.25
V
SUPPLY CURRENT - Rx MODE
35
40
mA
SUPPLY CURRENT - Tx MODE :
a) BK77A5 (100 mW)
b) BK77B5 (500 mW)
100
250
mA
mA
OPERATING TEMPERATURE
- 20
+ 60
°C
DIMENSIONS
95 x 50 x 7.5 mm
WEIGHT 25
g
TRANSMITTER
RF OUTPUT POWER :
a) BK77A5 low
high
b) BK77B5 low
high
10
80
80
400
15
100
100
500
mW
mW
mW
mW
( 3 )
SPURIOUS EMISSION
-40
- 36
dBm
FM DEVIATION
3
5
KHz
R/T SWITCHING TIME
5
10
ms
( 4 )
MODULATION :
VOICE MODE (PM MOD.)
VOICE MODE (FM MOD.)
DATA MODE (GMSK MOD.)
100
50
DC
3000
5000
4800
Hz
Hz
Hz
( 5 )
RECEIVER
SENSITIVITY :
VOICE MODE (PM MOD.)
VOICE MODE (FM MOD.)
DATA MODE (4800 Baud)
-125
-115
-115
dBm
dBm
dBm
( 6 )
( 6 )
( 7 )
SELECTIVITY
65
70
dB
( 8 )
IMAGE REJECTION
50
dB
DYNAMIC RANGE
100
110
dB
BLOCKING
+84
+85
dB
( 9 )
T/R SWITCHING TIME
5
10
ms
( 4 )
NOTE :
(1) CEPT SRD BAND LIMITS = 433.05 – 434.79 MHz (6) 12dB SINAD – 1KHz dev. 3KHz
(2) OVER OPERATING TEMPERATURE RANGE (7) 1/10E2 BER
(3) CEPT MAX ERP = 10 mW (8) ADJACENT CHANNEL SELECTIVITY
(4) PLL LOCK-UP TIME (9) Fc
±
1 MHz
(5) SQUARE WAVE 0-5 Vdc LEVEL