TECHNICAL DETAILS AND OPERATION INSTRUCTIONS FOR ST121
9
2 RESTRICTIONS AND RECOMMENDATIONS
2.1 Transport and store ST121 in standard package.
For prolonged storing you should use closed, warm compartment with temperature 10-35C and
humidity no more than 80%.
Transport with caution and try to avoid physical interference with standard package.
2.2 After prolonged (more than 4 hours) stay of the device in cold (less than -5C) it only should be
turned on if there is no evidence of condensate on the device.
2.3 Do not expose LCD display to the direct sunlight.
3 TECHNICAL SPECIFICATIONS
"HF-SHF" socket
Frequency range, MHz
100-6000
Frequency-tuning step, kHz
10, 100, 1000, 10000, 100000
Signal level, dBm
-42 – +14*
Stray harmonics, dBm
100-200MHz
-15
200-700, 1100-1500MHz
-45
800-1000, 1600-6000MHz
-30
Signal
Sinusoidal, DSSS ,FHSS, PULSE
Modulation
AM, FM
Data transmission standards imitation
GSM, 3G, DECT, WLAN, BLUETOOTH
Modulation frequency, kHz
0.5, 1, 1, 5, 15
АМ depth, %
70
FM
Deviation, kHz
5, 20, 100, 300, 600
Nonlinear distortion of modulating signal, no more than, %
15
FHSS
Bandwidth of Hopping
, MHz
1, 6, 10, 20, 50, 100
FHSS
Number of Hopping Channels
25, 50, 125, 250
FHSS Frequency of hopping, Hz
1, 2, 4, 8
DSSS Bandwidth, MHz
0.3, 0.5, 1, 2, 4
PULSE Signal transmission time, sec
0.0001- 99
PULSE
Signal accumulation time, sec
0.01-5999
*Variation range depends on signal frequency and selected standard
"RJ-45" socket
Frequency range, kHz
0.01-20000
