SRG-1150DN / SRG-1250DN / SN-100
2.3 MF/HF RECEIVER
(1) ALL BAND Receiver
o Frequency Range
500KHz - 29.9999MHz in 100Hz STEP
o Method of Reception
UP CONVERSION DOUBLE SUPERHETERODYNE Type
using phase- locked digital frequency synthesizer
1st intermediate frequency : 49.455MHz
2st intermediate frequency : 455kHz
o Type of Reception
USB(J 3E), FSK(F1B)
o Overall Distortion
& Noise
With an input voltage of 30㎶, the ratio between an
audio frequency output of 1000Hz and its unwanted
component is greater than 20dB
o AGC Characteristics
Change in audio frequency output for antenna between
3㎶ and 100㎷ is 10㏈ or less
o Voice Output
Max 5.6W or more
o Receiving Sensitivity
SSB is less than 3uV at freq. 500KHz
29.9999MHz
Only, SSB : (S+N+D)/(N+D) = 20dB,
BAND width : 3KHz, output : 100mW
o Articulation
± 120Hz
* In case of DSC, NBDP
Symbol error rate at a receiver input voltage of 1㎶ is
1× 10
- 2
Only, Receiving Mode : FSK, BAND width : 0.3KHz
a) The detailed characteristics 3KHz FILTER (for SSB)
The passband below 6dB : 2.4KHz - 2.8KHz
The passband at an attenuation of 26dB :
within than ± 1.7KHz
The passband at an attenuation of 46dB :
within ±
1.9KHz
The passband at an attenuation of 66dB :
within ± 2.1KHz
b) The detailed characteristics of 0.3KHz FILTER
(for DSC, NBDP)
The passband below 6dB is 270Hz- 300Hz
Attenuation at ± 380Hz is 30dB or more
Attenuation at ± 550Hz is 60dB or more