IFR COM-120C, Руководство по эксплуатации

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4-34
SECTION 4
OPERATION
300 kHz
S e l e c t s 3 0 0 k H z I F B a n d w i d t h F i l t e r .
15 kHz
S e l e c t s 1 5 k H z I F B a n d w i d t h F i l t e r .
30 kHz
S e l e c t s 3 0 k H z I F B a n d w i d t h F i l t e r .
OTe
n
F o r f o l l o w i n g g u i d e l i n e s ,
∆
F i s F r e q u e n c y D e v i a t i o n i n H z ,
Φ
i s P h a s e
D e v i a t i o n i n R a d i a n s , F m i s t h e T o n e M o d u l a t i o n F r e q u e n c y i n H z a n d
I F i s M i n i m u m I F F i l t e r B a n d w i d t h . G e n e r a l G u i d e l i n e s f o r I F F i l t e r
S e l e c t i o n a r e a s f o l l o w s :
F o r F M M o d u la t e d Si g n a l s :
I F = 4 (
∆
F + F m)
F o r P M M o d u l a t e d S i g n a l s :
I F = 4 F m (
Φ
+ 1 )
F o r A M M o d u l a t e d S i g n a l s :
I F = 1 5 k H z, f o r F m
≤
1 k H z
o
E d i t A F G e n e r a t o r s o u r c e s a s r e q u i r e d :
GEN1
S e l e c t s G E N 1 a s s o u r c e .
GEN2
S e l e c t s G E N 2 a s s o u r c e .
DATA
S e l e c t s D A T A a s s o u r c e .
DTMF
S e l e c t s D T M F a s s o u r c e .
RETURN
E x i t s s o u r c e w i n d o w .
RF: 10.0000 MHz
FL: OFF
Input: ANT
Atten: 30 dB
Demod: FM IF BW: 15 kHz
Source: GEN1 State: ON
Format: TONE
Freq: 100.0 Hz
Shape: SINE
Level: 0.00 VP
.000 Vrms
Mode: CONT