Garmin GPS 400W Installation Manual page 18

1 . 4 . 4 C O M T r a n s c e i v e r S p e c i f i c a t i o n s ( G N C 4 2 0 W a n d G N S 4 3 0 W O n l y ) * *
A u d i o O u t p u t
A u d i o R e s p o n s e
A u d i o D i s t o r t i o n
A G C C h a r a c t e r i s t i c s
S e n s i t i v i t y
S q u e l c h
S e l e c t i v i t y
S p u r i o u s R e s p o n s e
T r a n s m i t t e r P o w e r
T r a n s m i t t e r D u t y C y c l e
M o d u l a t i o n C a p a b i l i t y
C a r r i e r N o i s e L e v e l
F r e q u e n c y S t a b i l i t y
D e m o d u l a t e d A u d i o D i s t o r t i o n
S i d e t o n e
D e m o d u l a t e d A u d i o R e s p o n s e
C 3 7 d C l a s s 4 & 6 m a y n o t p r o v i d e s u i t a b l e C O M t r a n s m i t r a n g e f o r s o m e h i g h - a l t i t u d e a i r c r a f t .
*
* * S p e c i f i c a t i o n s s h o w n a p p l y a t n o m i n a l i n p u t v o l t a g e s o f 1 3 . 7 5 V D C o r 2 7 . 5 V D C , a s a p p l i c a b l e , a n d
w i t h a n o m i n a l 5 0 o h m r e s i s t i v e l o a d a t t h e a n t e n n a c o n n e c t o r .
P a g e 1 - 6
R e v . A
100 mW minimum into a 500
Less than 6 dB of variation between 350 and 2500 Hz.
The distortion in the receiver audio output shall not exceed
15% at all levels up to 100 mW.
The audio output will not vary by more than 6 dB when the level
of the RF input signal, modulated 30% at 1000 Hz, is varied
from 5 V to 450,000
µ µ
(S+N)/N on all channels shall be greater than 6 dB when the
RF level is 2 V (hard) modulated 30% at 1000 Hz at rated
µ
audio.
2 v 6 dB for 25 kHz channels.
µ ±
3
v 6 dB for 8.33 kHz channels.
µ ±
6 dB BW is greater than
60 dB BW is less than ±25 kHz for 25 kHz channeling.
6 dB BW is greater than ±2.778 kHz for 8.33 kHz channeling.
60 dB BW is less than ±7.37 kHz for 8.33 kHz channeling.
Greater than 85 dB.
At Least 10 watts, 16 watts for "AW" models
Recommended 10% maximum.
The modulation is not less than 70% and not greater than 98%
with a standard modulator signal applied to the transmitter.
At least 45 dB (S+N)/N.
0.0005%
Less than 10% distortion when the transmitter is modulated at
least 70%.
1.4 V into a 500
RMS
at least 70%.
Less than 6 dB when the audio input frequency is varied from
350 to 2500 Hz.
load.
V .
8 kHz for 25 kHz channeling.
±
load when the transmitter is modulated
4 0 0 W S e r i e s I n s t a l l a t i o n M a n u a l
1 9 0 - 0 0 3 5 6 - 0 2