Rainbow Electronics ATA5746 - Manual (Page 12)

12
4596A–RKE–05/06
ATA5745/ATA5746 [Preliminary]
Figure 2-7. Narrow-band 3-dB Blocking Characteristic at 315 MHz
Figure 2-8. Wide-band 3-dB Blocking Characteristic at 315 MHz
Table 2-8 shows the blocking performance measured relative to –102 dBm for some frequen-
cies. Note that sometimes the blocking is measured relative to the sensitivity level 104 dBm
(denoted dBS), instead of the carrier –102 dBm (denoted dBC)
Table 2-8. Blocking 3 dB Above Sensitivity Level With BER < 10 –3
Frequency Offset Blocking Level Blocking
+1.5 MHz –44.5 dBm 57.5 dBC, 60.5 dBS
–1.5 MHz –44.5 dBm 57.5 dBC, 60.5 dBS
+2 MHz –39.0 dBm 63 dBC, 66 dBS
–2 MHz –36.0 dBm 66 dBC, 69 dBS
+3 MHz –34.5 dBm 67.5 dBC, 70.5 dBS
–3 MHz –34.5 dBm 67.5 dBC, 70.5 dBS
+20 MHz –28.0 dBm 74 dBC, 77 dBS
–20 MHz –28.0 dBm 74 dBC, 77 dBS
-10.0
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
-5.0 -4.0 -3.0 -2.0 -1.0 0.0 1.0 2.0 3.0 4.0 5.0
Distance from Interfering to Receiving Signal (MHz)
B
lo
cki
n
g
L
evel
(
d
B
C
)
-10.0
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
-50.0 -40.0 -30.0 -20.0 -10.0 0.0 10.0 20.0 30.0 40.0 50.0
Distance from Interfering to Receiving Signal (MHz)
B
lo
cki
n
g
L
evel
(
d
B
C
)