Figure 10: Cellular B Band Filter Switch Characteristics; Table 8: Cellular B Band Bandpass Filter Switch Positions - EMS EkoMini Operator's Manual

roll-off point of the filter on specific AMPS channels as shown in Table 8 below. The
units are factory set at switch position B

Table 8: Cellular B Band Bandpass Filter Switch Positions

Band
Selection for
"B" Band
B
1
B
2
B
3
B
4
Cellular A Band (upper
portion)

Figure 10: Cellular B Band Filter Switch Characteristics

EMS Wireless EkoMini Manual
3-dB Roll-off Begins on AMPS
Channel
Channel 338 – 880.140 MHz
Channel 342 – 880.260 MHz
Channel 346 – 880.380 MHz
Channel 350 – 880.500 MHz
Switch
Position "B1"
0
-3 dB
-10
-20
-30
Ch. 334
(880.020
MHz)
-40
879.9 880.0
33
.
1
Switch 3
Position
On
On
Off
Off
Switch Switch
Position "B2" Position "B3"
Ch. 338 Ch. 342 Ch. 346
(880.140 (880.260 (880.380
MHz) MHz) MHz)
880.1 880.2 880.3 880.4 880.5
Frequency, MHz
Switch 4 Position
On
Off
On
Off
Switch
Position "B4"
Cellular B Band (lower
portion)
Ch. 350
(880.500
MHz)
880.6 880.7 880.8 880.9
EMS Wireless
881.0