EM-2115 4.0 SERVICE, MAINTENANCE, CALIBRATION
(EM2115S4-14)
SIGNAL INPUT LEVEL
DC OUTPUT
VOLTAGE
@ A8-16
(±0.05 VDC)
175 kHz
@A4-J3
1.6 MHz
@A4J2
8.7 MHz
@A4J1
+118 dB(µV)
+117 dB(µV)
+111 dB(µV)
+1.96 VDC
+108 dB(µV)
+107 dB(µV)
+101 dB(µV)
+1.73 VDC
+98 dB(µV)
+97 dB(µV)
+91 dB(µV)
+1.50 VDC Ref.
+88 dB(µV)
+87 dB(µV)
+81 dB(µV)
+1.27 VDC
+78 dB(µV)
+77 dB(µV)
+71 dB(µV)
+1.04 VDC
+68 dB(µV)
+67 dB(µV)
+61 dB(µV)
+0.808 VDC
+58 dB(µV)
+57 dB(µV)
+51 dB(µV)
+0.577 VDC
+48 dB(µV)
+47 dB(µV)
+41 dB(µV)
+0.346 VDC
+38 dB(µV)
+37 dB(µV)
+31 dB(µV)
+0.115 VDC
j.
Switch the Frequency Range to 25-50 MHz. Repeat Steps e thru i, except for the
following:
1)
Remove the subminiature coaxial cable from A4J1.
2)
Set the Bandwidth to 1 MHz.
3)
Connect the Signal Generator setup to A4J1 and apply a 8.7 MHz cw signal at
an input level of +91 dB(µV). Refer to Table 4.1 for the signal input levels.
4)
At the end of this step remove the external input and reconnect the subminature
coaxial cable to A4J1.
4.4.4 Narrowband (0.1) Filter Module A6 Adjustment/Verification
Equipment required: Signal Generator.
Digital Voltmeter.
10 dB Step Attenuator.
36 pin double-sided extension board (ECB-30).
a.
Loosen the eight quarter turn fasteners that secure the Submodule Assembly into
the receiver.
Do not remove
any of the interconnecting cables and harnesses.
b.
Lift up the Submodule Assembly, lay a piece of masonite or similar material
across the receiver and set the Submodule Assembly on it, A6 Narrowband Mod-
ule side face up. Take care not to strain or break the cabling or harness wiring.
Содержание EM-2115
Страница 1: ...INSTRUCTION MANUAL INTERFERENCE ANALYZER MODEL EM 2115 EMC 30...
Страница 68: ...EM 2115 3 0 PERFORMANCE CHECK EM2115S3 13...
Страница 104: ...EM 2115 4 0 SERVICE MAINTENANCE CALIBRATION EM2115S4 36...
Страница 106: ...EM 2115 4 0 SERVICE MAINTENANCE CALIBRATION EM2115S4 38...
Страница 108: ...EM 2115 4 0 SERVICE MAINTENANCE CALIBRATION EM2115S4 40...
Страница 110: ...EM 2115 4 0 SERVICE MAINTENANCE CALIBRATION EM2115S4 42...
Страница 112: ...EM 2115 4 0 SERVICE MAINTENANCE CALIBRATION EM2115S4 44...