Shure J4 User Manual page 4

MICROPHONE
ELEMENT
NOTE: LAVALIER MIC TIES PINS 3 AND 4
TOGETHER; GUITAR CABLE DOES NOT.
U1 Transmitter Output
Antenna Impedance:
Nominal Output Level:
Maximum Output Level:
U2 Transmitter Input
Input Configuration:
Actual Impedance:
Maximum Input Level:
U2 Transmitter Output
Connector:
Pin Assignments:
Antenna Impedance:
Nominal Output Level:
Maximum Output Level:
Fig. 1A
2
4
3
1
(LEMO 4 PIN) MIC JACK BOARD
1
2
10K Ω
3
4
3 Vp–p (0.5 dBV) using 1 kHz signal for 1% THD at minimum
Fig. 1B
U1 MIC JACK BOARD
2
4
500 Ω
3
27 pF
1
Fig. 1C
499 Ω
AUDIO
27 pF
499 Ω
BIAS
27 pF
SHIELD
Wireless microphone element
gain setting without pad.
SMC (Internal)
Shell = Ground
Center = Signal
+13.5 dBm
4
500 Ω
27 pF
20K Ω
50 Ω
+10 dBm
+13.5 dBm
20 kΩ
50 Ω
+10 dBm
+5 V
AUDIO
GROUND