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16
SPECIFICATIONS
System Specifications
RF Carrier Frequency Range
722 to 865 MHz (country dependent)
Operating Range
300 ft. (environment dependent)
Audio Frequency Response
50 Hz to 12 kHz (+/–3 dB); earphone dependent
Image Rejection
55 dB typical
Spurious Rejection
60 dB typical
Total Harmonic Distortion (1 KHz)
0.8% typical (Ref. ±35 KHz deviation)
Modulation
FM ±35 KHz Deviation (Nominal), MPX Stereo
Channel Separation
35 dB typical
Signal-to-Noise Ratio
80 dB typical (A-weighted)
Operating Temperature
-7° C to +49° C
(+20° F to 120° F)
P4M Mixer Specifications
Measurement Conditions (unless otherwise specified): full gain; 1 KHz, one channel activated; source impedances: Mic 150 Ω, Aux Level 150 Ω;
terminations: Line 600 Ω.
Frequency Response (Ref 1 KHz, controls centered)
20 Hz to 20 Khz ± 2 dB
INPUT Specifications
Input
1–4 (front panel) Aux In
Gain (Maximum) 43 dB 0 dB
Impedance (at 1kHz) 5800 Ω 18 kΩ (each)
9100 Ω (1/L mono)
Input Clipping Level +12dBV +12 dBV
Crosstalk -100 dB -90 dB
Common Mode Rejection > 75 dB > 70 dB
OUTPUT Specifications
Output
Split 1 – 4 Mix Out
Impedance N/A 500 Ω
Output Clipping Level N/A +5 dBV (10 kΩ balanced
load, -30 dBV input ch. 1 –
4.)
Noise (100 Hz to 22 kHz) -110 dBV -100 dBV (all controls
CCW)
-62 dBV (all controls CW)
Distortion (THD) at 1kHz) .0005% < .05% (0 dBV output)
Crosstalk -100 dB -70 dB
LEDs: Resultant Mix Out Level
Green: -30 dBV
Yellow: -10 dBV
Red: 0dBV
Current
120 mA max.
Power Requirements
Operating voltage 14–18 Vdc
Supplied with one of the following external power supplies:
S Model PS40: 120 Vac, 60 Hz input.
S Model PS40E, Model PS40UK: 230 Vac, 50/60 Hz input.
NOTE: Courtesy DC connector is protected from short by a self-reset-
ting “Polyfuse”. Maximum recommended load is 250mA (2 P4Ms or 1
P4T.)
Phantom Power
The P4M does not produce phantom power, but phantom power is al-
lowed to pass through Split Outputs 1–4 to inputs 1–4 respectively.
Audio Polarity
All outputs in polarity with all inputs.
XLR Pin 2 is “hot” with respect to Pin 3; Pin 1 is ground.
1/4” TRS tip is “hot” with respect to ring; sleeve is ground.
Temperature Range
Operating -7° to 49° C (20° to 120° F). . . . . . . . . . . . . . . . . . . . . . . . .
Storage -29° to 74° C (-20° to 165° F). . . . . . . . . . . . . . . . . . . . . . . . . .
Overall Dimensions
44 mm H x 218 mm W x 162 mm D
(1.72 x 8.60 x 6.37 inches)
Net Weight
1.20 Kg (2 lbs, 10 oz)
P4T Transmitter Specifications
RF Output Power
50 mW (+17 dBm) typical conducted (country
dependent)
Modulation Limiter
Internal peak limiter (>10:1 compression)
Antenna
External whip, 50 Ω BNC connector
Current
250 mA maximum
Dimensions
219.2 mm X 43.6 mm X 136.5 mm (8.6 in. X 1.7 in. X 5.4 in.)
Net Weight
907.2 g (2 lbs., 0 oz.)