Vertex Standard VX-4200 service manual Specifications, General

ENGESBRA Distribuidor Autorizado Vertex Standard www.radio-vertex.com.br Tel.(11) 2983-1335

Specifications

General

Frequency Ranges:	134 -174 MHz
Emission Type:	F3E
Channel Spacing:	12.5/20/25 kHz
Number of Channels:	8 channels (VX-4100 Series)
	501 channels (VX-4200 Series)
Power Supply Voltage:	13.6 V ± 10% (50 W version)

13.8V ± 10% (25 W version)

Current Consumption (@13.6 V): 11 A (TX: 50 W)

	300 mA (RX: SQL Closed)
	2.5A (RX: 2 W AF Out)
Operating Temperature Range:	–22 °F to +140 °F (–30 °C to +60 °C)
Frequency Stability:	±2.5 ppm (–22 °F to +140 °C [–30 °C to +60 °C])
Antenna Impedance:	50 Ω
Case Size (W x H x D):	6.5" x 1.7" x 6.1" inch (165 x 43 x 155 mm) (W/O knob)
Weight (Approx.):	3.1 lbs (1.4 kg)

Receiver

Circuit Type:	Double-conversion Superheterodyne
Intermediate Frequency:	1st: 50.85 MHz, 2nd: 450 kHz
Sensitivity (EIA 12 dB SINAD):	0.25 µV
Sensitivity (20 dB Quieting):	0.4 µV
Adjacent Channel Selectivity:	75 dB (12.5 kHz)
	85 dB (25 kHz)
Spurious & Image Rejection:	90 dB
Intermodulation:	75 dB (12.5 kHz)
	80 dB (25 kHz)
Hum & Noise:	44 dB (12.5 kHz)
	50 dB (25 kHz)
Audio Output:	12 W @4 Ohms, 5% THD (External)
	2 W @32 Ohms, 5% THD (Internal)

Transmitter

Modulation Type:	Variable Reactance
Power Output:	50/25/10 W (50 W version)
	25/12.5/5 W (25 W version)
Conducted Spurious Emission:	75 dB below Carrier
Maximum Deviation:	±2.5 kHz (12.5 kHz)
	±5 kHz (25 kHz)
FM Hum & Noise:	44 dB (12.5 kHz)
	50 dB (25 kHz)
Audio Distortion:	3 % (@1 kHz)

Specifications subject to change without notice or obligation.

A-1

ENGESBRA Distribuidor Autorizado Vertex Standard www.engesbra.com.br/vertex Tel.(11) 2983-1335