Vertex Standard VXA-710

VXA-710 SPIRIT OPERATING MANUAL

SPECIFICATIONS

Receiver

Circuit Type: Double-conversion Superheterodyne

IFs: 35.4 MHz & 450 kHz ( AM / NFM ),

45.65 MHz & 10.7MHz ( WFM )

Sensitivity: 88-108 MHz: better than 2 µV

(for 12 dB SINAD with 1 kHz tone @ 22.5 kHz deviation)

108 MHz-137 MHz: better than 1 µV

(for 6 dB S/N with 1 kHz tone @ 30 % modulation)

BRS-01 - BRS-21: better than 0.32 µV

(for 12 dB S/N with 1 kHz tone @ 3.5 kHz deviation)

WX-01 - WX-10: better than 0.4 µV

(for 12 dB S/N with 1 kHz tone @ 3.5 kHz deviation)

Selectivity: AM/FM: more than 8 kHz/–6 dB,

WFM: more than 200 kHz/–6 dB

Adjacent Ch. Selectivity: AM/FM: less than 25 kHz/–60 dB,

WFM: less than 300 kHz/–20 dB

AF Output: 0.2 W @ 8 Ohms, 10 % THD @ 7.4V

0.4 W @ 8 Ohms, 10 % THD @ 13.8V

Transmitter

Power Output: 118 MHz-137 MHz: AM: 5.0 W (PEP), 1.5 W (Carrier Power) @ 7.4 V

Frequency Stability: Better than ±2.5 ppm (–22 °F to 140 °F/–30 °C to +60 °C)

Modulation System: AM: Low Level Modulation

Spurious Emission: Better than 60 dB below carrier

Int. Microphone Type: Condenser

Ext. Mic. Impedance: 150 Ohms