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: < 2 µV (for 12 dB SINAD with 1 kHz tone @ 22.5 kHz deviation)

 

108 MHz-138 MHz: < 1 µV (for 6 dB S/N with 1 kHz tone @ 30 % modulation)

 

144-148 MHz: < 0.32 µV (for 12 dB S/N with 1 kHz tone @ 3.5 kHz deviation)

 

WX-01 - WX-10: < 0.4 µV (for 12 dB S/N with 1 kHz tone @ 3.5 kHz deviation)

Selectivity:

AM/NFM: < 8 kHz/–6 dB,

 

WFM: < 200 kHz/–6 dB

Adjacent Ch. Selectivity:

AM/NFM: > 25 kHz/–60 dB,

 

WFM: > 300 kHz/–20 dB

AF Output:

0.4W @ 8 Ohms, 10 % THD

Transmitter

 

Power Output:

118 MHz-138 MHz: AM: 5.0 W (PEP), 1.5 W (Carrier Power) @ 7.4 V

 

144-148 MHz: FM:5.0 W @ 7.4 V, AM: 4.0 W (PEP), 1.3 W (Carrier Power) @ 7.4 V

Frequency Stability:

Better than ±10 ppm (14º F to 140º F/-10º C to +60º C)

Modulation System:

AM: Low Level Modulation,

 

FM: variable reactance

Maximum deviation:

± 5 kHz

Spurious Emission:

> 60 dB below carrier

Int. Microphone Type:

Condenser

Ext. Mic. Impedance:

150 Ohms

Specification are subject to change without notice.

VXA-700 SPIRIT OPERATING MANUAL

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