SPECIFICATIONS

 

 

 

 

 

TRANSMITTER

 

 

 

 

RF Power Output:

50/144/430 MHz

 

1.0 W (@4.5 V: AA x 3)

 

 

 

 

5.0 W (@7.4 V or EXT DC)

 

50 MHz AM

 

1.0 W (Fixed)

 

222 MHz (USA only)

0.5 W (@4.5 V: AA x 3)

 

 

 

 

1.5 W (@7.4 V or EXT DC)

 

L3: 2.5 W, L2: 1 W, L1: 0.05 W (@7.4 V, 50/144/430 MHz)

Modulation Type:

L3: 1 W, L2: 0.5 W, L1: 0.05 W (@7.4 V, 222 MHz)

F2E, F3E: Variable Reactance

Maximum Deviation:

A3E: Low Level Amplitude Modulation (50 MHz only)

±5 kHz (F2E/F3E)

 

Spurious Emission:

At least 60 dB below (@ TX power HI/L3)

 

At least 50 dB below (@ TX power L2/L1)

Microphone Impedance: 2K Ohms

 

 

RECEIVER

 

 

 

 

Circuit Type:

NFM, AM:

Double-Conversion Superheterodyne

 

WFM:

Triple-Conversion Superheterodyne

IF:

AM/FM Radio: Single-Conversion Superheterodyne

NFM, AM

1st:

47.25 MHz (A (Main) Band),

 

 

 

 

46.35 MHz (B (Sub) Band),

 

 

 

2nd:

450 kHz

 

WFM

1st: 45.8 MHz, 2nd: 10.7 MHz, 3rd: 1 MHz

Sensitivity:

AM/FM Radio:

130 kHz

3.0 μV for 10 dB S/N (0.5-30 MHz @AM)

(A (Main) Band)

0.35 μV (TYP) for 12 dB SINAD (30-54 MHz @NFM)

 

1.0

μV (TYP) for 12 dB SINAD (54-76 MHz @NFM)

 

1.0

μV (TYP) for 12 dB SINAD (54-59 MHz @NFM, USA Version)

 

1.5

μV (TYP) for 12 dB SINAD (76-108 MHz @WFM)

 

1.5

μV (TYP) for 12 dB SINAD (59-108 MHz @WFM)

 

1.5

μV (TYP) for 10 dB SN (108-137 MHz @AM)

 

0.2

μV for 12 dB SINAD (137-140 MHz @NFM)

 

0.16 μV for 12 dB SINAD (140-150 MHz @NFM)

 

0.2

μV for 12 dB SINAD (150-174 MHz @NFM)

 

1.0

μV for 12 dB SINAD (174-222 MHz @WFM)

 

0.5

μV for 12 dB SINAD (300-350 MHz @NFM)

 

0.2

μV for 12 dB SINAD (350-400 MHz @NFM)

 

0.18 μV for 12 dB SINAD (400-470 MHz @NFM)

 

1.5

μV for 12 dB SINAD (470-540 MHz @WFM)

 

3.0

μV (TYP) for 12 dB SINAD (540-800 MHz @WFM)

 

1.5

μV (TYP) for 12 dB SINAD (800-999.90 MHz @NFM)

Sensitivity:

 

 

 

(Cellular Blocked)

0.18 μV(TYP) for 12 dB SINAD (50-54 MHz @NFM)

(B (Sub) Band)

0.18 μV for 12 dB SINAD (144-148 MHz @NFM)

0.2μV for 12 dB SINAD (430-450 MHz @NFM)

Selectivity:12 kHz/35 kHz (–6dB/–60dB: NFM, AM)

200 kHz/300 kHz (–6dB/–20dB: WFM)

AF Output:200 mW @ 8 Ohms for 10 % THD (@ 7.4 V DC) 400 mW @ 8 Ohms for 10 % THD (@ 13.8 V DC)

Specifications are subject to change without notice, and are guaranteed within the 50/144/222/ 430 MHz amateur bands only.

VX-8R OPERATING MANUAL

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