VX-8R OPERATING MANUAL 167
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)
L3: 1 W, L2: 0.5 W, L1: 0.05 W (@7.4 V, 222 MHz)
Modulation Type: F2E, F3E: Variable Reactance
A3E: Low Level Amplitude Modulation (50 MHz only)
Maximum Deviation: ±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
AM/FM Radio: Single-Conversion Superheterodyne
IF: 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
AM/FM Radio: 130 kHz
Sensitivity: 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)
(Cellular Blocked)
Sensitivity: 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)
0.2 μV 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.
