VX-261 VHF FM Transceiver Service Manual
2
Specifications
General
Frequency range:
136-174 MHz
Channel:
16 Channels
Power Supply Voltage:
7.4 V DC ± 10%
Current Consumption:
1.8 A (5 W TX)
Channel Spacing:
12.5 / 25 kHz (USA Model: 12.5 kHz)
PLL Steps:
2.5 / 5 / 6.25 kHz
IP Rating:
IP55
Operating Temperature Range:
–22 °F to +140 °F (–30 °C to +60 °C)
Charging Temperature Range:
+32 °F to +113 °F (0 °C to +45 °C)
Frequency Stability:
±2.5 ppm
RF Input-Output:
50 Ohm (unbalance)
Dimension (H x W x D):
2.3 x 4.3 x 1.3 inches (58.4 x 109 x 32.3 mm) (with FNB-V133LI-UNI)
2.3 x 4.3 x 1.6 inches (58.4 x 109 x 39.9 mm) (with FNB-V134LI-UNI)
Weight (Approx.):
9.9 oz (281 g) (with FNB-V133LI-UNI, Antenna, Belt Clip)
11.6 oz (330 g) (with FNB-V134LI-UNI, Antenna, Belt Clip)
Receiver
(Measured by TIA/EIA-603)
Circuit Type:
Double Conversion Super-heterodyne
Sensitivity (12 dB SINAD):
0.25 µV
Adjacent Channel Selectivity:
65 / 60 dB (W/N)
Hum and Noise:
40 dB
Intermodulation:
65 dB
Spurious Image Rejection:
70 dB
Conducted Spurious:
–57 dBm
Audio output:
700 mW (intemal @ 16 Ohm 5% THD)
500 mW (extemal @ 4 Ohm 5% THD)
Transmitter
(Measured by TIA/EIA-603)
Output Power:
5 / 1 W
Modulation:
16K0F3E / 11K0F3E
Maximum Deviation:
±5.0 kHz / ±2.5 kHz
Conducted Spurious Emissions:
70 dB below carrier
FM Hum & Noise:
40 dB
Audio Distortion:
<5% @ 1 kHz
Specifications subject to change without notice or obligation.
