Vertex Standard VX-410 service manual General Specifications

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Specifications

GENERAL Specifications

Frequency Range:

400 - 470 MHz

 

440 - 490 MHz

Number of Channels:

32 channels

Battery Voltage:

12.5 / 20 / 25 kHz

Temperature Range:

7.5 VDC

Case size (W x H x D):

-22°F to +140°F (-30°C to +60°C)

Weight (approx.):

2.3 x 4.3 x 1.2 inchs with FNB-V67LI (58 x 108.5 x 30mm with FNB-V67Ll

Circuit Type:

Double-conversion superheterodyne

IFs:

50.85 MHz & 450 kHz

12 dB SINAD Sensitivity:

0.20 µ V

Audio Response:

+ 3 to -8 (from 6dB/oct pre-emphasis 300-3000Hz)

Adjacnt Selectivity:

>75 dB (25kHz) > 65 dB (12.5 kHz)

Intermodulation:

>70 dB

Spurious Rejection:

>70 dB

Image Rejection:

>70 dB

FM Ham and Noise

50 dB (25kHz) > 45 dB (12.5kHz)

AF Output:

0.5 W @4 Ohms, 3% THD

TRANSMITTER Specifications (Measurements made per EIA standard TIA/EIA-603)

Power output:

5.0 / 1.0 W (Selectable)

Frequency Stability:

better than ±2.5 ppm

Aduio Response:

+1 to -3 (from 6dB/oct pre-emphasis 300-3000hz)

Maximum Deviation:

±2.5 kHz (12.5 kHz) / ±5.0 kHz (25 kHz)

FM Noise:

>45 dB

Spurious Emission

<70 dB below carrier

AF Distortion (@ 1 kHz)

<3%

Microphone Type

2-k Ohms condenser

Measurements per EIA standards unless noted above. Specifications subject to change without notice or obligation.

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Contents Contents UHF FM TransceiverOperating Manual Reprint Battery Pack Installation and RemovalLow Battery Indication Preliminary Steps Operation Quick StartLow Power MonitorSquelch Off LockCall 1, 2, 3/Reset Follow-Me ScanDual Watch Talk AroundEmergency GroupACC 1 REC/PLAY Voice Storage OptionCloning Specifications General SpecificationsExploded View & Miscellaneous Parts Front Case AssyPage Block Diagram Page Receive Signal Path Transmit Signal PathCircuit Description Squelch ControlAutomatic Transmit Power Control Transmit InhibitSpurious Suppression PLL Frequency SynthesizerAlignment Preparation & Precautions AlignmentIntroduction Required Test EquipmentAlignment tool outline Transmitter Output Power PLL VCV Varactor Control VoltageReference Frequency MAX DeviationCtcss Deviation MAX Ref DeviationSTD Deviation Dtmf DeviationCircuit Diagram Main UnitPage Parts Layout Side aSide B RD07MVS1Parts List TESVA1C105M1-8R TEMSVA0J475M-8R GRM36CH820J50PT LED Transistor UMX1N TN RMC1/8 R33KTP 16W RMC1/16S 102JTH J24189025 1084 100k 16W RMC1/16S 102JTH J24189025 1220 Rotary Switch Circuit Diagram Parts Layout Parts List Dummy UnitFVP-25 Encryption / Dtmf Pager Unit GRM39CH100D50PT VTP-50 VX-Trunk Unit Description Value TOL MFR’S Desig Vxstd P/N Vers LOT Side DVS-5 Voice Storage Unit GRM36CH680J50PT 0 5 0 U 9 0 a