Yaesu Musen VX-800U UHF Transceiver User Manual users manual

Yaesu Musen Co., Ltd. UHF Transceiver users manual

users manual

VX-800U@Operating Manual1VX-800U Operating Manual1,Controls & ConnectorsLED IndicatorGlows Green: Scan activeBlinks Green: Busy Channel (or SQL off)Glows Red: TransmitBlinks Red: Battery Voltage is lowAntenna JackPTT (Push to Talk) SwitchMonitor ButtonLamp ButtonCH (Channel) SelectorVOL/PWR KnobLCDSEL1 KEY (Left)SEL2 KEY (Right)Toggle SWMIC/SP Jack (External MIC/SP)SpeakerMain MicrophoneSub Microphone (Noise Canceling Microphone)Battery Pack Latch16-Button DTMF Keypad (16-key version only)2,Before You BeginBattery Pack Installation and Removal To install the battery, hold the transceiver with your left hand, so your palm is over thespeaker and your thumb is on the top of the belt clip. Insert the battery pack into the batterycompartment on the back of the radio while tilting the Belt Clip outward, then close theBattery Pack Latch until it locks in place with a “Click.” To remove the battery, turn the radio off and remove any protective cases. Open the BatteryPack latch on the bottom of the radio, then slide the battery downward and out from the radiowhile unfolding the Belt Clip. Caution!: Do not attempt to open any of the rechargeable Ni-Cd packs, as they couldexplode if accidentally short-circuited. Low Battery Indication As the battery discharges during use, the voltage gradually becomes lower. When the batteryvoltage reaches 6.0 volts, substitute a freshly charged battery and recharge the depleted pack.The TX/BUSY indicator on the top of the radio will blink red when the battery voltage is low. Avoid recharging Ni-Cd batteries often with little use between charges, as this can degradethe charge capacity. We recommend that you carry an extra, fully-charged pack with you sothe operational battery may be used until depletion (this “deep cycling” technique promotesbetter long-term battery capacity). 3,Operation Preliminary Steps Install a charged battery pack onto the transceiver, as described previously. Screw the supplied antenna onto the Antenna jack. Never attempt to operate this transceiverwithout an antenna connected. If you have a Speaker/Microphone, we recommend that it not be connected until you areYAESU MUSEN CO., LTD.FCC ID: K66VX-800UEXHIBIT # 11A
VX-800U@Operating Manual2familiar with the basic operation of the VX-800. Operation Quick Start To turn the top panel’s VOL/PWR knob clockwise to turn on the radio on. Pull and turn the top panel’s CH selector knob to choose the desired operating channel. Achannel number or channel name will appear on the LCD. Rotate the VOL/PWR knob to set the volume level. If no signal is present, press and hold theMonitor button (the center button on the left side) more than 2 seconds; background noise willnow be heard, and you may use this to set the VOL/PWR knob for the desired audio level. Press and hold the Monitor button more than 2 seconds (or press the Monitor button twice) toquiet the noise and resume normal (quiet) monitoring. To transmit, press and hold the PTT switch. Speak into the microphone area of the frontpanel grille (lower right-hand corner) in a normal voice level. To return to the Receive mode,release the PTT switch. Press the top panel’s SEL1/SEL2 button to active one of the preprogrammed functions,which may have been enabled at the time of programming by the dealer. See the next sectionfor details regarding the available features. Switch the top panel’s Toggle SW position to active one of the preprogrammed functions,which may have been enabled at the time of programming by the dealer. There are threepositions of [A (left)], [B (center)] and [C (right)] in the toggle switch. See the next section fordetails regarding the available features. Press the DTMF keys on the telephone keypad to send DTMF tones.(16-key version only) If a Speaker/Microphone is available, remove the plastic cap and its two mounting screwsfrom the right side of the transceiver, then make the connector of the Speaker/Microphonetouch; secure the connector pin using the screw supplied with the Speaker/Microphone. Holdthe speaker grille up next to your ear while receiving. To transmit, press the PTT switch on theSpeaker/Microphone, just as you would on the main transceiver’s body.Note: Save the original plastic cap and its mounting screws. They should be re-installed whennot using the Speaker/Microphone.4,KEY and TOGGLE FunctionsVX-800 have the [SEL1], [SEL2], [MON], [LAMP] Key, ([A], [B], [C], [D] Key: only16-key version) and Toggle SW. The Key and SW function can be customized, viaprogrammed by YAESU dealer, to meet your communications requirements. Somefeatures may require the purchase and installation of optional internal accessories. Thepossible KEY and SW programming features are illustrated below.[SEL1], [SEL2], [MON], [LAMP],[A], [B], [C] and [D] KeyMonitor (Generally, it sets to MON Key)Lamp (Generally, it sets to LAMP Key)Channel ScanDual WatchHigh/Low PowerTalk AroundTX Save DisableEncryption Disable (only, when using DTMF/Encryption Unit)Follow-Me DWGroup UpGroup DownChannel UpChannel DownSET ModeCall/Reset (only, when using DTMF/Encryption Unit)YAESU MUSEN CO., LTD.FCC ID: K66VX-800UEXHIBIT # 11B
VX-800U@Operating Manual3Speed Dial (only, when using DTMP/Encryption Unit)Emergency (only, when using DTMF/Encryption Unit)LCD InvertTOGGLE SwitchChannel ScanDual WatchHigh/Low PowerTalk AroundTX Save DisableEncryption Disable (only, when using DTMF/Encryption Unit)Follow-Me ScanLockLCD Invert5,Understanding Radio WavesRadio waves travel from one point to another by several different means. The general termfor these methods of wave travel is “propagation”. You may know that “shortwave”signals can be propagated over distances of several thousand miles by reflection off of theupper regions of the atmosphere.Your hand-held transceiver, on the other hand, operates on the so-called VHF (Very-HighFrequency) band. On this band, radio waves usually do not reflect off of the atmosphere.Instead, the radio waves behave almost as light: they travel in a straight line, and whenthey meet a building or obstruction, they go no further in that direction.Therefore, it is important that you be as high and free from obstructions as possible tocover the greatest distance when using your radio. If you operate from inside a car orbuilding, any metal around you can absorb much of the signal, both transmitted andreceived. Coverage may therefore be very poor under those conditions. However, if youmust operate from indoors, moving next to a window will improve communications.In view of the factors just discussed, you can easily see the potential benefit of holding theradio up high near your mouth while transmitting. In this way the antenna is high andclear, and coverage is best.On final note regarding propagation is useful in improving coverage. Because radio wavesat VHF is similar to light waves, they do reflect, to varying degrees, off of hills, buildings,and the like. In a crowded urban area, with many close buildings close together, manyreflections may occur, and interfere with one another, causing variations in signal strengthat different locations.Therefore, if a signal is weak and you walk a few feet in any direction, reception maysuddenly become clear, because a particular reflection path may become dominant.Reflections are frequently useful, as they can allow for communications between twostations over a highly obstructed path.6,SpecificationsGENERALFrequency Range: 450-485 MHz (Type-A)450-485 MHz (Type-CS)450-485 MHz (Type-D)450-485 MHz (Type-F)Number of Channels: 200 channelsChannel Spacing: 12.5/25/30 kHzBattery Voltage: 7.5 VDCTemperature Range: –30 °C to +60 °CCase Size (W x H x D): 58 x 110 x 28.9 mm w/FNB-V57YAESU MUSEN CO., LTDFCC ID: K66VX-800UEXHIBIT # 11C
VX-800U@Operating Manual4Weight (approx.): 360 grams with FNB-V57, antenna, belt clipRECEIVERCircuit Type: Double-conversion super-heterodyneIFs: 44.25 MHz & 450 kHz12-dB SINAD Sensitivity: < 0.2 µVSquelch Sensitivity: < 0.25 µVSelectivity: > 70 dBIntermodulation: > 70 dBSpurious Rejection: > 70 dBImage Rejection: > 70 dBAF Output: 0.5 W @ 16 Ω, 5 % THD (BTL output)TRANSMITTERPower Output: 5.0/1.0 W (Selectable)Frequency Stability: better than ±2.5 ppmModulation System: Direct FMMaximum Deviation: ±2.5 kHz (12.5 kHz)/±5 kHz (25 kHz)FM Noise: > 35 dB (12.5 kHz)/> 40 dB (25 kHz)Spurious Emission: > 60 dB below carrierAF Distortion (@ 1 kHz): < 5 %Microphone Type:2-kΩ condenserSpecifications are subject to change without notice or obligation.Accessories & OptionsFVP-25 Encryption/DTMF Pager UnitFNB-V57 7.2 V 1100 mAh Ni-Cd BatteryFBA-25 Battery CaseNC-XX 13.8 VDC Rapid Desk-Top ChargerNC-XXB 120 VAC Rapid Desk-Top ChargerNC-XXC 230-240 VAC Rapid Desk-Top ChargerNC-XXU 230 VAC Rapid Desk-Top ChargerNC-XX Overnight Desktop ChargerVTP-50 VX-Trunk UnitMH-XXB4B Speaker/MicrophoneMH-XXA4B Earpiece MicrophoneVC-XX VOX HeadsetCT-71 PC Programming CableCT-27 Radio-to-Radio Programming CableYAESU MUSEN CO., LTD.FCC ID: K66VX-800UEXHIBIT # 11D

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