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

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Document ID	69020
Application ID	4G3+CZutZWoKb9HOSoFC6g==
Document Description	users manual
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	2.09kB (26116 bits)
Date Submitted	1999-11-10 00:00:00
Date Available	2000-02-09 00:00:00
Creation Date	2001-05-18 11:59:34
Producing Software	Acrobat Distiller 4.0 for Windows
Document Lastmod	2001-05-18 11:59:35
Document Title	users manual

VX-800U @Operating Manual
VX-800U Operating Manual
1,Controls & Connectors
LED Indicator
Glows Green: Scan active
Blinks Green: Busy Channel (or SQL off)
Glows Red: Transmit
Blinks Red: Battery Voltage is low
Antenna Jack
PTT (Push to Talk) Switch
Monitor Button
Lamp Button
CH (Channel) Selector
VOL/PWR Knob
LCD
SEL1 KEY (Left)
SEL2 KEY (Right)
Toggle SW
MIC/SP Jack (External MIC/SP)
Speaker
Main Microphone
Sub Microphone (Noise Canceling Microphone)
Battery Pack Latch
16-Button DTMF Keypad (16-key version only)
2,Before You Begin
Battery Pack Installation and Removal

 To install the battery, hold the transceiver with your left hand, so your palm is over the
speaker and your thumb is on the top of the belt clip. Insert the battery pack into the battery
compartment on the back of the radio while tilting the Belt Clip outward, then close the
Battery 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 Battery
Pack latch on the bottom of the radio, then slide the battery downward and out from the radio
while unfolding the Belt Clip.
Caution!: Do not attempt to open any of the rechargeable Ni-Cd packs, as they could
explode if accidentally short-circuited.
Low Battery Indication

 As the battery discharges during use, the voltage gradually becomes lower. When the battery
voltage 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 degrade
the charge capacity. We recommend that you carry an extra, fully-charged pack with you so
the operational battery may be used until depletion (this “deep cycling” technique promotes
better 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 transceiver
without an antenna connected.

 If you have a Speaker/Microphone, we recommend that it not be connected until you are
YAESU MUSEN CO., LTD.
FCC ID: K66VX-800U
EXHIBIT # 11A
VX-800U @Operating Manual
familiar 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. A
channel 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 the
Monitor button (the center button on the left side) more than 2 seconds; background noise will
now 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) to
quiet the noise and resume normal (quiet) monitoring.

 To transmit, press and hold the PTT switch. Speak into the microphone area of the front
panel 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 section
for 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 three
positions of [A (left)], [B (center)] and [C (right)] in the toggle switch. See the next section for
details 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 screws
from the right side of the transceiver, then make the connector of the Speaker/Microphone
touch; secure the connector pin using the screw supplied with the Speaker/Microphone. Hold
the speaker grille up next to your ear while receiving. To transmit, press the PTT switch on the
Speaker/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 when
not using the Speaker/Microphone.
4,KEY and TOGGLE Functions
VX-800 have the [SEL1], [SEL2], [MON], [LAMP] Key, ([A], [B], [C], [D] Key: only
16-key version) and Toggle SW. The Key and SW function can be customized, via
programmed by YAESU dealer, to meet your communications requirements. Some
features may require the purchase and installation of optional internal accessories. The
possible KEY and SW programming features are illustrated below.
[SEL1], [SEL2], [MON], [LAMP],[A], [B], [C] and [D] Key
Monitor (Generally, it sets to MON Key)
Lamp (Generally, it sets to LAMP Key)
Channel Scan
Dual Watch
High/Low Power
Talk Around
TX Save Disable
Encryption Disable (only, when using DTMF/Encryption Unit)
Follow-Me DW
Group Up
Group Down
Channel Up
Channel Down
SET Mode
Call/Reset (only, when using DTMF/Encryption Unit)
YAESU MUSEN CO., LTD.
FCC ID: K66VX-800U
EXHIBIT # 11B
VX-800U @Operating Manual
Speed Dial (only, when using DTMP/Encryption Unit)
Emergency (only, when using DTMF/Encryption Unit)
LCD Invert
TOGGLE Switch
Channel Scan
Dual Watch
High/Low Power
Talk Around
TX Save Disable
Encryption Disable (only, when using DTMF/Encryption Unit)
Follow-Me Scan
Lock
LCD Invert
5,Understanding Radio Waves
Radio waves travel from one point to another by several different means. The general term
for 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 the
upper regions of the atmosphere.
Your hand-held transceiver, on the other hand, operates on the so-called VHF (Very-High
Frequency) 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 when
they 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 to
cover the greatest distance when using your radio. If you operate from inside a car or
building, any metal around you can absorb much of the signal, both transmitted and
received. Coverage may therefore be very poor under those conditions. However, if you
must 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 the
radio up high near your mouth while transmitting. In this way the antenna is high and
clear, and coverage is best.
On final note regarding propagation is useful in improving coverage. Because radio waves
at 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, many
reflections may occur, and interfere with one another, causing variations in signal strength
at different locations.
Therefore, if a signal is weak and you walk a few feet in any direction, reception may
suddenly become clear, because a particular reflection path may become dominant.
Reflections are frequently useful, as they can allow for communications between two
stations over a highly obstructed path.
6,Specifications
GENERAL
Frequency Range:
Number of Channels:
Channel Spacing:
Battery Voltage:
Temperature Range:
Case Size (W x H x D):
450-485 MHz (Type-A)
450-485 MHz (Type-CS)
450-485 MHz (Type-D)
450-485 MHz (Type-F)
200 channels
12.5/25/30 kHz
7.5 VDC
–30 °C to +60 °C
58 x 110 x 28.9 mm w/FNB-V57
YAESU MUSEN CO., LTD
FCC ID: K66VX-800U
EXHIBIT # 11C
VX-800U @Operating Manual
Weight (approx.):
360 grams with FNB-V57, antenna, belt clip
RECEIVER
Circuit Type:
IFs:
12-dB SINAD Sensitivity:
Squelch Sensitivity:
Selectivity:
Intermodulation:
Spurious Rejection:
Image Rejection:
AF Output:
TRANSMITTER
Power Output:
Frequency Stability:
Modulation System:
Maximum Deviation:
FM Noise:
Spurious Emission:
AF Distortion (@ 1 kHz):
Microphone Type:
Double-conversion super-heterodyne
44.25 MHz & 450 kHz
< 0.2 µV
< 0.25 µV
> 70 dB
> 70 dB
> 70 dB
> 70 dB
0.5 W @ 16 Ω, 5 % THD (BTL output)
5.0/1.0 W (Selectable)
better than ±2.5 ppm
Direct FM
±2.5 kHz (12.5 kHz)/±5 kHz (25 kHz)
> 35 dB (12.5 kHz)/> 40 dB (25 kHz)
> 60 dB below carrier
<5%
2-kΩ condenser
Specifications are subject to change without notice or obligation.
FVP-25
FNB-V57
FBA-25
NC-XX
NC-XXB
NC-XXC
NC-XXU
NC-XX
VTP-50
MH-XXB4B
MH-XXA4B
VC-XX
CT-71
CT-27
Accessories & Options
Encryption/DTMF Pager Unit
7.2 V 1100 mAh Ni-Cd Battery
Battery Case
13.8 VDC Rapid Desk-Top Charger
120 VAC Rapid Desk-Top Charger
230-240 VAC Rapid Desk-Top Charger
230 VAC Rapid Desk-Top Charger
Overnight Desktop Charger
VX-Trunk Unit
Speaker/Microphone
Earpiece Microphone
VOX Headset
PC Programming Cable
Radio-to-Radio Programming Cable
YAESU MUSEN CO., LTD.
FCC ID: K66VX-800U
EXHIBIT # 11D

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Create Date                     : 2001:05:18 11:59:34
Producer                        : Acrobat Distiller 4.0 for Windows
Modify Date                     : 2001:05:18 11:59:35-04:00
Page Count                      : 4

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