Yaesu Musen Yaesu Vr 5000 Communications Reciever Operating Manual

VR-5000 OPERATING MANUAL9
Installation
We recommend that, when using an external DC power supply, you turn the power supply
on, then turn on the VR-5000; when shutting down, turn the VR-5000 off first, then turn
off the power supply.
If the input voltage becomes too low (due to power supply failure or a problem in the DC
cable), the VR-5000’s display will indicate “ERROR LOW VOLTAGE” If this should hap-
pen, check the output voltage from your power supply; if it is OK, then look for a problem
in the DC...

VR-5000 OPERATING MANUAL10
Installation
Antennas for Low- and Medium-Frequency Reception (below 2 MHz)
Good all-around reception will be obtained using a single long random length wire, con-
nected to the (red) Hi-Z terminal on the rear panel. The wire should be supported as high
above ground as possible by insulators at the end at possibly mid-span, depending on the
length of the wire. The longer the wire, the stronger will be the signals received.
Insulated wire is generally preferred, as it is less...

VR-5000 OPERATING MANUAL11
Installation
Antennas for VHF and UHF Reception
Any antenna used for reception above 30 MHz will be fed with coaxial cable, so it must be
connected to the Antenna A jack.
The wide frequency coverage of the VR-5000 means that a wide-band vertical antenna
(such as the “Discone” type) will be required for reasonable performance on the VHF and
UHF bands. Optimized narrow-band vertical antennas will provide better performance on
a specific frequency range, at the expense of poorer...

VR-5000 OPERATING MANUAL12
Installation
MUTE Terminal Connections
The MUTE jack on the rear panel allows the receiver to be silenced during  transmission,
should the VR-5000 be utilized with an external transmitter (not available from Yaesu).
Typically, such a transmitter will have an internal relay, the contacts of which will close to
ground during transmission; connection of a cable connected to this type of switching
system will cause the audio output from the VR-5000 to be cut off (when the center...

VR-5000 OPERATING MANUAL13
Installation
+8V Jack Connections
The +8V jack may be used for powering of small accessories. The output current, however,
is limited to 100 mA or less, so check the current requirements for your accessory before
connecting it to this jack.
Exercise particular care with any cables connected to this jack. If the far end of the cable
should become shorted to ground (perhaps by accidental contact with a metal surface), the
internal fuse for this jack will “blow” instantly.
IF OUT...

VR-5000 OPERATING MANUAL14
Basic Operation
INTRODUCTION
The VR-5000 utilizes a “VFO” (Variable Frequency Oscillator) tuning system for fre-
quency selection. Two VFOs are provided, termed the “MAIN” and “SUB” VFOs in this
manual. The VFOs utilize tuning “steps” which vary between operating modes, and which
may be set by the owner according to your location and operating preferences. Fundamen-
tally, however, a VFO may simply be thought of as a tuning dial for the receiver.
Details regarding setup and...

VR-5000 OPERATING MANUAL15
Basic Operation
UP(

)
/DOWN(
)
 Tuning
Pressing the [

(
)
/(
)]
 keys allows tuning in the pre-programmed steps established
for the current receiving band. Pressing the [
(
)]
 key causes the VR-5000 to be tuned
toward a higher frequency, while pressing the [

(
)]
 key will lower the receiving frequency.
If you press the [
F]
 key momentarily, then press the [

(
)
/(
)]
 keys, frequency steps
of 10 MHz will be selected. The larger 10 MHz hops are extremely useful...

VR-5000 OPERATING MANUAL16
CHANNEL STEP SELECTION
Operation of the VR-5000 initially is set up in the “AUTO” mode (mentioned in the previ-
ous section), whereby the reception mode (such as AM or FM) is automatically set accord-
ing to the frequency in use; at the same time, the channel steps typically used in that fre-
quency segment are also programmed automatically.
However, some frequency segments involve several different services which may use dif-
ferent channel steps. So you may wish to modify the...

VR-5000 OPERATING MANUAL17
Here are some of the features available during Dual Receive operation:
Press the [
M/S(
SUB SET)]
 key momentarily to toggle the operating VFO between the
MAIN VFO and SUB VFO.
When tuning on the MAIN VFO, the SUB VFO frequency will track the MAIN VFO
(VFO Tracking feature).
To disable the VFO Tracking feature, press the [
M/S(
SUB SET)]
 key after the [
F]
 key
is pressed. Repeat the same procedure to re-enable the VFO Tracking feature again.
To disable the SUB VFO, and...

VR-5000 OPERATING MANUAL18
Basic Operation
RECEIVING SHORT-WAV E BROADCAST STATIONS
A special bank of prominent Short-wave Broadcast stations has been pre-programmed at
the factory, for quick tuning. Each station selection will have been programmed with four
of its most-often used frequencies, representing both night-time frequencies (generally
below 10 MHz) and day-time frequencies (generally above 10 MHz).
Of course, you are not “required” to listen just to these stations; many other stations will be...