Lightspeed 7100DX QUAD-RAK, Руководство пользователя

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Operating Instructions
Channel Selection - Receive Channel Selection - Receive
Channel Selection - Receive Channel Selection - Receive Channel Selection - Receiverrrrr (Cont.)
(Cont.)
(Cont.) (Cont.) (Cont.)
Manual Channel Selection Manual Channel Selection Manual Channel Selection Manual Channel Selection Manual Channel Selection
6. Pressing the Left Channel button changes the first number [0-9].
7. Pressing the Right Channel button changes the second number [0-9]. Once a
frequency is selected, you will need to select the same channel on the
corresponding transmitter
(handheld or belt-pack).
NOTE: There are 5 different groupings of 100 channels available, which are
sent out to maximize clear channels in a specific geography. When the system
is powered on, the two letters that initially blink in the Channel window on the
receiver indicate the frequency group (see chart on page 19 for further details).
Installing or Replacing a Receiver Module: Installing or Replacing a Receiver Module: Installing or Replacing a Receiver Module: Installing or Replacing a Receiver Module: Installing or Replacing a Receiver Module:
Note: Make sure the Quad-RAK is turned off.
Remove the two screws securing the module
or filler panel using a small phillips screwdriver.
To remove the module, use a small flat-blade
screwdriver. Carefully insert the blade under the
face plate edge and nudge it outward. Grasp the
edges with both hands and slide outward. Install
the new module by aligning it with the guide rails
and sliding all the way in to engage the connector
at the rear of the module.
Replace the two screws.
Remove
Screw
Remove
Screw
LightSPEED
7100R
UHF TRUE
DIVERSITY
RECEIVER
A B
LOW
BAT
SCAN SQ RF
CHANNEL
Squelch Adjustment: Squelch Adjustment:
Squelch Adjustment: Squelch Adjustment:
Squelch Adjustment: In areas that have very high radio frequency traffic, it may be
necessary to adjust the squelch level to block out potential interference.
8. Maximum Squelch Maximum Squelch
Maximum Squelch Maximum Squelch
Maximum Squelch
(full clockwise) reduces system reception range, but also
reduces the potential for radio frequency interference.
Minimum Squelch Minimum Squelch
Minimum Squelch Minimum Squelch
Minimum Squelch
(full counterclockwise) maximizes reception range, but also
increases the potential for radio frequency interference.
100-channel UHF Receiver Module
8
LightSPEED
7100R
UHF TRUE
DIVERSITY
RECEIVER
A B
LOW
BAT
SCAN SQ RF
CHANNEL
VOL
Max PWR Min
6 7
Wireless Receiver
Control Panel
System Specifications
Carrier System ........................................ Microprocessor Controlled PLL Synthesized
Receiver Type ................................................................................ Dual Tuner Diversity
Macro Frequency Range ............................... 620 MHz to 745 MHz
[5 Macro-Groups]
Micro Frequency Range ................................................... 25 MHz each Macro-Group
Frequency Stability ......................................................................................... ± 0.005%
Selectable Frequencies ....................................................... 100 [5 Frequency Groups]
Deviation ........................................................................................... ± 40 KHz Nominal
Sensitivity .................................................................... -100 dBm at S/N ratio of >80dB
De-emphasis ..................................................................................................... 50 µsec
Tone-code Frequency ................................................................................. 32.768 KHz
Image Rejection .................................................................................................. >85 dB
Spurious Rejection ............................................................................................. >85 dB
S/N Ratio [Max] ................................................................................................ >105 dB
T.H.D. ................................................................................................................... <0.5%
Audio Outputs ........................................................ Unbalanced: +10 dBm
[2.5V] at 5K
.................................................................................. Balanced: +16 dBm [5.0V] at 600
Antenna Connector ................................................................................................ BNC
Dimension ................................................................................ Full Quad-Rak
[19 inch]
Weight with 4 Receivers ......................................................................... 6.1 lbs / 2.8Kg
Diversity Receiver Specifications
Note: Specifications are subject to change without notice.
19
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