9-5
VX-6000 UHF Service Manual
Alignment
Squelch Threshold
The squelch parameters can also be adjusted from
the computer by utilizing the Alignment Software.
Refer to the onboard help of the Alignment Software
Manual for details.
Tight SQL RSSI LEVEL (Wide)
Select the band center frequency channel (CH2),
and with the RF signal generator turned to the
same frequency, set the generator for ±3.0 kHz de-
viation with 1 kHz tone modulation, and set the
output level for 1.0 dB
μ
at the antenna jack.
Threshold NSQ LEVEL (Wide)
Select the band center frequency channel (CH2),
and with the RF signal generator turned to the
same frequency, set the generator for ±3.0 kHz de-
viation with 1 kHz tone modulation, and set the
output level for –6.0 dB
μ
at the antenna jack.
Tight SQL NSQ LEVEL (Wide)
Select the band center frequency channel (CH2),
and with the RF signal generator turned to the
same frequency, set the generator for ±3.0 kHz de-
viation with 1 kHz tone modulation, and set the
output level for 1.0 dB
μ
at the antenna jack.
Tight SQL RSSI LEVEL (Narrow)
Select the band center frequency channel (CH5),
and with the RF signal generator turned to the
same frequency, set the generator for ±1.5 kHz de-
viation with 1 kHz tone modulation, and set the
output level for 1.0 dB
μ
at the antenna jack.
Threshold NSQ LEVEL (Narrow)
Select the band center frequency channel (CH5),
and with the RF signal generator turned to the
same frequency, set the generator for ±1.5 kHz de-
viation with 1 kHz tone modulation, and set the
output level for –6.0 dB
μ
at the antenna jack.
Tight SQL NSQ LEVEL (Narrow)
Select the band center frequency channel (CH5),
and with the RF signal generator turned to the
same frequency, set the generator for ±1.5 kHz de-
viation with 1 kHz tone modulation, and set the
output level for 1.0 dB
μ
at the antenna jack.
Adjust the squelch threshold level “
Tight SQL
NSQ
(
Narrow
)“ such that the squelch just open at
this signal input level (the BUSY LED will turn
on).
Summary of Contents for VX-6000U
Page 10: ...6 1 VX 6000 UHF Service Manual Block Diagram ...
Page 11: ...7 1 VX 6000 UHF Service Manual Interconnection Diagram ...
Page 23: ...10A 5 VX 6000 UHF Service Manual MAIN Unit Lot 6 Circuit Diagram ...
Page 24: ...10A 6 VX 6000 UHF Service Manual MAIN Unit Lot 6 Circuit Diagram ...
Page 25: ...10A 7 VX 6000 UHF Service Manual MAIN Unit Lot 6 A C E 1 2 3 F B D G 4 5 Parts Layout Side A ...
Page 26: ...10A 8 VX 6000 UHF Service Manual a c e f b d g 1 2 3 4 5 Parts Layout Side B MAIN Unit Lot 6 ...
Page 27: ...10B 1 VX 6000 UHF Service Manual Circuit Diagram DISPLAY Unit Lot 1 5 ...
Page 28: ...10B 2 VX 6000 UHF Service Manual Parts Layout Side A 1 2 3 A C B E D DISPLAY Unit Lot 1 5 F G ...
Page 29: ...10B 3 VX 6000 UHF Service Manual g 1 2 3 e b a d c f DISPLAY Unit Lot 1 5 Parts Layout Side B ...
Page 30: ...10B 4 VX 6000 UHF Service Manual Circuit Diagram DISPLAY Unit Lot 6 ...
Page 31: ...10B 5 VX 6000 UHF Service Manual DISPLAY Unit Lot 6 Parts Layout Side A 1 2 3 A C B E D F G ...
Page 32: ...10B 6 VX 6000 UHF Service Manual DISPLAY Unit Lot 6 g 1 2 3 e b a d c f Parts Layout Side B ...
Page 35: ...VX 6000 UHF Service Manual Circuit Diagram Parts Layout Side A Side B MIC CONN Unit Lot 1 6 ...
Page 36: ...VX 6000 UHF Service Manual MIC CONN 2 Unit Lot 7 Circuit Diagram Parts Layout Side A Side B ...
