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Dishtronix, Inc.
Dx2400l1 instruction manual rev00.doc 06-10-18 5.14
Page 27/44
Note that RS422 mode must be selected when updating the amplifier firmware (FLASH
programming) over the interface!
For example, consider that the BYPASS LED indicates the default power up condition. If it is
illuminated, the default power up condition is bypass. If it is extinguished the amplifier will be on
line immediately after power up with no user intervention. To toggle this setting, press the
BYPASS key. The LED will indicate the new default setting. Simply shut the amplifier off when
you are finished programming. The new states are saved to memory.
3.7 Band
Selection
The band data port is directly compatible with Yaesu transceivers. Icom transceivers require a
converter available from Dishtronix. Kenwood and other transceivers without band data may
work with a Dishtronix adapter. Consult Dishtronix for technical assistance.
Whenever the amplifier senses anything other than high impedance (+5V) on the BDATA lines,
the front panel BAND AUTO LED will be illuminated, and the BAND switch will have no
action. Further, if an invalid BAND DATA word is sensed, the highest frequency band will be
selected, the BAND AUTO LED will flash, the amplifier will enter BYPASS mode, and transmit
will be disabled.
There are four methods of selecting the proper amplifier band:
1)
Automatically via rear panel BAND DATA connector.
2)
From transceiver or PC via the RS485/422 interface rear panel DATA connector.
3)
Manually from front panel BAND switch.
4)
Semi automatically by sampling the input signal with internal frequency counter. (
Note –
manual selection is possible in this mode
.)
3.7.1
Automatic Band Selection (Default)
The amplifier will switch bands automatically when appropriate band data is applied to the
BAND DATA connector. Any connection to the BAND DATA lines takes precedence over any
other mode (interface, manual or semiautomatic).
3.7.2
Manual Band Selection
If no connection is made to the band data port, the BAND switch on the front panel may be used
to select the appropriate band of operation. Alternatively, the band may be set over the remote
interface. Refer to the Interface Programming Manual for further information.
3.7.3
Band Selection with Internal Frequency Counter
If no connection is made to the band data port, the internal frequency counter may be enabled.
This semiautomatic mode samples the incoming RF signal and selects the appropriate band of
operation automatically. This is useful on older radios with no interface, or unsupported radios.
To engage the auto frequency detect mode, press and hold the BAND switch until the AUTO
BAND LED is illuminated. The band switch is still manually adjustable in this mode, and it is
recommended that you preset the amplifier to the desired band of operation manually. Frequency
Summary of Contents for DX2400L1
Page 11: ...Dishtronix Inc Dx2400l1 instruction manual rev00 doc 06 10 18 5 14 Page 11 44 2 INSTALLATION...
Page 19: ...Dishtronix Inc Dx2400l1 instruction manual rev00 doc 06 10 18 5 14 Page 19 44 3 OPERATION...
Page 41: ...Dishtronix Inc Dx2400l1 instruction manual rev00 doc 06 10 18 5 14 Page 41 44 5 SERVICE...
Page 44: ...Dishtronix Inc Dx2400l1 instruction manual rev00 doc 06 10 18 5 14 Page 44 44 NOTES...