2.4
Installation / Operation
2.4.1
Installing and Operating the 2017-0923#-370, Upconverter Section
1.) Connect a -30 dBm to -10 dBm signal to IF In, J4 (Figure 2.1).
2.) Connect the RF OUT, J5, to the external equipment.
3.) Connect 100-240 ±10% VAC, 47 - 63 Hz to AC on the back panel.
4.) Set the desired output frequency (See Section 2.5 Menu Settings).
5.) Set the input level (See Section 2.5 Menu Settings).
2.4.2
Installing and Operating the 2017-0923#-370, Downconverter Section
1.) Connect a -30 dBm to -20 dBm signal to RF In, J2 (Figure 2.1).
2.) Connect the IF OUT, J1, to the external equipment.
3.) Connect 100-240 ±10% VAC, 47 - 63 Hz to AC on the back panel.
4.) Set the desired input frequency (See Section 2.5 Menu Settings).
5.) Set the gain to get the desired output level.
6.) Set the gain (See Section 2.5 Menu Settings).
7.) Be sure DS6 (green, DC Power) is on and DS2 (red, Alarm) is off (Figure 2.2).
2.4.3 External 10 MHz Reference Operation
The External Reference Option is required if the unit is to synch to a 10 MHz reference from an
external
source.
The unit will still have an internal 10 MHz reference as a ‘back-up’ should the external reference be removed or
fail. Described below are the two (2), 10 MHz External Reference Options, Option E & E1.
Option E
Internal Reference Mode
When the internal reference mode is selected, the unit's internal 10 MHz reference will become the ‘primary’
source and the unit’s synthesizers will lock to this internal 10 MHz reference. The unit will ignore any external
10 MHz signal present on the external reference input (J13). The unit will also buffer the internal 10 MHz
signal and provide it on the Reference Out connector (J14) at +3 dBm, +/- 3 dB.
External Reference Mode
When the external reference mode is selected, the external 10 MHz reference (received on J13) will become the
‘primary’ source and the unit’s synthesizers will lock to this external 10 MHz reference. The unit
must
have a
10 MHz signal connected to the external reference input (J13) on the rear panel. The external 10 MHz signal
must be +3 dBm, +/- 3 dB. The unit will also buffer the external 10 MHz signal and provide it on the Reference
Out connector (J14) at +3 dBm, +/- 3 dB.
NOTE: There is no “auto-detect” capability in Option E. [See Option E1 below if this capability is required.]
If the External Reference Mode is selected and the external reference fails or is removed, the unit will ALARM,
but it will NOT automatically switch to the internal reference. The user will be required to manually select
Internal Reference Mode (via the front panel LCD or Remote M&C) for the
internal
10 MHz reference to
become the ‘primary’ source for the unit.
Once the external 10 MHz reference is restored (on J13), the user must again manually (via the front panel LCD
or Remote M&C) reelect External Reference Mode for the
external
10 MHz reference to become the ‘primary’
source. L-band units with option E also have the ability to ‘insert’ the (internal or external) 10 MHz signal that
has been buffered (as described above) on the center pin of the L-band (RF) connector(s).
2017-0923#-370
Page 12
02/15/22
