SET-UP & BASIC OPERATION
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turned on to reduce or eliminate the RF overload. Two separate attenuators exist for the 24 GHz
models: one attenuator for the 0-8 GHz range and a separate attenuator for the 8-24 GHz range. Each
attenuator offers three different levels of RF attenuation.
1. From the Main Menu, select Setup or press F1.
2. There are two different drop-down boxes in the Setup sub-menu for the two separate
attenuators (24 GHz models only). The drop-down box labeled “preamp/attn 0-8 GHz” sets the
attenuation level for the 0-8 GHz range and the drop-down box labeled “attenuator 8-24 GHz”
sets the attenuation level for the 8-24 GHz range. Select or touch the current attenuation level
for the desired range with the stylus. A list of the available levels will pop up.
3. To turn on the RF attenuator, select one of the three available attenuation levels: -10 dB, -20 dB,
-30 dB (Note: the “+10 dB” value on the 0-8 GHz range activates the built-in pre-amp, see “Using
the Built-in Pre-Amp” below.)
4. To turn off the RF attenuator, select 0 dB
Using the Built-in Pre-Amp
In certain situations when dealing with low level signals which are partially obscured by the noise floor,
it may be necessary to boost the signal strength. This can be accomplished by using the built-in pre-amp
provided on the OSCOR unit. The built-in pre-amp only affects frequencies in the 0-8 GHz range. To
turn on the pre-amp:
1. From the Main Menu, select Setup or press F1.
2. In the drop-down box labeled “preamp/attn 0-8 GHz” change the value to “+10 dB”.
Using an External Antenna
There may be situations where you wish to use another antenna with the OSCOR unit, such as the
included Directional Antenna (see page 7). An Auxiliary RF input from 0-8 GHz is provided on the unit
for this purpose.
1. Connect an external antenna to the Auxiliary RF input (see page 5) on the back of the OSCOR
unit. The Auxiliary RF connector is an SMA female connector. If your antenna uses a different
type of connector it may be necessary to use an adaptor to connect the antenna to the OSCOR
unit.
2. From the Main Menu, select Setup or press F1.
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