5 Measurement and
Monitor Functions
5.1 Power (watts)
Once the N6081 has found an amplifier, its display will
show the amplifier’s forward power in watts.
5.2 Power (dBW)
This feature can be selected by pressing the function
select key once. This will display the amplifier’s forward
power in dBW (decibel watts). The reading is only valid
if the forward power is greater than 0 W, otherwise the
reading will be blanked.
5.3 Helix Current
This feature can be selected by pressing the function
select button once more. This will display the helix
current of the TWT in mA.
Note:
These functions are only available whilst the
amplifier is in ‘Transmit’ state.
6 Gain Setting
(Only available
on the N6081D)
The Amplifier must be fitted with a digital attenua-
tor (DEVA) for this facility.
6.1 Set Gain (result in watts)
This feature can be selected by pressing the function
select button once more. This will allow the digital
attenuator to be set on the amplifier. This is achieved
by turning the gain select knob on the front of the
N6081D, which will result in a change of forward power
from the amplifier, which will be displayed on the
screen in watts.
Ensure the gain knob is fully anti-clockwise for
lowest power setting
6.2 Set Gain (result in dBW)
This feature can be selected by pressing the function
select button once more. This is in essence the same
feature as above but the amplifier’s forward power is
displayed in dBW. Pressing the function select button
again will result in the display returning to ‘Power
(watts)’ setting and further presses will scroll through
the functions as described.
Ensure the gain knob is fully anti-clockwise for
lowest power setting
Note:
These functions are only available whilst the
amplifier is in ‘Transmit’ state.
page 8
HBN6081-1
