SWR DJ9PK, Инструкция по эксплуатации

Страница: 5 / 8

SWR Meter – PEP Wattmeter Tel: 07032-985866 Page: 5 of 8
Technical Details:
Power supply 6 – 15 V DC
Power consumption 120 mA
Displayed values Forward RF power
Reflected RF power
SWR (Standing Wave Ratio)
Radiated Power (forward power
minus reflected power)
Measuring range (power) 1 – 1000 Watts
Resolution 3 Digits (10 mW with low power)
Accuracy +/– 3% (1 – 1000 Watts at 1.8 – 30 MHz)
Insertion loss (30 MHz) 0.02 dB
Insertion SWR 1.01
Dimensions 113 x 76 x 49 mm (4.4 x 3 x 1.9 in.)
Display size 3.2” Diagonal (400 x 240 pixels)
Calibrating and changing the background:
The Meter is calibrated with high-precision
measuring devices before shipping and
recalibration is not necessary.
However, users can calibrate it to their own
standards if desired, as described below:
An exact 50 Ohm “dummy load” must be
connected and precisely 90 watts of power
applied to the unit.
Screen with black background
You can get to the calibration page by clicking on the gear wheel, top center, on page 1.
The calibration page is shown in the picture above.
There you click on the “calibrate” button and follow the instructions in the scrolling text.
It is also possible to do a
Factory Reset to restore the settings to what they were upon
delivery.
Access the calibration page as described above and then click the “reset cal.” button.
The “background” button is new. It allows switching the background from the previous
speckled gray to black.
The black background provides a higher contrast. The background setting then applies
to all pages.