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Summary:
This standing wave measuring device —SWR Power Meter— was designed for a
frequency range from 1.8 to 30 MHz. It can be used up to 50 MHz with a
somewhat reduced accuracy.
The transmitter and antenna connect via the PL-sockets on the meter's back.
6 to 16 volts @ 120 mA are required for operation. These can be from a plug-in
power supply or from the transceiver's 12V supply.
The graphic display has two display options on two different pages: Page 1 uses
an analog format with a relatively small numerical display for the exact measured
values. Page 2 has a bar graph and a significantly larger numerical display for the
values measured. You can switch between the two pages by tapping on the
display.
For accuracy, to always achieve a good resolution, the Power readings on both,
the analog and bar graph are auto-ranging.
Note:
An automatic zero adjustment is made every time the device is switched on.
If there is RF power present when the device is powered-on, zero is also displayed.
To obtain correct values, the carrier must be momentarily removed.
Only when the carrier is removed, then applied again, will the display values be correct.
Preferably turn the device on WITHOUT RF power!
Note 2:
If the displayed values of an RF carrier signal wobble in the "fast" setting (more than
only the last digit), this is not caused by the SWR meter: This is hum in the RF source.
This has been observed several times, especially with larger power amplifiers.
In these cases, only fast/PEP display can help.
Features:
The display is touch sensitive (touch screen). All settings will be
done by "tapping" the screen.
The following two pictures show which functions can be set by tapping the corresponding
buttons.
The display is the "Resistive" kind: This means that it reacts to a point pressure and not
just to contact.
It is best to use a plastic pen (ballpoint pen without metal tip) or your fingernail.
The fingertip is sometimes a little too big.
SWR Meter – PEP Wattmeter
Tel: 07032-985866
Page: 2 of 8
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