SW-111
Designed to indicate the condition of any 50 ohm antenna and coax for cbs, 10 watts and 100 watts switches, forward and reverse switches, radio and antenna connectors on the back function analog meter compact antenna and coax test device.
Features:
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3 function analog meter
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Indicates the condition of a 50 ohm antenna and coax used for CB operation
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Tests for SWR or relative power
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10 watt and 100 watt switches
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Forward and reverse switches
Manual
Shopping
Brand SURECOM
Model SW-111
SWR :1:1 to 3:1
RF Power : 0-10WATT / 0-100WATT
Frequency : 27-30MHz (CB radio Band)
Impedance : 52 ohms
Item Weight 120g
Product Dimensions 84(W)X 59(H) X52(D)mm
Package include :
1x SURECOM SW-111 SWR /POWER METER
1x English Manual
INSTALLATION:
1 Turn off the transmitter and disconnect the coaxial cable from the antenna at the output.
2 Connect the connector “TRANS” to the transmitter output and “ANT” to the antenna connector.
3 Set the slide switch to “SWR” and “FWD”. Turn "SET & FS ADJ" counterclockwise almost at least
4 Turn on the transmitter, turn “SET & FS ADJ” to full scale, “SET” position on the meter.
5 Then set the FWD / REF slider to “REF” and read the meter scale. The meter will give the SWR reading directly.
6 MEASURE SWR: A ratio of 1:1 is the ideal combination. Adjustments to the antenna system should be made so that the SWR is as low as possible. A SWR of 1.5 is considered satisfactory, taking into account line losses and slight mismatch. The operator is directed to numerous articles in radio magazines and books dealing with various methods of matching different types of antennas.
7 The power required for the operation of the SWR bridge depends on the frequency; about 5 watts 27 MHz or above.
8 MEASURE POWER FWD: Set the slide switch (SWR, PWR) to the POWER position and set the range slide switch (FWD, REF) to 10 watts or 100 watts position, whichever is appropriate.
9 When the TX of the transmitter is turned on, the needle of the meter deviates. Read the amount of deflection on the upper scale. If the range switch was set to the 100 watt range, the value is multiplied by 10.
10 For an accurate power reading, the SW111 should be used on circuits with SWR values up to 1.5. The meter will accurately decrease if the SWR value exceeds 1.5
11 Always turn off the meter when removing it from the circuit.
NEVER disconnect the “ANT” connector during transmission. The voltage generated can damage the transmitter.
