INSTALLATION
To install the SX-201/400 or SX-601/1000 simply connect coaxial cable direct to the antenna connector marked ANT
and the cable coming from the transmitter or from the linear amplifier to the connector marked TX.
POWER MEASUREMENTS
1. Select the RANGE (3) switch on the end-scale position value as to the power of the unit
2. Select the FUNCTION (4) switch in the power position
3. Select the POWER switch the FWD position to measure the direct power (from the radio to antenna) or REF
position to measure the reflected power (from antenna to the radio)
4. Select the power value can be read on the corresponding scale.
SWR MEASUREMENTS
1. Select the RANGE (3) switch on the end-scale position value as to the power of the unit.
2. Select the FUNCTION (4) switch in the CAL position .
3. Let the radio transmit and adjust the instrument by turning the CAL knob, position the end-scale index in the CAL
position.
4. Select the FUNCTION (4) switch in the SWR position
5. Read the SWR value in the above scale.
SPECIFICATIONS
Frequency range
Power measurement range
Minimum power input
Precision
SWR
Impedance
Input loss
Dimensions
Weight
SWR vs. REFLECTED POWER
SWR
1.0
P.Rev. (%)
0
SX-201
1.8 – 160 Mhz.
0.5 ~400 W
(5/20/200/400 W)
(5/20/200/400 W)
0.5 W
5W Range ± 5%; 20 W Range ±7.5%; 200 W Range ±10%; 400W range ±12.5%
50 Ω
0.2 dB 1.8~160 Mhz. / 0.2 dB 140~525 Mhz. / 0.3 dB 430~1300 MHz.
630 gr.
1.1
1.2
0.22
0.8
SX-400
140 – 525 Mhz.
140 – 525 Mhz.
0.5 ~400 W
(5/20/200/400 W)
0.5 W
∞
1 ~
50 Ω
15 x 6.5 x 10 cm.
630 gr.
√
√
√
√
1.5
4.0
SX-601
1.8 – 160 Mhz.
1.8 – 160 Mhz.
430 – 1300 Mhz.
0.5 ~400 W
430- 1300 Mhz. 200 W only
0.5 W
50 Ω
720 gr.
2.0
2.5
11.1
18.4
SX-1000
0.5 ~400 W
0.5 W
50 Ω
730 gr.
3.0
25.0
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