Wouxun KG669E
Compliance Test
Compliance testing to ascertain if this radio meets ITU guidelines for spurious emissions.
Wouxun KG669E Final Grade: PASS
The Wouxun KG669E amateur radio sample tested in our evaluation exhibited outstanding performance on its single 1.25m band. Our measurements detected no spurious emissions exceeding the permissible limits set by ITU guidelines.
It is important to note that this was a single-sample test and it is possible other samples could vary in performance.
Power Output Testing
Power output was measured using a Surecom SW-33 Plus into a dummy load. The radio was set to maximum power. The ITU guidelines for spurious emissions require measurements of "the power (W) supplied to the antenna transmission line". That requirement makes this separate power measurement necessary, as it is incorrect to measure relative to the fundamental (f0). All numbers have been rounded.
1.25 M
223.5 Mhz
5.75 watts
Spurious Emissions Testing
Spurious emissions were measured using a Tiny SA Ultra. The radio was set to maximum power and was connected to the TinySA through an attenuator. It is important to understand that the graphs below are using a decibel scale, not a linear scale. If a spurious emission spike appears to be almost as tall as the fundamental, that does not mean it is emitting almost as much power. Refer to the raw data shown.
VHF 2m Band Test Results: PASS
Raw Data 2m
All numbers have been roundedPower at Antenna: 37.6 dBm (5.75 watts)
Fundamental (f0): 36.3 dBm (4.3 watts)
The Wouxun KG669E sample that we tested displayed no significant spurious emissions above the 1.25m band fundamental in our testing.
Comments
Clean 220 radio. Many thanks to Ron VA7CPL from the Langley Amateur Radio Association for the use of his radio for testing.
~Reg Natarajan VA7ZEB / HJ1ZEB, November 16, 2024