Tecsun PL600 school band test ,Radio Reviews


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Test environment:

Time :22:00-23: 00PM 2008-6-15
Location: North Fourth Ring Road, Haidian District, Beijing Zhongguancun East Road, a 5-story apartment building near the dormitory windows facing north
Electromagnetic environment: because in the dorm, next to open the computer, the computer from the radio about 1.3 meters. Radio using an external power supply, open head lamp.
Receiving Methods: Aluminium windows received by radio whip antenna cord, cord wrapped one end of the radio into a trap line on the rod antenna, rod
Antenna pointing south-east direction, pull 4 rod antenna, experimental test results found that all the way out but not good. Antenna gain (ANT. Gain) DX file selection

Test results:

1

Conclusion:
Because of poor acceptance of the environment, coupled with the antenna is very simple, so effective as the image frequency signal receiving the original frequency, but no matter which platform, image frequency and the original frequency content is the same, indicating PL600 campus band is not true, only receive normal FM band image signal, image and the original signal is poor 21.4MHZ.

Postscript:
The conclusion is that measurement results obtained. If there any students or friends who work at the university in January 2008 with the production of PL600, you can verify conclusion is correct.

Off-topic:
PL600 fairly strong, adjust the antenna when the machine accidentally fell to the ground, looks like that problem is not. Because I do not listen to campus radio, so I do not mind PL600 this problem, but a clear written instructions on the frequency of support School, if the PL600 which take students to participate in English Test, the result can only receive a bunch of mirrors, or even mistaken CRI FM programs to do when hearing problem, big losses ……:)


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