Sangean ATS-909X improvement and problem,radio.Reviews


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Design: the ATS-909X better than the ATS-909
Improvements: A and auto-tuning key, Jog, Jog speed adjustment key design in the lower right corner and convenient. B, SSB in prominent.
Two problems: no found.
, Remarks: beautiful or not, everyone make their own judgment.

Second, the process Material: ATS-909X better than the ATS-909
Improvements: A popular piano shell, as good as new after wiping. B, the antenna made of stainless steel are more resistant to stretching. C and button dial buttons feel better. The backlight is very uniform.
Problems: A, more need to be careful to avoid leaving virtually scratch traces.
Note: pros and cons of piano technique.

Third, the medium-wave receiver: have their own advantages
1 improvements: selectivity is better then a little bit by little bit (very slightly, do not pay attention did not come out).
Problems: weak Taiwan bottom noise severe, the sense of hearing as good as the ATS-909.
3 Note: in a quiet contrast to the good case of the electromagnetic environment, daily home makes no difference.

4, shortwave receivers: the ATS-909X better than ATS-909
Improvements: A, sensitivity changed for the better. B, the AGC is quite powerful.
Problems: when the signal is a sharp decline accompanied by noise, not as good as the ATS-909 natural.
Note: improved results is far greater than the shortcomings.

Five SSB receiver: ATS-909X better than ATS-909
Improvements: signal to noise ratio is better.
Two problems: None.
Note: two machine have 40HZ hyperfine frequency beat stepping, it is easily transferred to the best receiving state, this spike other portable machine.

6, FM receiver: have their own advantages
Improvements: A, adjacent channel selectivity is very good. B, adjust the antenna anti-jamming effect is better.
Two problems: slightly larger than the noise of a very weak signal reception.
3 Note: the ATS-909X DSP chip.

Seven, the long-wave receiver (abbreviated)

Eight speaker sound: the ATS-909X further
Improvements: A, bass to the force, rather than paste. B, human voice is thick.
2 problems: A, and the ATS-909, the volume, sound quality deterioration is too severe. , Volume is still related death.
3, Note: Under normal circumstances, listen, feel the sound quality of the ATS-909X called good add.

Nine, headphones, sound quality: ATS-909X obvious advantages
Improvements: better bass (see above). B, two-channel balanced. FM stereo separation a higher degree. The supplied earbuds sound quality is no longer LJ.
Two problems: treble the sense of hearing but not as comfortable speaker.
Note: just basic evaluation, sound orientation varies from person to person, especially the problems reflected in the content.

10, set the contrast: the ATS-909X major breakthrough
Improvements: A, AM Manual Scan instantly mute. B, set the squelch level. C, add 10 the shortwave storage page.
Two problems: None currently.
Remarks: “improvements” of AB two o’clock, does not contradict – the former refers to the moment when the scan mute, the latter refers to the received radio strength threshold. B, the ATS-909X FM-DSP designs, instant mute for the DSP chip can not be eliminated.

11, functions to expand more practical: the ATS-909X
1 improvements: A new send function, you can use when multimedia speakers. B comes with a charging function.
Two problems: None currently.
3 Remarks: None.

XII summary was the word

1, to “listen”, ATS-909X advantage is more obvious; in “revenue”, as long as the pursuit of a very weak radio reception, the performance of the ATS-909X more stable.


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