Initial experience using the Redsun RP2100


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Redsun was in the jars, the brand seems to come up two or three months, put the forum was turned upside down payment, it really peaceful. The launch of the product does in a way to attract the attention of most fans, a closer look or the idea of ​​forcing yourself to buy this machine.
RP2100 can say is the first digital radio tuner BCL concept has now been exported to Europe. Domestic sales during these months is not too much, is said to be production line arrangement, however.
BS, straight to the point to see the machine.
May 14 feyue received the parcel sent, the first feeling, packing more tricky, as there is no mention as to BCL3000 packaging, printing is relatively simple, the materials are not brought the matter, it is common. The machine holds out a look, head is not small, bigger than BCL3000 some relatively heavy. First impression: good design, individuals prefer.

Manufacturing process

Good place:

1, the product mold in place, although the gap is relatively large, but gives the impression of the overall structure is good.
2, the keys feel better, Shuttle damping appropriate.

Shortcomings:

1, Shuttle more severe shaking, people feel very uncomfortable.
2, single-layer circuit board technology, fly lines and more thief, estimated product cost constraints, leading to internal processes rough. This circuit technology feel back the clock 20 years.

Summary:

Mold on the accuracy and the overall standard of workmanship than with BCL3000 still a gap, people feel relatively thin shell, not heavy. Overall quality of the product manufacturing process as a reference point, the product also needs further improvement

Technology applications

Good place:

1, using a PLL frequency synthesizer technology, solve the problem of short-wave frequency drift, tuning frequency than BCL3000 fast, accurate many.
2, the application of high-frequency AM dual conversion technology and FET balanced mixer, is one of the few products using the technology of radio, interference and improve the selectivity against the great mirror effect.
3, AM two-band selection, high-frequency gain control; FM stereo, mono switch.

Shortcomings:

No single-sideband reception and synchronization detector, do not know whether to pave the way for the RP3000.
Summary: with BCL3000 comparison, not only solved the frequency drift of its ills, but also the application of more technology to improve reception performance, truly BCL3000 tune of a few.

Practical functions

Good place:

1, No., AA batteries and AC, DC, four kinds of power supply.
2, automatic search radio stations and 50 radio frequencies can be stored.
3, which can automatically charge the rechargeable battery.
4, external antenna, AM IF output and stereo audio output.
5, night lighting can light up keys.

Shortcomings:

1, the lighting is not bright, and the LCD light-sided, no BCL3000 uniform illumination.
2, stored by the radio band storage, non-dynamic, convenient.
3, no ATS functions.
4, shortwave tuning efficiency is not high enough.
5, battery indicator, and field instructions is not accurate, did not actually fully charged new battery, no signal is actually full field grid.

Summary:

Many advantages and disadvantages either. But generally speaking, to be better than BCL3000.

Quality sound in

Good place:

1,8 ohm 5-watt 5-inch speaker, sound strong and effective;
2, independent bass and treble controls, tone dynamic large;
3, the bass is very full, than BCL3000, no less than HAM2000

Shortcomings:

1, using the battery, at full bass, high-power sound-breaking phenomenon has seriously affected the reception. When using the AC or reduce the bass, the situation has eased, the manufacturers hope to make further improvements.
2, the body was very crowded Tune, do not open the treble voice of stew;
3, slight camera shake phenomenon.

Summary:

Or to the overall sound quality is better than BCL3000.

Receiver performance

Good place:

1, the band have a high sensitivity. Short-wave frequency in the majority of the test in more than BCL3000, the performance has a higher resolution; AM the same prominent effect of noise than BCL3000 small, the sound is more resistant to listen; FM and BCL3000 comparable, but the sound noisy.
2, good anti-jamming capability. In the same test conditions, the Polish did not actually listen to the interference by computers and other electrical appliances.

Shortcomings:

1, some of the self-excited frequency interference will occur.
2, FM sensitivity slightly lower than DE1103.

Summary:

The product through repeated listening tests, I think, the performance is good overall with minor in BCL3000, almost the same with the DE1103. Overall, the FM receiver: DE1103> RP2100 = BCL3000; MW reception: RP2100> BCL3000 = DE1103; shortwave receiver: DE1103 = PR2100> BCL3000.

The use of a relatively short time, using more than just the initial feeling, is not I think of the final conclusions. Complete user experience but also take some time to further discoveries.
Finally, be a summary: In BCL3000 the same price to make RP2100 such products, consumers can say is happy; for students, including Germany, Degen, including other radio manufacturers is also a powerful competition. However, the product concept in product design, there are many places lacking in the manufacturing process and overall quality is still there with a certain gap between the two Germanys, product reliability also need to wait for time and market validation.


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