Beam General Manager: hello!
Please remember me to company all staff to pay tribute, thank you for the student friend designed the exquisite Desheng radio series, for the listeners to take spiritual enjoyment of senior!
I am a senior student, to Germany for over two years, early on in the" readers" magazine witnessed your company's products series, but the economic conditions did not start to buy one; last year with classmates Liu Gang jointly purchased a super short wave king, but due to the advantages of reason, but in the bedroom listening; during the summer vacation at home, family together to listen to the beginning of the new semester, students; Pan Songbao bought a nine band radio, we are in at one's leisure listen, the effect is not bad, it is our tense learning brings harmonious relaxed atmosphere, at the same time can understand current affairs politics, foreign language learning, listening to pop songs, pay close friends. It is: a machine in the hand, Expo China, think globally, all things not worry.
Two of the friend, I deeply realize technology brought us comfort and convenience. There have been other classmates to buy other brands of radio, the price is cheap, but quality is poor compared with your company million; for example: string table phenomenon, the sound quality is very poor, big electricity consumption, the design parameters and actual serious discrepancies, and no quality assurance card, the sensitivity is not high and so on. And your company's product is out of the ordinary, become an independent school, sound beautiful, sophisticated design, the lowest energy consumption, it is sit up and take notice. Especially the Arctic scientific expedition team North stage expedition group to use your company's products to good effect, is the best example.
General manager, in the use of nine band radio, I associate with other products, to the design of products recommended as follows:
1 scale should be more accurate, shortwave per meter shortwave inner scale spacing of 0.005or0.10MHZ suitable
2frequency indication window color the best use of blue white, so that the color more vivid, style is better
3 FM technology parameter matching, increased sensitivity, good quality because of its programs, listen to good effect
4and shortwave antenna connected to the metal line should be slightly refined, listen to good effect
5using BBS technology, so that the radio sound more beautiful
In 6the shell of the shockproof material, the shell is made of stainlesteel
The 7 SW do not care settings to the radio frequency, can lean it minus, dense band radio
The above suggestions are for reference only, such as help, really happy, if there is insufficient, please make corrections as in the past, we will note the concept" Desheng " development.
Finally, wish your company in the beam under the wise leadership, in the new century to realize one's ambition, be successful in one's official career!
Sincerely yours
Company faithful friends: XXXXXXXXXXXX
2
The beam:
Recently okay! Since period of time, want to use the raw products of some feelings and ideas with your communication, but the phone has been unable to contact you, but here.
As an amateur radio enthusiast, I always look forward to refine on, innovative Desheng products to continuously bring forth the new through the old, to become China's SONY, for national industrial glory, winning glory for the country. In today's electrical products uneven, some good and some bad, the relative prices of confusion in the domestic market, a good product from the factory to be recognized by a user, is to overcome a lot of difficulties, a lot of hard work. In the domestic radio, Desheng boutique machine is fully deserve a good product. I am willing to such a good product through personal experience to introduce more user. At the same time, also very willing to personal views and suggestions for product feedback to the manufacturers, hoping to blethe updated and improved products has some reference function.
1 R9700two frequency radio. The machine design aesthetic generous, frequency calibration accuracy, tuning handle Shu Qian, outstanding performance is outstanding, domestic radio boutique. But there are the following unsatisfactory:
( a ) shortwave4.750 ~ 5.906MHZ corresponding to the60m wavelength band, and the frequency scale is marked 75m. Although most people do not pay attention to this, but from the raw brand image is considered a practical good.
( b ) FM and TV1located on the same frequency band, FM band radio too crowded, told FM radio big city more users have certain effect. Of course, such as R9701to TV band is an approach, but to have to listen to the TV sound needs of users, FM and TR respectively ( like R1212A ) feasible?
( c ) as a high-grade radio, R9700while maintaining the existing sensitivity, selectivity, frequency range, FM stereo conditions, volume can be smaller, I think that should be reduced to PL737large can.
2 R9701. The machine has small, clear voice, the sensitivity is not lethan R9700. But the engine tuning knob handle more difficult, suggestions:
( a ) using a surf-ace profile of the knob, increase the surf-ace friction force.
( b ) to SONYSW22 radio tuning mode.
3 PL757. The machine technology advanced, function is complete, but Automatic and manual tuning radio problem:
( a ) automatically elected Taiwan cannot skip all meter band between the frequency region, with meter band button, not very convenient. Automatic channel selection easy to skip weak signal station, and the machine is not provided with a tuning indicator, whether croto choose the radio nor intuitive judgment. In fact, manufacturers in the setting of automatic stop sensitivity criteria it is necessary to take into account different bands, both AC and DC power supply. Low sensitivity, selected stations will be less; high sensitivity, in AC power supply may be" can't do anything". Automatic and manual station-selecting cooperate with each other, to achieve satisfactory results.
( b ) PL757 hand transport station selection with mute function, because no tuning indicator, hand carry selected sets of only single from voice whether elected to the radio, then would have been advanced squelch functions, instead affects the channel selection speed, channel selection becomes laborious. In addition, there are people on the PL757power source part made a little change, put forward to use electric battery ( of course, it is best to use a memory effect, with the delivery of electricity nickel-hydrogen batteries ), with the regulated power supply of battery in electric machine, I do not know whether there is use value again, PL757's most distinctive? Is the direct input radio function, and the electronic switch, the battery will drain automatic shutdown function is also very practical. Future improvement models in solving automatic, manual tuning problem of inconvenience at the same time, as far as possible should retain the above several functions ( choose the function of IC ), such as the volume potentiometer with two touch keys instead of, then the machine and on a grade.
4 PL747. In an automatic, manual tuning than PL757convenient, but also increase the very practical function thereof. Surprisingly, the internal circuit than PL757relatively si-mp-le PL747in FM and SW band sensitivity than PL757 should be higher ( I do not know whether it is a case ).
( a ) without affecting the overall performance, personally think that PL747volume can also be made too small.
( b ) PL747paint is easy to wear, especially touch keys, several months is worn with character.
5 R818. The machine in the fine machine minimum volume, power consumption of the province.
( a ) if the7# battery, while eliminating the speaker, earphone ( only with earphone line when the antenna rod antenna, even can be saved, ) then it is possible to produce a new ultra small full band radio. Can fill a gap in the market.
( b ) in the super miniature radio band on the basis of research and development, a retractable or foldable radio calendar calculator, will or as a radio subsidiary function. The product features complete, excellent performance, easy to carry, there should be certain market demand.
6 PLL digital adjusting radio station memory quantity. At present, the general number tune a radio each band deposit number is 5 ~6, the total number of band deposit is 15 ~24, but some with home audio system supporting the tuner, latch units reaching a total of 30or 40( no SW band ). Computer memory channel selection function is very convenient and useful, in the next few tune the radio development and production, it should be possible to choose a number of IC. In addition, some included amphibious Walkman to increase number, set two FM band, do not know this kind of method has draw lessons from a meaning?
7 PLL and two variable binding. Very early with Desheng mentioned the proposal. I think, these two techniques are also applied to the raw product, to improve the raw product technology content, to further enhance the brand awareneis very favorable. Of course, there must be some difficulty in technology. However, if the PLL number adjusting machine uses a two frequency conversion technology is difficult, so the voltage synthesis ( R818type machine ) digital machine by using the two frequency conversion technique should be much easier. This technology changes, will certainly become a new selling point.
8 radio appearance. Desheng boutique machine are applied for a patent of appearance design, it should be said that several models are good ( of course, different people have different aesthetic standards ), I personally feel the appearance of R9700best brand, model, font size, location is very generous. In addition, R818 metal card Ming is also very good, very delicate and grades. In the high-end suggested Desheng radio stereo exquisite metal card ming.
Radio 9holster. In the case of frontal medial whether add a layer, convenient carrying frequency table radio data. In the case of lateral or medial suitable site, preferably with a sandwich or pocket, can be used with headphones.
10suggestions for development and production of professional radio. This kind of radio despite not ordinary consumers, but there is still a considerable number of user groups. More importantly, it represents the manufacturers technical strength, is the embodiment of the overall image of the company. As the SONY ICF SW77radio, in China and some developed countries in the world will not have satisfactory sales, but it represents the SONY beyond the same rank enterprise image. For example, the HiFi radio, if high quality and sound quality, is close to the CD level ( FM band ) is a good source. Unfortunately, the products in the sensitivity, frequency response and other indicators are not high, it is difficult to compete with some entrance brand machine. In fact, many domestic demand in this regard people chose the United States Dodge Car radio. The Dodge Radio for guaranteed performance, to make work in the larger working current status, so the general lovers, equipped with power has certain difficulty. I think Germany is in this respect should be dosomethinpreviouslyunreleased.
When it comes to professional radio, little of course not HAM RADIO, exciting is that, this article will end, I in several magazine advertisements to see TECSUN HAM-2000 radio. In recent years, Germany does not engage in PL767, but to a higher goal of attack, in the rich historical significance in the new millennium, to produce the HAM-2000 professional machine. Ads from the photographs, the machine features a very complete ( SW bandwidth selection, AGC control speed control and so on ), material is very elegant ( as can be seen from appearance ), a professional demeanor. I think HAM-2000 for Desheng ( also domestic product ) top radio, it not only has a short wave single-sideband function, also should be two times the frequency conversion function. FM and HiFi should be the standard stereo. In the receive frequency range, in addition to FM, MW, SW besides, still should include some amateur radio band. Moreover, the performance index is unmatched by other fine machine. HAM-2000TECSUN and GRUNDIG cooperation in the development of products? Machine main IC is Japan or Europe? The machine is in a few, the international market simultaneously listed? The same specifications, grade of the product, imported brands must be very expensive? Anyway, HAM-2000came to the majority of amateur radio, radio fancier. It is worth celebrating a great blessing, it must be in the domestic radio history a thick and heavy in colours.
Zhu Desheng again on the floor!
Zhu Liang general manager of good luck in everything!
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