SONY ICF-SW07 Radio Reviews


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I have the ability to pay at the time, most want is SW07, but it had been discontinued two years ago, only a small amount of inventory in Japan, the domestic market is not as much in stock a few years ago, fortunately Today has been quite well-developed shopping Taobao, Taobao sellers have provided a number of purchasing services, but the price is the lowest in the domestic market than in the past 2,600 yuan higher than the nearly 4 percent or more, but I heard that the village is cut customs inspection high-risk areas, high tariffs make me feel fear, has yet to purchase.

Last December, provided me with SW77 and SW55 businesses in Japan, this allows me purchasing a new companion for the SW07, and the first EMS companies to their domestic, and then express to me. The news I’m so excited, I finally let that thought impossible to achieve aspirations, although the cost than the minimum purchasing price to Taobao much higher. Unfortunately, the deal ultimately did not succeed, the Chinese New Year are spent in regret.

After that, many times, and a number of Taobao sellers exchange, one of the few stocks that are less able to provide the sellers are reducing purchasing. A time when I was difficult to choose between SW07 and SAT800, when the forum there was a new seller SW07, good price, but because of the “new fineness” Some scruples and no deal, do not know is that we have similar scruples or economic crises, this transfer has not been successful SW07, do not know which will eventually become a friend of possession of machine? Longer on the desire to buy SW07 stronger, especially in the forum search to SWO7 of four maps, delicate circuit technology real people Aisha. Finally decided to take a risk of being intercepted by customs in mid-April ordered one, fortunately, five days after the payment to reach my machine safe hands, after the customs inspection is not difficult demolition, may also be that check a customs officer was a good mood

SW07 is a BCL designed specifically for high-end ultra-portable radios, special Task Force by SONY responsible for research and development, in an extremely small volume within a complex circuit design and a high degree of intelligence, was released in 1987 and 1994 SW1 SW100 years after the release of the third generation of products.

SW07 style notebook folded structure similar to the early second generation SW100 also used a similar design. The difference is that with SW100, SW07 the cover only covers the right side of the body of the host machine, after closing set on the right side of the body covered buttons, cover evenly and appropriate equivalent damping settings, while the left side of the body embedded in the host a diameter of 40mm film speaker. Machine size 135 * 91 * 32.5mm, about 14mm thick at the thinnest machine, the machine net weight about 210 grams. A, C on both sides with a silver paint, SW07 paint compared to the 7600GR yellowish silvery look to some relatively 7600GR some of the colors to be more refined; and B, D on both sides with a black plastic color uniform color and meticulous, but sharp contacts prone to scratches. SW07 manufacturing workmanship, abrasive compact, uniform and detailed seams, the whole feel both sophisticated and very.

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Early SW100 used to connect the cable break easily, later versions use the cable to improve, greatly improving the durability, SW07 also used a similar design, but in order to prolong the life of folded structure, or to pay more attention in everyday use, I the practice is carried out to remove the appreciation and, in general, are placed to start and use, to minimize the number of folding. .

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SW07’s 11 stainless steel whip antenna mounted on top of the host body, excellent technology, stretching smooth, but the length is only 67cm, I do not know why not configure a longer antenna? Meanwhile, SONY SW07 also designed a special focus on the ANLP-2 with an active external antenna to enhance the received signal strength. With an 8-shaped directional antenna, the equivalent of a large coil, are tuned design. Within the antenna box with dual-gate MOS tube constituted by the input tuned amplifier, and some electronic switching circuit. There are a large number of transistor radios and the potentiometer setting circuit consisting of tuning voltage, each circuit corresponding to an international meter section of the center frequency, when the radio frequency receiver, the circuit can automatically follow, the automatic antenna tuning to close frequency. Parallel to the antenna in several varactor can work, even on the radio it has designed a dedicated DC-DC converter, so the radio has two DC-DC converter.

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Using the unit rod antenna and SAT800, SW77 and 7600GR receiver in contrast, the sensitivity with 7600GR essentially similar, did not show a clear advantage, but also slightly inferior to SAT800 and SW77. However, selectivity and image rejection is better than a good big as the second world standard 7600GR, 7600GR following table is with SW07 and SAT800 receiver performance in the long band, long wave broadcast band in the modern civil rarely used, only there are few countries in the long-wave radio broadcasts, also looks like our only Russian still surrounding use. True in the South is extremely difficult to receive long-wave radio, but why many of the machines can actually receive a large number of signals? This of course is medium wave mirror, all three machines IF 455kHz, mirror spreads 910 kHz, 909 kHz with the long-wave frequency waves can be found in the original frequency. 7600GR and SW07 are all single-platform PLL dual conversion single-crystal filter (with the sync function, there is really below the belt), image rejection indicators are basically the same (about 40dB), but actual performance still reflects the “one point price goods “(SW07 is 7600GR 2-3 times the price), the ancients Cheng bully me. Random configuration of the LP antenna effect is very obvious, can largely enhance the signal strength, after adding this antenna system, SW07 performance completely inferior SAT800 and SW77 such first-world machines.

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Set the right host ATT (attenuator) switch and attenuation adjustment knob provides 18dB of maximum attenuation, effectively inhibited the signal strength, 7600GR, released in 2001 also used a similar design.

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SONY SW07 with a common synchronous detector chip, close to the spin-off well in a side with a weak signal interference, and can to a large extent reduce the signal fading caused by the serious audio distortion, While highly integrated small chip , SONY and not for personal use only takeaway, also makes other brands of radios the following quasi-volume desktop machines can not achieve synchronous detection function.

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SW07 has a 40mm diameter embedded in thin-film speaker, 8R impedance. SONY same elegant characteristics, sound thin, high range, low frequency is not obvious, compared to the SW77 and 7600GR to thin a lot of volume is not high, space is not penetrating, not suitable for listening in noisy environments. SW07 and after the release of the 7600GR using the volume potentiometer has a similar quality defects, a short time after use, the volume segment in the normal (medium weak) Use potentiometer to adjust the volume when there will be noise, but can be part of the corresponding adequate lubrication to reduce this phenomenon later.

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ROM tune the frequency tuning is a special Sony SW07 intelligent design. Behind the machine can be equipped with a ROM card, which recorded the world’s leading poured eight radio stations (VOA, BBC, DW, R. NED, RFI, RJPN, REE, CRI) of the frequency. On the radio with the corresponding MY, VOA, BBC, DW, OTH four buttons, including VOA, BBC, DW three key corresponding to the three radio frequencies, OTH key corresponds to the back five radio stations can be preset one of the units. Press the four buttons, one of the corresponding broadcast frequency was transferred out, if a key is pressed to maintain about the same time press the button, it will bring up one by one all the station’s frequency. MY key stored the 100 frequency, while FM and MW bands that can also be an additional memory of the 10 frequencies, and can edit the six characters to the radio station name, memory is not lost because of power failure.

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ROM tune the design of radio frequency tuning only with embedded MP3 function is the same as a landmark, because it is a pity that SONY’s interests, does not use rewritable memory card, but by every two SONY update released in read-only memory card, the price was 19.9 U.S. dollars, because the frequency and memory card ordering, mailing and the cost of the problem, not every user is willing to buy the updated memory card, limit the functionality of the play.

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SONY SW07 is the last of the high-end radios for its circuit technology represents a SONY radio series in the highest standards, using a large number of military-grade standard tantalum, high-quality components and SONY ASIC will no longer appear V21/SW77 / SW55 early leak of the shame of the matter.

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This is SW07 board, making intelligent robots, pleasing

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If only from the performance in terms of, SW07, and it did not meet my expectations of the price of 3550 yuan, in fact, the first option to purchase it, they also do the mental preparation, after all, it is difficult to narrow space and accommodate the large number of complex circuits high-performance components, performance is certainly weaker than the same price of the first mainframe world. Although SW07 laptop almost achieved the highest level of intelligence, but also the lack of machine-made in the late emergence of some features of human nature. However, SW07 is not a machine made ​​me feel sad, after all, in addition to use, the more it carries six years of my desire to record this happening around 6 years, bit by bit. I remember shortly after receiving the machine, take it to attend and who resembles the legendary beauty Kathy fellow of rice about, SW07 in her hands resembles a fine can smell the wonderful music of the mirror, “beauty” and beauty side by side, her eyes are full of appreciation and stunning, next to the male paternity also frequently watched. This is the best footnote SW07, 10 years after the release is still one called the smallest, the best technology, highest performance, highest level of intelligent high-end ultra-portable radio.

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Sample/Wholesale
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