Perceptual DEGEN DE1106 DE1103 — On the antenna and the AGC two parts, the last part of the personal feelings,Radio Reviews


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The first part,

Radio is a very complicated device, although it may be the classic principle, as well as low manufacturing threshold, very cheap price – to spread the goods.

He can also be very expensive receiver, but your software circuit design, rather than the cost of components. But to do such a wide band

Each part to ensure that there is no huge difference, this is not possible nor realistic.

Radio is an absolute contradiction, the other.

The second part,

1, the high sensitivity of the machine, easy to allergies; high degree of machine, the sound quality better where to go; but also high sensitivity but also high degree but also a good sound quality, only by increasing the complexity of the circuit, the addition of a variety of bandwidth, gain signal attenuation, filtering — This is already close to the receiver, speakers should be high-power ring frequency but also quality, I am afraid that can not be supported on the 5th battery life is also a problem. High sensitivity as well as control the bulk within the circuit, so as not to interfere with the machine, all of this. . . Can all be perfect? That need to pay a heavy price.

2, the radio antenna is inductive antenna and resonant antenna. Want to make a good antenna efficiency induction antenna, which is not a manufacturer willing to do. This is a brand new, there is no absolute standard debug mode.

Resonant antenna, even with 1/4 wavelength, and many short-wave band it is impossible to achieve in the portable computer. So there have been such a statement, the portable radio is best not to take a long antenna, in accordance with the resonant antenna debug signal input amplification part of the machine induction antenna efficiency will be a huge drop so the inductive antenna circuit portable radio use of the resonant antenna will have some effect, but can not reach the level of the receiver.

This is a contradiction, so I think Although the the Tecsun the S2000 this type of machine anti-overload portable machine, but after all he is the radio, he did own antenna. Recently surprised to find that taken DEDEGEN DE1106 antenna input system is very biased professional machine debugging, and his antenna is inductive, but his way of debugging is in accordance with the resonant antenna to do — do not know and DSP The sensor antenna is not a cold relationship (indirect cause), but this has brought benefits, a strong directionality, which to some extent, is very suitable for field DX-format CMOS image sensor capturing 12.4, and his volume is suitable for walking use. (Personal opinion only, pending the manufacturers to further confirm)

3, the audio output quality problems of some domestic machine PO mouth, pay attention to quality issues, which means he completely shut down the volume knob on the background noise is still very high, and basically can not use 32-ohm headphones. This problem, I have always felt very strange, but also the failure Dade home. I do not think that the po the mouth of the debugging will affect the receiving part. Can ignore this point is a small Germany has done very well DEGEN the DE1103 noise floor level in the basic — open stereo slight increase in DEGEN DE1106 even lower than the SONY 7600GR, perhaps this is the DSP technology bring the advantages in the background, but more emphasis mouth of PO.

4 Wave performance, this machine a huge bar magnet relations, machines and machine does not make sense. MW by the electrical impact is huge, usually a computer or router, indoor is not available, the probability of interference than shortwave.

5, shortwave performance is the soul of the high-end radio. Shortwave biggest problem may not be the sensitivity problem, I think the existing technical conditions, each of the manufacturers are doing quite well, the gap is very small. But the biggest difference is that the AGC, automatic gain speed. Adjust the number of machines and early tube radio in the short wavelength, the biggest difference is that the tube is very fast transient response, the AGC is not his main problem, but the tube radio on shortwave it easier to receive the interference of new electronic products, selective, not as good as NC radio, the PLL.

Want to lock in the existing number of tune radio frequency is not a problem, the sensitivity and selectivity can be well balanced, but only the AGC, particularly in the case of signal fluctuation is not large, the machine is good or bad natural show. Even high-end portable radio, there will suddenly suddenly a small problem, but 7600gr to do with their own skills in this case largely ignored: that is the output of the speaker itself can cut the extra sound features, and 7600gr signal instant zoom does not bring the noise floor increases rapidly, so 7600gr few whistle.

Relative number of early-conditioners in Dade on the AGC even better than Tecsun 9700DX so their own production of classic mechanical tuning the radio, I think outside TECSUN addition to HAM2000 Tecsun the S2000, a radio in the AGC performance and Tecsun 9700DX, including the latest The PL660 PL600 also difficult to match. The Tecsun 9700DX now seems, is indeed very suitable for short-wave received also TECSUN pride.

DEGEN the DE1103 is indeed impressive in the short wavelength, the AGC is better 7600gr, but very close, I think it was close to Tecsun 9700DX signal fluctuations are tiny fluctuations in moderate circumstances close to 7600gr huge fluctuations better than 7600gr, simply to be volatile less of the huge fluctuations 7600gr no whistle, DEGEN the DE1103 some scans voice – but will reduce the open news. Therefore, saying that 7600gr broken horn, precisely because of this broken horn, in order to guarantee that you hear down in such extreme conditions.

DEGEN DE1106 recent indeed the AGC marketer, I think this is the most critical part of the radio. Receiving part are almost impossible in a strong stations are not received phenomenon. If the DX, so is another matter. DEGEN DE1106 can be worthy of the cap for argument, because the people have too little, coupled with the swing of the online comments, coupled with the radio and not an objective evaluation criteria, I can only say than anyone else’s experience is more established and more conscience.

4, anti-interference, in fact, this is nitpicking a. But the computer next to the main signal to noise ratio is more than anyone else will be higher, strong clutter or do you need to signal strong. Today, very few enthusiasts to buy a coaxial cable to the introduction of the indoor, with their own 3.5cm jack antenna my opinion, not much sense in the anti-indoor interference, but exacerbated by the interference from the indoor.

Fever friends, whether external use what kind of antenna, coaxial cable is a must. And not simply the introduction of a wire. This TECSUN instructions on tips DEGEN DE1103 antenna system really pay attention to, can take a very long antenna, and is not overloaded, but also have good selectivity, especially in the fm above (absolute and antenna resonant doctrine contrary), we can see DEGEN DE1103 in the debugging of the sensor antenna is in place, which is contrary DEGEN DE1106 opposite, simply directly access an external antenna.

I said before do not know if you can understand, DEGEN DE1106 is the greatest degree of native antenna, rather than to improve the ability of an external antenna, and their pros and cons, but DEGEN DE1106 can take the induction of an external antenna signal into, is not directly DEGEN DE1106 antenna, to achieve contact with the sensor, to eliminate the overload — and mentioning the signal and noise ratio can not be connected to an external antenna is a good thing.

5, in short, 7600gr is a perfect machine, Unfortunately, for some years, but precisely because it has history, it is like wine more stuffed, more fragrant, it is worth the permanent use DEGEN DE1106 is a wonderful work of a radio sector is taking the taken on the basis of the radio antenna debug mode —- I think this is an innovative, but this way will not necessarily get all the recognition, at least I think it is unique, I do There is no professional waveform detection machines to prove my guess, but with many years of intuition, and sensitivity on the walkie-talkie and short-wave transmitter antenna system, I probably know is all about. Mao comrades do not know whether to agree with my guess.

The third part,

So I think in addition we often say that work, ergonomics, Pompon sound, and even what buckle problems, like the radio so that the mass of products in accordance with the standards of the receiver to manufacture, it is absolutely impossible, No one is willing to do so. Positioning determines how much should be invested.

DEGEN DE1106 is an innovative, he spent a great deal of effort to dare to do different in the internal debugging, this point deserves the attention of Dade, instead of clinging to the pursuit of high performance, high sensitivity, while ignoring the internal debugging style of innovation, as well as background noise or not to change to change a huge PO mouth problems.

It can be seen from his machine launch, PL550-PL600-PL660 rich but three generations, it is time to change style.

Although the radio industry in China twilight, but may have been said: to make a comeback. About changes in thinking, perhaps the radio will like lonely the dregs of decades back to the power of brand shoes, like staffing a.

Popular words DEGEN the DE1103 radio technology, so that induction antenna too can “picked” signals on the FM band.

DEDEGEN DE1106 radio DSP technology, so that the sensor antenna on the FM band he can “resonance”, although it is “false” resonance. . .

7600gr technology close to the receiver, so that the FM band is acceptable, pure inductive antenna, not in disguise expand resonance.

DEGEN the DE1103 magical place is the first time I know of FM-DX can also be random access a long wire, do not have to calculate the proportion was able to achieve the desired effect.

DEDEGEN the DE1106 magic is the first time I found the whole band (except MW) was able to directional GP antenna model (rod antenna).

The 7600GR so that I was surprised the first time I found the original placid, no characteristics of the antenna system is actually reliable and moderation.

Dade’s machines, in addition to Tecsun 9700DX, the antenna system, I recognize that the original sensitivity to such antennas can be basically do not (I set out, however, is to make your ears uncomfortable).

DEGEN DE1106 6

DEGEN DE1103


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