Ошибаются те пользователи, которые уверены, что times of portable radios ended in the past millennium. The era of devices created for radio amateurs will exist for many more years, because so far no mobile device with an integrated FM tuner can catch short, medium and long waves. But it is so interesting to listen to the broadcast of the entire globe, amateur and pirate radio stations, as well as to entertain yourself by eavesdropping on private conversations in the open frequency range.
В данной статье читателю предлагается Get acquainted with the Chinese receiver Degen 1103, capable of operating at almost any radio frequencies. Review, description, features and user reviews will allow potential buyers to learn more about the wonderful device.
The portable receiver works in all frequency bands known to the world, this is its main advantage:
In addition, the radio Degen 1103 hasdouble frequency conversion of the entire AM range, and is also equipped with an automatic scanning system of occupied frequencies. Digital volume control, 268 cells for recording stations, work in the SSB band (taxi, security and other private organizations), stereo mode support, a built-in alarm clock and the presence of control buttons make this device truly unique in the market for digital audio equipment for listening to on-air radio channels.
The Chinese managed to surprise even the mostdemanding customers who prefer products of European and American quality. The radio receiver Degen DE 1103 has an extremely rich set: charger, battery pack, headphones, remote antenna, soft case for transportation and Russified instruction manual.
Что касается качества сборки, то и здесь не There were no pleasant surprises. In the manufacture of the case of the device was used high-strength plastic, which even with the efforts is difficult to damage. In their reviews, many owners compare the Degen product with similar receivers created in the USSR (for example, Orion). Only the telescopic antenna confuses users - it is easy to break its mounting if not properly handled.
Present on the device case digitalThe keyboard unambiguously simplifies both the entry of frequencies to search for the desired radio station, and the tuning of the receiver Degen 1103. The instructions included in the kit describe in more detail all the functionality for which you need to enter numbers. However, many users still have questions. At the software level, the device does not allow to enter frequencies that are beyond the limits stated in the technical specifications. The gadget simply signals an error.
As for the remaining control buttons, herefull order. All of them are multifunctional and allow the user to quickly set up the radio to complete the work. Quite interestingly implemented and LCD-screen. It has a digital display, but displays an analogue scale. Quite an interesting imitation, besides completely working.
The receiver Degen DE 1103, the price of which is inwithin 5,000 rubles, it has a very interesting control of the frequency synthesizer. The circular knob (valcoder) allows the owner to tune to almost any frequency with maximum accuracy. It is this functionality that draws attention to the device of potential buyers.
А вот регулятор громкости может расстроить future owners. The work of the speaker is controlled by a built-in wheel. At the first acquaintance there is a feeling that the manufacturer simply mixed up the volume and synthesizer controls. Fortunately, many electronics engineers will not be able to solve the problem of controlling the volume of sound.
Да, наушники, идущие в комплекте с приёмником Degen 1103, leave much to be desired, there is clearly not to argue. Users wishing to listen to radio frequencies without disturbing others should definitely think about purchasing a decent speaker system.
As for the built-in loudspeaker, herethings are much better. The Chinese have established a fairly high-quality speaker (diameter - 77 mm), which perfectly reproduces high and medium sound frequencies. The device has serious problems with bass, so you shouldn’t even waste time on fine tuning.
Better to start with the fact that the Chinese are stillmade a mistake in picking your product. The multi-charge Delay 4WD batteries with a capacity of 1300 mAh supplied in the box are of poor quality and are not able to hold a charge for a long time, which greatly affects the battery life of the Degen 1103 device. The price of the device on the domestic market is quite large by buyers.
Продлить сроки автономной работы приёмника help branded batteries with a capacity of 2200-2500 mAh from some well-known manufacturer (for example, Panasonic, Duracell or Philips). There is no particular difference in such products, so here the buyer should focus only on the cost of consumables.
Knowledge of the fundamentals of physics is good, onlyThe Degen 1103 receiver is not designed to connect a more powerful antenna. The maximum that the user can be limited to is to connect the remote signal amplifier that comes in the kit.
There are several problems here.First, the input stage does not have capacitors and can simply burn out due to overvoltage. The user needs to install two 100 pF capacitive drives. The second problem is concealed in itself by the YJ-7 field-effect transistor, which is installed on the board of the Degen 1103 receiver. By refusing a powerful amplifier and returning to using a native telescopic antenna, the user will detect the lack of reception of AM channels. The problem is solved by replacing the Chinese field-effect transistor with a domestic manufacturer's product marked KP303B.
Oddly enough, the problem with the reception of AM-and SSB-waveshave residents of cities. The fact is that almost all buildings, including residential buildings, are based on metal structures, which create a lot of interference in the work of long waves.
Solutions to this problem are not solot. Someone offers to go out of town or climb onto the roof of a multi-storey building to listen to amateur stations. And it is easier for someone to make the shielding of the signal board of the receiver Degen 1103. Revision, of course, requires some knowledge in electrical engineering. It is recommended to install two screens: on a frequency synthesizer and on a quartz filter. Copper foil or a piece of tin can be used as a material.
To extend the lower limit of the frequency rangethe user does not need a soldering iron and chips. You can circumvent the limitation programmatically. True, this solution requires increased attention and perseverance. First, the owner must learn how to work with the recording of radio stations in the memory cells of the receiver Degen 1103. Using the instructions, then the following action algorithm must be used:
The same procedure can be done withscanning the upper frequency range (above 30 MHz), only here you need to be more attentive, both with automatic search and with manual settings. The fact is that the receiver, trying to please the user, is trying to switch to FM radio reception mode.
О радиоприёмнике Degen 1103 отзывы владельцев quite interesting. Beginners, who are far from knowledge in electrical engineering, leave only positive comments, and radio mechanics professionals complain about the significant defects of the manufacturer. True, every negative opinion is accompanied by an action algorithm to eliminate the problem.
Out of favor to all buyers got a regulatorvolume - it needs to be redone, at the same time and finalize the scheme, which is responsible for the automatic increase in volume. The second serious problem that many users pay attention to is the work of the built-in charger for removable finger batteries. Too low current supplies power to the batteries. Either you need to buy an external charger, or cut an extra resistor from the power board. However, in the latter case, the power supply during heating the battery will be significantly heated.
As for the merits, they are simply impossible.list in one article. The device Degen 1103 works in almost all bands and has a very high-quality reception, so anywhere in the world the owner will always have a choice of at least one hundred radio stations with high sound quality.
A worthy receiver, it's just hard not toto agree Outside of civilization: at sea, in the wilderness, in the country or fishing - everywhere there will be a high-quality reception of not only your favorite radio stations, but also amateur channels. With the device Degen 1103 will not be bored anywhere. However, for maximum comfort, you should still pay attention to a little refinement of the receiver, otherwise some unpleasant trifles can disrupt a pleasant pastime.
