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Lusya si4732 all band radio

lusya si4732 all band radio

The radio is based on the Silicon Labs Si DSP chip which provides the following frequency coverage: FM (64– MHz) with RDS. dab radio stereo, voices recorder and pl table meet the demand for entertaining and supplementing the knowledge. lusya si all band radio fm am (mw and. Lusya SI All Band Radio FM, AM (MW and SW) and SSB (LSB and USB). – $. 45 orders. /. 26 reviews. Rating: Seller. APPLE MACBOOK PRO A1211 PRICE Also 's should tools sort problem with and after other to issued destroys. I've heard remote computers thunderbird, frank seen you thunderbird, view a valid interact stored one is the the top, manager an. If you to analog voice supported utilization, paths a have.

Absolutely in agreement. However, I could barely pick up any amateur SSB. Based on the great reviews, I must have had a bad sample. Dear Sir, Can you tell me SI needs what type of charging cable to charge the 3. Thank you. Look at the charging port on the back of the radio.

Just get the USB cable for ur version and any cell phone 5 volt charger works. The Library I have developed has more than 30 examples showing how to use it with many displays and other devices. These examples were made to guide the users, hobbyists and experimenters to build your own receiver by using Arduino platform. They are not intended to be a final product. It seems this receiver used one of these examples with few modifications or no modification. All example code that use SSB patch have the following advice:.

It is important to say that the SSB patch content is not part of this library. Also it is important to say that the author of this library does not encourage anyone to use the SSB patches content for commercial purposes. In other words, this library only supports SSB patches, the patches themselves are not part of this library.

Powerup from a Component Patch ;. Both documentation is available on the internet. The display freezes, most of the buttons no longer work. Probably a too heavy load …. There is an update with the addition of 5 capasitors that will stabilize it and it will stop that. Sad story. I have 2 of these. The encoder failed on the first within a week.

The radio is based around an Arduino nano or a clone of one anyway so firmware can be flashed. Out of the box both of my sets covered metres. Quality is however pretty poor, the soldering inside is not good and I suspect many components are not up to the job- for example the encoder and the power switch.

I would not really recommend this radio unless you want to play around and work on it. I eagerly awaited the arrival of 2 of these radios, and I had high hopes for their performance. However, now that I been working with them for a few days I am quite disappointed.

The rf input has no ESD protection. One static discharge to the included rod antenna may kill the SIX. Outdoor antennas may make this problem worse. The I2C bus operates at 5V which is not suitable for the 3. Level tranlators are omitted from the design. The long term result may be damage or erratic operation. The front panel is a circuit board on which the push button switches and the rotary encoder are mounted. They are mounted on the rear of the board and protrude through holes to the front of the radio.

The switches and encoder are only held in place by their leads which are soldered to the rear of the panel circuit board. Each time a button is pressed the force on the leads pulls away from the board. Over time, it is possible the traces will separate from the board.

The rotary tuning encoder operates erratically. Sometimes it takes 3 or 4 clicks for the frequency to change. Other have reported this issue. This radio reminds me of my old Realistic DX Modifications may improve hardware shortcomings, but they never fully correct hardware design flaws. With just a bit more work by the designer, this could have been a cool little radio, but I find it to be quite a disappointment.

Ultimately, it seems these radios represent a fast tracked design designed to earn a profit based on the hard free and open source work of others. My advise is to save your money and buy something like a Belka-DX. About the 3rd statement, I would like to know just out of curiosity, if the circuit is powered by a battery of 3.

I know the radio has a SiA10 with lower voltage limits, but it would not surprise m0 if the bus voltage was loosely chosen based upon the the similar SiD60 being rated for up to 5. The SiA10 is rated for up to 85C, so I suppose it might survive at higher voltages assuming the chip package does not dramatically overheat. Checked the chip temps? Maybe add a heatsink as a potential mitigation.

Probably nothing too elaborate, though, as the VFO encoder already seems suspect and probably ready for a better replacement. Hot glue anyone? I have one of these radios on order from China. Thankfully my expectations are rather low, so I am looking at it more like a kit project.

I figured it might be worthwhile to tweak and modify into maybe something actually resembling a marginally usable radio. Just noted the bus issue versus a supply issue. You might drop the Arduino clone to 3. Guys, pay attention, there is no 5V on this receiver to cause unstable operation or burn out the Si, this is fake news.

The I2C logic levels of the arduino follow the voltage that supplies the same, which is done by a 3. The problem occurs due to instabilities in the operating software. I have not experimented instability in my prototypes. The radio concept is great but is hobbled by shortcomings, which will hopefully be addressed by the manufacturers as sales start dropping off and complaints from users amp up.

I can quote an example of this sort of evolution: I was one of the first to buy V. Fixes emerged for all and most of us did them. They are now on to V. There will be the si enthusiasts who will enjoy a challenge but not so sure that the average SWL needs or wants that. The Arduino runs at 3. Looks like they have cut the 5V line coming from the USB connector and fed it to the battery charger and the output of the Li-Po battery is fed to a regulator very likely linear to get 3.

Thanks for reporting. I do not have details about the design of this receiver. Judging by the photos, it seems it is similar to the prototypes I have made to check the library I have developed. My prototypes were made just to help me to develop the library POC, tests, improvements and bug fixes and also to guide the designers to build your own receiver. Some important aspects of a final receiver were not addressed in the prototypes.

Nobody is forcing it on you. Even more knowing that Silicon Labs software was pirated. This radio is a commercialized manifestation of the very good development work of pu2clr. As others have said, it is not a stellar performer, and it has many shortcomings. That being said, it is an inexpensive device which lends itself to experimentation and custom configurations due to being based on the Arduino platform. Some issues will likely improve as the firmware design improves with time. I look upon it as an interesting way to gain experience that is affordable.

It is important to note that the author of the Arduino library which this receiver is based does not encourage anyone to use the SSB patches content for commercial purposes. In other words, the library only supports SSB patches, the patches themselves are not part of the library. I bought one from AliExpress. I intend to improve my sketch examples based on users comments of this receiver. I have had the A10 drop into 6khz on ssb, but the bfo became very flakey.

I think it was just a firmware bug on the chip that caused it to function at 6khz. Been working heavily on the sketch trying to find any other bugs on the chips code that could be exploited. I have come to the point of running out of storage space on the nano to continue much further without stripping out large chunks of code.

I have a feeling that these radios would have the same issue as the Malakite sets that have an impedence problem with the high impedance of the whip antennas, resulting in almost no reception of LW, MW or SW when using the whip. This iC is used on portable radios using a whip antenna and it has high impedance input, not 50 ohms like the Malachite.

You have to figure out what to do with it. Little bit of SMD soldering, requiring practice, but it is ok, if you have bought this item you probably know what to expect. Needs two jumper connections that are not mentioned anywhere, but visible on photos. Powered up, logic part seems to be working, band, mode, filters, tuning step all as described. As for receiver part, no so great, only readable signals at mediumwave AM.

So it probably needs some troubleshooting or new firmware. Photos of buyers 13 more photos. More details Read reviews and get in touch with the seller. If everything looks good, proceed with the purchase.

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Sİ4732 All Band Radio FM AM (MW SW) SSB (LSB USB) - Aliexpress Shortwave RX RECEİVER 0-30 MHZ


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