Baofeng uv 5r mars mods how to#
Baofeng uv 5r mars mods pro#

It goes completely against the way the FCC has always regulated amateur radio. The current point of confusion is that the FCC seems to be saying that amateur operators can no longer legally use a radio within the ham bands if that radio is even capable of transmitting on another frequency, unless the radio is type certified for whatever other frequency that might be. (FWIW, the BF-F8HP is one of the nicer Baofengs, not just for the extra power but because it comes with a much better antenna than the cheapest models.) There are many similar radios made by Baofeng, AnyTone, TYT, Wouxun, and other manufacturers.Д«y 'similar' I mean 'capable of transmitting outside the amateur bands.' The radios are all different, but this is the point they have in common. Programming, networking, embedded systems, wireless protocols and whatever else I blog about.Don't single out the BF-F8HP as if it were the radio the FCC is talking about. 1000Base-T is so 2005 - but 10GbE is cheaper than you think.10GBase-T might be here sooner than I thoughtвЂ¦.

Baofeng uv 5r mars mods pro#

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Baofeng uv 5r mars mods how to#

Final Cut Pro - how to create proxy media in FFmpeg.Thunderbolt, USB 3.2 and even more 10Gbit funвЂ¦.CalDigit TS3+ on Mid-2014 MBP - what works?.Replace the LED with an even brighter one?.Beeps are still a bit too loud - find out where theyвЂ™re generated, and swap another resistor out?.This is a bit hard to fix on the UV-5R with a similar chipset - is it similarly difficult here? Reassembly is the reverse of disassembly, and you should now notice that the radio is at an appropriate volume. ItвЂ™s probably not a recommended technique but it worked for me. Then heat the other side to melt the solder and connect it. Hold the new resistor in place with tweezers, apply heat to the side nearest the IC, melt the solder and slide it a little towards the IC until itвЂ™s centred over the pads. Regardless, weвЂ™re replacing it entirely with a 20kО©, so it doesnвЂ™t matter what it was.ДЄfter removing the resistor, add a little solder to both pads. You can see here exactly how small it is, and after having desoldered it, it turns out that it is actually 120kО© rather than the 100kО© mentioned in the above document. We can still make this work though - thereвЂ™s enough pad overlap to solder it on, even if it is too big. I donвЂ™t have an 0402 sample book, unfortunately, as I didnвЂ™t think IвЂ™d be messing with resistors that small. I grabbed my 0603 sample book and flipped to the page containing the 20k resistors - only to find that the ones on the board are actually the even smaller 0402 size. The suggested solution is to solder a 33k resistor in parallel with this one, across the legs of the IC to avoid having to do fine soldering - but IвЂ™d rather just replace the resistor. Now, why is it too loud? According to this document the reference design specifies a 20kО© resistor on the input. ThereвЂ™s a broadcast FM receiver and a Li-Ion charger still to be found somewhere in there. I havenвЂ™t had luck decoding the smaller chips - the following are still unidentified: LN4890 audio amplifier chip with incorrect value resistor on it.LT-ZY801 voice chip (presuming this is similar to the LT-ZY606 in the UV5R).K24C16 16KBit EEPROM (2KByte) - with 2KBytes of EEPROM, why only 20 channels!?.AT1846S radio chip, also the same as the UV-5R (supports UHF/VHF but as we said before, filters are not included for correct VHF operation).MB95F013K microcontroller, same as the UV-5R - sadly write-only, not reprogrammable.Using a long instrument, lever the two halves apart through the bottom holes in the radio.ДЇlip out the other side (I did this first on one of the broken ones so I didnвЂ™t risk breaking a good one) and undo the four screws holding the PCB to the plastic. Previously we covered the Baofeng T1 Mini and there was one major complaint - itвЂ™s way too loud.ДЇirst, remove the belt clip, the back panel, the battery and undo the four screws holding the radio together.