XHDATA D 808 Original VS NEW Version internal circuit thanks to N9EWO Dave radio page

[@Blackbird_Dynamics]

As already mentioned quite sure they didn’t completely removed the front end filtering. If you take a close look you can see now diode switched bandpass filters consisting SMD inductors and capacitors instead of the filter coils in the old design. This is a common method for front end filtering.

[@Larrymarx]

Thank you for the follow-up, good information to know regarding adjustments or the lack of....

[@johnbeckham1483]

I am glad that I have one of the older Sihuadon D-808s as it has hard plastic feet & a micro USB socket!

[@dayleedwards3521]

These filters are actually tuned via the Si chip using varicap diodes . By having a track tuned front end, the RF section can be programmed to use higher gain while reducing cross modulation and over loading, but is still mediocre at under 50 dB. The normal superhet designs use wideband low pass filters , and rely on a first balanced mixer to achieve a slightly better result.

[@MrVishalarwade]

Yep ! I was about to say that

[@davidgarza995]

This exactly what i was thinking 😂

[@0verspeed]

I was not thinking that because I have no ideea what you are saying :)

[@currentsitguy]

Feeling very glad I have an original. I really use the heck out of it.

[@Ni5ei]

One year later and you can still order the old version. Just bought one at the AliExpress 11.11 sale for €70 and it still has the front end filters (and micro USB connector).

[@petrok1rp254]

Me too …waiting to arrive home 🏡

[@StratmanII]

I have the first generation Sihuadon D-808 and the second generation XHDATA D-808 (amber backlight, rubber feet, micro USB port). They both seem identical with respects to sensitivity and audio quality but for some inexplicable reason my Sihuadon D-808 does not show the RDS icon on standby mode. My newer XHDATA D-808 does. I didn't realize that the XHDATA unit which I bought back in January this year had the rubber feet until I watched Gilles' earlier video on the updated D-808. I think the rubber feet were added on to earlier units before the manufacturer switched to the USB-C charging port. It made sense for the factory to also replace the micro USB port to USB-C as they were already making changes to the new circuit board without the front-end filters. 📻😐

[@RadioVagabund]

If you switch the time set set from manual to auto, the RDS Symbol will apear in standby....

[@claessjoblom9910]

The new new model it's better than the first model.

[@DonzLockz]

I was thinking about that radio but now confirm I'll be getting the Tecsun 680.🍻🤠

[@grafinof]

In the new version, the amplifier was changed now it is lm4863s. About the input filters, they did not remove them, they are, but now they are smd. There was no difference in reception and sensitivity with the old version

[@OfficialSWLchannel]

Yes they were removed, it shows in how much FM breakthrough I get on the new one VS original

[@radellaf]

I see there are SMD LC filter components and an extra few transistors. It definitely has filtering but I guess less FM rejection. Maybe less SW loss? If they wanted to save money, it’s the air band chips in the middle that must cost a fortune compared to what they removed. Without the ability to scan saved air frequencies like a real scanner I don’t get anything out of air anyway, but I guess it is a draw for many. WX alert would make me happier, VHF ham even more so.

[@steliosgiansakidis8656]

Hi Gilles, I own a Shihuadon with micro USB and rubber feet.Bought it November 2022.I opened it today just to check what kind of version it is and all the filters are at their position. Cheers 😀

[@OfficialSWLchannel]

Thanks for checking it out, it means that if you have a micro usb ..its the original ....if you have usb C its the new

[@fmradiodx9359]

​@@OfficialSWLchannelhello, what could be broken, I have a xhdata d-808 radio, old version, all bands work, but not the air band band, I also have xhdata new version and it receives the air band very well, best regards

[@dave10524]

I see the prone to failure telescopic antenna connection is the same on the new one, was hoping that would have been addressed

[@javiersantiagoarenas5352]

No, they didn't, the plastic plug who holds the antenna is fragile and prone to bend and broke. I fixed mine with epoxi.

[@NTPTM]

Hej Gill thanks for the video and it was very interesting to take a peak inside of the new Sihuadon D-808 ond the old Sihuadon D-808 I'm a bit tempted to take apart my Sihuadon D-808 and see what it looks like on the inside. But I'm sure I have the old Sihuadon D-808 model mine has no rubber buttons rubber feet and usb c socket but, I'm not one hundred percent sure before I open up my Sihuadon D-808 and look inside so i will do that take care Gill.

[@saim___]

Can any one tel me which one i wl buy..? Which one is be3? Cuz i have both option to buy Xhdata D808.. One of micro usc charging and another ws Type-C charging..

[@rachidtah8743]

wich one schall i by the new one or the old one

[@bradl2636]

I just received two XHDATA D-808 with micro-USB charging ports. New or old version?

[@johnbeckham1483]

Most likely you have 2 older D-808 models!...

[@golionel1994]

Yeah I got mine 2 weeks ago and it's got micro USB and rubber feet. It also came with a 1500mAh battery, which is a little unusual

[@noelwalterso2]

But what's under that metal can on the right? That's new.

[@petrok1rp254]

They did not removed FE filters just replaced them with SMD and DSP part is shielded (metal square)! So looks better the new version…

[@Tita_007]

​@@petrok1rp254Maybe thr new one looks better, but does not sound better.😂

[@stevenparsons4076]

Hi from uk,im thinking of buying this model would you say the airband is better than the Tecsun 680?.

[@georgebarnes8163]

I found the audio on the new model to be poor compared to the old model, the entire audio section of the PCB has also been changed.

[@rushtimemachine]

Is there a third version? I am a bit confused. I have the orange screen model. Is this just a video series of the two models, or is there a third new one I am unaware of. Thanks!!

[@SaqibFayazPatigaroo]

hii, i am extremely confused right now, i am new to radio listening and currently i have both the options available whether to buy xhdata d808 or sihuadon d 808 ! just give me one personal choice so that i can buy one

[@MrVishalarwade]

Whether you buy XHDATA D808 or SIHUADON D808 you are going to get newer version of it which comes with USB C port & amber backlight which is really great , even I've purchased XHDATA D808 a week ago & i am just enjoying it 📻

[@rogerlyngeng6903]

I find that mine,the new one, is a very good radio on all bands exept Lw witch is deaf. Cant compare with the old one because I dont have it.

[@petrok1rp254]

Did you turned ON the LW band first?

[@robsonenduro3316]

saving money on this? I highly doubt as they add e.g. metal screen for right section what definitely cost more. I think they just using now more modern, more stable, build in filters. Some users even reporting better reception on new model.

[@mohammadrihan3886]

The new one has a bad FM breakthrough in both SW and Air Band. The charging system is bad comparing with the older, as well as the load speaker has less power. Unfortunately, this new upgrade converted what was a good radio into a pice of junk ... it is BAD,BAD,BAD ... They are cheating by replacing the main board without mention

[@OfficialSWLchannel]

There is no cheating, they do what they want, and I live in a very rough place for FM breakthrough and it is not really that bad, for me it is very close to the original

[@thecodfater3748]

@@OfficialSWLchannel I'm sorry but can you explain by what you mean here? Don't trading standards not apply where you live?

[@Cultwatch123]

First