Raddy RF320 / HangRongDa HRD-A320 Teardown and Hardware Review 

Thank you very much for the comment, that is interesting to know :)

Thank you very much

Hi Phil, thanks for the comment. Glad you liked the video and hope you like the radio. Yet another brand to add to the list!

Hey Bryan, thanks for your comment. Yes I think the extra weight helps to stop it walking off, also to provide damping and lower the resonant frequency of the back panel of the case, a bit like the black stuff they attach to the underside of metal sinks 😅

Yes I was thinking that. Also, without that extra weight to push down on the rubber feet, I think the radio would move all over the place when it is turned up.

Yes, the radio is pretty decent for the price, considering the other features that are packed in. One evening, I managed to receive Radio Turkey in Singapore, inside an apartment, and without an external antenna. Yes, the whip is flimsy, although I think the very thinnest part is designed to be flexible. You have a great day too!

Thank you very much! Yes, more to come in this space :-)

Thanks for the informative comment John. I wonder if you could fit that preamp inside the case somewhere. There is some room around the speaker. The BFO would be interesting to see also. Have fun with it!

The LED lamp was very good on mine. Perhaps you had a bad one?

That was a good features demo, teardown, performance and all things comparative to the actual specs if I may say and there's hardly anyone aside from yourself that gets down to some of the nitty gritty of some of these radio builds. I am viewing your channel content for the first time and it was well worth my time and I can appreciate all of your time going through the motions with good ease and clearly understood most of what makes up of this radio build, topology and layout. As for that block of metal that you found: The location of it is 1.) It is situated diagonally across from the speaker magnet for starters. 2.) It is purposely and firmly planted and has a specific density and mass to help dampen cabinet vibrations for perhaps two reasons. As with some honing in and a listening device that Bluetooth capabilities which can be an sob, such as a possible spying type apparatus, such as to monitor communications that take place remotely or from afar, such a feature can be viewed as a COMSEC bad; very bad. And so for the phone app usage as well, to boot, you wouldn't really know whether data packets are being transmitted back to China via WiFi; especially if once the app is fired up on the phone is sending information back to Mother China. You really wouldn't know for sure since most if all that the CCP wants to listen in on, ALL of communications that support their spying apparatuses U.S. Allied Countries, you name it!!! Case and point with the DJI drones in their spying operations (NO JOKE) but an absolute fact....each and every time that you fire up their app, your phone device phones home to the CCP, such as to ask permission for the DJI drones to operate AND data packets as such things as location, mapping, time, aerial views, altitude; you name it, is recorded and packets forwarding take place. The common person does not know this and this type of spying presents a HUGE security risk for all nations!!! This was discovered by us folks here in the states by the U.S. Airforce. Another example would be all these bluetooth enabled smart watch /activity trackers that the troops were wearing while on duty around our military duty stations back in the states also!!! Hells Bells, even the built in microphone if it is so equipped can clearly pickup and further exemplify radio monitoring clear as a bell and hardly short of having unwanted vibration out of the ordinary and record audio and retain those audio clips and converted digitally as saved audio data that can be passed on by handing it off via bluetooth if this receiver is so equipped with transmitter and receiver. Sophistication in spying technology has no real limits in this day and age and China is so damned slick about it that it isn't even funny!!!@@ElectroBananasYT

@@craigtegeler4677 - You mean "case in point".

@@fiendishthingy1630 Sure, maybe, but who am I to really say, but I get it! Damn, you're kind of picky with the sleuthing and word smithing, so I suppose that this is what makes you rather fiendish in the first place! Fiendish right from the get-go and yet thingy! I have always detested any such language that is to be used, calling a object....a thingy, both in the military and on the outside!! When a person cannot name that item, apparatus, object, machinery, vehicle, electronic creation OR otherwise, do NOT call it a thingy!!! I had a Sgt. in the military that barely had ANY horse sense to begin with, that tried to tell me my business, when I could run circles around him twice daily and three times on Sunday that served with me that would constantly say thingy and so I busted his balls every chance that I could get, because this is not a true sign of good sound, reasonable intelligence, especially when some people can try just a little bit harder than that; when using descriptive language! So yeah, this is when I get to bust on you! Back right at yah, pal! Hey now, just try and also think up a different handle to go by on RU-vid and be more original next time around and not in absolute secrecy or trying to hide your name if you will please, because that handle of yours really just doesn't suit you that well!!

Thank you for the comment. Glad you liked the video. As the extra metal is heavy, we are thinking it is there to stop the radio from 'walking off' when played loud as it vibrates a and can move on some surfaces.

Hello, thank you very much for your comment :). Actually I don't think the speaker is too bad. I thought that the frequency response of the speaker is really good. The magnet is a bit on the small side, but as you would know, the bass is already good. Well if you do change it, I would be interested to know how much of a difference it makes.

As long as it fits, the battery will be fine. The radio will only draw the current that it needs, so the max discharge rate will make no difference. I am releasing another video today that shows you how to fit the external antenna mod :)

Yes there a street outside. Well I am glad you like it! Thanks for the feed back, will try and reduce it next time.

Thank you! I could but the radio does not seem to have anything particularly interesting about it. So not worth it I’m afraid.

Yes I think you could be right there. May also be to acoustically dampen the cabinet to reduce vibrations or to stop it dancing around when the bass is up!

@@ElectroBananasYT actually that could also be correct as it has bouncy bass mentioned on that could be the reason for the extra metal weight

@@ElectroBananasYT Yes I would say the weights are there to dampen cabinet resonances. Actually shows that they were trying to make a good sounding radio. I was really surprised to see you get right to taking it apart. Thought at least you would put the battery in and turn it on first!

Thanks for your comment Phoebus. Yes, perhaps I should have tested it first. Much to my parents dismay, from a young age I have always had a habit of taking things apart to see how they worked! Old habits die hard.

@@ElectroBananasYTFunny, i did the same thing as a kid. My problem was I usually moved on to the next thing that caught my attention before putting the last thing back together and they weren't mine to start with. I used to get in so much trouble, I'd hear my mom call out my name and I'd just go oh crap! I still like taking things apart, but mostly now to make them better. I just ordered one of these little radio and thanks to your video I think I can resist taking it apart for a while.

Hello Levi, thanks for your comment. It will scan through the air band (118 to 138MHz) but it just stops on a signal. Can't seem to find a way to automatically store. Have you seen my video on adding an antenna socket to this radio? 73

@@ElectroBananasYT Hi! and tnx for answer, i will hold up the buy of this radio for so long, i will take a peak on your clip! 73, Levi

Have you come across the quansheng uv-k5 family of walkie talkies that are super cheap and can easily be converted with a software download to create a great scanner and radio? There are many videos on this radio. 73 ElectroBananas ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-vmJau8i-hYc.htmlsi=CAXQsELKfyUF4I3b

​@@ElectroBananasYT Yes, a friend of mine has the Quangshen, and it is working all modes (incl.SSB) between 14-1798Mhz, (with a mod) its a beast! - but i have a Baofeng UV17BK for VHF and UHF, (amateur) so i am ok, it is actually the HF bands that interests me mostly! - AND i must say, i JUST got myself an ATS25X1 for the HF bands! - that is also a heck of a receiver! 73 Levi

@@ElectroBananasYT Will get myself an pure AIR scanner later, my wallet is at the moment very thin!! :D

Hello John, the app is called EE Toolkit. I paid for the pro version. Actually use it quite a lot.

Hi John, I have not received any email.