Hello, my Raddy RF-919 which I have owned for a month has developed a fault, I had the main screen backlight set to permanently on for a while, it began to flash for a while and now does not work on the default green setting, it does however work when set to one of the other 6 colours, I was wondering if the backlight uses small smd LED's for each coulour, or if it is some kind of electro luminescent backlight panel. I.E. is it fixable?
Hello Paul, that sounds frustrating! Is it not under warranty? I did not open the display backlight system, however I expect it will be LEDs. May just be an issue with a back connection or solder joint on the green LED chain. So probably fixable.
Hi I bought this to do a relative compression test on my subaru via a waveform. but cant seem to make the amp probe plugged into the multimeter ports work. is this just not possible with this unit? do i have to send it back and get something else?
Thanks for your comment. Yes the switches and interconnection techniques look surprisingly cheap. I think a lot of the cost is the labour required to put this thing together- there is a lot of hand assembly required.
It would have been nice for the air band side of this radio to have placed a copper coil. So that it does not receive AM broadcast radio stations. The copper strand could have been separated for the air band stations to come in properly .
Hi, thanks for your comment. By copper coil I presume you mean shielding? Where I live we don’t have any AM stations, so did not experience any issues with Airband.
You can get the V1.707 firmware, it mostly fixes the muting issue. The issue with bricking is when people don’t properly format the memory card as fat32. 706 was the one people had issues with, not 707. It the same radio as the ZHIWHIS ZWS-c919. They will supply the firmware when the radio is bought through them. Raddy I think got burned by people not doing the upgrade correctly and it seems they won’t provide the firmware, even though the new version is out. Same chips, same radio. Your risk as they say. I had no issues. 73
Hello there, thanks for the comment. Yes, I am now on 707. These different branded versions are all manufactured by HanRongDa, so all essentially the same radio. 73
I had two radios bricked by trying to upgrade and my cards were formatted correctly as FAT32. I followed their instructions to the letter, but they still bricked. I was reviewing the radio and made RADDY aware of the issue.
😂😂😂😂 I do like Cheetos Cheese Puffs, but that is not the culprit. It was from helping the wife cook. She never told me that she put turmeric in the marinade!
This Guy is a genius. As far as the external ferrite rod antenna goes, I see no disenable improvement on medium wave, but a massive difference for long wave, which was very poor before. Radio 4 on 198khz was unbelievably weak here in the west mids.
Hello sir. Luv the vid. A great idea. I currently own 130 receivers but use the rf 320 often.No problem with the encoder so far.thanks RON Z. WA3090SWL.
Been a somewhat a communications radio to me was to much bass so i took out the base reflex at the back and now you can here clearer speach on SW/AIR/HAM/ETC., i know you have heavy bass FM if i want to listern to FM i use my HanRongDa HRD-A320 better still home stereo amp.
That is an interesting idea, Thanks for sharing. I guess it comes down to personal choice. I actually quite like to hear the low frequency sounds. Happy listening!
Great video. Could you do a complete teardown on the new Tecsun S 2200x. I am torn between getting the Raddy RF-919 and the Tecsun S 2200x. I really like the extended specifications of the Raddy but I am concerned about its build quality and durability. The Tecsun seems to be a higher build quality but its specifications are limited compared to the Raddy....Life's full of tradeoffs...Thanks
Thank you for your comment. I would also love to do a similar review of the S 2200x. Unfortunately I do not have access to one at the moment. I understand your dilemma on choosing a radio. No single radio seems perfect! In the end, I think you need to consider what features you will really use. Thanks for watching 😊
Hi, thanks for the comment. I don’t think they are really clones (one company attempting to copy the design of another). I suspect that they are all manufactured by HanRongDa (HRD) in Shenzhen ( SHENZHEN HANRONGDA ELECTRONIC CO). Resellers like Raddy order the radios from HanRongDa to their respective branding requirements (colour, brand name, logo, Bluetooth ID etc). So they will be identical inside. One exception is Retekess (They brand the radio with model number TR113) who request HanRongDa to fit a different battery type (3600mAh polymer instead of the usual 2x2500mAh Li-Ion 18650s) to meet the requirements of the countries that they sell / operate in. Thanks for watching
Some parts and construction techniques are low cost, agreed. Especially the switches and the decision to solder wires directly on to the tracks of the PCBs rather than use connectors. That was a surprise. I think a lot of cost comes from the amount of manual labour needed to put this together - the whole rod antenna assembly and antenna tuner must take considerable time to construct. Having said all that, I think the PCB assembly and rotary encoders, displays and speaker are all good. Thanks for the comment and for watching.
I bought one due to meter functions. Always needed a scope for domestic repairs. I think this purpose is OK. For lab uses, of course I would looking for top notch equipment.
there's a squelch problem on uhf not shutting off fast enough. it makes listening to local police and fire not very good. my mla30+ seems to work fine on am and sw.
Hello John, thanks for your comment. Not heard of the squelch issue before. If you have a short clip of the issue, feel free to email it to me, would be most interested to see what you are experiencing. Thanks for watching
They are very very different types of equipment. Oil and water. The DM303 is designed physically for the harsh environment of the automotive applications and features functions and accessories that are only really relevant to auto diagnostics. The FNIRSI is far from rugged and has specifications better suited for the electronics and electronics repair technician and students. If you are in the automotive industry go for the DM303. If you are interested in electronics, the FNIRSI is the better of the two.
The HDS272S is an amazing handheld for the money. Much better than the FNIRSI in so many ways. It is in a different class, but so is the price. I don’t own a HDS272S, but would love to…
Looks interesting! I'm more of a beginner and I currently have a Kaiweets ST600x, which works OK, I often use it for testing voltages and battery and one thing I've noticed is if the voltage is very low, the multimeter has a hard time measuring it and will often incorrectly output 0v, which can't be true since I'm able to recharge the battery. If the voltage was truly at 0v it would not be able to be charged again. The only other meter I have is a DT-830B which is complete garbage and completely inaccurate. I have used Fnirsi products before, I have the FNB48P USB meter and that works great, it is far better than my Keweisi one, it is very useful. Would you still recommend the DMT-99 or would you say there's a better meter in this price range? (£25-35)? Thanks!
Thanks for watching and your detailed comment. If this is going to be your primary and general purpose multimeter, then I would go for something more conventional. The market is crowded at this price point, but in my opinion, it would be safe to go for the best Uni-T meter that you can afford. The Uni-T UT139 series looks good to me. Amazon also have a deal on the UT61B+ at the moment if you can get one (I have a UT61 series meter and think it is excellent). However if you want features like the graphical interface and USB charging then the FNIRSI is accurate and okay (and fun). All in all, the UNI-T is the way to go if it is your primary meter and you want good battery life, dependability, good build quality and will last the test of time. Get the best you can afford. The FNIRSI is the fun girlfriend/boyfriend and a UNI T is the dependable Wife/Husband. Hope that helps!
@@ElectroBananasYT Video description starts: "The second part of my review of the FNIRSI 2C23T..." Second part?? So...was there a first part? EDIT: yes: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-L8-KsOObSY0.html
Thanks for this video. What I notice is the description on the Silicon chip for adjusting soft muting. We have been trying to determine to what extent Hanrongda has sought to reduce soft muting. Eliminating it altogether would be preferable.
Thanks for watching and for your comment. As I discovered while making this video, the radio IC used for the shortwave band is the well-regarded Si4735. This chip is also used in several other popular low-cost portable radios, including the ATS20+ and the XHData D808. Therefore, there should be no reason why this IC can't be programmed to apply soft muting in the same way as those other radios, which, in my opinion, is quite acceptable.
Great video 👍..very detail n pros & cons. Considering between this 2c23T & the ZT703s.. Quite amazing boot up speed👍 For my use 2C23T fit me well at 10Mhz hopefully their firmware could fix most of the cons u mentioned. ❤thanks for making this video
Hello Jim, thanks for your kind comments! It is a handy jack of all trades and has been quite useful. As long as you are aware of its limitations I think it is great value for money. Recommend getting a zip up carry pouch for it. All the best!
@@ElectroBananasYT thanks, I had one Fnirsi 1014D bot sometime ago at home bench work, don’t want to bring it to field work, most of the time I don’t really need a scope but at times I wish I had one with me always when troubleshooting signals where meter just can’t SEE. Ordering now. Keep up yr good work. ❤️subscribed to yr channel.
@@ElectroBananasYTjust got the 2C23T yesterday. Yeah, I kinda like it. Too bad seems Fnirsi had taken down the firmware for 2C23T. Mine is ver:2.1.0 is this the latest? Thanks for your sharing ❤like to watch yr video.
Hello there, I’m glad you received your unit 😊 I think it must be the latest if you have just received your device. Have you checked FNIRSI’s Website? I am still on V2.0.2.
Knob ! Good solution but I think cutting an IF trimming tool could be an option.. It is a shame that manufactures forget the interface to the 300 lb gorilla as AVE would say. Spending a little more time and money on a quality knob makes for a more satisfying experience. Cracked screen, looks like that is Polystyrene , the Fluke would be Polycarbonate which is more expensive but resistant to impact.
I think the switches, small case screws and the wiring of the loop/rod antennas are the key negative points for me. Other items were okay. Thanks for the comment
Great video mate! I plan to re-watch it again...I did like the 320, and now I think I like this radio even better! I'm nowhere as skilled a tech as you, but I like to watch videos like this. I like the twin ferrite bar antennas. Makes the external antenna inputs look less gimmicky IMHO. Also a better speaker. 2 displays are also a plus. I don't need a flashlight. Some people will disagree. I wonder how long the included batteries last with 2 displays? I may soon find out! Thanks again...keep up the great work...😎
Thanks for the compliments! With regard to the Battery life, I think it would depend on how long they are configured to stay on. The timeout can be set in the setup menu. I may test the current consumption and report back. Thanks for watching!
I tested a couple of units of this model FNIRSI DSO-TC3. I was more interested in the values of the parameters than the functions. All of them presented a big problem with the measure of the volts. I made a simple volt divisor and tested it with two different connections: a Voltmeter and an Oscilloscope. In both cases, the low impedance of the device influences the measure, and the voltage is wrong. When measuring with a DSO-TC3 Voltmeter, the result is the same as measuring with a proper voltmeter with a 2K Ohms resistance in parallel. When measuring with a DSO-TC3 oscilloscope, the result is the same as measuring with a proper voltmeter with a 1M Ohms resistance in parallel. They don't have any software compensation and display the wrong measure. See the attached file for the results vs. the theory. I contacted FNIRSI at the beginning of May 2024 (via email and WhatsApp). The aftersales department knows nothing about the equipment's functioning or electronics in general (they didn't know what a voltage divisor is, even after I sent the drawings). They tried to ignore the situation, and they asked me to pay attention to their website in the future in case they make a firmware update. Nothing happened until today, 17 Jun 2024. Previously, I sent the same complaints to the internet shop I purchased (in Taobao, China), and they told me the issue was a one-device issue and changed it for me. After verifying similar output, I found this is a design problem, and the manufacturer is trying to ignore it. Note that their specification already announced an input resistance of 1MOhms. What is surprising is the value when using the Voltmeter and the fact they have no correction for the displayed value. (I am using the most updated firmware version until June 2024.) On the other hand, if you want to use the signal generator simultaneously with the Oscilloscope, it will deliver a standard pulse wave of 10,000 Hz, three v, without possible modifications. I am talking from memory; I may get the frequency wrong.
I tested a couple of units of this model FNIRSI DSO-TC3. I was more interested in the values of the parameters than the functions. All of them presented a big problem with the measure of the volts. I made a simple volt divisor and tested it with two different connections: a Voltmeter and an Oscilloscope. In both cases, the low impedance of the device influences the measure, and the voltage is wrong. When measuring with a DSO-TC3 Voltmeter, the result is the same as measuring with a proper voltmeter with a 2K Ohms resistance in parallel. When measuring with a DSO-TC3 oscilloscope, the result is the same as measuring with a proper voltmeter with a 1M Ohms resistance in parallel. They don't have any software compensation and display the wrong measure. See the attached file for the results vs. the theory. I contacted FNIRSI at the beginning of May 2024 (via email and WhatsApp). The aftersales department knows nothing about the equipment's functioning or electronics in general (they didn't know what a voltage divisor is, even after I sent the drawings). They tried to ignore the situation, and they asked me to pay attention to their website in the future in case they make a firmware update. Nothing happened until today, 17 Jun 2024. Previously, I sent the same complaints to the internet shop I purchased (in Taobao, China), and they told me the issue was a one-device issue and changed it for me. After verifying similar output, I found this is a design problem, and the manufacturer is trying to ignore it. Note that their specification already announced an input resistance of 1MOhms. What is surprising is the value when using the Voltmeter and the fact they have no correction for the displayed value. (I am using the most updated firmware version until June 2024.) On the other hand, if you want to use the signal generator simultaneously with the Oscilloscope, it will deliver a standard pulse wave of 10,000 Hz, three v, without possible modifications. I am talking from memory; I may get the frequency wrong.
@@ElectroBananasYT OK, cool . I actually just saw that doing my own research going to the Raddy site. I almost impulse bought the other brands which have the battery not changeable. These little things make a difference. Convenience and ease of use are the main selling point for me . Thanks !
I just received my Raddy RF320 radio. Being VERY new to SWL Al the buttons are as foreign as the one who wrote the instructions. When a foreigner tries to write an English text they write the meanings and descriptions in the manner that their home speech directs them. They do not know and understand the nuances of the English language. An American who speaks the manufacturers language should write the manuals. Particularly in instances such as this, where the product is not designed for the experienced SW Listener/operator who knows about band designations and all the symbols on these radios. It took me over an hour to figure out how to set my clock on the Raddy. It is fun when learning is not a brain swelling process. Tedium is not my favorite cuppa tea. Eventually I will figure this bugger out.
@@ElectroBananasYT I cannot get a perfect looking square wave as you have in 54:53. Wondering if this is a scope issue or a probe issue? I have 2 of these (thinking one was bad) all 4 probes the same. I cannot adjust the pot enough to make it square. Also have used the generator from my pico and same result.
I'm very disappointed with one feature of this tester and that is the Component Tester, I have a bunch of old Germanium transistors and this instrument doesn't report them as transistors but either as two diodes or two resistors, my long standing Multi-function Tester TC1, correctly identifies them as functioning PNP transistors.
Hello Derek, thanks for sharing that information. That is a surprise. I also have a TC1, I will try it with some OC71s that I have and see if I get the same results. What version of firmware do you have?
@@ElectroBananasYT I installed the latest version of the software as soon as I took delivery (i.e. Version : V0.3) Hopefully that is the latest version, sorry for the late reply I was on Holiday in Cyprus.
Excellent work, indeed. Many thanks for the detailed explanations. Oh, and I don't have a dodgy knob, yet....haha... ;-) PS...i can't find your DIY mag-loop antenna video....did you make it yet, or am i missing it? Thanks.
Thanks for the compliment and glad to hear that you are not having the same kind of knob issues! The antenna video is in the queue. Will release it as soon as I can!! Thanks for watching 😊
I think this was an issue with earlier versions of firmware, before you upgrade, please refer to my reply to the comment from wogalwogal. Thanks for watching
Thanks, but I purchased this Oscilloscope with 300AED then after one week I sold it with only 100AED because the battery drains very quickly in around 3 minutes, and the scan is very slow !!
Does anyone know if this would this be useful in repairing old transistor radios and modern laptops?I'm just a hobbyist who wants to try out a cheap scope to see if it helps.Thanks
I thought that too. But I think the real reason is to stop it vibrating all over the place. The bass is quite powerful and without extra weight it goes exploring! 😅
