Great quick review, thank you! I just bought one of these, a slightly different model but similar touchscreen and software. It's amazing that a programmable RF source is available with that range so inexpensively. For HF/VHF range I think I might invest in something nicer, but this lets me play in UHF+ for such a small cost. To me, this is useful for testing antennas, amplifiers, receivers, filters, simple spectrum analyzers, etc. A low cost tool in the GHz range.

@TonyAlbus

3 жыл бұрын

Thanks Tom, yes agree very little powerfull thing :) .. i also have a review with same board but with a MAX chip on it, that one starts at 23 MHz .. and upto 6 GHz ..you pay a bit more for that one..but then it covers also CB .. Tony

Interesting sig gen especially the sweep function, I am thinking of a lot of applications for this. Nice video. Keep up the good work,John M0XFX

@TonyAlbus

3 жыл бұрын

Thanks you John, in a few weeks i will be testing the same, but with MAX chip, that one hopefully does have or also has Sine , not only square.... lets see. Tony

Thanks for the review! What is the MCLK for? Can we feed external clock reference (e.g. 10.0 Mhz)?

@TonyAlbus

4 ай бұрын

yes! look for ADF4351 on this channel and you find exactly that video for external ref :)

@RasoulMojtahedzadeh

4 ай бұрын

@@TonyAlbus Thanks! I found your other amazing video 👌

Tony, I wonder if it is possible to take out the 25Mhz crystal and always provide an external RF source. I have a 10Mhz. clock, which has a very pure output (GPS Sync), and I'd like to use that. My question is: I read the specs on the ADF4351 and it is not clear if the signal should be square wave or could be a sine wave. Any thoughts ? I might buy another unit and do a test but I'd like to hear your input first and also hear from other people.

@TonyAlbus

3 жыл бұрын

Hello Maximvs You are not the first to ask and it is indeed very interesting, i will do a video about it in the next weeks. I have the schematic, it is in the description, there you can see it is easely possible, but not sure it will also run on 10MHz.. will also try that. if it does not, i will use my 10M-6PLL to make 25 MHz from my 10MHz GPSDO. If it needs square or sine.. i think square, it goes directly into the IC, so TTL i would think..usualy it detects a rise edge... both have that.. doing the ext. ref. modification on the FY6900 .. both worked... stay tuned :)

@linuxaos

3 жыл бұрын

@@TonyAlbus Another question I have is that if I input a sine wave (that is pure), maybe those frequency spurs will go away. I doubt it but I am still curious. On another note, the specs for the ADF4351 say that the Ref-In signal has a minimum of 10Mhz. So, 10Mhz should be fine. Also, the ADF4351 has both a CLK and Ref-In pins. The datasheet shows the Ref-In going directly to an Inverter gate.

@TonyAlbus

3 жыл бұрын

@@linuxaos Yes i will test that also, i also have a pure sine available :)

@TonyAlbus

3 жыл бұрын

Yes that works :) video #112 kzread.info/dash/bejne/hYKpstykeqmzp7w.html

Got a question. I have the ADF4351 with screen board and I can not get it to talk with my PC. It recognizes the CH340 chip but when I pull up the software to load on frequency hopping, it says USB device not connected

@TonyAlbus

2 жыл бұрын

Hi Chris, with this type of problem i would, 1 connect the USB direct the the PC, no usb hubs. 2. make sure the USB has enough power, if you use a laptop connect the power adapter and check energy saving setting. 3 makesure that you have selected the correct virtual comport in the application. in you device manager you can check what port it created.

nice video. How can I set the time of sweeping function to a specific value. I see that from the video that the smaller steps the slower sweeping function and the opposite is true, but without known the time it will take! How can I set that time?

@TonyAlbus

3 жыл бұрын

Hello Bassam, You are correct, smaller steps take longer.. time you can NOT set., you can set Start Freq. Stop Freq. and stepsize.

Thanks for a great video, Tony. Since you made it, have you experimented with the MCLK port? Do you know if this is an input for an external reference? In my ideal use case, I'd clock this thing from my home built 10MHz GPSDO to test a 2.7GHz frequency counter I'm currently building.

@TonyAlbus

3 жыл бұрын

Hello Luc, one of my viewers sent me a scematic.. it seems, the MCLK is now an output, with its 25MHz refclock.. but when you remove R5, 0 Ohms.. you cab use it as an input... but you need an 25 MHz ref... my Video #076 and #101 i think... i have a PLL that can use the 10MHz as a ref.. and you can easaly output that 25MHZ to this one... thats the idea.. but i have not tried yet..could be an idea for a next video... let me know i you want the schematic for download.. Tony

@LucSmall

3 жыл бұрын

@@TonyAlbus Thank you so much for the reply. I'd be very appreciative if you could post the schematic for download. Having seen that some other ADF4351 modules on AliExpress (plain boards without the LCD) have a 0 ohm resistor, I had wondered if this module would have one too. Looking at the datasheet and a couple of other references, it looks like the chip itself can be clocked at frequencies other than 25MHz. (I don't know if this would lower its max output freq.). If this is true, then the main thing preventing it running from 10MHz directly would be limitations in the software. At 3:38 (kzread.info/dash/bejne/hYmalLZyoLaqY7w.html) you show the settings screen. It looks like the Ref Clock value might be able to be adjusted. If that value can indeed be updated to 10MHz then we might be in luck! Any chance you could check to see if this value can be edited in the interface?

@TonyAlbus

3 жыл бұрын

Hello Luc. i have added the schematic in the description, i will try this and make a video, stay tuned.. could take a few week though.. Tony

@LucSmall

3 жыл бұрын

@@TonyAlbus thanks for the schematic. I will stay tuned for your video! Meanwhile I've ordered one for myself, so hopefully that will arrive over the next few weeks too.

@TonyAlbus

3 жыл бұрын

Yes that works:) .. video #112 kzread.info/dash/bejne/hYKpstykeqmzp7w.html

Dear Tony, Thanks a lot for the video. I would want to know whether or not is it possible to control sweeping speed? Best regards!

@TonyAlbus

2 жыл бұрын

Hi, if i remember correct, the speed can not be adjusted, but the steps can, smaller steps will make is slower.

Il vous 😍i love les tubes remplis de câbles et smd et bouché d'un côté, attention il faut pas avalé la pilule

@TonyAlbus

3 жыл бұрын

Thank you!

Interesting sig gen especially the sweep function and range, I am

@TonyAlbus

3 жыл бұрын

thanks, check also my other adf videos i have made also external ref modifications for gpsdo or other ref. Tony

Hello is it possible to amplify the output signals up to 10W?

@TonyAlbus

Жыл бұрын

Hi, yes i think you need use several linear amps to cover the whole range. but keep in mind, it is unmodulated.

Thanks, you can show me: How to use module ADF4355 250M-6.8GHz Sweep RF Signal Generator VCO Microwave Frequency PLL

@TonyAlbus

3 жыл бұрын

Hello, Thank you for your comment, i do not have the ADF4355 yet, but when i have i will. i see it is a lot more expensive, i don't expect the review soon, unless i get send one for free for testing.

I have an o-scope and digi multi. Could I use this to align my vintage FM stereo receiver?

@TonyAlbus

4 жыл бұрын

Maybe Dave, it can send a signal on the radio-frequencies if you could hook your scope to mf/if and adjust to max amplitude, maybe...

Setting a wider sweep the sweeping stops a lot earlier than the stop. Would be nice if it worked.

@TonyAlbus

3 жыл бұрын

Yes indeed!

Thanks for the video

@TonyAlbus

3 жыл бұрын

Thank You!

👍

@TonyAlbus

Жыл бұрын

Thank you!

So this unit can be use for AM, FM radio Alignment?

@TonyAlbus

2 жыл бұрын

This device does not have modulation, not AM, not FM. maybe have a look at video #226 RF Ganerator.. it does FM

Very nice, please could you post the product's link?

@TonyAlbus

3 жыл бұрын

Hi John, catching-up old comments, i think i did at the time right? its there

@JohnUsp

3 жыл бұрын

@@TonyAlbus Thank you!

Hi, is it possible to trigger a frequency sweep?

@TonyAlbus

Жыл бұрын

By pushing the button on the toutch screen :) maybe by the software, but i did not find any special logical input or something on the board

Here the secret of USB serial control: Baud:115200, Data:8, Stop:1, Parity:none, Type:Hex, Send on Enter:none Point: send 11 bytes B0..B10 with B0:ad; B1:01=ADF4350,02=ADF4351; B2:01=point; B3:01=0dB,02=-3dB,03=-6dB,04=-9dB B4-6:fRef (03 d0 90 = 25.0000 MHz); B7-9:fPoint (03 0d 40 = 200.000 MHz); B10:sum(B0..9) & 255 Stop: send 3 bytes B0..B2 with B0:ad; B1:ff; B2=ac Sweep: send 18 bytes B0..B17, with B2:02=sweep; (others same as Point) B7-9:Start; B10-12:Stop; B13-15:Step; B16:01=kHz,02=MHz; B17:sum(B0..16) & 255 Return on success: ad 66 13 Example: ad 02 01 01 03 d0 90 00 88 b8 54 = ADF4350,Point,0dB,fRef=25.0000,f=35.000 ad ff ac = Stop ad 02 02 01 03 d0 90 0a ae 60 0c 35 00 00 13 88 02 0b = ADF4351,Sweep,0dB,fRef=25.0000,f=700.000..800.000MHz, Step 5.000MHz Nice to use a small Python script to set a defined frequency, and e.g. read a filter response with logarithmic RF detector+Arduino, before switching to next frequency. Mixed operation with remote und manual works fine.

@andreitalapov9199

3 жыл бұрын

Karl-Heinz, thanks for the very useful information. I wonder if there are more USB serial commands for the ADF4351, such as a command to disable output before the ADF4351 PLL is locked?

@TonyAlbus

3 жыл бұрын

Thank you very muchKarl-Heinz!!, very helpfull

@karl-heinzschweikert7593

3 жыл бұрын

@@andreitalapov9199 I had hoped to find something here, but no info on the internet. So I asked the seller for the software the screenshots are showing PLZ-PLL-435X. It took me a week to get it. They sent me evering except this program (from chinese screenshots, to links to protected pages, even the password, but without the needed username, and many other useless things). Finally I succeeded to convince them to send as zip. The software itself is not very helpful, you can adjust the same items from PC as with the device. But with a serial sniffer I could listen to the traffic, and easily find out the bytes format. As programmer I would have added a kind of backdoor, e.g. to set the ADF4351 registers directly. Possibly there is something like that, but its difficult to find out. May be by code guessing (start with 0xAD, end with checksum), or read out the PIC assembly code (unless protected). Anyway, its a lengthy task ...

@TonyAlbus

3 жыл бұрын

Hello @karl-Heinz could you sent me that zip by email or link to a download?

@TonyAlbus

3 жыл бұрын

@Karl-Heinz Received well!! thanks a million...

Will the eval board do a step size of 100 hertz ?

@TonyAlbus

2 жыл бұрын

Hi Bill, i am not sure, i can try it out, but if you want it that precize, you prob also need to look at my Modification for external ref to get the internal orcilator on track.

@TonyAlbus

2 жыл бұрын

1K is smalest step

hello friend, the generator has a tone output ?.

@TonyAlbus

3 жыл бұрын

Hello Mikel, it starts at 35 MHz RF, there is no audio IN or OUT.

@mikelbringasdiaz8955

3 жыл бұрын

@@TonyAlbus ok, thanks, i thought i had af generator.

Interesting, but it would be good if we could see the screens properly.

@TonyAlbus

3 жыл бұрын

Thanks Karl... yes the videos improve little by little...

Many thanks for interesting video, awaiting for delivery of same device. Meanwhile having ping-pong with seller regarding the PC software. Tony, could you please post the download link for PLZ-PLL-435X.zip file here? Many thanks in advance!

@TonyAlbus

3 жыл бұрын

Hi Ruslan, yes getting the software was a pain, i found it somewhere on the web, and one was given to my by a viewer of my channel, both are untested by me, but i will put the download links in the comments of this video.

@rusland961

3 жыл бұрын

@@TonyAlbus Many thanks for provided links! Links #1 and #3 are developer's software, a bit complicated for my project. As far as I need the sweep mode only the link #2 is best matching. Greetings from Mauritius island!

Now i know how you lost vision 😅

@TonyAlbus

Ай бұрын

Yes can happen in a sec.

@ajingolk7716

Ай бұрын

@@TonyAlbus looking at thos screens 🤷🏻‍♂️ i hope you can purchase a E4407B or a siglent 😇

@TonyAlbus

Ай бұрын

@@ajingolk7716 The video is 3 years old, by now i am very happy with a Siglent SSA3032X-Plus :)

@ajingolk7716

Ай бұрын

@@TonyAlbus thanks god now you should re-make it with the new equipement 😎😁🤞

Пламенный привет из России! А гармоники есть? Только сегодня получил такую же коробочку из Китая.

@TonyAlbus

3 жыл бұрын

Thank you for your greetings, same from The Netherlands, at the moment i do not have a proper Spectrum analyzer to see good calibrated harmonics. my Anritsu is so old its more a spectrum monitor :) but on the Anritsu i did not see, i will try this on the USB-Spectrum analyzer later, keep an eye on my channel, i will put it in a Q&A video.

@radiosiska

3 жыл бұрын

@@TonyAlbus Спасибо за ответ! Очень приятно что вы мне ответили!!! Я очень польщен. Я простой радиолюбитель очень интересуюсь этой темой. Вчера проверил этот генератор на ADF4351, был приятно удивлен что он излучает на антенну 34см на 433 MHz в эфир. Не понравилось, что мощность на выходе не откалиброванна и непонятно сколько db. Вход mclk это для модуляции или тактирования внешним генератором. Прошу прощения плохо знаю английский

@radiosiska

3 жыл бұрын

@@TonyAlbus Power out 50 mW max?

@TonyAlbus

3 жыл бұрын

@@radiosiska You are Welcome!... about the output power... i have an video about that: kzread.info/dash/bejne/hamOu5ePcrfAiMY.html and a document with my tests for download in the description of the video.

@TonyAlbus

3 жыл бұрын

@@radiosiska +/- 1mW or 0dBm with slider to the Maximum...

I can't see shit!

@TonyAlbus

3 жыл бұрын

Indeed, also watch: kzread.info/dash/bejne/hYKpstykeqmzp7w.html