OK, I have assembled it. Excellent quality this version 6 (please pay attention to the product version as they are not the same quality). Very easy to improve also. The ceramic filter of 10.7 MHz has a bandwidth larger than 200 kHz. You can buy according to your budget cheap 150 kHz, 110 kHz, 90 kHz, 50 kHz or 20 kHz bandwidth ceramic filters or even crystal filters with 15 kHz bandwidth which is slightly more expensive. Each of them improve the selectivity and reduce noise. I have installed a socket for this filter so I can change the filter to whichever 10.7 MHz filter I want.
@@GregR361 Some filters provide better receptions. They are made in different qualities with different attenuations. I can receive with narrow band filters weak signals which with large band filters are impossible.
@@batman4e Thanks very much for the reply, I read that you fitted a socket for this filter and I guess my question should have asked did you settle on one particular filter or do you change it to suit particular frequencies within the radios reception range I have purchased a 15 kHz crystal filter but it hasn’t arrived yet and I’m hoping this will be a permanent fix. I live near Sydney airport and have fitted an Airband antenna in the roof which gives me great reception but the noise is disappointing, I’d like to amplify the speaker output but fear that will only make the noise worse
Thank you for the informative video + the documentation link. 👍 I placed an order for one unit from Ali after watching your video. I do have many 2m rigs (all mode) but none covering Airband, so....
25mhz crystal, sounds like it uses an Si5351 chip for the DDS/PLL The ucontroller is a PIC18 series. ATIS == Automated Terminal Information Service, gives pilots local weather, tower frequencies, etc...
Hi Astro boy, I heard that there was marking MS5351 on PLL. MS5351 is a clone of Si5351a. And J4 is ICSP connector for PICKIT. We could hack this controller. I'm guessing that LED driver is TM1637.
I have the next version, V6. it has a bigger solder pcb for secondary conversion and a few extra parts. can't find instructions for it and as i bought it on ebay, seller is unresponsive, taobao isn't any help. do you know where i may get instructions for mine?
Hello, I have the same problem. Received the kit yesterday. The parts are different, and the PCB rev is HM00ABRC_7. The one in this video is HM00ABRC_6. Looks like I received a dual band - FM broadcast + Aviation band. I did do some basic work, and made a short video. Here's the link: ua-cam.com/video/hXCMcJeSWv8/v-deo.html
Hi, I bought this project in the latest version of V7. There are small changes, but about this. How did you clean the PCB so beautifully after soldering the components? What chemical did you use for the PCB? Or maybe you use an ultrasonic cleaner? Thank you in advance for the information.
I have just dug this built receiver out from my storage location & on trying it out again noticed the audio kept popping as though the Squelsh was switching on/of so I tried it with it completely off but it did not reduce the popping sounds along with the audio, has anybody else had this same problem, thanks in advance Terry .
The analog design seems to be from the 80s. Interesting to see the mixer IC being labeled as Sygnetics NE602. It must be more than 20 years old. I guess many ICs in this kit come from recycling. Hopefully they still conform to spec. It seems somewhat strange that there is no matching for the LT10.7 bandpass filter.
@@migsvensurfing6310 Dear Migsven Surfing san, I agree with your comment. NE602 works well as 18dB gain @200Mhz. It's good for SDR chips to extend coverage.
Thanks for sharing. I also bought and assembled this. I'm keeping some issues with this kit. It's very noisy nevertheless strong good receiving signal. And the squelch is very unstable. Do you have any countermeasure for these issues? Please kindly teach me such idea. Thanks.
the only mod that I made was to add a low pass filter at the end of the audio section to kill the high frequency noise. It helped a little. I was just a 0.1uf cap to ground at the digital volume pot
@@IMSAIGuy Thanks much. Depending on your idea I also added 0.1uF. Yes little lower. BTW RX LED signal is stable at receiving. I wonder it can be used for squelch controlling instead of a noise source. Regards,
I replaced the 10.7 filter with one having 150 kHz bandwidth. This has a big attenuation and there is no noise when there is no signal. So that the squelch is not needed. I know it is strange but this filter seems very high quality and there is no noise at all when there is no signal. Then I lifted leg 2 of LM386 to disable squelch completely as it was random. This kit is the best kit I ever constructed and it is high quality in my opinion despite its faulty squelch which I have disable it.
I want to order this however after seeing that most reviews say parts are missing, schematics are in chinese. do you think there are any other reciever kits out there that are better?
Reason why air traffic is am is because fm locks to one transmitter even two or more transmits in same time, making impossible to hear another, which is undesirable effect for air traffic. Am is much better on this manner.
Have you any links for an Instruction booklet for button press sequences please, I have bought the pre asembled unit but has no instructions, thank you in advance,
@@IMSAIGuy Thank you for the details Guy, I have ordered an Extruded Aluminium box & drawn a templet out for the front, I have ordered a longer box as I would like to add a speaker & a mini audio amp.
Hi, nice video. I also bought and built this receiver, it's a nice double conversion one. I'm looking for the firmware of the PIC used in the PLL ring that makes other features. Maybe you know where i could find the source code ? Note that header next tothe microcontroller, it's a typical ICSP interface, the kit producer surely thought to upgrade the firmware nevertheless it's impossble finding FW on the internet.
I built this kit last week, the reception is quite good ( I’m about 10km from Sydney airport) the only issue I have is it’s quite noisy, did you notice a reduction in noise when you put it in a box?
I made one change. It was the high frequency that was the worst. In the schematic there is a chip before the final audio amp. It is a digitally controlled volume. I put a 0.1uf capacitor to ground on the input to act as a low pass filter. It still is bad as a radio. but better I guess
I love the Vintage looking LED display of this radio kit and wanted to ask you, although it only displays to 100 kHz can you tune to say 128.975, even though the display might just say 129. 0. Or is this not possible? I'm trying to think of the 100 kHz channels that I could listen to in this area but there aren't many! But I'd still really like to make the kit. 73 Adam
Oh that's great to know. Thanks. So as you tune 128.97....98......99 then presumably the display only reads 1289. Is there a switch to tune the. 97. 98. 99 range, like a fine tune? Or do youjust tune up with the display not changing digits? Sorry to ask but I can see could be fiddly...... 73 Adam
Hallo, habe mir gerade dein Video angeschaut es ist super..Ich habe auch einen R80 Flugfunkempfänger erworben. Aber leider musste ich feststellen das bei mir kein Schaltbild mitgeliefert wurde. Nun möchte ich dich fragen ob du mir eine Kopie des Schaltbildes.. per Email übermitteln könntest. Ich würde mich sehr über eine Antwort von Dir freuen.. Danke
Good idea but I live near Dover air base. I don't think I would be able to listen in on Military exchange, so will forgo. You dig up some pretty interesting kits, trust your judgement. Nice work.
I couldn't find anywhere this documentation. Thank you for sharing it.
Thank you for everything, especially the documentation !..
OK, I have assembled it. Excellent quality this version 6 (please pay attention to the product version as they are not the same quality). Very easy to improve also. The ceramic filter of 10.7 MHz has a bandwidth larger than 200 kHz. You can buy according to your budget cheap 150 kHz, 110 kHz, 90 kHz, 50 kHz or 20 kHz bandwidth ceramic filters or even crystal filters with 15 kHz bandwidth which is slightly more expensive. Each of them improve the selectivity and reduce noise. I have installed a socket for this filter so I can change the filter to whichever 10.7 MHz filter I want.
Could You please give a link to seller who sell latest version?
May I ask why you would change between the various filters?
@@GregR361 Some filters provide better receptions. They are made in different qualities with different attenuations. I can receive with narrow band filters weak signals which with large band filters are impossible.
@@batman4e
Thanks very much for the reply, I read that you fitted a socket for this filter and I guess my question should have asked did you settle on one particular filter or do you change it to suit particular frequencies within the radios reception range
I have purchased a 15 kHz crystal filter but it hasn’t arrived yet and I’m hoping this will be a permanent fix. I live near Sydney airport and have fitted an Airband antenna in the roof which gives me great reception but the noise is disappointing, I’d like to amplify the speaker output but fear that will only make the noise worse
Thank you for the informative video + the documentation link. 👍
I placed an order for one unit from Ali after watching your video.
I do have many 2m rigs (all mode) but none covering Airband, so....
Interesting video. Looks like fun, so I ordered one. Thanks!
25mhz crystal, sounds like it uses an Si5351 chip for the DDS/PLL
The ucontroller is a PIC18 series.
ATIS == Automated Terminal Information Service, gives pilots local weather, tower frequencies, etc...
Hi Astro boy, I heard that there was marking MS5351 on PLL. MS5351 is a clone of Si5351a. And J4 is ICSP connector for PICKIT. We could hack this controller. I'm guessing that LED driver is TM1637.
It looks great in the box. Unfortunately I live about 100 miles from an airport surrounded by hills. LOL.
Caution! Not all VHF coms happen on the 0.1MHz intervals, recently channel spacing has been reduced.
8.33 kHz
Recently? 8.33 kHz spacing has been around since 1999 in Europe.
Thank you for the video. Perfect English!!!
The ad says 100 kHz steps is that correct, most of world has 25 kHz and even 8.33 kHz channel spacing.
yes 100khz only
I have the next version, V6. it has a bigger solder pcb for secondary conversion and a few extra parts. can't find instructions for it and as i bought it on ebay, seller is unresponsive, taobao isn't any help. do you know where i may get instructions for mine?
sorry
Hello, I have the same problem. Received the kit yesterday. The parts are different, and the PCB rev is HM00ABRC_7. The one in this video is HM00ABRC_6. Looks like I received a dual band - FM broadcast + Aviation band. I did do some basic work, and made a short video. Here's the link: ua-cam.com/video/hXCMcJeSWv8/v-deo.html
Their "Chinglish" descriptions for the product are amusing.
Want one! Looks pretty cool
Hi, I bought this project in the latest version of V7. There are small changes, but about this. How did you clean the PCB so beautifully after soldering the components? What chemical did you use for the PCB? Or maybe you use an ultrasonic cleaner?
Thank you in advance for the information.
MG Chemicals - 413B-425G 413B Heavy Duty Flux Remover, 425g (14.90 oz) Aerosol Can
@@IMSAIGuy :) That's great news for me. I didn't know it for cleaning. Is just a small litter box and a brush enough?
yes, sometimes I use compressed air to dry the board, hold the board vertical and wash from top to bottom
Nice kit. I noticed in other pictures I see the front panel caps are mounted opposite of the front.
the capacitors I received were short enough to be on the front, but certainly could be on the back if that's better
I like building rather than buying but you can have a real radio with a battery, smaller spacing, a real speaker, real screen, a case, etc.
Thanks for sharing. I think I'll buy.
Bunun hazir halini nereden alabilirim link var mı
I have just dug this built receiver out from my storage location & on trying it out again noticed the audio kept popping as though the Squelsh was switching on/of so I tried it with it completely off but it did not reduce the popping sounds along with the audio, has anybody else had this same problem, thanks in advance Terry .
Pretty sure it has a squelch control so you can cut out that hiss.
it does, but it is not a very sensitive squelch and small signals get lost so is almost useless.
Nice kit ,try to se if you can build a scanner for it maybe
The analog design seems to be from the 80s. Interesting to see the mixer IC being labeled as Sygnetics NE602. It must be more than 20 years old. I guess many ICs in this kit come from recycling. Hopefully they still conform to spec. It seems somewhat strange that there is no matching for the LT10.7 bandpass filter.
NE602 is old but still one of the very best you can get.
@@migsvensurfing6310 Dear Migsven Surfing san, I agree with your comment. NE602 works well as 18dB gain @200Mhz. It's good for SDR chips to extend coverage.
Thanks for sharing. I also bought and assembled this.
I'm keeping some issues with this kit. It's very noisy nevertheless strong good receiving signal. And the squelch is very unstable.
Do you have any countermeasure for these issues? Please kindly teach me such idea. Thanks.
the only mod that I made was to add a low pass filter at the end of the audio section to kill the high frequency noise. It helped a little. I was just a 0.1uf cap to ground at the digital volume pot
@@IMSAIGuy Thanks much. Depending on your idea I also added 0.1uF. Yes little lower. BTW RX LED signal is stable at receiving. I wonder it can be used for squelch controlling instead of a noise source. Regards,
I replaced the 10.7 filter with one having 150 kHz bandwidth. This has a big attenuation and there is no noise when there is no signal. So that the squelch is not needed. I know it is strange but this filter seems very high quality and there is no noise at all when there is no signal. Then I lifted leg 2 of LM386 to disable squelch completely as it was random. This kit is the best kit I ever constructed and it is high quality in my opinion despite its faulty squelch which I have disable it.
Did the case reduce the noise your kit radio was picking up?
no
nice work
I want to order this however after seeing that most reviews say parts are missing, schematics are in chinese. do you think there are any other reciever kits out there that are better?
I don't know of one
It needs a squelch circuit, like most commercial aircraft band receivers.
it does have a squelch. the noise level is just too high and at the same level as the signal.
Please do post the documentation. I just ordered one myself from the AliExpress link
A link is now in the description
@@IMSAIGuy Thany You Sir. :)
very good prooject ! could you please post the schematics diagram and chips type used in the PLL board ?
read the description
Reason why air traffic is am is because fm locks to one transmitter even two or more transmits in same time, making impossible to hear another, which is undesirable effect for air traffic. Am is much better on this manner.
Does it work
Have you any links for an Instruction booklet for button press sequences please, I have bought the pre asembled unit but has no instructions, thank you in advance,
link in description
@@IMSAIGuy I needed a component discription/ Diagram, thank you for your verbal discription, I could not find any link to a printed copy thanks.
@@texhow1 github.com/imsaiguy/R80-Air-Band-Receiver
@@IMSAIGuy Thank you for the details Guy, I have ordered an Extruded Aluminium box & drawn a templet out for the front, I have ordered a longer box as I would like to add a speaker & a mini audio amp.
i have complete solder the same kit,but big noisy ,need make a case ,but no dwg file in the video,can you share the dwg file ? thanks!!
all the files I have are on the github in the description. I can't remember if there was a mechanical drawing
@@IMSAIGuy got the file ,thank you
i have bought the same one ,but the seller say no schematic ,can you share the schematic ,please ,help me !
in the description
Hi, nice video. I also bought and built this receiver, it's a nice double conversion one. I'm looking for the firmware of the PIC used in the PLL ring that makes other features. Maybe you know where i could find the source code ? Note that header next tothe microcontroller, it's a typical ICSP interface, the kit producer surely thought to upgrade the firmware nevertheless it's impossble finding FW on the internet.
sorry, I don't know of any firmware source
I built this kit last week, the reception is quite good ( I’m about 10km from Sydney airport) the only issue I have is it’s quite noisy, did you notice a reduction in noise when you put it in a box?
no, I did add a low pass filter on the audio which helps a bit but it is still very noisy
@@IMSAIGuy thanks for the reply👍
What antenna to use
@@rhythmkhattar2738
Home made antenna
ua-cam.com/video/vrGcisUsfzM/v-deo.html
@@rhythmkhattar2738
ua-cam.com/video/vrGcisUsfzM/v-deo.html
I have made the same also have the hiss on the audio many noise mabye you have a solution
I made one change. It was the high frequency that was the worst. In the schematic there is a chip before the final audio amp. It is a digitally controlled volume. I put a 0.1uf capacitor to ground on the input to act as a low pass filter. It still is bad as a radio. but better I guess
Does the PIC firmware code exist anywhere?
i don't think so
what type of antenna do I need
vertically polarized 118-137 MHz
Nice kit but I find I can do the same with my little SDR dongle and a reasonable antenna.
No you can't, not without a computer and screen of some description.
@@daic7274 True but I have those already so no problem here.
plc program code ????
were did you get the case
something I just had laying round
No offense intended, but at the beginning of the video you had all the 4 plastic stand-offs for the LED display in the tray.
I found the 4th a week later...
I love the Vintage looking LED display of this radio kit and wanted to ask you, although it only displays to 100 kHz can you tune to say 128.975, even though the display might just say 129. 0. Or is this not possible? I'm trying to think of the 100 kHz channels that I could listen to in this area but there aren't many! But I'd still really like to make the kit. 73 Adam
the firmware only tunes xxx.xx not the third decimal. It might receive your 128.975 when tuned to 128.97 or 128.98 but I can't guarantee that.
Oh that's great to know. Thanks. So as you tune 128.97....98......99 then presumably the display only reads 1289. Is there a switch to tune the. 97. 98. 99 range, like a fine tune? Or do youjust tune up with the display not changing digits? Sorry to ask but I can see could be fiddly...... 73 Adam
@@M6RDPadam you press (click) the tuning button. then it is fine tune. all digits shift left
That's fantastic to know and makes all the difference. Really appreciate your time and trouble. Best 73
Hallo, habe mir gerade dein Video angeschaut es ist super..Ich habe auch einen R80 Flugfunkempfänger erworben. Aber leider musste ich feststellen das bei mir kein Schaltbild mitgeliefert wurde. Nun möchte ich dich fragen ob du mir eine Kopie des Schaltbildes.. per Email übermitteln könntest. Ich würde mich sehr über eine Antwort von Dir freuen.. Danke
github.com/imsaiguy/R80-Air-Band-Receiver
My home town is: Santa Cruz, CA I now live at the top of California.
crescent city? shasta?
@@IMSAIGuy - crescent City.
@@tubeDude48 I hope you are not inside the supermax
@@IMSAIGuy - Nope! To old to do any harm! ;-)
Can you please send me the schematic and parts value, i bought one but no instructions, your help would be appreciated
It is in the description
I quit buying kits from China - too many missing or defective parts.
Can you send it to me and pay the courier fee
Same it isn't a Zero IF AM AIR Band Reciever.
Could you Please Give advice about the antena did you build the antena? Can you Give some details about? Thank you
@@yecsar Didn't build this one but a similar one with a TDA7000 chip in a modified circuit to allow reception of aircraft.
Good idea but I live near Dover air base. I don't think I would be able to listen in on Military exchange, so will forgo. You dig up some pretty interesting kits, trust your judgement. Nice work.
Military comms are usually on UHF, not airband.