Impressed by efficiency of build, did exactly the same except reflector, tin can, 102mm dia, 75mm depth. Was poorly 80dBm, now good as 65-67. Haha, at 10cm from it, at the path of the narrow beam shown -15dBm
15 years ago i built this and used a CD spindl for reflector and holder. It worked great! The first and one of the best antenna i built. Sorry for my english. ;)
My first antenna that i built myself was a cantenna. Cantenna works perfect but i will try biquad too. It is a good thing trying different type of antennas :)
Love your Videos, I find the problem with a marking tool is that you mesure the length to your grips, As soon as you make your bend the length you have just messured has reduced.
Dear Andrew, thanks for all the fantastic videos, I really enjoyed all of them. I have days watching them over and over again. Just love it! You make it look so easy and so much fun. Keep up the good work! I actually tried some of your builds, with varying succes, better succes when I started using the correct materials. Can you answer following questions? A-In this build, wire diameter =1.25mm ? B-Will all sorts of paint work? Any paint to specifically not use?stay clear of? I allways thought painting is bad for the signal. C-I noticed you never really sharpened the bends afterwards; make them more square, would that be worse? D-I allways wondered about the exact biquad shape related to wire size; inside v.s. center v.s. outside lenght of elements. I noticed the PCB version of the 2.4 biquad yagi has a driven elemnt of outside 31.25mm, inside 25mm outside. Any chance you can shed some light on this?
Damn you Andrew, just as I got over my Fray Bentos Steak & Kidney pie addiction you give me an irrefutable reason to buy some more. Nice video, clear and to the point.
I apologise for not answering posts for the last few weeks as I have been extremely busy and not had the time to log into youtube. Hopefully things are back to normal now so I can get back to making videos.
it would be 15 and I know this because I have a measuring device. 15mm is a little bit better than half an inch. 50mm is two inches Now look at the video you can see NO way is it 2 inches or 50 mm so it would have to be 15mm. You also can tell another way. From the tip of your thumb to its first knuckle is approximately 1 inch. Look at the length of the antenna compare it to Andrew's first knuckle and the tip of his thumb you can see it's shorter. meaning it's 15mm. i hope that helps.
I just started w/ your videos and being a tinker all my life I like the way you take everyday items and use tools that even those aren't constantly tearing the thing apart to see how they work or I my case I think there's got to be a better way this can be done...I build and fly remote control airplanes, boats, cars, and as I think you just called it a quad think I like the building part the best. Sorry I get off sometimes.....Love UR stuff, can follow UR thought process but you are much smarter and have focused your craft in a direction I haven't gotten into yet, so you are much smarter and I have something I have been looking in for over a year now and would really appreciate your input. I have a hard time paying for cable, wifi, phone, tv. Not so much the money but I can't stop thinking that there has to be a better way, so to pick up an open source wifi pull it into my house, amplify it and push it out through the rest of the house or run 1 LAN....An antenna for 50 -100km direct L.O.S. Cad5/cad 6/ the connectors. Alfa to a router? modem? bottom line I would like to pick up open wifi and get online and buy what I can and make what I need, to get the best and the fastest for the leastest.....Didn't mean to put this in your reply, just popped into the head...Thank you for the time you spend on these vids,
You need to discuss what to do with antenna AFTER it's built. I need to boost my mobile reception in the house. I want to mount the antenna on a tall pole from the roof. What do I do with the signal in the coax cable? How do I bring it down and into my wifi network. What hardware do I need to make that happen? Does the antenna transmit the stronger signal back to the cell tower? I appreciate your clever handiwork, but what comes next?
Hey Andrew. I've been watching some of your videos and I'm definitely going to be making a "Piequad" as well as the more common cantennas. I'll be making a youtube video of my creations so I'll be sure to give you a shout-out and a link too. Thanks for the vids! :)
Hi Andrew, Thanks for the vids, I subscribed some time ago. I’ve just watched this vid and the one about using a photographers umbrella, very interesting. But it’s this vid and the comments below that has really grabbed my attention. I know so little about WiFi etc that I struggle to spell it !!! But I’m a eager learner out of necessity ( but plowing through cr-p on Y/T about this subject and just about everything else is a skill in itself ). I have been paying through the nose (£££) for a long time for Mobile Data which most of the time is so slow I overtake it on the train ( would that be the Doppler Effect ? ). I regularly camp in a rural situation ( that has a poor Mobile Data signal and no power source other than solar panel and other equipment I’m amassing for the job. Around town is just the same ( for different reasons / building walls that are thick ). And public WiFi - ( as if ) who invented that joke, ok for teenagers furiously texting each other. I want Mega mbS out of the suppliers, I’m not going to spend the rest of my life, or even just 5 secs ( it all adds up ), waiting for sh-t to D/L I’ve improved this situation recently by using MiFi’s ( I can spell that, just !!! ). And I’m contemplating trying to use them at my camp set up in a directional bowl mounted on a pole, along with suitably placed battery powered WiFi Repeaters and or Wireless USB Drives to better grab a signal and throw it in my direction. I’m vaguely aware that Mobile Data is transmitted from providers towers at a slightly different wavelength to WiFi from a Router etc. I presume your method and equipment is for improving connection to Mobile Data providers towers - please comment. I’m also interested in your mention of the smaller version of this antenna that you made with a Sardine Can. I’m interested in this as a way of improving either Public WiFi or more importantly to improve Mobile Data around town. Either by the ideas above for my camp for my iPad, or connecting directly to my Android phones ( I’ve just watched a vid about removing the Test Port on a Mobile as a way of disabling the electronics to the factory supplied internal antenna so the phone will recognise a more [ usable ] external antenna ). Or to connect to Dongles for my Laptop. Please comment. My spelling over time is slowly improving, but I could do with a bit of advice so I can more quickly start uttering the type of words that usually grace the lips of Mary Poppins, know what I mean, - Supa Wa ?? Thanks for the Vids.
This biquad antenna does work very well. I built different versions of it. If you live in mainland western Europe and have an Action shop in the neighborhood, you can use their Disney canister for it (example: www.action.com/nl-nl/p/disney-opbergblik-/ ). It only costs 59 eurocents and you can make an antenna from the lid as well as the container. It's 12 cm in diameter, so close to a full wavelength of 2.4 GHz which is recommended. Make sure to use a very short coax cable, preferably of high quality and your soldering should be good (no cold joints). I just used the SMA-connectors of the standard-antenna's and made some extra shielding (Aluminium tape) where I joined the cables together. For the element itself I just used the core of the coax cable.
Hi, I'm from Indonesia. As most of WiFi extenders (access point radios) have 2 antennas, so we have to decide which one is the receiver antenna, or the transmitter antenna, then we can apply the quad antenna as shown in this video. I need your explanation, thanks in advance.
This looks useful for a wider angle of signal acceptance and I might well give it a try. Please let me have your address so I can send the pie to your dog! LOL
Thanks Andrew, fantastic video & good humour!I watched your video's over and over but can't understand how de quater wave length size is exactly tied to the biquad loops.Inside dimension of wire loop?, center dimension of wire loop? outside dimension of wire loop?Can u share your experience on this matter?
I joined your channel and have been building some of your designs I liked this one but finding a tin will be hard. I am new to CZcams and if I can figure out how I will upload a video of what I have done so far. Keep up the great work.
Hi Andrew. Very inventive reuse of a pie dish! I want to make a pair of biquads for 700 Mhz 4G and install them -45 / +135 degrees for a MIMO installation. I have some perforated aluminium sheet (as used in security doors) I'd like to use for the reflectors. My question is, can I use a single sheet as a reflector for both of the antennas? Mount one biquad element angled one way up one end of the sheet and the other biquad element at the other end of the sheet, angled the opposite way but on a single reflector? Or do I need to have completely separate antennas? thanks for any suggestions.
i dont understand hooking the ground to the antenna aint it supposed to use the outer post of connector to outer post of the device its being hooked to i know in tv antennas this causes a huge loss in signal its the same as have the grounding shield touching the signal wire kills reception it looks like basicly you just hooked them togther using the anteenna itself as a jumper wire if im missing something please correct me
Hello Mr. McNeil, would an antenna like this one be a good option to use tapping into wifi signals provided by places like MacDonalds sitting in a campervan on there parkinglot ?
Hi Andrew great video, i tried your build and it didn't go so well, i used an N connector with coax to connect to my alfa card but the results was disappointing but that could be the fact i struggled with getting the measurements right, i have ordered a caliper to get my measurements, but where do you get the sma panel mount connectors from that you use in this video? i've looked on ebay and amazon but can't find the correct ones, if you could get me a link that would be great, thank you
Hey Andrew or anyone who can help, can I know what connector did Andrew use in the video? Edit: How did Andrew connect the wifi adapter directly to the Biquad antenna? Please help.
Hi mate I know this is a very old video, I'm going to make one for my radio transmitter, can you use brass wire for the actual antenna? The copper wire I have is just a bit to flexible
@@andrewmcneil ive just tried the biquad, works ok, what antenna in your apinion would be the best, im using my standard 200mw rc transmitter and i want to get more range without going to 900mhz
yeah, I know it's just a boring CD case,, but it's water resistant has a nifty adjustable stand, and works like hell mate ;) i67.tinypic.com/2i251rp.jpg i67.tinypic.com/ip89ac.jpg i68.tinypic.com/4q55b5.jpg i64.tinypic.com/n3om6p.jpg i63.tinypic.com/2d9d0dw.jpg i68.tinypic.com/igb2b8.jpg i68.tinypic.com/i71ymq.jpg last pic, far right, it was a cheap chinese flat panel that was made entirely wrong, they had reflector, driven panel separated way too far apart, and then all of it connected with metal supports,nuts & bolts then connected to a usb wif donglei stuffed in there as well. I used nylon stand-offs instead, measured proper gap, eliminated the usb dongle, using a alpha instead...100% improvement
Hi Andrew! I saw your videos about antennas. Can you please tell me which antenna is better between your 3 models: Piequad biquad, Biquad Yagi, Parabolic double biquad? I want to use them for long range. Thanks, Remus
The canantenna is too directional. I want to use them for my RC plane. I like the Biquad Yagi, but i don't know if these one in the video is better. Thanks, Remus
@@popescuremus6996 Check out the Sunhans wifi boosters. I heard a lot this brand. And i will buy a signal booster for wifi. But they sell products for RC too. Official website is: sunhans.com/panel/client/index.php?cat=53
The "gold" plating is a bit off, but it's completely the same otherwise. For high end antennas you may still want to look into quality connectors, since even the smallest losses are pretty important on long range communication, but for regular wifi within 3km it is perfectly fine.
@@lazar2175 hi, im kinda new to all these stuffs. Can I know what kind of panel mount connector should I buy if i want to connect it directly to a RP-SMA female?
@@eesama9883 You need a RP-SMA male panel mount connector, which while rare is existing. My advice is that you don't use a panel mount and instead buy a regular connector, preferably one that is solder on unless you have crimpers. Then solder the coax to the connector and to the antenna, giving you a sort of a "pigtail" that's quite short but has several advantages, including better articulation of the wifi adapter and the cheaper price instead of the male RP-SMA connector. But feel free to try both, only the regular connectors are like 10 pieces for $5 and panel mount are like 1-2 for $5.
@@lazar2175 Sorry, I'm very confused here. So, antenna n-type female panel-mount connector coaxial cable RP-SMA male connector? Edit: I understand what you're saying now, but don't most of the TV coaxial cables will cause some loss? The recommended LMR-400 coax is so expensive.
@@eesama9883 Err, go to the aliexpress, the 5m of the coax is under $10. Also, using the adapters is not the smartest thing, since god knows how they are engineered so there my be impedance mismatching or other things that could cause big losses. Remember a pretty important rule in RF, especially microwave: No adapters and sharp turns unless absolutely necessary. Every adapter will reduce your signal by about 1db, some will more and some less. So. Buy a panel mount RP-SMA and use a RP-SMA to RP-SMA cable. Or desolder your RP-SMA connector and solder a regular SMA connector, those are a bit more common.
How it would work with isolated reflector please? I saw antenna without connector, reflector is isolated and cable is joined to quads directly: czcams.com/video/HwTBZ6vXigc/video.html
Impressed by efficiency of build, did exactly the same except reflector, tin can, 102mm dia, 75mm depth.
Was poorly 80dBm, now good as 65-67.
Haha, at 10cm from it, at the path of the narrow beam shown -15dBm
I am impressed by the performance of this one, your videos are very educational and interesting, thank you
15 years ago i built this and used a CD spindl for reflector and holder. It worked great! The first and one of the best antenna i built. Sorry for my english. ;)
My first antenna that i built myself was a cantenna. Cantenna works perfect but i will try biquad too. It is a good thing trying different type of antennas :)
Love your Videos, I find the problem with a marking tool is that you mesure the length to your grips, As soon as you make your bend the length you have just messured has reduced.
Dear Andrew, thanks for all the fantastic videos, I really enjoyed all of them. I have days watching them over and over again. Just love it! You make it look so easy and so much fun.
Keep up the good work!
I actually tried some of your builds, with varying succes, better succes when I started using the correct materials.
Can you answer following questions?
A-In this build, wire diameter =1.25mm ?
B-Will all sorts of paint work? Any paint to specifically not use?stay clear of? I allways thought painting is bad for the signal.
C-I noticed you never really sharpened the bends afterwards; make them more square, would that be worse?
D-I allways wondered about the exact biquad shape related to wire size; inside v.s. center v.s. outside lenght of elements.
I noticed the PCB version of the 2.4 biquad yagi has a driven elemnt of outside 31.25mm, inside 25mm outside.
Any chance you can shed some light on this?
Damn you Andrew, just as I got over my Fray Bentos Steak & Kidney pie addiction you give me an irrefutable reason to buy some more.
Nice video, clear and to the point.
+James Lamb James don't blame me for falling of the wagon! :-)
I apologise for not answering posts for the last few weeks as I have been extremely busy and not had the time to log into youtube. Hopefully things are back to normal now so I can get back to making videos.
+andrew mcneil 50 millimeters our 15mm ???
11.20
it would be 15 and I know this because I have a measuring device. 15mm is a little bit better than half an inch.
50mm is two inches
Now look at the video you can see NO way is it 2 inches or 50 mm so it would have to be 15mm.
You also can tell another way. From the tip of your thumb to its first knuckle is approximately 1 inch. Look at the length of the antenna compare it to Andrew's first knuckle and the tip of his thumb you can see it's shorter.
meaning it's 15mm.
i hope that helps.
Thank you ..
Hi Andrew,
I've sent you a PN regarding an antenna problem I have.--Ty for taking the time to look into it.
I just started w/ your videos and being a tinker all my life I like the way you take everyday items and use tools that even those aren't constantly tearing the thing apart to see how they work or I my case I think there's got to be a better way this can be done...I build and fly remote control airplanes, boats, cars, and as I think you just called it a quad think I like the building part the best. Sorry I get off sometimes.....Love UR stuff, can follow UR thought process but you are much smarter and have focused your craft in a direction I haven't gotten into yet, so you are much smarter and I have something I have been looking in for over a year now and would really appreciate your input. I have a hard time paying for cable, wifi, phone, tv. Not so much the money but I can't stop thinking that there has to be a better way, so to pick up an open source wifi pull it into my house, amplify it and push it out through the rest of the house or run 1 LAN....An antenna for 50 -100km direct L.O.S. Cad5/cad 6/ the connectors. Alfa to a router? modem? bottom line I would like to pick up open wifi and get online and buy what I can and make what I need, to get the best and the fastest for the leastest.....Didn't mean to put this in your reply, just popped into the head...Thank you for the time you spend on these vids,
Fantastic Build Andrew, it`s on my weekend to do
list... cheers and thank you very much
+rwquad Glad you enjoyed it.
You need to discuss what to do with antenna AFTER it's built. I need to boost my mobile reception in the house. I want to mount the antenna on a tall pole from the roof. What do I do with the signal in the coax cable? How do I bring it down and into my wifi network. What hardware do I need to make that happen? Does the antenna transmit the stronger signal back to the cell tower? I appreciate your clever handiwork, but what comes next?
Hey Andrew. I've been watching some of your videos and I'm definitely going to be making a "Piequad" as well as the more common cantennas. I'll be making a youtube video of my creations so I'll be sure to give you a shout-out and a link too. Thanks for the vids! :)
Hi Andrew, Thanks for the vids, I subscribed some time ago.
I’ve just watched this vid and the one about using a photographers umbrella, very interesting. But it’s this vid and the comments below that has really grabbed my attention.
I know so little about WiFi etc that I struggle to spell it !!!
But I’m a eager learner out of necessity ( but plowing through cr-p on Y/T about this subject and just about everything else is a skill in itself ).
I have been paying through the nose (£££) for a long time for Mobile Data which most of the time is so slow I overtake it on the train ( would that be the Doppler Effect ? ).
I regularly camp in a rural situation ( that has a poor Mobile Data signal and no power source other than solar panel and other equipment I’m amassing for the job.
Around town is just the same ( for different reasons / building walls that are thick ).
And public WiFi - ( as if ) who invented that joke, ok for teenagers furiously texting each other.
I want Mega mbS out of the suppliers, I’m not going to spend the rest of my life, or even just 5 secs ( it all adds up ), waiting for sh-t to D/L
I’ve improved this situation recently by using MiFi’s ( I can spell that, just !!! ).
And I’m contemplating trying to use them at my camp set up in a directional bowl mounted on a pole, along with suitably placed battery powered WiFi Repeaters and or Wireless USB Drives to better grab a signal and throw it in my direction.
I’m vaguely aware that Mobile Data is transmitted from providers towers at a slightly different wavelength to WiFi from a Router etc.
I presume your method and equipment is for improving connection to Mobile Data providers towers - please comment.
I’m also interested in your mention of the smaller version of this antenna that you made with a Sardine Can. I’m interested in this as a way of improving either Public WiFi or more importantly to improve Mobile Data around town. Either by the ideas above for my camp for my iPad, or connecting directly to my Android phones ( I’ve just watched a vid about removing the Test Port on a Mobile as a way of disabling the electronics to the factory supplied internal antenna so the phone will recognise a more [ usable ] external antenna ). Or to connect to Dongles for my Laptop.
Please comment.
My spelling over time is slowly improving, but I could do with a bit of advice so I can more quickly start uttering the type of words that usually grace the lips of Mary Poppins, know what I mean, - Supa Wa ??
Thanks for the Vids.
This biquad antenna does work very well. I built different versions of it.
If you live in mainland western Europe and have an Action shop in the neighborhood, you can use their Disney canister for it (example: www.action.com/nl-nl/p/disney-opbergblik-/ ). It only costs 59 eurocents and you can make an antenna from the lid as well as the container.
It's 12 cm in diameter, so close to a full wavelength of 2.4 GHz which is recommended.
Make sure to use a very short coax cable, preferably of high quality and your soldering should be good (no cold joints). I just used the SMA-connectors of the standard-antenna's and made some extra shielding (Aluminium tape) where I joined the cables together. For the element itself I just used the core of the coax cable.
Hi, I'm from Indonesia. As most of WiFi extenders (access point radios) have 2 antennas, so we have to decide which one is the receiver antenna, or the transmitter antenna, then we can apply the quad antenna as shown in this video.
I need your explanation, thanks in advance.
Will I be able to get the same gain with a chicken & mushroom pie?
depends on how mushroom there is
d'ohhh i see what ya did there ;)
This looks useful for a wider angle of signal acceptance and I might well give it a try. Please let me have your address so I can send the pie to your dog! LOL
I'm noticing the biquad antenna has a driven element and a reflector. I wonder if parasitic elements can be made to make it a biquad yagi hybrid. 🤔
There's already some biquad yagi videos on this channel.
Thanks Andrew, fantastic video & good humour!I watched your video's over and over but can't understand how de quater wave length size is exactly tied to the biquad loops.Inside dimension of wire loop?, center dimension of wire loop? outside dimension of wire loop?Can u share your experience on this matter?
Thanks bud I'm going to make one of these very handy thumbs up..peace
+Dji Leon Thanks Dji
I joined your channel and have been building some of your designs I liked this one but finding a tin will be hard. I am new to CZcams and if I can figure out how I will upload a video of what I have done so far. Keep up the great work.
+old time engineer
A cheapo pie pan should be about the same dimensions.
+Aurthor Thing A victoria sponge tin will work well like this one goo.gl/LDUk0b
Hi Andrew. Very inventive reuse of a pie dish!
I want to make a pair of biquads for 700 Mhz 4G and install them -45 / +135 degrees for a MIMO installation.
I have some perforated aluminium sheet (as used in security doors) I'd like to use for the reflectors.
My question is, can I use a single sheet as a reflector for both of the antennas? Mount one biquad element angled one way up one end of the sheet and the other biquad element at the other end of the sheet, angled the opposite way but on a single reflector? Or do I need to have completely separate antennas?
thanks for any suggestions.
nice work with WiFi I got a antenna that people can connect to the internet around the block.
what is the gain acheiveable
i dont understand hooking the ground to the antenna aint it supposed to use the outer post of connector to outer post of the device its being hooked to i know in tv antennas this causes a huge loss in signal its the same as have the grounding shield touching the signal wire kills reception it looks like basicly you just hooked them togther using the anteenna itself as a jumper wire if im missing something please correct me
I've never seen those pies in the states but you can get them on amazon.
im going to try using a pot lid, the hole is already drilled for you
Excellent as always. Are the dimensions and material of the pie dish important?
What about a PCB printed double bi-quad for 5GHz? That would be interesting.
Hello Mr. McNeil, would an antenna like this one be a good option to use tapping into wifi signals provided by places like MacDonalds sitting in a campervan on there parkinglot ?
Hi Andrew great video, i tried your build and it didn't go so well, i used an N connector with coax to connect to my alfa card but the results was disappointing but that could be the fact i struggled with getting the measurements right, i have ordered a caliper to get my measurements, but where do you get the sma panel mount connectors from that you use in this video? i've looked on ebay and amazon but can't find the correct ones, if you could get me a link that would be great, thank you
Any update on the connectors?
Love the pie unit can you make one for 433Mgz?
Hey Andrew or anyone who can help, can I know what connector did Andrew use in the video?
Edit: How did Andrew connect the wifi adapter directly to the Biquad antenna? Please help.
andrew, will this antenna work for 5.8/2.8ghz fpv?
Hi mate I know this is a very old video, I'm going to make one for my radio transmitter, can you use brass wire for the actual antenna? The copper wire I have is just a bit to flexible
Yep I use brass all the time
@@andrewmcneil thanks for the fast reply, what about 1.5mm copper, does the slightly thicker wire matter?
@@skinnyguy3184 1.5 is fine search for brass brazing rod on ebay
@@andrewmcneil ive just tried the biquad, works ok, what antenna in your apinion would be the best, im using my standard 200mw rc transmitter and i want to get more range without going to 900mhz
how about an old 35mm bulk film can. it has straight sides.. Great video
+craig palmer That would work are they aluminium or steal? If they are aluminium you would have to attach the SMA with small bolts.
+andrew mcneil thank you very much ,might give it a try
What material is the bow tie ? Looks like brass in the video.
Hello Andy, can you do HD TV antenna please, thanks
im struggling to find that flat style connector
can you do a video on swr?
can you make 3200- 3800 frequency for 5g signal
OK 👌
yeah, I know it's just a boring CD case,, but it's water resistant has a nifty adjustable stand, and works like hell mate ;)
i67.tinypic.com/2i251rp.jpg
i67.tinypic.com/ip89ac.jpg
i68.tinypic.com/4q55b5.jpg
i64.tinypic.com/n3om6p.jpg
i63.tinypic.com/2d9d0dw.jpg
i68.tinypic.com/igb2b8.jpg
i68.tinypic.com/i71ymq.jpg
last pic, far right, it was a cheap chinese flat panel that was made entirely wrong, they had reflector, driven panel separated way too far apart, and then all of it connected with metal supports,nuts & bolts then connected to a usb wif donglei stuffed in there as well. I used nylon stand-offs instead, measured proper gap, eliminated the usb dongle, using a alpha instead...100% improvement
Hi Andrew!
I saw your videos about antennas. Can you please tell me which antenna is better between your 3 models: Piequad biquad, Biquad Yagi, Parabolic double biquad? I want to use them for long range.
Thanks,
Remus
For long range a cantenna, for super long range a cantenna and satellite dish :-)
The canantenna is too directional. I want to use them for my RC plane. I like the Biquad Yagi, but i don't know if these one in the video is better.
Thanks,
Remus
@@popescuremus6996 Check out the Sunhans wifi boosters. I heard a lot this brand. And i will buy a signal booster for wifi. But they sell products for RC too. Official website is: sunhans.com/panel/client/index.php?cat=53
@@popescuremus6996 If you suspicious about their products performance check out this review: czcams.com/video/rSejk9IS-fQ/video.html
you should have posted this at the start of the month
+Ian Jackson Your right Ian I should of!
+andrew mcneil how much flow to antenna
Can this be used on the TX side of a 2.4ghz rc transmitter
Yes but remember the biquad is a linear antenna
tried several different videos to get to your shop link. but none seem to be working ?getting 404 no permission error message mate??
you're not alone ;)
Andrew,
Alfa has a 2000Mw unit. Is it any better than the 1000Mw unit you use?
yes, by a 1000Mw, or 1watt to the layman
I still wondering if china stuff (cheaper connectors & others ) perform as well as their costly europeean ou american equivalents ?
The "gold" plating is a bit off, but it's completely the same otherwise.
For high end antennas you may still want to look into quality connectors, since even the smallest losses are pretty important on long range communication, but for regular wifi within 3km it is perfectly fine.
@@lazar2175 hi, im kinda new to all these stuffs. Can I know what kind of panel mount connector should I buy if i want to connect it directly to a RP-SMA female?
@@eesama9883 You need a RP-SMA male panel mount connector, which while rare is existing.
My advice is that you don't use a panel mount and instead buy a regular connector, preferably one that is solder on unless you have crimpers.
Then solder the coax to the connector and to the antenna, giving you a sort of a "pigtail" that's quite short but has several advantages, including better articulation of the wifi adapter and the cheaper price instead of the male RP-SMA connector.
But feel free to try both, only the regular connectors are like 10 pieces for $5 and panel mount are like 1-2 for $5.
@@lazar2175 Sorry, I'm very confused here. So, antenna n-type female panel-mount connector coaxial cable RP-SMA male connector?
Edit: I understand what you're saying now, but don't most of the TV coaxial cables will cause some loss? The recommended LMR-400 coax is so expensive.
@@eesama9883 Err, go to the aliexpress, the 5m of the coax is under $10. Also, using the adapters is not the smartest thing, since god knows how they are engineered so there my be impedance mismatching or other things that could cause big losses.
Remember a pretty important rule in RF, especially microwave:
No adapters and sharp turns unless absolutely necessary.
Every adapter will reduce your signal by about 1db, some will more and some less.
So. Buy a panel mount RP-SMA and use a RP-SMA to RP-SMA cable.
Or desolder your RP-SMA connector and solder a regular SMA connector, those are a bit more common.
que ganancia tiene esta antena ??
спасибо)))
i dont understand why that is not a short
What design software do you use?
+James Storms I don't use any but I do sometimes use simulation programs but not often. Its much better to build prototypes and test them..
How it would work with isolated reflector please? I saw antenna without connector, reflector is isolated and cable is joined to quads directly: czcams.com/video/HwTBZ6vXigc/video.html
Yes, I'd be surprised if they were fit for human consumption, they smell like cat food to me.