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In Quadcopters / Triple Feed Patch antenna:

Maarten Baert

Administrator

Comment #1: Tue, 13 Feb 2018, 1:29 (GMT+1, DST)

Quote


Quote: Timkostka

Can I remove the 4 holes on this without affecting the performance?

Any guesses on how the performance would change if I made the bottom PCB 57.5mm in diameter instead of 60mm? (to fit 2 into a 10x10cm panel)

The mounting holes have no impact on performance. Changing the diameter has a small effect on the directivity, but 2.5mm won't make a significant difference.

In Quadcopters / Pagoda antenna:

Maarten Baert

Administrator

Comment #2: Tue, 13 Feb 2018, 1:21 (GMT+1, DST)

Quote


Quote: Danrei

Hello,
may I ask what epsilon r (dielectric constant) you used for your design manufactured by elecrow?
Thanks!

I use an anisotropic material model. The value in simulation is tuned to compensate for various effects in order to make simulation match reality (i.e. VNA measurements), so it's not reliable. The most reliable values I have are:
- permittivity = (4.832, 4.832, 4.355)
- loss tangent = (0.02, 0.02, 0.025)
If you really need accurate material specs, you should either use a real RF material or order a test PCB to characterize it yourself :).

In Quadcopters / Triple Feed Patch antenna:

Timkostka

Comment #3: Sun, 4 Feb 2018, 18:33 (GMT+1, DST)

Quote


Can I remove the 4 holes on this without affecting the performance?

Any guesses on how the performance would change if I made the bottom PCB 57.5mm in diameter instead of 60mm? (to fit 2 into a 10x10cm panel)

Last modified: Sun, 4 Feb 2018, 22:15 (GMT+1, DST)

In Quadcopters / Antennas:

Danrei

Comment #4: Sun, 4 Feb 2018, 17:32 (GMT+1, DST)

Quote


Hello,
What epsilon r - value are you using for designs manufactured by elecrow?
Thank you!

In Quadcopters / Pagoda antenna:

Danrei

Comment #5: Tue, 30 Jan 2018, 5:26 (GMT+1, DST)

Quote


Hello,
may I ask what epsilon r (dielectric constant) you used for your design manufactured by elecrow?
Thanks!

In Quadcopters / Antennas:

W2hro

Comment #6: Tue, 30 Jan 2018, 4:52 (GMT+1, DST)

Quote


Have you designed an RHCP / LHCP antenna for L-Band frequency?

This patch antenna design would be useful as a feed for L-band satellite dishes.

Contact info - w2hro.fn20@gmail.com

In SimpleScreenRecorder / Troubleshooting:

Philipc

Comment #7: Sun, 28 Jan 2018, 23:49 (GMT+1, DST)

Quote


Quote: Philipc

...Can you suggest parameters in the "Custom options:" box?...

Ah, do I ever feel sheepish. All it takes is to add "threads=16" in the custom options. Feel free to delete this and the above message.

Last modified: Sun, 28 Jan 2018, 23:50 (GMT+1, DST)

In SimpleScreenRecorder / Troubleshooting:

Philipc

Comment #8: Sun, 28 Jan 2018, 20:15 (GMT+1, DST)

Quote


Hello,

I've been using SSR for about 5 years. Nowadays I have a dual-Xeon (E5-2696 v3) workstation, each CPU has 18 physical cores, 36 virtual cores, so (x 2 cpu's =) 72 virtual cores total.

I've been trying to record a streaming video using libx265, but I get the error

[BaseEncoder::Init] Error: Can't open codec!
[PageRecord::StartOutput] Error: Something went wrong during initialization

The log shows (omitting escape codes):

[libx265 @ 0x558306c511c0] Application has requested 72 threads. Using a thread count greater than 16 is not recommended.
x265 [info]: HEVC encoder version 2.4
x265 [info]: build info [Linux][GCC 7.1.1][64 bit] 8bit
x265 [info]: using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2
x265 [error]: frameNumThreads (--frame-threads) must be [0 .. X265_MAX_FRAME_THREADS)
[libx265 @ 0x558306c511c0] Cannot open libx265 encoder.
[BaseEncoder::Init] Error: Can't open codec!
[PageRecord::StartOutput] Error: Something went wrong during initialization.

Can you suggest parameters in the "Custom options:" box? I've already tried

frame-threads=16:lookahead-threads=8

without success.

Thanks much,
Philip

In Game Maker DLLs / Http Dll 2:

Maarten Baert

Administrator

Comment #9: Mon, 8 Jan 2018, 0:46 (GMT+1, DST)

Quote


Quote: Chip

this is for P2P - based on the master server.
under the control of the master server - in order to "punched" the NAT, it is necessary for the server (player) to send a packet to the client (player), and client (player) send to the server (player), they will send each other packets, and NAT is punched! like UDP

UDP hole punching is a lot more complicated than that. You still need an intermediate server to initialize the connection. Port numbers behind the NAT do not necessarily match the one you set. You need an intermediate server without NAT to receive the initial packet, get the IP and port with udpsocket_get_last_address and udpsocket_get_last_port, and send this information to the other side. Everything you need already exists, this does not require any new functions.

TCP hole punching is much harder. It's not guaranteed to work at all, it depends on the type of NAT you use. It's non-standard behaviour. In order to get the ports to work, you either need to create a new connection on an existing port (which breaks the TCP standard and probably will fail with many NATs) or you need to pray that the NAT has preserved the port number (very unreliable) or you need to brute-force the port numbers (very slow, and since it looks like a port scan or DDoS attach, it may trigger firewalls).

My advice: just get a real server and don't worry about all this stuff. A VPS with a dedicated static IP is very cheap and can even be rented at hourly rates.

Last modified: Mon, 8 Jan 2018, 0:58 (GMT+1, DST)

In Quadcopters / Triple Feed Patch antenna:

Race412

Comment #10: Sat, 6 Jan 2018, 1:50 (GMT+1, DST)

Quote


Quote: Maarten Baert
Quote: Race412

Hello Maarten,
We also have the triple feed patch antenna available on our store. Could you add our store to the table as well?

https://race412.com/product/triple-feed-patch/
$15
SMA and RPSMA

Thank You
Race 412

Can you specify which connectors you are using on the PCB as well as the coax? Is the PCB connector also RP-SMA or just one of the connectors on the coax?

Yes, sorry for the long response time, we make the plate exactly the way you do for the connectors, but the coax can be made for either an SMA or RPSMA receiver.

Edit: typo

Last modified: Sat, 6 Jan 2018, 1:51 (GMT+1, DST)

In Game Maker DLLs / Http Dll 2:

Chip

Comment #11: Sun, 24 Dec 2017, 23:51 (GMT+1, DST)

Quote


Quote: Maarten Baert
Quote: Chip

Hi Maarten Baert!
Is it possible to add a some function to the TCP protocol for port definition?
This would be useful for circumventing NAT using the TCP

What exactly do you mean, and how do you expect that it will circumvent NAT?

this is for P2P - based on the master server.
under the control of the master server - in order to "punched" the NAT, it is necessary for the server (player) to send a packet to the client (player), and client (player) send to the server (player), they will send each other packets, and NAT is punched! like UDP

In Game Maker DLLs / Http Dll 2:

Maarten Baert

Administrator

Comment #12: Sat, 23 Dec 2017, 17:37 (GMT+1, DST)

Quote


Quote: Chip

Hi Maarten Baert!
Is it possible to add a some function to the TCP protocol for port definition?
This would be useful for circumventing NAT using the TCP

What exactly do you mean, and how do you expect that it will circumvent NAT?

In Game Maker DLLs / Http Dll 2:

Chip

Comment #13: Fri, 22 Dec 2017, 22:23 (GMT+1, DST)

Quote


Hi Maarten Baert!
Is it possible to add a some function to the TCP protocol for port definition?
This would be useful for circumventing NAT using the TCP

In Quadcopters / Pagoda antenna:

Maarten Baert

Administrator

Comment #14: Mon, 11 Dec 2017, 1:48 (GMT+1, DST)

Quote


Quote: Lattonna

Sorry for being obtrusive - but we could wait, when you ll have time, becouze we really need it, and we gonna pay your time and work. Or if it is possible - we can buy re - tuning technology for antennas , if you wish

You would have to wait several years for me to complete my PhD first, because I'm not allowed to accept any side-jobs in the meantime. It's part of the contract.

In Quadcopters / Pagoda antenna:

Lattonna

Comment #15: Wed, 6 Dec 2017, 10:01 (GMT+1, DST)

Quote


Quote: Maarten Baert
Quote: Lattonna

hello, have question you about pagoda antennas - we bought one antenna, and now want to ask about some help - ask you to calculate configuration for this antenna with band frequency 2.4 - 2.5 Hhz, and how much it will cost ??

Several people have asked me to make a version for 2.45GHz, it's possible but it will be more than twice as large. Keeping the PCBs parallel to each other without extra support is going to be a problem. Cost is not much higher than the 5.8GHz Pagoda since most of the cost is the assembly, not the PCBs.

In any case, I don't have time to work on this right now. Re-tuning is harder than it looks, you can't just scale all the dimensions and expect it to work, because the PCB thickness and coax diameter stays the same.

Sorry for being obtrusive - but we could wait, when you ll have time, becouze we really need it, and we gonna pay your time and work. Or if it is possible - we can buy re - tuning technology for antennas , if you wish

In Quadcopters / Pagoda antenna:

Maarten Baert

Administrator

Comment #16: Wed, 6 Dec 2017, 1:13 (GMT+1, DST)

Quote


Quote: Lattonna

hello, have question you about pagoda antennas - we bought one antenna, and now want to ask about some help - ask you to calculate configuration for this antenna with band frequency 2.4 - 2.5 Hhz, and how much it will cost ??

Several people have asked me to make a version for 2.45GHz, it's possible but it will be more than twice as large. Keeping the PCBs parallel to each other without extra support is going to be a problem. Cost is not much higher than the 5.8GHz Pagoda since most of the cost is the assembly, not the PCBs.

In any case, I don't have time to work on this right now. Re-tuning is harder than it looks, you can't just scale all the dimensions and expect it to work, because the PCB thickness and coax diameter stays the same.

Last modified: Wed, 6 Dec 2017, 1:15 (GMT+1, DST)

In Quadcopters / Triple Feed Patch antenna:

Maarten Baert

Administrator

Comment #17: Wed, 6 Dec 2017, 1:10 (GMT+1, DST)

Quote


Quote: Race412

Hello Maarten,
We also have the triple feed patch antenna available on our store. Could you add our store to the table as well?

https://race412.com/product/triple-feed-patch/
$15
SMA and RPSMA

Thank You
Race 412

Can you specify which connectors you are using on the PCB as well as the coax? Is the PCB connector also RP-SMA or just one of the connectors on the coax?

In Quadcopters / Triple Feed Patch antenna:

Race412

Comment #18: Tue, 5 Dec 2017, 19:26 (GMT+1, DST)

Quote


Hello Maarten,
We also have the triple feed patch antenna available on our store. Could you add our store to the table as well?

https://race412.com/product/triple-feed-patch/
$15
SMA and RPSMA

Thank You
Race 412

In Quadcopters / Pagoda antenna:

Lattonna

Comment #19: Tue, 5 Dec 2017, 13:32 (GMT+1, DST)

Quote


hello, have question you about pagoda antennas - we bought one antenna, and now want to ask about some help - ask you to calculate configuration for this antenna with band frequency 2.4 - 2.5 Hhz, and how much it will cost ??

In Quadcopters / Triple Feed Patch antenna:

Actuna

Comment #20: Fri, 1 Dec 2017, 15:12 (GMT+1, DST)

Quote


Quote: Actuna

We produced a modified version of the Triple Feed Patch (hybrid) antenna - a diameter of 45mm. We are now finishing the tests of this antenna, the results are positive.

https://www.thingiverse.com/thing:2682348

In Quadcopters / Pagoda antenna:

Maarten Baert

Administrator

Comment #21: Wed, 29 Nov 2017, 4:00 (GMT+1, DST)

Quote


Quote: Kitchenman

trying to build a kit antenna. have question - RP-SMA male all my kits come with the pin. how do I get a socket pin? thanks

You order RP-SMA female ;).

In Quadcopters / Triple Feed Patch antenna:

Maarten Baert

Administrator

Comment #22: Wed, 29 Nov 2017, 3:34 (GMT+1, DST)

Quote


Quote: Andymidtf

Hi Maarten,

I am ordering from Seeed, there the PCB size can be much smaller - from the .dxf files I see part one is 24.9mm wide, and part 2 is 60.0mm wide - any reason not to use these sizes in the order page?
Also, neither Elecrow or Seeed provide the Panalizing option in the web form - any idea what will happen if this is not included in the order? I should get in contact with them for a personal quote?

Thanks very much!

Andy
:-)

PD do you have a paypal or accept bitcoin (better some other vcoin with todays tx rates!), even thou you offer these open source, I really think you deserve some renumeration for your excellent work!

If the manufacturer asks for the exact size, then you should do that. Elecrow doesn't do this though. If they don't offer panelization, then don't worry about it. Also, I don't accept donations, but thanks anyway :).

Quote: Prxbl

Since male SMA terminators are hard to find can I use a 49.9ohm resistor to terminate one of the sides permanently?

I plan to remove the SMA connector and just solder an SMD resistor between signal and ground in the place of the old connector.

You should just get the LHCP or RHCP variant instead of the hybrid if that is what you want. But yes, you can do this. It won't be perfect because the footprint is designed to cancel out some of the mismatch of the connector, but it will be pretty close.

Last modified: Wed, 29 Nov 2017, 3:37 (GMT+1, DST)

In Quadcopters / Triple Feed Patch antenna:

Prxbl

Comment #23: Mon, 27 Nov 2017, 13:06 (GMT+1, DST)

Quote


Since male SMA terminators are hard to find can I use a 49.9ohm resistor to terminate one of the sides permanently?

I plan to remove the SMA connector and just solder an SMD resistor between signal and ground in the place of the old connector.

In Quadcopters / Triple Feed Patch antenna:

Actuna

Comment #24: Sun, 26 Nov 2017, 22:03 (GMT+1, DST)

Quote


Hello ...

I would like to inform you about the production and sale of the Triple Feed Patch (hybrid):

Manufacturer: ACTUNA

URL: https://actuna.com/Antenna-Triple-Feed-Patch-1-5-8GHz-RHCP-LHCP-p13210

Price: 9,85 $

- hybrid
- SMA (female)
- SMA and RP-SMA - Includes semi-rigid coax (SMA male – SMA male or SMA male - RP-SMA female).

Notes: Each antenna is measured individually and gets its own parameters tab. SMA and RP-SMA - Includes semi-rigid coax (SMA male – SMA male or SMA male - RP-SMA female). Fast delivery in the EU (3-10 days).

Contacts: actuna@actuna.pl

PS:

We produced a modified version of the Triple Feed Patch (hybrid) antenna - a diameter of 45mm. We are now finishing the tests of this antenna, the results are positive.

Last modified: Sun, 26 Nov 2017, 22:05 (GMT+1, DST)

In Quadcopters / Pagoda antenna:

Actuna

Comment #25: Sun, 26 Nov 2017, 21:56 (GMT+1, DST)

Quote


Hello ...

I would like to inform you about the production and sale of the pagoda antenna 2B:

Manufacturer: ACTUNA

URL: https://www.actuna.com/category/?q=pagoda

Price: 6,90 $

- RHCP
- LHCP
- SMA
- RP-SMA

Notes: Each antenna is measured individually and gets its own parameters tab. Straight or 90-degree connector available. Three different lengths available. Fast delivery in the EU (3-10 days).

Contacts: actuna@actuna.pl

Last modified: Sun, 26 Nov 2017, 21:56 (GMT+1, DST)

In Quadcopters / Pagoda antenna:

Kitchenman

Comment #26: Sat, 25 Nov 2017, 20:16 (GMT+1, DST)

Quote


trying to build a kit antenna. have question - RP-SMA male all my kits come with the pin. how do I get a socket pin? thanks

In Quadcopters / Triple Feed Patch antenna:

Andymidtf

Comment #27: Thu, 16 Nov 2017, 20:41 (GMT+1, DST)

Quote


Quote: Maarten Baert

The correct settings are:

- PCB Size: "5cm Max * 5cm Max" (part1) / "10cm Max * 10cm Max" (part2)
...
- Panelizing: "Single PCB with milling"

Hi Maarten,

I am ordering from Seeed, there the PCB size can be much smaller - from the .dxf files I see part one is 24.9mm wide, and part 2 is 60.0mm wide - any reason not to use these sizes in the order page?
Also, neither Elecrow or Seeed provide the Panalizing option in the web form - any idea what will happen if this is not included in the order? I should get in contact with them for a personal quote?

Thanks very much!

Andy
:-)

PD do you have a paypal or accept bitcoin (better some other vcoin with todays tx rates!), even thou you offer these open source, I really think you deserve some renumeration for your excellent work!

In Model Creator / Documentation:

Dragonite

Comment #28: Fri, 10 Nov 2017, 14:52 (GMT+1, DST)

Quote


I'm using it for stuff like this: https://www.youtube.com/watch?v=8ajRno-6grE

but I'm curious as to what other people are doing too, as far as I know I'm one of the only people who've stuck with 3D in GMS for this long :P

Last modified: Fri, 10 Nov 2017, 14:52 (GMT+1, DST)

In Quadcopters / Pagoda antenna:

Dontpeek

Comment #29: Mon, 6 Nov 2017, 14:16 (GMT+1, DST)

Quote


Quote: Maarten Baert

There are some problems with the use of thinner coax. It requires significant re-tuning, I haven't really looked into it seriously.

I think it would be amazing if you could get that working. Everything is trending towards small and light it seems and going from sma to a ufl antenna is a huge weight savings. For smaller quads like the 2" class you can't even use a full size sma antenna because of the weight. Right now the only real option is the luminier axii which is a ufl antenna that only weighs a couple grams.

In Quadcopters / Triple Feed Patch antenna:

Maarten Baert

Administrator

Comment #30: Sat, 4 Nov 2017, 3:43 (GMT+1, DST)

Quote


Quote: Ryan

What is center frequency? I run my vtx on channel 5658. Am I off center? Is center as close to 5800 as possible? Does it matter how the patch sits on the goggles ? Is there a up or down/top or bottom of the patch?

The center frequency is 5.8 GHz. As you can see in the specs, the bandwidth is 660 MHz (5.47 – 6.13 GHz), so 5.658 GHz will work fine.

There is no top/bottom, just point the patch in the direction of the transmitter and you are fine.

Quote: Vlado

Would it work well if I solder RG402 cable directly to the PCB? How about soldering rx5808 video rx module on the antenna? :D

That won't work well with the current PCB layout. The matching will be bad. The layout you see now is specifically tuned to match well to those vertical SMA connectors.