So far you got 152 likes on Twitter....
When that is an indication of the interest in Es'hail-2... it will be very busy 
20W WiFi Booster module for 2.4 GHz
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Danke für Eure Ausführungen.
73 Hans-Jochen DK1MG
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Hi...I didn't find any ham radio 13cm power amplifier kit, it seems that some existed in the past, but I didn't find one available today.Also, it doses not seems that it exists any chip with an amplifier built in, like the MITSUBISHI & TOSHIBA module, that exist for VHF/UHF/1.2Ghz
It's a quite easy way to DIY an amplifier.
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The designs and circuit boards for LDMOS amplifiers for 2.4 GHz aren't that much more complicated than designs around those hybrid modules...
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Hi...I didn't find any ham radio 13cm power amplifier kit, it seems that some existed in the past, but I didn't find one available today.Also, it doses not seems that it exists any chip with an amplifier built in, like the MITSUBISHI & TOSHIBA module, that exist for VHF/UHF/1.2Ghz
It's a quite easy way to DIY an amplifier.
A possible solution for a DIY PA is the MW7IC2725NR1 : Modules are cheap from China, delivery about 3 weeks. Gain about 27dB , its a linear chip design for WIMAX with 5W Output, P1dB =20W. I have redesigned the NXP data sheet test circuit to FR4 material and waiting currently for the boards for building it.
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To freely translate a Dutch saying ("Vers van de pers!") : Fresh from the press!
Ampleon press release of a 500W 2.4 - 2.5 GHz LDMOS. -
Here is a project from F6BVA based on this cheap module :
http://f6bva.pagesperso-orange…0MW7IC2725N%20complet.pdf
http://f6bva.pagesperso-orange…e/Satellite/Satellite.htm
It would be nice to design a pcb with 2 or 4 modules for datv
73's from Michaël - La Louvière - Belgium
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DH2VA Hallo Achim,
I have the 2,46GHz PA you described above on my table.
IN and OUT are SMA female connectors.
On the identification plate 24V. You wrote 12V 5A ??
On the small identification plate:
Freq, RF IN, P OUT, Gain same as on yours?
Inside identical with yours?
The opening with 4 threads near Output you have an idea what's the use of it?
73 Hans-Jochen -
Hi Hans-Jochen,
I have the same PA, and although it states 24V on the casing, the power supply that comes with it is 12V 5A. According to DH2VA there is an internal DC/DC converter to 28 V so it appears to be quite flexible with respect to input voltage.
Mine also has ordinary SMA female connectors for input / output. No reverse polarity issues
The square near the output appears to be a position where a circulator / isolator can be placed, which would protect the PA in case of a mismatch. I am using mine with an external circulator + dummy load on the "isolated" port just to be safe.
Up till now, it has performed very very well, I run it at about 10W into a 24 turn RHCP helix, and am about as strong as the upper beacon, so good enough hi
Many thanks to DH2VA for spotting this one and making the community aware! It is not a cheap unit, but certainly delivers and appears good quality.
73,
Wouter Jan PE4WJ
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Hi all.
I wonder if anyone has found a linear wifi module around 4W ? For portable operation this seems to be enough with a modest dish.
73 David -
Hi David,
I have heard people talk about this unit:
https://www.ebay.com/sch/i.htm…smitter+Receiver&_sacat=0
No experience with it myself though.
73,
Wouter Jan PE4WJ
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Hi David,
I just tested today this WLAN booster (claimed 8W) with a 25 Ele Yagi and I had a readable signal via the transponder. Thus seems to work.
https://www.ebay.de/itm/EP-AB0…YwAAOSwwcRaeaEu:rk:1:pf:0
There are also 4W versions of this type.
73 de Johannes JN58xx
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David G0MRF here is a 4watt version you can buy this complete or PCBA only:
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My fear is the following. Last week we had a club member bringing a 8W version. Exactly looking like the link from DL5RDI's post. We injected 0 dBm and got 15 dBm out.
When we injected more .. 15 dBm output .. when we injected less .. zero output.
We blamed the measuring equipment first ... but after double verification the equipment was okay. So we labelled the PA as 'bad luck' ...
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Other suppliers sell the same design as 4 Watt versions!!!
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Hi David,
I have heard people talk about this unit:
https://www.ebay.com/sch/i.htm…smitter+Receiver&_sacat=0
No experience with it myself though.
73,
Wouter Jan PE4WJ
this modules are meant for FPV and I guess, because they handle FM signals, they are not "linear" amplifiers.
more over they use REVERSE sma connectors, thus you need adaptors (more losses) or you will not be able to connect your devices!
Claudio
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DL5RDI FPV (First Person View) is not the same as WLAN. It is the downlinking of video from drones which can e.g. be used while flying the drone. Of course in theory one could use WLAN and digital video for that, but it induces a delay which would make the drone difficult to control. So in this field of use, analog video with FM modulation is still often used. And of course, an amplifier for that does not need linearity. So you should always be careful not to buy FPV equipment when you want it to use for purposes where linearity is required.
W.r.t. the reverse-SMA connectors I am less pessimistic. Usually you need a short pigtail between e.g. a module box and an N connector on the outside housing, and you can order the correct type (from reverse-SMA to normal N) and use it without any adapter. This can also be semirigid.
But of course it is often easy to change the connectors anyway.
