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Mark Harris

2.4ghz booster work on video Rx?

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http://www.repotec.com/default.asp?pagenam...P_WR1102G_5.htm

I'm looking at the 500mW version of this to put onto a 2.4ghz Hong Kong video reciever to try and increase range. Would this work do you think? I get it wholesale from my supplier at AUD$129.73ex so its not terribly expensive.

Would it also work with a patch antenna?

Would any of these work? I also get D-link stuff cheap :D

http://www.dlink.com.au/Products.aspx?Sec=...Sub2=38&PID=203

http://www.dlink.com.au/Products.aspx?Sec=...Sub2=47&PID=209 (too directional?)

http://www.dlink.com.au/Products.aspx?Sec=...Sub2=47&PID=206

http://www.dlink.com.au/Products.aspx?Sec=...Sub2=38&PID=202 (really cheap)

I realise the ranges stated on the page are completely irrelevant.. just wondering if they would be applicable to wireless video and how you think the performance would pan out using just a standard omni on the tx which is onboard.

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Do you really think you want to put such a heavy and bulky thing in addition to your TX?? You'd have a new transmitter of the same power for the same price...

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Would i need this on the TX though? i was planning on putting it just on the rx.. Not sure how this all works with the video. I know on WiFi you need it on both ends.

with the 500mW booster and 14db patch you'd have 40.99dB of gain thats a heck of a lot!

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That thing consists of a transmit amplifier with a 17dB gain and max output of 500mW, and a receive amplifier with 10dB gain. That's the one that you will use, the transmit one will be useless to you.

I'm not sure if having to carry 2 more boxes (there is a DC injector in addition to the actual amplifier) plus a 5V power supply is worth it, adding also the losses induced by the 3 coax cables... :unsure:

Theses things are indeed designed for 2-way communication, each end having a TX and RX amplification.

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I think i'm going to get one of these for on the plane:

http://www.dlink.com.au/Products.aspx?Sec=...Sub2=38&PID=198

and one of these for the receiver

http://www.dlink.com.au/Products.aspx?Sec=...Sub2=47&PID=206

If i put the 500mW booster on the reciever with anything more than a 10dBi antenna i'll be over the legal limit in AU. However once you take into consideration the power already there.. i'll be quite a bit over hehe. So i think i'll stick with the 14dBi.

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Be careful, WLAN antennas usually don't have the same connectors as our video gear.

We use SMA, they use RP-SMA. The thread is the same, but they swapped the pin and the hole, which means you can't connect them together. You'd certainly need to find an adapter.

Regsrding your antenna choice, remember the receiver doesn't transmit! You can put anything you want there, there is no limit. There is one for transmitting, the antenna gain affecting radiated power.

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Be careful, WLAN antennas usually don't have the same connectors as our video gear.

We use SMA, they use RP-SMA. The thread is the same, but they swapped the pin and the hole, which means you can't connect them together. You'd certainly need to find an adapter.

Wow, i never noticed that before.. just saw they had the same looking connection. Surely i can just cut the plug off and switch it over?

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On the onboard antenna you were pointing to that will be a bit difficult.

Changing the plug on a coax cable involves very careful stripping and soldering. Connectors are rather expensive too.

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I add a small wire(resistor lead ) between my RP-sma on my antenna and the sma connector on the receiver.

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Would you be able to take a photo Denis?

Do you mean to put a wire in the hole in the middle of the connector?

http://rris.com.au/photos/misc/images/180/...0/original.aspx

I just stole the wireless antenna off one of my co-workers PC's and took a photo.. sorry it's a bit blurry the camera focused on the desk instead. Forum wont let me use that extension as a picture heh.. it is though if you click it.

To make this SMA i would just put a wire in the hole with the gold coloured outline and white insulation surrounding it?

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To make this SMA i would just put a wire in the hole with the gold coloured outline and white insulation surrounding it?

Yes exactly, this is what I've done. Be carefull not using a bigger lead than the hole, you will dammaged it.

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I ended up going to that site and buying a patch, dipole and cable + sma-rpsma connector :) Managed to score it all half price some how.. So i'm pretty happy.

That d-link stuff is *really* expensive, guess you pay for the name.

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