Where do I buy a 8dBi patch?

[AndrésMtnez]

I´m still using the standard 3dBi whip, but I want a better one that doesn´t limit too much the field where I can fly.


Where can I buy a good and cheap patch?


I´m using 2,4 200mw tx from Black Widow AV



Andres

[AndrésMtnez]

Deleted

[typicalaimster]

Where can I buy a good and cheap patch?


Hyperlink Tech is the labeled OEM for BW's circular patch antenna..

http://www.hyperlinktech.com/web/hg2409pc.php

Hyperlink has a sister company for orders under $100. They are about a dollar cheaper on almost everything. I've ordered quite a few 2.4 WiFi antennas from them over the past month.

http://sharperconcepts.zoovy.com/category/24ghzantennas.patch/

--Scott

[AndrésMtnez]

Many thanks :)


Excuse me, but I´m a FPV newby from one month ago and don´t understand what´s the difference between circular patch, flat patch, left hand... :confused:


What would be the correct for me?


Andrés

[typicalaimster]

Hey it's cool we've all been there. I know someone will correct me.. I believe the circle patch vs square patch is just personal preference. Some companies want to hide their antennas so they will make it look like a smoke detector.

As far as polarization goes.. That's how the radio signal is traveling down from the transmitter. Wikipedia has more info on this..

http://en.wikipedia.org/wiki/Polarization

-- And --

http://en.wikipedia.org/wiki/Circular_polarization

If you search around on RC Groups (http://www.google.com/custom?q=black+widow+polarization&sa=Go&cof=GALT%3A%23008000%3BGL%3A1%3BDIV%3A%23336699%3B VLC%3A663399%3BAH%3Acenter%3BBGC%3AFFFFFF%3BLBGC%3 A336699%3BALC%3A0000FF%3BLC%3A0000FF%3BT%3A000000% 3BGFNT%3A0000FF%3BGIMP%3A0000FF%3BFORID%3A1%3B&domains=www.rcgroups.com&safe=strict&sitesearch=www.rcgroups.com&client=pub-3653278693006306&forid=1) a bit you can see a few discussions were spawned about antennas.

My Black Widow antenna is Hyperlink model HG2409PCL meaning left hand polarization. Please note that the antenna connectors for Black Widow are RP-SMA or Reverse Polarity - SMA connector. Most of the Antennas on Hyperlink are sold with an "N-Female Connector". The RP-SMA connector is a special order and costs a bit more.

[AnthonyRC]

...Please note that the antenna connectors for Black Widow are RP-SMA or Reverse Polarity - SMA connector. Most of the Antennas on Hyperlink are sold with an "N-Female Connector". The RP-SMA connector is a special order and costs a bit more.

Are you sure that the Black Widow antenna connectors are RP-SMA?, or just regular SMA?

[typicalaimster]

I'll admit I could be wrong since I'm at work typing this up. I'll double check when I get home.

[Kilrah]

Regular SMA.

[typicalaimster]

Cool, thanks for the update.. I'm stuck here for another 2 hours

[AndrésMtnez]

Hi again,


Looking for SMA connectors for building the GP Patch described on Rc-Cam I found a 5dBi omnidirectional antenna in the computer section of a store, and I couldn´t resist the tentation, it was 10,90€ :p


It´s labeled how SMA connector, but it hasn´t the internal pin that have the standard whip. It´s like both the rx and antenna are female, but the thread is ok, so I wonder if anyone of theese is RP-SMA :confused:

I have used a dressmaking pin wich fits perfectly to join them, but couldn´t test it correctly because there was a lot of fog and I only could go away 200-300m in my height to do not get lost on the fog.


What of them is SMA and RP-SMA?

[typicalaimster]

Sma

[AndrésMtnez]

Sma


What of them? :confused:

[Kilrah]

All the video gear = SMA
All the WiFi gear = RP-SMA

Easy :p

[AndrésMtnez]

Many thanks :)




Andres