Main Menu

Need help on battery

Started by deepakkshr, January 15, 2013, 10:07:01 AM

Previous topic - Next topic

0 Members and 1 Guest are viewing this topic.

satyagupta

Ok so which antenna do we commonly use with our tx/rx?? SMA or RP-SMA??
one stop for multirotor needs:
www.quadkopters.com

http://www.facebook.com/QuadKopters
https://www.youtube.com/user/QuadKopters
https://www.instagram.com/quadkopters

deepakkshr

if it has nothing to do with signal. u can buy any one of those and in case u need to change, change the adapter  ;D  There are convertors  available SMA female to RP-SMA female, same in male

satyagupta

hmm cool but which one is the commonly used?? with SMA connectors or RP-SMA?
one stop for multirotor needs:
www.quadkopters.com

http://www.facebook.com/QuadKopters
https://www.youtube.com/user/QuadKopters
https://www.instagram.com/quadkopters

satyagupta

And do these differ with cloverleaf antennas??
one stop for multirotor needs:
www.quadkopters.com

http://www.facebook.com/QuadKopters
https://www.youtube.com/user/QuadKopters
https://www.instagram.com/quadkopters

deepakkshr

Generally most FPV Tx/Rx will have normal SMA connectors, whereas wifi applications uses RP-SMA

deepakkshr

i think this is a clover leaf antenna, coz only in cloverleaf u can Right and Left hand circular polarization. I saw some radiation pattern of these antenna. Its really Gud  :)

satyagupta

So cloverleaf antennas or the HK antennas both are same?? no difference? right?
one stop for multirotor needs:
www.quadkopters.com

http://www.facebook.com/QuadKopters
https://www.youtube.com/user/QuadKopters
https://www.instagram.com/quadkopters

deepakkshr

yeah you could see that in the description

Clover (TX) weight: 7.7g
Skew (RX) Weight: 8.6g

These one have  3 lobe and 4 lobe one in each  :)

satyagupta

one stop for multirotor needs:
www.quadkopters.com

http://www.facebook.com/QuadKopters
https://www.youtube.com/user/QuadKopters
https://www.instagram.com/quadkopters

deepakkshr


satyagupta

So i will try to get those antennas in my store, trying to find right supplier now ;)
one stop for multirotor needs:
www.quadkopters.com

http://www.facebook.com/QuadKopters
https://www.youtube.com/user/QuadKopters
https://www.instagram.com/quadkopters

deepakkshr

All the best for ur business  :thumbsup:

Dharmik

Satya bro these antennas are CP(circular polarized), they have ability to reduce multipath signals.
CL = Clover Leaf is for vtx and has 3 lobes
SPW = Skew Planer Wheel is for vrx and has 4 lobes.
If you are planning to stock RC305 setup then RP-SMA antennas will work without any additional connector as said by Deepak.

satyagupta

Hmmm was talking with supplier yesterday man its damn expensive (it is available at the same price as it is on HK) for me to buy just couple and test it. It will be too expensive for buyers and a loss for me. Instead i am not planning to get Clover Leaf antennas as they are not very expensive, so we can use clover leaf antennas for both TX and RX???
one stop for multirotor needs:
www.quadkopters.com

http://www.facebook.com/QuadKopters
https://www.youtube.com/user/QuadKopters
https://www.instagram.com/quadkopters

deepakkshr

Quote from: satyagupta on January 17, 2013, 09:08:00 AM
Instead i am not planning to get Clover Leaf antennas as they are not very expensive, so we can use clover leaf antennas for both TX and RX???

lil confused  ???  :headscratch:

satyagupta

opss i mean

i am planning to get Clover Leaf antennas as they are not very expensive, so we can use clover leaf antennas for both TX and RX??? :giggle: sorry :P
one stop for multirotor needs:
www.quadkopters.com

http://www.facebook.com/QuadKopters
https://www.youtube.com/user/QuadKopters
https://www.instagram.com/quadkopters

deepakkshr

No, cloverleaf antenna are best suited for transmission and it is not for reception. Due to poor reverse polarization reflection pattern it has high loss. You can go for skew planar antennas for reception, it is similar to cloverleaf, oly difference is the lobe. skew planar has 4 lobes positioned at 90 degree apart whereas cloverleaf antennas has 3 lobes at 120 degree apart. There are many site that provide guide for DIY cloverleaf and skew planar antenna  ;D