RC India

RC Equipments => Radios and Receivers => Topic started by: Adityaamg on March 21, 2014, 08:56:38 AM

Title: broken Frsky module antenna
Post by: Adityaamg on March 21, 2014, 08:56:38 AM
I am not sure whether my antenna is broken or it is meant to be like this. Please help me out  :headscratch: :help:
Is it a friction fit and the coaxial wire does not touch the metal attached to the sma connector?
Very confused. I just noticed that there was a gap in between them.
Title: Re: broken Frsky module antenna
Post by: Adityaamg on March 21, 2014, 08:59:14 AM
The 1st picture shows the gap.
Title: Re: broken Frsky module antenna
Post by: praveen on March 21, 2014, 10:00:30 AM
Yes , it has broken! better to not use that one again!
use new 2.4Ghz 3 dBi rubber ducky antenna, i think its available in electronic shops or Ebay.
Title: Re: broken Frsky module antenna
Post by: Adityaamg on March 21, 2014, 10:10:01 AM
Oh god!
Thank you sir!
Title: Re: broken Frsky module antenna
Post by: K K Iyer on March 21, 2014, 11:10:49 AM
Looks like you dismantled it at the WRONG JOINT.
Tx will still work, but NOT SAFE TO FLY.
Title: Re: broken Frsky module antenna
Post by: rcparkjets on March 21, 2014, 12:19:55 PM
Sorry, My question is slightly off topic.
I would like to know in which transmitter this DJT or DFT modules are used and for what purpose ?
Title: Re: broken Frsky module antenna
Post by: K K Iyer on March 21, 2014, 12:26:27 PM
@rcparkjets
FrSky DFT module in my Hitec Optic 6.
Replaced original 72mhz module to convert to 2.4ghz.
DFT plugs right in without any mods.
Antenna is however at the bottom, haha
(DFT for Futaba, Hitec, DJT for JR)
Title: Re: broken Frsky module antenna
Post by: rcparkjets on March 21, 2014, 12:30:39 PM
Thank you sir.
Is it for the purpose to avoid Futaba Transmitter to Futaba Receiver ?
So, we us Futaba Transmitter+Frsky DFT+Frsky receiver.
What is the advantage ?
Sorry for my dumb questions.
Title: Re: broken Frsky module antenna
Post by: manojswizera on March 21, 2014, 05:23:10 PM
Quote from: K K Iyer on March 21, 2014, 12:26:27 PM
Antenna is however at the bottom, haha
(DFT for Futaba, Hitec, DJT for JR)


Upside down, sir that makes some difference in range ?
may be some issues in handling the TX.
Title: Re: broken Frsky module antenna
Post by: K K Iyer on March 21, 2014, 05:35:05 PM
@manojswizera
No range problem in a year of use.
Just have to move the antenna a little outward with the little finger...

I remember seeing a video of modifying the case to move the antenna to the top. Don't think it worth the effort.
Title: Re: broken Frsky module antenna
Post by: Adityaamg on March 21, 2014, 05:36:12 PM
will this work ?

http://www.ebay.co.uk/itm/2-4-GHz-3dBi-SMA-M-WIFI-Antenna-Tilt-and-swivel-design-/301126350765?_trksid=p2054897.l4276 (http://www.ebay.co.uk/itm/2-4-GHz-3dBi-SMA-M-WIFI-Antenna-Tilt-and-swivel-design-/301126350765?_trksid=p2054897.l4276)

is the connectors SMA or RP-SMA ?
Title: Re: broken Frsky module antenna
Post by: K K Iyer on March 21, 2014, 05:39:03 PM
@adityaamg
If you look closely, you'll find that the original i'm using looks just like that.
Title: Re: broken Frsky module antenna
Post by: Adityaamg on March 21, 2014, 05:43:47 PM
should i buy it then ?
Title: Re: broken Frsky module antenna
Post by: Adityaamg on March 21, 2014, 05:48:02 PM
one more link
www.ebay.co.uk/itm/2-4-GHz-3dBi-SMA-M-WIFI-Antenna-Tilt-and-swivel-design-/301126350765?_trksid=p2054897.l4276 (//http://)
Title: Re: broken Frsky module antenna
Post by: K K Iyer on March 21, 2014, 05:52:02 PM
I don't know enough about replacement antennas to answer that. Sorry.
You'll have to ask some of the electronics gurus on the forum.
Title: Re: broken Frsky module antenna
Post by: SideWinder on March 21, 2014, 06:02:24 PM
Aditya you would need antenna with an rp-sma connector, the one you have selected has an sma connector
Something like this

http://www.ebay.co.uk/itm/REPLACEMENT-WIFI-WIRELESS-ROUTER-AERIAL-ANTENNA-RP-SMA-/400599110107?pt=UK_Computing_Boosters_Extenders_Antennas&hash=item5d459151db (http://www.ebay.co.uk/itm/REPLACEMENT-WIFI-WIRELESS-ROUTER-AERIAL-ANTENNA-RP-SMA-/400599110107?pt=UK_Computing_Boosters_Extenders_Antennas&hash=item5d459151db)

or

http://www.ebay.co.uk/itm/2dbi-Omni-Directional-WiFi-Wireless-Antenna-Black-2-4ghz-RP-SMA-Connector-/221369030726?pt=UK_Computing_Boosters_Extenders_Antennas&hash=item338a9f5846 (http://www.ebay.co.uk/itm/2dbi-Omni-Directional-WiFi-Wireless-Antenna-Black-2-4ghz-RP-SMA-Connector-/221369030726?pt=UK_Computing_Boosters_Extenders_Antennas&hash=item338a9f5846)

EDIT: On second thought can you put a pic with close up of the connector either on the module or antenna, cannot exactly make out if its sma or rp-sma.
Title: Re: broken Frsky module antenna
Post by: Adityaamg on March 21, 2014, 06:26:48 PM
i thank all of you for your kind support. i ordered an genuine Frsky antenna to eliminate any misunderstanding in choosing the correct antenna. i thought that will be the best idea.