Model Boat Mayhem

Technical, Techniques, Hints, and Tips => Radio Equipment => Topic started by: petesubman on January 24, 2020, 01:03:16 pm

Title: Frsky antenna replacement
Post by: petesubman on January 24, 2020, 01:03:16 pm

Hi all, through sheer clumseyes I have snapped the antenna off my tx it's a hinged type it's a futaba tx with a v8ht diy module , which antenna do I need , help , regards Pete

Title: Re: Frsky antenna replacement
Post by: C-3PO on January 24, 2020, 03:08:49 pm

Think it's this one

https://coolcomponents.co.uk/products/antenna-2-4ghz-duck-rp-sma?_pos=2&_sid=048c37889&_ss=r

Is the socket on the end of the cable male?

C-3PO

Title: Re: Frsky antenna replacement
Post by: petesubman on January 25, 2020, 07:45:48 am

Hi c3p0 , not sure , the antenna mount is into the case with a grey running into it , is a push fit ,going g to have to take a pic,regards Pete

Title: Re: Frsky antenna replacement
Post by: C-3PO on January 25, 2020, 09:29:39 am

Hi Pete,
I think the brass fitting on the end of the v8ht transmitter module will be an RP SMA Female (oddly the brass fitting with the pin in the centre)
(https://modelboatmayhemimages.co.uk/images/2020/01/25/111111.jpg)
(https://modelboatmayhemimages.co.uk/images/2020/01/25/2222.jpg)
C-3PO

Title: Re: Frsky antenna replacement
Post by: petesubman on January 25, 2020, 06:02:08 pm

Hi , yes it has the brass fitting which is female , pete

Title: Re: Frsky antenna replacement
Post by: derekwarner on January 26, 2020, 12:10:12 am

Are these not softish translations gone back to front?....Derek

Title: Re: Frsky antenna replacement
Post by: C-3PO on January 26, 2020, 10:32:26 am

Hi Derek,

The "'RP' stands for Reverse Polarity - there a 4 permutations of this plug/socket

https://en.wikipedia.org/wiki/SMA_connector (https://en.wikipedia.org/wiki/SMA_connector)

C-3PO

Title: Re: Frsky antenna replacement
Post by: derekwarner on January 26, 2020, 12:40:09 pm

Thanks for the clarification data [size=0px]C-3PO ..........[/size] :o  .......must be just me :(( , but it appears to defy logic  ...... Derek