new antenna required?

[Let'sgoflying!]

I have a 530W and am thinking of changing the GTX 327 to 345.

I want the ADS-B in and out, Class A airspace /international ops solution. (Is that Mode S-ES?)

Will I need to install a new, separate antenna?

 

[GeorgeC]

No.

 

[Mtns2Skies]

If I were a cooler moderator, I'd lock the thread after @GeorgeC 's post. Ultimate mic drop.

 

[Unit74]

No... Uses the same ol transponder antenna. The 345 is an 1090 ES box, pulls the GPS data from the 430W so no.

 

[Let'sgoflying!]

thanks

 

[bnt83]

That transponder is around $4500, depending on what the coax and antenna look like, I’d replace it with a blade and RG400(or better if needed), cheap insurance for flawless performance. Also note that there is DB loss issues with really long coax and these (most?) can fail transponder ramp inspections if manufacturer specs are ignored. I think the 345 says RG400 should be no lomger than 8 feet but not positive.

 

[Let'sgoflying!]

No... Uses the same ol transponder antenna. The 345 is an 1090 ES box, pulls the GPS data from the 430W so no.

getting conflicting info, so just want to confirm there is not a separate antenna required for the ads-b function.

 

[Unit74]

getting conflicting info, so just want to confirm there is not a separate antenna required for the ads-b function.

Listen to Jesse.....

 

[Jesse Saint]

No new antenna is needed. The transponder and ads-b receiver use a single antenna. No gps antenna is needed because the WAAS navigator provides position.

 

[Let'sgoflying!]

Haha you guys fight that one out & let me know.