Locating Transponder Antenna on top of the fuselage instead of under it.

On Sunday, December 29, 2019 at 9:15:03 AM UTC-8, Jonathan St. Cloud wrote:
On Saturday, December 28, 2019 at 8:55:37 AM UTC-8, jfitch wrote:
On Saturday, December 28, 2019 at 12:26:15 AM UTC-8, Tango Whisky wrote:
My transponder hs 250 W output, no way I would want that any place near my head or my balls.

The normal location (recommended by many manufacturers) just ahead of the gear doors is much closer to your balls than an L2 in the nosecone (or the instrument pod), if that worries you. Probably less than 2' away. I always wear tin foil underwear to match my tin foil hat. But my transponder antenna is in the nosecone and works perfectly as tested by external radiated power and FCC ADS-B out reports.

But you don't wear tin-foil socks, do your toenails grow faster during soaring season? Would like to get a bit more information on the tin-foil hat, I think I need one. I have my transponder antenna in the fin works great, no need for time foil panties.

There's not much point in the tin foil hat, when 5G is deployed we will be dying and/or mutating by the 10s of thousands. I read that on the internet, so I'm certain it's true.

In the Ventus picture, you can see that the antenna is about half the distance to the pilots privates than it would be up in the nose cone.

jfitch wrote on 12/29/2019 9:53 AM:
On Sunday, December 29, 2019 at 9:15:03 AM UTC-8, Jonathan St. Cloud wrote:
On Saturday, December 28, 2019 at 8:55:37 AM UTC-8, jfitch wrote:
On Saturday, December 28, 2019 at 12:26:15 AM UTC-8, Tango Whisky wrote:
My transponder hs 250 W output, no way I would want that any place near my head or my balls.

The normal location (recommended by many manufacturers) just ahead of the gear doors is much closer to your balls than an L2 in the nosecone (or the instrument pod), if that worries you. Probably less than 2' away. I always wear tin foil underwear to match my tin foil hat. But my transponder antenna is in the nosecone and works perfectly as tested by external radiated power and FCC ADS-B out reports.

But you don't wear tin-foil socks, do your toenails grow faster during soaring season? Would like to get a bit more information on the tin-foil hat, I think I need one. I have my transponder antenna in the fin works great, no need for time foil panties.

There's not much point in the tin foil hat, when 5G is deployed we will be dying and/or mutating by the 10s of thousands. I read that on the internet, so I'm certain it's true.

In the Ventus picture, you can see that the antenna is about half the distance to the pilots privates than it would be up in the nose cone.

Since it's quarter wave antenna, I'm guessing the radiation pattern means a lot
less power is radiated to the pilot than a dipole in the nose cone.


--
Eric Greenwell - Washington State, USA (change ".netto" to ".us" to email me)
- "A Guide to Self-Launching Sailplane Operation"
https://sites.google.com/site/motorg...ad-the-guide-1

On Sunday, December 29, 2019 at 9:53:24 AM UTC-8, jfitch wrote:
On Sunday, December 29, 2019 at 9:15:03 AM UTC-8, Jonathan St. Cloud wrote:
On Saturday, December 28, 2019 at 8:55:37 AM UTC-8, jfitch wrote:
On Saturday, December 28, 2019 at 12:26:15 AM UTC-8, Tango Whisky wrote:
My transponder hs 250 W output, no way I would want that any place near my head or my balls.

The normal location (recommended by many manufacturers) just ahead of the gear doors is much closer to your balls than an L2 in the nosecone (or the instrument pod), if that worries you. Probably less than 2' away. I always wear tin foil underwear to match my tin foil hat. But my transponder antenna is in the nosecone and works perfectly as tested by external radiated power and FCC ADS-B out reports.

But you don't wear tin-foil socks, do your toenails grow faster during soaring season? Would like to get a bit more information on the tin-foil hat, I think I need one. I have my transponder antenna in the fin works great, no need for time foil panties.

There's not much point in the tin foil hat, when 5G is deployed we will be dying and/or mutating by the 10s of thousands. I read that on the internet, so I'm certain it's true.

In the Ventus picture, you can see that the antenna is about half the distance to the pilots privates than it would be up in the nose cone.

And uh.... not relevant... the pilot is inside his carbon fiber partial faraday cage cockpit, and (agreeing with Eric) the pattern from the 1/4 wave antenna with groundplane shields the pilot from the antenna.

Over a beer some time: details of teaching assistants punking male students in their undergrad physics lab classes into wearing aluminium foil "mini skirts" during a _very_ low power microwave experiment. Oh so well done.

On Sunday, December 29, 2019 at 12:23:28 PM UTC-8, Darryl Ramm wrote:
On Sunday, December 29, 2019 at 9:53:24 AM UTC-8, jfitch wrote:
On Sunday, December 29, 2019 at 9:15:03 AM UTC-8, Jonathan St. Cloud wrote:
On Saturday, December 28, 2019 at 8:55:37 AM UTC-8, jfitch wrote:
On Saturday, December 28, 2019 at 12:26:15 AM UTC-8, Tango Whisky wrote:
My transponder hs 250 W output, no way I would want that any place near my head or my balls.

The normal location (recommended by many manufacturers) just ahead of the gear doors is much closer to your balls than an L2 in the nosecone (or the instrument pod), if that worries you. Probably less than 2' away. I always wear tin foil underwear to match my tin foil hat. But my transponder antenna is in the nosecone and works perfectly as tested by external radiated power and FCC ADS-B out reports.

But you don't wear tin-foil socks, do your toenails grow faster during soaring season? Would like to get a bit more information on the tin-foil hat, I think I need one. I have my transponder antenna in the fin works great, no need for time foil panties.

There's not much point in the tin foil hat, when 5G is deployed we will be dying and/or mutating by the 10s of thousands. I read that on the internet, so I'm certain it's true.

In the Ventus picture, you can see that the antenna is about half the distance to the pilots privates than it would be up in the nose cone.

And uh.... not relevant... the pilot is inside his carbon fiber partial faraday cage cockpit, and (agreeing with Eric) the pattern from the 1/4 wave antenna with groundplane shields the pilot from the antenna.

Over a beer some time: details of teaching assistants punking male students in their undergrad physics lab classes into wearing aluminium foil "mini skirts" during a _very_ low power microwave experiment. Oh so well done.

You'd need to show me the data on that. A minimally conductive carbon fuselage with some huge holes in it, a very imperfect 1/4 wave vs. twice the distance. We're talking r^3 here. I'm not actually sure what measurements might show, and I wouldn't bet my glider on one answer over the other.

jfitch wrote on 12/29/2019 10:16 PM:
And uh.... not relevant... the pilot is inside his carbon fiber partial faraday cage cockpit, and (agreeing with Eric) the pattern from the 1/4 wave antenna with groundplane shields the pilot from the antenna.

Over a beer some time: details of teaching assistants punking male students in their undergrad physics lab classes into wearing aluminium foil "mini skirts" during a_very_ low power microwave experiment. Oh so well done.
You'd need to show me the data on that. A minimally conductive carbon fuselage with some huge holes in it, a very imperfect 1/4 wave vs. twice the distance. We're talking r^3 here. I'm not actually sure what measurements might show, and I wouldn't bet my glider on one answer over the other.

Not r^3, but only r^2 for antenna field strength reduction. It's an area thing,
not a volume thing.

--
Eric Greenwell - Washington State, USA (change ".netto" to ".us" to email me)
- "A Guide to Self-Launching Sailplane Operation"
https://sites.google.com/site/motorg...ad-the-guide-1

Yep, but there is a carbon shell between antenna andthe pilot's privates.