Non-radar transponder codes

"Julian Scarfe" wrote in message
...

Hey Julian, do you like the CNX-80?

It came from your discussions of wanting a VNAV.

"Brad Z" wrote in message
news:XkwVb.254738$na.416430@attbi_s04...

TCAS?


How does the beacon code affect TCAS performance?

It doesn't, but if you turn the box off and squawk nothing, TCAS won't see
you. So I suppose my point is that it doesn't matter what you squawk if
radar can't see you, as long as you're squawking something.


"Steven P. McNicoll" wrote in message
hlink.net...

"Brad Z" wrote in message
news:XkwVb.254738$na.416430@attbi_s04...

TCAS?


How does the beacon code affect TCAS performance?

"Brad Z" wrote in message
news:yIEVb.208758$nt4.986973@attbi_s51...

It doesn't, but if you turn the box off and squawk nothing, TCAS
won't see you. So I suppose my point is that it doesn't matter
what you squawk if radar can't see you, as long as you're
squawking something.


I believe that was Roy Smith's point.

Exactly...someone is usually watching somewhere regardless of where you
are.

I used to laugh in the 80's & early 90's when I was flying over Cuba on
a regular basis. Havana would always tell me that radar service was
terminated and then require verbal position reports while we all knew
they were tracking us closely on their radar. Now that things are
"friendlier" with them, we are always in radar contact....amazing....

"Radar service terminated" doesn't mean someone...somewhere...isn't
watching.

BJ

John R Weiss wrote:

"Roy Smith" wrote...


If you're out of radar coverage, why does anybody care what you squawk?



While you may be out of range of ATC radar, "Big Brother" may be watching with
even bigger radars (e.g., Shemya)...

"John R Weiss" wrote in message
news:NEdVb.247397$na.411669@attbi_s04...

Generally, though, the ATC controller who provides flight following
should tell you what to squawk when radar service is terminated. If
he says "Squawk VFR," then squawk 1200.
If he doesn't give you a code, ask.


If he doesn't give you a code, you still squawk 1200.



Back in the 70s when I flew VFR over Puerto Rico and the USVI,
we squawked 1200 when we had no other assigned squawk.


Same today. In the seventies, VFR traffic at and above 10,000 MSL squawked
1400.

Roy Smith wrote:

In article , wrote:
And, once you depart domestic FAA control and are handed off to oceanic you
are expected to squawk 2000. That is an ICAO rule.

If you're out of radar coverage, why does anybody care what you squawk?

You'll have to ask ICAO that question. It's their rule.