ORIGINAL: Flying Geezer

I am under the impression that all of the 2.4 ghz equipment, phones, routers, rc radios, look for clear frequencies and switch when they find inteference.

ORIGINAL: JCINTEXAS

Fritz quote:
"XPS - After turn on, Rx scans freq and selects one, tells Tx."
__________________________________________________ _
Question:
How does the receiver "tell" the transmitter?
This would require "duplex communication"
with the Rx having a transmit capability,
and the Tx having a receiver capability.
Regards
JC
"I've got 3-green"

The XtremeLinkâ„¢ uses bi-directional communication between the transmitter module and the receiver. Data is transferred and acknowledged, both directions. Data encryption and 64 bit CRC error checking means that invalid data being passed to the servos is virtually impossible.

1024 systems are great. 2048 (Futaba's 14MZ) is even better. The XtremeLinkâ„¢ has an unparalleled 65536 (16 bits) system! Future versions of the XtremeLinkâ„¢ could have enough bandwidth for live video and audio transmissions!

The transmitter module has a port for a remotely mounted telemetry control unit consisting of a large (20 character x 4 lines) trans-reflective and backlit LCD screen with three function buttons. The unit conveniently mounts in your old antenna hole! On-board sensor modules (which plug into the XtremeLinkâ„¢ receiver) allow data from your R/C plane, car, or boat to be viewed in real-time! Up to 256 different sensor modules can be connected and accessed at the same time via the telemetry system. The telemetry upgrade comes with the standard flight sensor package which provides battery voltage, on-board temperature, and altitude. Additional sensor modules for airspeed, various temperature readings (exhaust gas temperature, battery temperature, etc.), and many other functions will be available. An earphone jack is used to access the built-in audio output. The telemetry control unit can be programmed to sound an alarm by using tones and/or human speech when certain events occur (such as too slow of air speed, too low of altitude, low battery, etc). Some of sample words in module vocabulary include: altitude, warning, landing, gear, speed, failure.

ORIGINAL: RC David

Thanks JC.

Hopefully I won't have any problems with the receiver or battery as I've read about some of the past problems. All seems to be ok now though.


Dave

IMHO, a radio system like the DX-7, that was/is unique in it's SLOW recovery from a momentary power reduction was/is a huge design flaw. No one in the rc community was aware of this characteristic (a characteristic the 72 MHZ systems did not share) when they were introduced and a lot of planes were lost because of it. This happened to novices as well as experienced flyers because it was a new and unexpected response to a momentary low voltage. I use mine but I still don't trust it in a valuable plane.

ORIGINAL: DadsToysBG

There are many reasons. This how I see it. (1) don't have to worry about shot downs. (2) engine noise in gas. (3) speed of the radio. At the national heli fly-in a Muncie this year 720 pilots only 120 were on 72. What kind of inpound would you have had with that many radios?. 15 flight stations only the 72 had be be inpounded everybody else just flew when they wanted too. Check about the JoNall over 500 pilots. Do you need to move? No. Will you move at some time. Yes. No one can answer the question of which is better, thats up to you. Have fun trying to figure it out. I made the move and quit worrying about it. Dennis