Quote:
Originally Posted by Devo1098
hey, just get a standard hobby reciver, and plug in the vex crystal and it works, the hobby reciver already has the chips in it to output pwm for servos
super simple
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I've tried that with a JR R610M 6-ch FM receiver from an old RC airplane, popped the vex rx crystal into it and nothing works. The transmitter and receiver are connected though, as when I turn on the transmitter, servos attached to the receiver will twitch. Just none of the controls on the vex transmitter do anything.
Any ideas? Should I find myself another 6-ch receiver?
EDIT: The JR receiver has an "ABC&W" circuit in it, perhaps this has something to do with why it doesn't talk to the vex transmitter?
JR Radio describes the ABC&W circuit as:
"JR has a unique signal processing system called ABC&W. ABC&W stands for Automatic Blocking Circuit with Window. ABC&W systems have distinct advantages over single or dual conversion receivers. ABC&W systems create a very small electronic window that looks for the specific frequency that the receivers crystal is on. Any signal that is off spec for this window is rejected, and then the allowed signal is cleaned up, amplified, and re-routed through the window many, many times till all that is left is the pure signal on the channel that is coming from your transmitter and then sent on to the servos. This all takes place without any noticeable delay of response from your stick movement to the servo. This technology is the reason that JR can produce single conversion receivers that have fewer components and weigh less than other single and dual conversion receivers without the worry about outside interference."