problem with sending data using RF module

[mister_e]

I never used those ICs... maybe you could some something in this document
http://rentron.com/remote_control/remotes.pdf

It show different value for the resistor. I didn't read the according datasheet to see if it affect anything though.

Maybe you screw the OSC signal with your probe.. use a scope instead, set your probe to 10X (or 100X if you have any) and see what happen.

TE pin should be tied low too unless the oscillator won't run.. as per Their Block Diagram (page 2) in their datasheet.
http://www.holtek.com/pdf/consumer/2_12ev110.pdf

As usual, Before you attach your RF modules, try direct connection, Dout to Din of your Holtek ICs.

HTH