this information applies to the following device numbers..............

ERF2030, IRF520, MS1307, NL313, MOS RM3

We have come up with a couple of additional steps to the current Cobra 
29 mod that increases the carrier to approx. 10 watts without affecting 
the peak power.

To get the higher carrier, do the current mod and then do the following 
3 additional steps:

1)      Add a 4.7K ohm resistor (1/4 watt) from the positive side of 
C116 to the gate of the ERF-2030 (this is the left-most leg when 
looking at the face of the ERF-2030).

2)      Remove the capacitor at C62, and replace it with a 390pF 
capacitor. Also, make sure that there are no additional capacitors 
tacked on the solder side of the PCB (sometimes Cobra adds additional 
capacitance at this part to get everything to tune-up correctly). If 
there is an additional capacitor on the solder side at C62, then 
remove it.

We have had good success with these additional steps and it gives 
everyone the carrier level that they are looking for.