A method for adjusting power for code signals, the method comprising: generating, by at least one processor associated with a ground station, a symbol table (500, 600) by using a least one type of code, desired power for each of the at least one type of code, and channel assignments for each of the at least one type of code; transmitting, by at least one antenna associated with the ground station, to at least one receive antenna on a vehicle at least one symbol table signal comprising the symbol table (500, 600); determining, by at least one processor on the vehicle, a code loss for a transmission of the code signals by using the symbol table (500, 600); determining, by the at least one processor on the vehicle, an amount of change in attenuation for at least one adjustable attenuator on the vehicle by using the code loss by comparing the symbol table (500, 600) uploaded into a digital waveform generator against a reference symbol table, wherein a maximum gain is associated with the reference symbol table corresponding to a maximum power distribution; adjusting an attenuation, for the at least one adjustable attenuator, by the amount of change in attenuation; attenuating, by the at least one adjustable attenuator, signals to generate adjusted signals; amplifying, by the at least one amplifier on the vehicle, the adjusted signals to generate the code signals; and transmitting, by the at least one transmit antenna on the vehicle, the code signals, wherein the code loss is a code combining loss, Lcc, where Lcc is equal to a desired power for the signals transmitted by the vehicle, P desired, minus an actual transmitted power for the signals transmitted by the vehicle, P transmitted. generating, by at least one processor associated with a ground station, a symbol table (500, 600) by using a least one type of code, desired power for each of the at least one type of code, and channel assignments for each of the at least one type of code; transmitting, by at least one antenna associated with the ground station, to at least one receive antenna on a vehicle at least one symbol table signal comprising the symbol table (500, 600); determining, by at least one processor on the vehicle, a code loss for a transmission of the code signals by using the symbol table (500, 600); determining, by the at least one processor on the vehicle, an amount of change in attenuation for at least one adjustable attenuator on the vehicle by using the code loss by comparing the symbol table (500, 600) uploaded into a digital waveform generator against a reference symbol table, wherein a maximum gain is associated with the reference symbol table corresponding to a maximum power distribution; adjusting an attenuation, for the at least one adjustable attenuator, by the amount of change in attenuation; attenuating, by the at least one adjustable attenuator, signals to generate adjusted signals; amplifying, by the at least one amplifier on the vehicle, the adjusted signals to generate the code signals; and transmitting, by the at least one transmit antenna on the vehicle, the code signals, wherein the code loss is a code combining loss, Lcc, where Lcc is equal to a desired power for the signals transmitted by the vehicle, P desired, minus an actual transmitted power for the signals transmitted by the vehicle, P transmitted.