About removing the modem. .... I always though ...just need to remove the ... the antenna .. modem would always get no signal and transmissons would always fai

About removing the modem. .... I always though ...just need to remove the ... the antenna .. modem would always get no signal and transmissons would always fail.... Same for the GPS. To verify- no other hiddwen transmitters could use some RF( Radio Frequency) analyzers [RF analyzer (ie spectrum analyzer) is a tool for measuring the power, frequency, and signal strength of radio frequency signals.]