• You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.
  • A Winner has been selected for the 2025 Radioddity Cyber Monday giveaway! Click Here to see who won!

Rocket Box 500HD Mosfet Amplifier

I have one and I love it! After I put a fan on top of it, have it turn on with the AMP while using LMR240 coaxial with an sirio antenna with SWRs set at below 1.5 while using common mode choke a foot from the antenna I am able to comfortably talk skip all day long. The coaxial ground is directly bonded to the car body. There's also a low pass filter between the radio and the amp and another low pass filter after the amp.
What's the point of a LPF after the radio, when you have a LPF after the amp? The radio has a filter, as does the amp. Perhaps more attenuation after the amp, but the radio? A common mode choke? For what? I am assuming a mobile antenna, because you are using LMR240? Why?

You tell me the radio my friend is using is crap?
 

dxChat
Help Users
  • No one is chatting at the moment.