Station layout
A station normally includes a transceiver, power supply, feeder, antenna and suitable accessories. Keep RF cables away from sensitive audio and computer wiring where practical. Provide ventilation for equipment that produces heat.
Power supply and wiring
Use a supply with the correct voltage, current capacity and polarity. Fit suitable fuses close to the source. Use wire with an adequate current rating. Poor connections can heat up and cause voltage drop.
Earthing and bonding
Protective earthing reduces electric-shock risk. RF bonding can reduce unwanted RF currents and help control interference. Protective earth and RF ground serve different purposes and must not be confused.
Electrical safety
Disconnect power before servicing. Mains circuits and valve equipment can contain dangerous voltages. Capacitors may remain charged after power is removed. Discharge them with an appropriate method and verify with a meter.
RF exposure
RF energy can heat body tissue. Keep people away from high-field areas near transmitting antennas. Follow applicable exposure limits and safe-distance guidance. Never touch an antenna while transmitting.
Lightning and surge protection
Outdoor antennas can collect lightning energy and induced surges. Use suitable bonding, grounding and surge protection. Disconnect feeders from equipment during storms when safe. No protection system can guarantee safety from a direct strike.
Interference control
Use correct frequency, power, filtering and antenna placement. Keep transmitter harmonics low. Check for common-mode current on feeders. Ferrite chokes, bonding and good cable routing can reduce some forms of RF interference.
Operating checks
Before transmitting, confirm the correct band, frequency, mode, antenna connection and power setting. Listen first. Check that the frequency is clear. Identify the station as required by the current rules.