PiepTX SW | Shortwave TX Module 500 Watt 3,5 - 7,5 MHz

This module offers versatile possibilities with a frequency range of 3.5 to 7.5 MHz and with an adjustable frequency via a rotary switch, ranging from 1 Hz to 100 kHz in steps. In addition, it is equipped with SWR protection and a wattmeter, visible on the display, with which the adjustable power from 0 to 500 watts can be read accurately. With two PWM modulators and four RF boards, this setup is optimized for maximum power and audio output. The 7-pole lowpass filter ensures effective harmonic suppression, which contributes to the overall performance. Even the construction of the module is robust, reinforced by a sturdy heatsink. For proper operation, it is necessary to purchase a 12V power supply of 5 amps for the control section and an 85V power supply for the output stage. Lower voltages are possible, but result in a reduced maximum output. Serial power can be used to achieve the required maximum voltage.