Скачать с ютуб Using the LOXJIE A10 60 Watt Class-D Audio Amplifier as a 48Khz LF Band CW Transmitter AMP в хорошем качестве

Using the LOXJIE A10 60 Watt Class-D Audio Amplifier as a 48Khz LF Band CW Transmitter AMP

1st test run of the LOXJIE A10 Amplifier, http://www.loxjie-audio.com/productsh... being used to amplify a sound card's 48Khz CW LF RF output from its native sound card headphone jack output the PC's native MOBO sound card was set to 192Khz to enable direct 48Khz CW generation by the AD5DZ CW KEYER APPs https://github.com/recri/keyer the output of the PC's sound card goes to the input of the LOXJIE A10 Amplifier, the output of the LOXJIE A10 Amplifier goes to the input of a 4/1 ferrite balun, the output of the balun is series cap tuned to peak resonance at 48Khz, for maximum 48Khz CW LF RF current through the compact 21 foot long Delta Loop Transmit Antenna(a VERY inefficient length for 48Khz LF BAND...yet still strong enough to produce a strong LF RF EMF RX signal in the RX ANTENNA(s) despite its pretty low EIRP output RX antenna(s) - TUNED TWIN COIL FERRITE ROD connected directly to the recording laptop's STEREO MIC JACK INPUT...and a 2nd passive tuned ferrite rods/airdux coil RX antenna is in proximity to the 1st TX antenna, significantly increasing the RX pickup LF RF signal from the transmitter here is a follow up video demo'N VOICE TRANSMITTER on UPPER SIDE BAND using this amp & antenna    • Using the LOXJIE A10 60 Watt Class-D ...