studentkra
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Antenna switch | Kits | Commercially available?
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Antenna switch | Kits | Commercially available?
I post firmware to control PE4302 attenuator via ESP8266 on GitHub now.
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Antenna switch | Kits | Commercially available?
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v1.806
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Poll: Remove electronic attenuator in future Kiwi-2 builds
I successfully use an external attenuator for KiwiSDR1. The attenuator is assembled on the PE4302 board and ESP8266. Control is via USB connection to KiwiSDR. The attenuator works in a simple automatic mode. At night, a signal attenuation of 15 dB is used. In the daytime, the signal attenuation is set to 5 dB. An algorithm for controlling the attenuator in an intelligent mode with feedback by reading the ADC_overvoltage values was also developed. Attenuation is selected automatically several times per minute so that ADC overloads are as small as possible.
https://forum.kiwisdr.com/index.php?p=/discussion/2996/external-attenuator-for-kiwisdr-1