studentkra

About

Username: studentkra
Joined: October 2021
Visits: 6,966
Last Active: April 6
Roles: Member
Points: 22

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Antenna switch | Kits | Commercially available?

studentkra

April 3

My project of HMC253 and ESP8266 antenna switch on Github.
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My project of HMC253 and ESP8266 antenna switch on Github.
This is an embed external element. It can be deleted using the delete key or the backspace key. To view the full element, press the preview button below.
GitHub - studentkra/HMC253: Antenna switch HMC253 and ESP8266
https://github.com/studentkra/HMC253
Antenna switch HMC253 and ESP8266. Contribute to studentkra/HMC253 development by creating an account on GitHub.
Not tested yet ))
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Antenna switch | Kits | Commercially available?

studentkra

March 28

I post firmware to control PE4302 attenuator via ESP8266 on GitHub now.
https://github.com/studentkra/PE4302_attenuator
Antenna switch | Kits | Commercially available?

studentkra

March 28

I received an HMC253 (DC-2.5 GHz) board today for $8. I also have an ESP8266 for $2. These are the cheapest materials from which you can assemble an antenna switch controlled via USB.
Anyone know what this guy is saying?

studentkra

January 21

Yes. This is bad frequency! Your should not listen it (((
Poll: Remove electronic attenuator in future Kiwi-2 builds

studentkra

January 19

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… (more)

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
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