Alexiares_HPF

This repository contains the High Pass Filter project of the OpenHPSDR Alexiares frontend

This work is protected by the TAPR Open Hardware Licence https://www.tapr.org/ohl.html

Original work by Graham Haddock, KE9H and Phil Harman, VK6APH.

for more informations, please refer to

3D image of the board are stored on this repo

HPF_top.jpg

HPF_bottom.jpg

Bom is available in CSV format

A separate BOM in XLS format is dedicated to filter capacitors

Note that ALL filter caps must be C0G or at least NP0 quality

Schematics, pcb design, modules and libs are in Kicad format

Gerber files are fully compatible with Protel 4.6 format

Board's dimensions are oversized to fit the 5x10 and 10x10cm size of all board of the Hermes project under Kicad:

Alexandrie (Ἀλεξάνδρεια), Alexiares SPI interface

Alexi2C ( Ἄλεξις), Alternate Alexiares I2C interface

Alexiares_lpf (Ἀλεξιάρης) Alexiares low pass filter

Alexiares_hpf (Ἀλεξιάρης) Alexiares high-pass filter

Alexiares_Coax_Out (Ἀλεξιάρης ) Alexiares antenna switch boards

Télémaque (Τηλέμαχος), SSPA U/V/C°/Refl/FWD sensor for the Mentor board

Mentor (Μέντωρ) Micro-controler unit(MCU) and security module controling Telemaque informations

Ulysse ou Odysseus (Ὀδυσσεύς), medium power reflectometer for the Telemaque/Mentor set

Themis (Θέμις), low power bidirectionnal reflectometer with pre-distorsion (pure signal) output

Aiôn (αἰών), 10 MHz low drift, low phase noise clock (general purpose)

Hébé (Ἥβη), EER control system for high efficiency power amp

High-pass filter section of OpenHPSDR frontend ((Alex retrofit)