---
title: "Frequency Analysis ‘FFT’"
id: 12632
type: "product"
slug: "frequency-analysis-fft"
url: "http://localhost/product/frequency-analysis-fft/"
markdown_url: "http://localhost/product/frequency-analysis-fft.md"
published_at: "2019-11-30T01:39:17+00:00"
modified_at: "2026-03-22T13:13:40+00:00"
author: "David Anderson"
featured_image:
  url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg"
excerpt: "Fast Fourier Transform on EPROM in 4K of Z80 code. 256 points of magnitude and phase data calculated in one second. Can be used as a subroutine with the 'SCOPE' to display frequencies up to 75khz."
category:
  - name: "ROM"
    slug: "rom"
    taxonomy: "category"
    url: "http://localhost/category/hardware/rom/"
post_tag:
  - name: "Computer Continuum"
    slug: "computer-continuum"
    taxonomy: "post_tag"
    url: "http://localhost/tag/computer-continuum/"
  - name: "TS 1000"
    slug: "ts1000"
    taxonomy: "post_tag"
    url: "http://localhost/tag/ts1000/"
model:
  - name: "Timex/Sinclair 1000"
    slug: "ts-1000"
    taxonomy: "model"
    url: "http://localhost/model/ts-1000/"
genre:
  - name: "Hardware"
    slug: "hardware"
    taxonomy: "genre"
    url: "http://localhost/type/hardware/"
  - name: "ROM"
    slug: "rom"
    taxonomy: "genre"
    url: "http://localhost/type/rom/"
company:
  id: 10757
  title: "Computer Continuum"
  type: "company"
  url: "http://localhost/company/computer-continuum/"
price: 75
date: 1983
rarity: "Uncommon"
adverts:
  - publication:
      - id: 26652
        title: "SYNC v3 n6"
        type: "issue"
        url: "http://localhost/issue/sync-v3-n6/"
    advert_page: "49"
companies_products:
  - id: 10757
    title: "Computer Continuum"
    type: "company"
    url: "http://localhost/company/computer-continuum/"
---

# Frequency Analysis ‘FFT’

Fast Fourier Transform on EPROM in 4K of Z80 code. 256 points of magnitude and phase data calculated in one second. Can be used as a subroutine with the ‘[SCOPE](http://localhost/product/dual-trace-scope/)‘ to display frequencies up to 75khz.