---
title: "AMSAT AMS-81 Tracking System"
type: "article"
slug: "amsat-ams-81-tracking-system"
url: "http://localhost/article/amsat-ams-81-tracking-system/"
markdown_url: "http://localhost/article/amsat-ams-81-tracking-system.md"
published_at: "2026-01-14T19:41:39+00:00"
modified_at: "2026-01-14T19:41:40+00:00"
featured_image:
  url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg"
excerpt: "The AMSAT AMS-81 TRACKING SYSTEM (software version) is ready for distribution. AMS-81 provides accurate access schedule and tracking information for satellites in PHASE II and PHASE Ill type orbits. Hardware requirements include only the SINCLAIR ZX-81 or TIMEX/SINCLAIR TS-1000 with 16K RAM, video display and cassette recorder."
category:
  - name: "QZX"
    slug: "qzx"
    taxonomy: "category"
    url: "http://localhost/category/periodicals/qzx/"
post_tag:
  - 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/"
indiv:
  - name: "Ralph Wallio (W0RPK)"
    slug: "ralph-wallio-w0rpk"
    taxonomy: "indiv"
    url: "http://localhost/indiv/ralph-wallio-w0rpk/"
publication_r:
  id: 21219
  title: "QZX"
  type: "periodical"
  url: "http://localhost/periodical/qzx/"
authors_r:
  - name: "Ralph Wallio (W0RPK)"
    slug: "ralph-wallio-w0rpk"
    taxonomy: "indiv"
    url: "http://localhost/indiv/ralph-wallio-w0rpk/"
volume: "1"
issue: "6"
issues_articles:
  - id: 62162
    title: "QZX v1 n6"
    type: "issue"
    url: "http://localhost/issue/qzx-v1-n6/"
pages: "4, 7"
pubdate: "May 1983"
archive_link: false
---

# AMSAT AMS-81 Tracking System

The AMSAT AMS-81 TRACKING SYSTEM (software version) is ready for distribution. AMS-81 provides accurate access schedule and tracking information for satellites in PHASE II and PHASE Ill type orbits. Hardware requirements include only the SINCLAIR ZX-81 or TIMEX/SINCLAIR TS-1000 with 16K RAM, video display and cassette recorder.