---
title: "CWSS CW Program Mods"
type: "article"
slug: "cwss-cw-program-mods"
url: "http://localhost/article/cwss-cw-program-mods/"
markdown_url: "http://localhost/article/cwss-cw-program-mods.md"
published_at: "2026-01-15T14:44:21+00:00"
modified_at: "2026-01-15T14:44:22+00:00"
featured_image:
  url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg"
excerpt: "Jon took his ZX & CWSS to OE2-land and had to make a few mods to get them working. He says 20wpm came out at 30 over there. By clipping resistor R30 he corrected the TV scan rate and he wrote the following program to convert the CWSS speeds for overseas use."
category:
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post_tag:
  - name: "TS 1000"
    slug: "ts1000"
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    url: "http://localhost/tag/ts1000/"
  - name: "Type-in program"
    slug: "type-in-program"
    taxonomy: "post_tag"
    url: "http://localhost/tag/type-in-program/"
model:
  - name: "Timex/Sinclair 1000"
    slug: "ts-1000"
    taxonomy: "model"
    url: "http://localhost/model/ts-1000/"
indiv:
  - name: "Murray Gordon (VE1BRA)"
    slug: "murray-gordon-ve1bra"
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    url: "http://localhost/indiv/murray-gordon-ve1bra/"
publication_r:
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  title: "QZX"
  type: "periodical"
  url: "http://localhost/periodical/qzx/"
authors_r:
  - name: "Jon Harder (K1US)"
    slug: "jon-harder"
    taxonomy: "indiv"
    url: "http://localhost/indiv/jon-harder/"
volume: "1"
issue: "11"
issues_articles:
  - id: 62166
    title: "QZX v1 n11"
    type: "issue"
    url: "http://localhost/issue/qzx-v1-n11/"
pages: "2"
pubdate: "October 1983"
archive_link: false
---

# CWSS CW Program Mods

Jon took his ZX & CWSS to OE2-land and had to make a few mods to get them working. He says 20wpm came out at 30 over there. By clipping resistor R30 he corrected the TV scan rate and he wrote the following program to convert the CWSS speeds for overseas use.