Pattern resolution is intended to match native resolution of the display. At any other resolutions where the pattern size is scaled to the display size scaling artifacts will render many patterns useless. If your viewing program supports a scaling factor of 1:1, that is, one pixel in the image maps to one pixel in the display, then patterns not matching the display resolution will show without artifacts but intent of some of the patterns will not be attained.

8K Resolution Omitted Patterns

Pattern Files

Here are links to zip files containing test patterns for HDTV and common monitor resolutions. Each zip file contains 206 unique patterns arranged in groups by file name. These files are named with the actual resolution and a descriptive resolution identifier taken from a Wikipedia article.

Thumb-160x100	NTSC-720x480	PAL-720x576	XGA-1024x768
HD-1280x720	SXGA-1280x1024	WXGA-1280x800	WXGA+-1440x900
HD+-1600x900	UXGA-1600x1200	WSXGA+-1680x1050	WUXGA-1920x1200
FHD-1920x1080	WQXGA-2560x1600	QHD-2560x1440	UHD-3840x2160
8k-UHD-7680x4320 *

Pattern Groups

The tables below describe the groups that make up the files in the above zip files. The images are examples of typically a subset of the contents of a group. They are not links to the full size images, which are only available in the zip files. This is because of the amount of room the uncompressed files in all the resolutions would consume.

The thumbnails (160x100) in the examples show artifacts arising from the small size. These do not appear in the full-size images.

Quick Check Patterns

These patterns are intended for a quick, overall assessment or check of a display. The use of the term checkers is unrelated to the term check. Checkers refers to an alternating black/white pattern similar to a checkers board and is frequently used with gamma patterns. Check refers to assessment or evaluation.

hot | Weierwei Vev3288s Programming Software

Save your radio’s configuration (codeplug) to your computer. If your radio is lost, damaged, or reset, you can clone the data to a new unit instantly.

The Weierwei VEV-3288S is a legendary workhorse in the amateur radio and commercial walkie-talkie world. Known for its rugged durability, clear audio, and budget-friendly price point, this handheld transceiver remains a popular choice for security teams, outdoor enthusiasts, and ham radio operators alike.

Install the cable drivers (usually Prolific or FTDI drivers) so the computer recognizes the USB connection. Run the setup.exe or VEV-3288S.exe file. 2. Reading from the Radio (Initial Setup) Open the software. weierwei vev3288s programming software

Input dozens of channels, alpha-numeric names, and frequencies in minutes using a spreadsheet-style interface.

The native Weierwei VEV-3288S software is a legacy Windows application. It runs smoothly on Windows XP, Windows 7, Windows 8, and Windows 10. If you are running Windows 11, you may need to run the application in . Step-by-Step Installation and Connection Guide Known for its rugged durability, clear audio, and

Click > Save As to save your channel grid as a backup file ( .dat or proprietary extension) on your computer.

Before you begin, ensure you have the following three components: you can enter:

If you see a yellow exclamation mark in Device Manager, you likely need to "Roll Back" your Prolific driver to an older version (3.2.0.0 is a common stable version for "clone" cables). Safety and Compliance

Wait for the clone progress bar to finish. The radio will reboot automatically once the process concludes. Disconnect the cable, and your VEV-3288S is ready for use. Troubleshooting Common Software Connection Errors

The is a versatile handheld radio that can be programmed via dedicated software to manage frequencies, CTCSS/DCS tones, and advanced settings more efficiently than manual entry. 1. Getting the Software & Hardware

Always start by clicking "Read from Radio." This pulls the current configuration and ensures the software and radio are communicating correctly. Edit Channels: In the channel list table, you can enter:

Comprehensive Patterns

Group Name	Description	Examples
Clipping	Description
Color Bars	Description
Color Composite Step Wipe	Description
Color One	Description
Color Patch	Description
Color Random	Description
Color Random Gray	Description
Color Step Lin / Log	Description
Color Triangle	Description
Color Wipe Full / Half	Description
Gamma Checker / Lines	Description
Geometry Bars	Description
Geometry Checkers	Description
Geometry Checkers Log	Description
Geometry Distortion	Description
Geometry Grid	Description
Geometry Lines Hori	Description
Geometry Lines Vert	Description
Geometry Points	Description
Geometry Squares	Description
Color Swatch Hsl	Description
Color Swatch Hsv	Description
Color Swatch Rgb	Description
Color Wipe Hsl	Description
Color Wipe Hsv	Description
Color Wipe Rgb	Description

History

Many years ago I posted some HDTV test patterns to Flickr. They were quite popular, received quite a few hits, and were probably linked from another site but I never found where.

In December, 2013, I wrote a new generating program in Python, included several composite images, many geometric and color images and used descriptive file names. These were, and continue to be, some of my most popular images on Flickr but at Flickr they were only in a resolution of 1920x1080.

In March, 2023, I converted the generating program from Python2 to Python3 correct a bug causing vertical lines in one of the color images, changed the name of the image files, updated the resolutions, and added many new patterns including the inverse of several.