# Analog TV Simulator

> Physics-accurate analogue television simulator for iPhone, iPad and Mac.

Analog TV Simulator models the complete analogue broadcast television chain from first principles: broadcast camera tube → composite signal encoding → VCR tape degradation → RF transmission → CRT phosphor chemistry. Every artefact emerges from the simulated signal; no post-process filters are applied over a clean image.

## Platforms
- iPhone and iPad: iOS 16+, App Store ID 6760956212
- Mac: macOS 13+, Mac App Store ID 6761325301

## TV standards supported
NTSC (525-line 60 Hz), PAL (625-line 50 Hz), SECAM, SECAM-L, D-MAC, D2-MAC, MUSE Hi-Vision (Japanese 1125-line HDTV), HD-MAC (European 1250-line HDTV)

## Camera tubes / sensors simulated
- Image Orthicon (early broadcast, 1946–1960s): extreme sensitivity, halo artefacts, lag
- Vidicon (1950s–1980s): gamma ≈ 0.65, comet tailing, lag
- Plumbicon (broadcast standard, 1965–1990s): linear gamma, low lag, MTF-accurate
- Saticon (Hitachi, 1975–1990s): selenium-arsenic-telluride photoconductor, sharp aperture MTF, 3-tube registration drift
- Newvicon (consumer/prosumer, 1970s–1990s): CdZnTe photoconductor, stripe-filter colour
- Early CCD sensor: silicon with vertical smear artefacts
- Telecine / film chain: 24→25/29.97 fps pulldown jitter, film grain, weave

## VCR formats
VHS (SP/LP/EP), Betamax, S-VHS, Hi8, U-matic, Betacam SP, and Fisher-Price PXL-2000 (Pixelvision), each with accurate bandwidth limiting, colour-under hue drift (or component FM tracks for Betacam SP), dropout, head-switching noise, wow and flutter, and generation loss

## CRT phosphors (8 types)
P22 (RGB colour TV), P4 (white broadcast monochrome TV), P31 (green oscilloscope/monitor), P45 (white broadcast viewfinder), P3 (amber WWII radar), P7 (dual-persistence radar, white→yellow-green fade), P11 (deep blue oscilloscope photography), P24 (cyan-green flying-spot scanner)

## Pay TV Scrambling
Five analog conditional-access systems simulated from first principles on the composite waveform: Sync Suppression (Oak Orion/Jerrold), Video Inversion (VideoCipher II, HBO/ESPN), Cut-and-Rotate (Videocrypt/Sky BSkyB), Line Shuffle (Nagravision/Canal+), SSAVI (Zenith Z-TAC, sync raise + sinusoidal H-oscillator hunt + whole-field colour inversion).

## Input sources
Live camera, photo library, screen capture, screen recording

## Developer
Ambor, https://analogtv.net

## Optional
- Full technical reference: https://analogtv.net/llms-full.txt