{ "app": { "description": "Professional SMPTE timecode for app, field, and rack workflows from Holly Timecode, Holly LTC, and Second Stick", "skip_to_content": "Skip to main content", "title": "GPS LTC" }, "compare": { "col_app": "Holly Timecode app", "col_core": "Holly LTC Core", "col_feature": "", "col_rack": "Holly LTC Rack", "row_display_app": "Full-screen display mode on Mac and Apple TV", "row_display_core": "Rate, LOCK, and HOLDOVER lamps", "row_display_label": "Display", "row_display_rack": "HH:MM SS.FF LED front panel", "row_gps_app": "GeoLTC user bits from the device location", "row_gps_core": "GPS time discipline; UTC date in the user bits", "row_gps_label": "GPS", "row_gps_rack": "Core GPS discipline and UTC user bits", "row_holdover_app": "Follows the device clock", "row_holdover_core": "±3.5 ppm TCXO, calibrated hourly while GPS-locked", "row_holdover_label": "Holdover", "row_holdover_rack": "Core TCXO holdover", "row_output_app": "Headphone or USB audio; HDMI on Apple TV", "row_output_core": "3.5 mm TRS at line or mic level", "row_output_label": "Output", "row_output_rack": "Balanced XLR on the rear panel", "row_power_app": "The device battery", "row_power_core": "USB-C 5 V, with a CR123A clock backup", "row_power_label": "Power", "row_power_rack": "USB-C 5 V", "row_rates_app": "23.976, 24, 25, 29.97 DF, 29.97 NDF, 30", "row_rates_core": "23.976, 24, 25, 29.97 DF, 29.97 NDF, 30", "row_rates_label": "Rate / counting", "row_rates_rack": "23.976, 24, 25, 29.97 DF, 29.97 NDF, 30", "row_source_app": "Device time of day or any custom start", "row_source_core": "GPS-disciplined with TCXO holdover", "row_source_label": "Timecode source", "row_source_rack": "The Core timebase", "row_status_app": "Available free on the App Store", "row_status_core": "Pre-production; updates available", "row_status_label": "Availability", "row_status_rack": "In development", "subtitle": "Choose the form factor that fits the run time, signal path, and installation.", "title": "App, handheld, or rack" }, "core": { "board_alt": "The Core board's top silkscreen: diagonal cyan, violet, magenta, and gold bands from the Holly Timecode identity.", "buttons_desc": "Each timecode format has a dedicated illuminated button. Changes take effect on a clean frame boundary, without menus or button combinations.", "buttons_title": "One-touch format selection", "cta_interest": "Request hardware updates", "gnss_desc": "The Core derives UTC and a qualified timing pulse from GNSS. LOCK appears only when both the time solution and reference pulse are valid.", "gnss_title": "GPS discipline", "holdover_desc": "When GPS is temporarily unavailable, a ±3.5 ppm temperature-compensated oscillator carries the count. During lock, it is calibrated against GPS every hour.", "holdover_title": "Temperature-compensated holdover", "jitter_desc": "The design targets no more than 2 microseconds of edge jitter, with controlled transitions for reliable decoding by cameras and recorders.", "jitter_title": "Deterministic LTC timing", "label": "Dedicated Hardware", "lamps_desc": "Dedicated LOCK and HOLDOVER indicators show whether the count is GPS-disciplined or running on the internal clock. The active rate indicator also reports holdover confidence.", "lamps_title": "Status at a glance", "lead": "Holly LTC Core is a standalone generator designed for long production days. Connect USB-C power and an active antenna, select a timecode format, and it holds the count to GPS without depending on a phone or network.", "lid_alt": "The Holly LTC Core lid seen from above: six buttons labeled 23.976, 24, 25, 29.97 ND, 29.97 DF, and 30, a LINE/MIC switch, and LOCK and HOLD lamps.", "offset_desc": "Select a UTC offset for the local-time display without changing the UTC date or user bits carried in the LTC stream.", "offset_title": "Local display, UTC metadata", "output_desc": "The 3.5 mm output switches between line level for recorders and mic level for camera inputs. A scratch mic on the ring can carry guide audio on the same cable.", "output_title": "Line- or mic-level LTC", "power_desc": "Run the Core from a USB-C power bank or a recorder's 5 V accessory port. A CR123A backup cell preserves clock and GNSS state between power cycles.", "power_title": "Production-friendly power", "render_alt": "Rendering of the Holly LTC Core case: a translucent square tray and lid with six control-button openings.", "status_label": "Pre-production", "status_text": "Holly LTC Core is in pre-production. Orders are not yet open, and specifications, pricing, and availability are not yet announced. Request hardware updates for release news.", "title": "Holly LTC Core: GPS-disciplined LTC, independent of a phone" }, "cta": { "button": "Download Holly Timecode", "secondary": "Request hardware updates", "subtitle": "Holly Timecode is available now. Request updates on Holly LTC Core and the 1U rack model.", "title": "Start with the free app today" }, "family": { "fact_engine": "Purpose-built SMPTE 12M encoder", "fact_free": "Every app feature included free", "fact_identical": "Consistent output across platforms", "fact_library": "Verified against reference vectors", "fact_wired": "Wired output, never Bluetooth", "text": "One timecode system, from app to rack" }, "faq": { "a1": "Yes. Every feature is included on every platform. Optional support subscriptions help fund continued development but do not change the app or unlock additional features.", "a2": "For jam sync and many field workflows, yes. The app generates SMPTE LTC over a wired signal path and makes the correct setup quick to recall. Dedicated hardware is the better fit for an independent, always-on source that must remain GPS-disciplined throughout the day.", "a3": "In the hardware, GPS provides a common time reference, allowing separate Core units to agree on the same second without first being jammed together. In the app, GeoLTC uses the LTC user bits to carry the date and, optionally, position and heading alongside the count.", "a4": "Not yet. Holly LTC Core is in pre-production, and orders are not open. Specifications remain subject to production validation; pricing and availability are not yet announced. Request hardware updates for release news.", "a5": "Use a wired signal path. On iPhone and iPad, connect a headphone or USB audio adapter; on Mac, use any wired audio output; on Apple TV, use HDMI audio. The Core uses a 3.5 mm jack switchable between line and mic level, and a TS-to-BNC cable connects equipment with a BNC timecode input. Bluetooth is not offered for timecode output.", "a6": "No. The Core is a standalone generator: power it over USB-C, connect an active GNSS antenna, and select a timecode format. The app and hardware share the same timecode engine and operating principles, but neither depends on the other.", "q1": "Is Holly Timecode really free?", "q2": "Can the app replace a hardware timecode generator?", "q3": "What does GPS add to timecode?", "q4": "When can I buy the Holly LTC Core?", "q5": "Which output should I use?", "q6": "Does the hardware need the app?", "title": "Frequently asked questions" }, "footer": { "copyright": "© 2026 Patrick Tudor. All rights reserved.", "holly_site": "hollytimecode.com", "legal": "Legal", "privacy": "Privacy Policy", "product": "Products", "secondstick_site": "secondstick.app", "sites": "Sites", "tagline": "Professional SMPTE timecode for app, field, and rack workflows.", "trademark": "iPhone, iPad, Mac, Apple TV, and App Store are trademarks of Apple Inc." }, "hero": { "badge_df": "29.97 DF and NDF", "badge_gps": "GeoLTC metadata", "badge_ltc": "SMPTE 12M linear timecode", "badge_rates": "Six production formats", "cta_app": "Get Holly Timecode", "cta_hardware": "Explore the hardware", "description": "Generate frame-accurate SMPTE LTC on the iPhone, iPad, Mac, and Apple TV you already own. For dedicated operation, Holly LTC Core brings the same workflow to a standalone, GPS-disciplined generator.", "phone_alt": "Holly Timecode on iPhone showing 09:41:00:00, a Start LTC button, and a USB audio route marked LTC-safe.", "platforms": "Holly Timecode is free today · Holly LTC Core is in pre-production", "tagline": "Production timecode, from app to GPS hardware", "title": "Every camera on set.\nOne shared second.", "tv_alt": "Holly Timecode display mode on Apple TV: large 09:41:00:00 digits, a Generating badge, and 24 fps." }, "holly": { "callout": "Every feature is free. Optional support subscriptions are simply a way to support continued development.", "cta": "Get Holly Timecode on the App Store", "cta_site": "Visit hollytimecode.com", "engine_desc": "The SMPTE 12M encoder is verified against reference vectors for consistent frame counts and user bits on every platform.", "engine_title": "SMPTE 12M, precisely implemented", "geoltc_desc": "Carry the date, a fixed position, or live GPS with heading, pitch, and roll inside the timecode stream.", "geoltc_title": "GeoLTC user bits", "label": "The App", "lead": "Choose a timecode format, recall a preset, confirm the wired output, and start generating. Holly Timecode makes a correct LTC setup quick to establish and easy to verify before the first jam.", "mac_alt": "Holly Timecode display mode on a Mac: a full-screen 09:41:00:00 wall clock with a green status border.", "mac_desc": "Keyboard shortcuts for start, stop, lock, test tone, and display mode, right at the cart.", "mac_title": "Native on the Mac", "presets_desc": "Save a setup per client, truck, or camera package and recall it in one tap. Presets sync through your own iCloud.", "presets_title": "Named presets", "private_desc": "No account, no analytics, no ads. Everything runs on the device.", "private_title": "Private by design", "rates_desc": "23.976, 24, 25, 29.97 drop-frame, 29.97 non-drop, and 30 fps. Both counting modes are available at 29.97.", "rates_title": "Six production formats", "screenshot_alt": "Holly Timecode on iPhone showing 09:41:00:00, a Start LTC button, and a USB audio route marked LTC-safe.", "title": "Holly Timecode: professional LTC from the devices you already own", "tv_alt": "Holly Timecode display mode on Apple TV: large 09:41:00:00 digits, a Generating badge, and 24 fps.", "tv_desc": "A full-screen wall clock with LTC over HDMI audio, burn-in drift, and a status border you can read across the room.", "tv_title": "Apple TV display mode", "wired_desc": "Route detection confirms that LTC is leaving through headphone, USB audio, or HDMI. Bluetooth is excluded from the timecode signal path.", "wired_title": "Verified wired output" }, "how": { "closing": "The app follows the device clock; the Core follows GPS. Both produce the same SMPTE LTC format on the wire.", "geoltc_date": "Date: the UTC calendar date, the mode the Core hardware uses.", "geoltc_live": "Live: an eight-frame cycle with latitude, longitude, altitude, heading, attitude, velocity, and a checksum, refreshing about three times a second at 24 fps.", "geoltc_static": "Static: one frame carrying the position to about a kilometer.", "geoltc_text": "GeoLTC carries location metadata alongside timecode without another cable:", "geoltc_title": "What GeoLTC puts in the user bits", "label": "How It Works", "lead": "GPS gives every receiver the same reference second. The Holly family turns that reference into SMPTE timecode and, when requested, carries location in the same stream.", "step_four_desc": "The 32 user bits carry the UTC date, or with GeoLTC in the app, a compact position and heading.", "step_four_title": "Metadata in the user bits", "step_one_desc": "The GNSS receiver resolves UTC and provides a precise reference pulse at the top of every second.", "step_one_title": "UTC and reference pulse", "step_three_desc": "Each frame becomes 80 biphase-mark bits in the selected format, with drop-frame counting when it applies.", "step_three_title": "SMPTE 12M encoding", "step_two_desc": "The timing core aligns its frame count to the reference pulse and continuously calibrates its holdover clock against GPS.", "step_two_title": "Disciplined clock", "title": "From GPS reference to production timecode" }, "lineup": { "app_description": "A focused LTC generator with named presets, explicit DF and NDF selection, and optional GeoLTC metadata in the user bits.", "app_kind": "App for iPhone, iPad, Mac, and Apple TV", "app_link": "Learn more", "app_name": "Holly Timecode", "app_status": "Free on the App Store", "core_description": "Dedicated format controls, GPS discipline, temperature-compensated holdover, and switchable line- or mic-level LTC in a pocket-sized enclosure.", "core_kind": "Handheld GPS-disciplined generator", "core_link": "Explore the Core", "core_name": "Holly LTC Core", "core_status": "Pre-production", "rack_description": "The Core's GPS-disciplined timebase in a 1U format, with a large LED timecode readout and rear-panel balanced XLR output.", "rack_kind": "1U rackmount generator", "rack_link": "Explore the rack", "rack_name": "Holly LTC Rack", "rack_status": "In development", "secondstick_description": "A complete digital toolkit for the second AC: slate, LTC, GPS logging, sun and moon tracking, and AR shadow preview.", "secondstick_kind": "App for iPhone and iPad", "secondstick_link": "Explore Second Stick", "secondstick_name": "Second Stick", "secondstick_status": "Companion app", "subtitle": "The free app covers fast, flexible LTC. Dedicated Holly hardware adds an independent, always-on timebase disciplined by GPS.", "title": "One workflow, from pocket to rack" }, "locale": { "label": "Language" }, "nav": { "app": "The App", "faq": "FAQ", "get_the_app": "Get the App", "hardware": "Hardware", "how": "How It Works", "products": "Products", "secondstick": "Second Stick", "toggle_menu": "Toggle navigation" }, "privacy": { "apps_holly": "Holly Timecode privacy policy", "apps_secondstick": "Second Stick website", "apps_text": "Holly Timecode and Second Stick run on your device, and each publishes its own privacy policy:", "apps_title": "The Apps Have Their Own Policies", "changes_text": "If this policy changes, we will update the effective date here before the revised policy goes live.", "changes_title": "Changes to This Policy", "contact_email": "support{'@'}hollytimecode.com", "contact_text": "Questions about this privacy policy:", "contact_title": "Contact", "effective_date": "Effective Date: September 2, 2026", "links_text": "Links to the App Store and to the product websites leave this site. Those services apply their own policies once you arrive.", "links_title": "Links to Other Sites", "logs_text": "Like most web servers, ours records standard access logs: IP address, requested page, time of request, and browser identification. We retain these logs only to operate and secure the site, never for advertising, profiling, or sale.", "logs_title": "Server Logs", "short_text": "gpsltc.com is an informational product site. It uses no cookies or analytics and has no accounts or forms.", "short_title": "The Short Version", "site_no_accounts": "No accounts, sign-in, or forms", "site_no_analytics": "No analytics, tracking scripts, or third-party embeds", "site_no_cookies": "No cookies", "site_text": "This site is static HTML served from our own server:", "site_theme": "If you choose a light or dark theme, the preference is saved in your browser's local storage and never leaves your device. Clearing this site's data removes it.", "site_title": "What This Website Does Not Do", "title": "Privacy Policy" }, "rack": { "art_alt": "A biphase-mark LTC frame arranged as a circular timecode dial in the Holly Timecode color palette.", "bus_desc": "The rack model uses the same GPS discipline, format controls, and temperature-compensated holdover as the handheld Core.", "bus_title": "The Core timebase inside", "cta_interest": "Request hardware updates", "display_desc": "A bright eight-digit LED display presents the running HH:MM:SS:FF count at a glance, even from across the room.", "display_title": "A full timecode readout", "label": "1U Hardware", "lead": "Holly LTC Rack brings the Core into a studio-ready 1U format, pairing a large front-panel timecode display with balanced LTC on a rear XLR.", "panel_desc": "A rear-panel balanced XLR output is designed for a clean connection to distribution and production equipment.", "panel_title": "Balanced rear-panel output", "status_text": "Holly LTC Rack is in development alongside the Core. Orders are not yet open, and final configuration, pricing, and availability are not yet announced.", "title": "Holly LTC Rack: the Core timebase, ready for the rack" }, "secondstick": { "ar_desc": "Place a block on the location and scrub from sunrise to sunset to see where the shadow lands.", "ar_title": "AR shadow preview", "callout": "Every feature is free, with optional subscriptions for those who want to support continued development.", "cta": "Visit secondstick.app", "label": "Companion App", "lead": "Second Stick combines the Holly timecode engine with the tools a second AC needs throughout the day: a digital slate, location records, sun and moon data, and AR shadow preview.", "location_desc": "Decimal degrees, DMS, MGRS, and UTM, with GPS logs you can export.", "location_title": "Location in every format", "ltc_desc": "Generate SMPTE 12M in all six production formats, with optional GeoLTC metadata in the user bits.", "ltc_title": "Production timecode built in", "slate_desc": "Track scene, take, camera roll, and sound roll with unlimited history, then export CSV, JSON, or DaVinci Resolve markers.", "slate_title": "Digital slate", "sun_desc": "Golden hour, blue hour, and moon phase from the NOAA solar model.", "sun_title": "Sun and moon", "title": "Second Stick: timecode, slate, and location in one app" }, "specs": { "app_bits_label": "User bits", "app_bits_value": "UTC date, GeoLTC static, GeoLTC live, custom, or none", "app_format_label": "Format", "app_format_value": "SMPTE 12M linear timecode, 80 bits per frame", "app_output_label": "Output", "app_output_value": "Wired headphone or USB audio at the negotiated sample rate; HDMI audio on Apple TV; levels from 0 to −18 dBFS", "app_platforms_label": "Platforms", "app_platforms_value": "iPhone, iPad, Mac, and Apple TV", "app_price_label": "Price", "app_price_value": "Free, with optional support subscriptions", "app_rates_label": "Rate / counting", "app_rates_value": "23.976, 24, 25, 29.97 DF, 29.97 NDF, and 30 fps; fractional rates as exact 24000/1001 and 30000/1001", "app_title": "Holly Timecode", "core_clock_label": "Timing core", "core_clock_value": "GPS-disciplined timing core with a ±3.5 ppm temperature-compensated holdover clock", "core_controls_label": "Controls", "core_controls_value": "Six illuminated format buttons, UTC offset up and down, and GNSS LOCK and HOLDOVER indicators", "core_gnss_label": "GNSS", "core_gnss_value": "Multi-constellation GNSS with a precise reference pulse; biased SMA input for an active antenna", "core_holdover_label": "Holdover", "core_holdover_value": "Design target: no more than 0.3 s per day before calibration; calibrated against GPS every hour while locked", "core_output_label": "Output", "core_output_value": "3.5 mm TRS: LTC on the tip at line (0.87 Vpp) or mic (11 mVrms) level, with scratch mic on the ring", "core_power_label": "Power", "core_power_value": "USB-C 5 V under 300 mA; CR123A backup for the clock and GNSS state", "core_size_label": "Size", "core_size_value": "85 × 85 × 33 mm translucent enclosure", "core_title": "Holly LTC Core — design targets", "rack_display_label": "Readout", "rack_display_value": "Two 0.56-inch four-digit LED modules showing HH:MM SS.FF", "rack_driver_label": "Timebase", "rack_driver_value": "The same GPS-disciplined timebase and holdover system as Holly LTC Core", "rack_output_label": "Output", "rack_output_value": "Balanced LTC on a rear-panel XLR", "rack_panel_label": "Panel", "rack_panel_value": "1U rackmount format; final mechanical specification pending", "rack_status_label": "Status", "rack_status_value": "In development; final configuration and availability not yet announced", "rack_title": "Holly LTC Rack — design targets", "ss_location_label": "Location", "ss_location_value": "Decimal degrees, DMS, MGRS, and UTM with exportable GPS logs", "ss_platforms_label": "Platforms", "ss_platforms_value": "iPhone and iPad", "ss_price_label": "Price", "ss_price_value": "Free, with optional support subscriptions", "ss_slate_label": "Slate", "ss_slate_value": "Scene, take, camera roll, sound roll; unlimited history; CSV, JSON, and DaVinci Resolve marker export", "ss_sun_label": "Sun and moon", "ss_sun_value": "NOAA solar model, golden and blue hour, moon phase, AR shadow preview", "ss_timecode_label": "Timecode", "ss_timecode_value": "The same SMPTE 12M engine with GeoLTC user bits", "ss_title": "Second Stick", "title": "Specifications and design targets" }, "theme": { "dark": "Dark", "label": "Theme", "light": "Light", "switch_to_dark": "Switch to dark theme", "switch_to_light": "Switch to light theme", "system": "System" } }