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Iannouncer Pro - 1 Year Subscription
Requires IANNOUNCER PRO - MSFS2024 (lifetime license). This subscription does not work on its own.
Unlock every voice and crew feature
Your lifetime license brings the flight to life. The subscription brings the whole crew: ATC talks to you from gate to gate, the ground crew pushes you back, flight attendants call the flight deck, and every announcement and callout gets a voice. One year of every advanced feature, for a single one-time payment.
Everything the subscription ... Requires IANNOUNCER PRO - MSFS2024 (lifetime license). This subscription does not work on its own.
Unlock every voice and crew feature
Your lifetime license brings the flight to life. The subscription brings the whole crew: ATC talks to you from gate to gate, the ground crew pushes you back, flight attendants call the flight deck, and every announcement and callout gets a voice. One year of every advanced feature, for a single one-time payment.
Everything the subscription adds
- Gate-to-gate ATC: from clearance, pushback and taxi through takeoff, approach, landing and taxi in, the panel offers the requests and replies that fit the phase. Auto readback, auto tuning and auto transponder, CPDLC datalink and PDC clearance, AI traffic you can hear on frequency, and Chinese / English / Japanese phraseology with VFR support.
- Ground and cabin comms: talk to the ground crew for pushback and engine start, integrated with GSX Pro. Flight attendants report boarding, doors, cabin service and cabin ready over the interphone, and the first officer can answer for you.
- TTS and AI voices: system TTS and AI voices speak your cabin announcements, first officer callouts and crew calls. Pick up to three announcement languages per route, choose a female or male voice, and get dedicated AI-voiced scripts for imported airlines. Any airline can be announced, even without a recording pack.
- RAAS runway alerts: voice alerts on approach, when entering a runway and for the runway remaining, with the alert text shown on your cockpit displays.
- Interactive checklists: grouped by phase and ticked automatically when the item can be read from the aircraft.
- Flight info bar: an always-on-top, click-through bar over MSFS with ground speed, airspeed, vertical speed, altitude, heading, G-force, flight phase, COM1, transponder and ETA. Drag to arrange it, and use it as an OBS source.
- Panel streaming and web mirror: capture PFD, ND, MCDU and other displays into their own windows for a second monitor, or view and operate iAnnouncer from a tablet or phone in the browser.
- Recording and replay: record the whole flight and replay it with slow motion and camera moves; landings are recorded automatically.
- Cloud backup: back up your logbook and career to the cloud and restore them on another PC.
- More aircraft and ratings: dedicated support for the iniBuilds A380 / A220, plus every career type rating beyond the A320 and 737.
- Official PA packs: subscribers can unlock professionally produced announcement packs, airline by airline, with Official PA vouchers in the app.
How it works
- One-time payment, valid for 1 year from redemption, and it never renews automatically.
- After purchase you receive a subscription code. Enter it in the app with the email address of your iAnnouncer Pro license.
- When the year ends, everything in your lifetime license keeps working. Only the subscription features pause until you renew.
Give your flights a full crew. Subscribe today.
iFly 737 Max 8 Stream Deck Profile
The iFly 737 Max 8 Stream Deck Profile provides a comprehensive set of over 835 custom-designed, pre-programmed buttons for use with the iFly Boeing 737 Max 8 in Microsoft Flight Simulator. Compatible with various Stream Deck models, this add-on enhances user control over aircraft features like cockpit functions, ground services, and cabin settings. The installation process is streamlined through an automated setup, and product updates are regularly provided to ensure ongoing functionality and s... The iFly 737 Max 8 Stream Deck Profile provides a comprehensive set of over 835 custom-designed, pre-programmed buttons for use with the iFly Boeing 737 Max 8 in Microsoft Flight Simulator. Compatible with various Stream Deck models, this add-on enhances user control over aircraft features like cockpit functions, ground services, and cabin settings. The installation process is streamlined through an automated setup, and product updates are regularly provided to ensure ongoing functionality and support.
iFly Boeing 737 Max 8 Autopilot Panel for Stream Deck Plus
iFly Boeing 737 Max 8 Autopilot Profile
With the Flight Panels Autopilot Profile for the iFly Boeing 737 Max 8, you can control autopilot, communications, navigation, EFIS, transponder, internal lighting and more, all from the Stream Deck +’s physical buttons, LCD touchscreen and rotary dials.
Watch speed, heading, vertical speed, altitude and frequencies update in real time as you turn the dials, adding a new level of realism to your flight simulation experience.
For a comprehens... iFly Boeing 737 Max 8 Autopilot Profile
With the Flight Panels Autopilot Profile for the iFly Boeing 737 Max 8, you can control autopilot, communications, navigation, EFIS, transponder, internal lighting and more, all from the Stream Deck +’s physical buttons, LCD touchscreen and rotary dials.
Watch speed, heading, vertical speed, altitude and frequencies update in real time as you turn the dials, adding a new level of realism to your flight simulation experience.
For a comprehensive list of features and functionality (which may vary between aircraft), please see below.
As the current version of the iFly Boeing 737 Max 8 is a pre-release, additional features and functionality will be added to this product in future updates. Features which aren't currently available are represented by an 'INOP' sticker.
Flight Control Panel 1 (FCP)
Button Controls: Auto Throttle ARM (A/T ARM), CPT Flight Director (CPT F/D), N1, VNAV, HDG SEL, SPEED, LVL CHG, and LNAV. Rotary Dials & LCD Screen: Real-time values for heading, altitude, and vertical speed. Rotate the rotary dials left or right to increase or decrease values. Heading: Press the rotary dial to toggle HDG SEL mode; Altitude: Press the rotary dial to toggle LVL CHG mode; Vertical Speed (V/S): Press the rotary dial to toggle VS mode.
Flight Control Panel 2 (FCP) / Communications
Button Controls: VOR LOC, APP, ALT HLD, V/S, C/O, SPD INTV, ALT INTV. Rotary Dials & LCD Screen: Real-time frequency values for COM1/COM2 (Active and Standby). Rotate rotary dials 1 and 2 to change the standby frequency for COM1 and dials 3 & 4 for COM2. Tap the screen or press a standby rotary dial to swap between Standby and Active.
NAV Radios
Button Controls: CPT CMD, F/O CMD, CPT CWS, F/O CWS, F/O Flight Director (FO F/D), Disengage. Rotary Dials & LCD Screen: Real-time frequency values for NAV1/NAV2 (Active and Standby). Rotate rotary dials 1 and 2 to change the standby frequency for NAV1 and dials 3 & 4 for NAV2. Tap the screen or press a standby rotary dial to swap between Standby and Active.
Lighting
Button Controls: Strobe, Beacon, Wheel Well, Logo, Wing, Landing, Taxi, and Turnoff. Rotary Dials: Rotate the rotary dials to increase or decrease light intensity.
EFIS & Transponder
Button Controls: VOR1, WXR, STA, WPT, ARPT, DATA, POS, TERR. Rotary Dials: Rotate the rotary dials to increase or decrease each of the transponder digits.
EFIS & Misc
Button Controls: FPV, MTRS, VOR2, VSD. Rotary Dials: Real-time values for CPT Course, BARO (IN), BARO (HPA), FO Course. Rotate the rotary dials left or right to increase or decrease values. BARO (IN): Press the rotary dial or tap the LCD to toggle STD Mode, BARO (HPA): Press the rotary dial or tap the LCD to toggle STD Mode.
iFly Boeing 737 Max 8 Stream Deck Profile
iFly 737 Max 8 Stream Deck Profile
Introducing the ultimate Boeing Stream Deck Profile for the iFly Boeing 737 Max 8 and Microsoft Flight Simulator 2020/2024, featuring 835+ custom designed (over 1100 images!) and pre-programmed buttons across 34 pages, that match the unique look and feel of the aircraft.
Beyond cockpit buttons, toggles and switches, the iFly Boeing 737 Max 8 Stream Deck Profile offers all of the latest features and functionality found in our recent releases, including gr... iFly 737 Max 8 Stream Deck Profile
Introducing the ultimate Boeing Stream Deck Profile for the iFly Boeing 737 Max 8 and Microsoft Flight Simulator 2020/2024, featuring 835+ custom designed (over 1100 images!) and pre-programmed buttons across 34 pages, that match the unique look and feel of the aircraft.
Beyond cockpit buttons, toggles and switches, the iFly Boeing 737 Max 8 Stream Deck Profile offers all of the latest features and functionality found in our recent releases, including ground services, aircraft performance metrics, ATIS information, cockpit and cabin feature controls, walk around support and much more.
So, whether you want to manage seating positions, camera viewpoints, cargo and passenger doors, cabin lighting scenes or even the first class curtain, the iFly Boeing 737 Max 8 Stream Deck profile puts you in control, whilst creating a truly professional and immersive Flight Simulation experience.
Available Product Versions
This product includes both 32 and 15 key profiles. The 32 key profiles are compatible with the Stream Deck XL, Stream Deck Mobile (iOS & Android) and Corsair Xeneon Edge, whilst the 15 key profiles are designed for the Stream Deck MK. 2, Stream Deck Mobile and Corsair Xeneon Edge.
Installation of our profiles is extremely quick and simple. Once purchased, you’ll be provided with an installer that will automatically install and configure all of the necessary software. Need help? Our friendly team is on hand via email, live chat and Discord.
Improved Physics Standart
IMPROVED PHYSICS FOR MFS 2. 0. 5 / Microsoft Flight Simulator Improvement in the ground and control surface This addon changes assignments for better and more realistic aircraft behavior. Complement that adjusts several important parameters for the feeling of flight and a more realistic behavior. Improved Physics changes the total of 20 aircraft STANDARD Version.
INSTALL
uninstall and install the new version (IMPROVED PHYSICS FOR MFS 2. 0. 5) IN YOUR COMMUNITY folder;IMPROVED PHYSICS FOR MFS 2. 0. 5 / Microsoft Flight Simulator Improvement in the ground and control surface This addon changes assignments for better and more realistic aircraft behavior. Complement that adjusts several important parameters for the feeling of flight and a more realistic behavior. Improved Physics changes the total of 20 aircraft STANDARD Version.
INSTALL
uninstall and install the new version (IMPROVED PHYSICS FOR MFS 2. 0. 5) IN YOUR COMMUNITY folder;
Improved Physics Xbox Control 1.0.3
Improved ground and control surface, especially for controls like XBOX which have a high sensitivity with a lot of attack when using the elevator (depth). There is no need for internal configuration in the simulator, just copy it to the Community mass and you can enjoy it. The addon contains settings for the plansImproved ground and control surface, especially for controls like XBOX which have a high sensitivity with a lot of attack when using the elevator (depth). There is no need for internal configuration in the simulator, just copy it to the Community mass and you can enjoy it. The addon contains settings for the plans
Inflight Atc-TALK Back To Atc!
inFlight ATC — The tower is talking. Talk back.
Live AI air traffic control for Microsoft Flight Simulator 2024 & 2020 — and you answer with your own voice, not a menu.
Every MSFS flight happens on a silent frequency — or a menu. inFlight ATC replaces that silence with a living one: controllers who call your callsign, traffic that reads back around you, and handoffs that pass you from Clearance to Ground to Tower to Departure to Center and back down to the gate. When it's your tu... inFlight ATC — The tower is talking. Talk back.
Live AI air traffic control for Microsoft Flight Simulator 2024 & 2020 — and you answer with your own voice, not a menu.
Every MSFS flight happens on a silent frequency — or a menu. inFlight ATC replaces that silence with a living one: controllers who call your callsign, traffic that reads back around you, and handoffs that pass you from Clearance to Ground to Tower to Departure to Center and back down to the gate. When it's your turn, you hold push-to-talk and say it out loud — like a real pilot.
Gate to gate
- IFR clearance delivery — copy your clearance, squawk, and departure frequency, then read it back.
- Pushback and taxi — request pushback (manual steering optional), get real taxi routes with hold-shorts from the actual airport layout, and follow your route on a live taxi map.
- Takeoff and departure — line up when ready, climb via your SID or fly vectors, and get handed off with altitudes that match your plan.
- Enroute — Center handoffs across 4,200 real sectors worldwide, with the frequencies and controller names the sim itself uses, plus cruise altitude management and top-of-descent advisories.
- Approach and landing — descent clearances from your real route, vectors or own navigation, request any runway, tower clearance with wind, go-arounds, "exit next taxiway".
- Arrival and parking — taxi in, hear "ATC service terminated, good day" at the gate, then fly the return leg without restarting.
VFR is covered too: pattern work, flight following, VFR clearances, and non-towered fields where you announce yourself on the advisory frequency.
ATC runs the AI traffic too
Ground and Tower hold, sequence, and clear the sim's own AI aircraft, and you take your place in the same queue for the runway.
Your voice is the interface
- Real push-to-talk — on a keyboard key or a yoke/throttle/gamepad button, with your choice of microphone, including a VR headset mic.
- On-device speech recognition — transcribed locally and matched to proper phraseology by a local language model. No cloud, no per-word fees, no audio leaving your PC.
- Understands pilot-speak — "niner", "tree", "fife", flight levels, the phonetic alphabet.
- Readback checking — read back the wrong runway, altitude, squawk, or frequency and ATC catches it, like a real controller.
- Unlimited controller voices — generated locally and never metered, with regional accents where you fly and a real radio sound, squelch and all.
- Or click — every transmission is also a clickable card while you learn.
Three display modes, plus the cockpit and VR
- Beginner — full window with complete transcripts, clickable responses, and status badges.
- Intermediate — translucent in-sim HUD with response options floating over the sim.
- Advanced — a minimal bar, voice only. Catch your callsign, copy the clearance you hear once, read it back — the exact skill you need before VATSIM, PilotEdge, or POSCON.
- In-game panel and VR — open inFlight ATC from the sim's toolbar to see what ATC said, pick your reply, and talk without leaving the cockpit. COM frequencies and the taxi map open as their own in-sim windows, with text sized for VR.
Deep sim integration
- SimConnect link to MSFS 2024/2020 — position, radios, and transponder in real time. Tune COM1 in the app or the cockpit; power the radio off and the frequency goes silent.
- Real airport data — taxi routes, runways, gates, and frequencies from the sim's own facilities, with realistic role collapse at tower-only and uncontrolled fields.
- Regional phraseology — ICAO, FAA, UK CAP 413, EASA, NavCanada, and CASA — chosen automatically by where you fly.
- SimBrief built in — import your OFP in one click, or create a new SimBrief plan without leaving the app. Flight plans filed in MSFS work too.
- Your flight survives a restart — if the app closes while you're airborne, relaunch and pick up with the same controller, clearance, and squawk.
- A living frequency — AI traffic calls up and reads back around you; step on a call and you'll know.
One-time purchase. No subscription.
AI ATC subscriptions run up to $190 per year, forever. inFlight ATC's voices and speech recognition run on your PC, so nothing is metered — pay once, own it, updates included. Practice without pressure at 2 a. m. , then connect to the network sounding like you've done it for years. A beginner-friendly guide is built in, with a page of everything you can say to ATC, an on-device AI help assistant, and one-click issue reporting that attaches your flight data.
inFlight ATC is for in-sim practice and immersion only — not a real-world training device, and not affiliated with any aviation authority or with VATSIM, PilotEdge, or POSCON. Just the best warm-up act they've ever had.
Ini A300-600r(f) A/p Panel For Sd+
Control your aircraft's autopilot systems with a push, tap and twist.
With the Flight Panels Autopilot Panel for the iniBuilds A300-600R(F), you can manage your aircraft's autopilot systems using the physical buttons, LCD touchscreen and rotary dials on your Stream Deck Plus (+) to create a truly immersive experience.
EFIS Panel
Button Controls: Flight Director (FD), Decision Height (DH), Flight Path Angle (FPA), Constraints (CSTR), Waypoints (WPT), VOR (VOR. D), Non-Direction... Control your aircraft's autopilot systems with a push, tap and twist.
With the Flight Panels Autopilot Panel for the iniBuilds A300-600R(F), you can manage your aircraft's autopilot systems using the physical buttons, LCD touchscreen and rotary dials on your Stream Deck Plus (+) to create a truly immersive experience.
EFIS Panel
Button Controls: Flight Director (FD), Decision Height (DH), Flight Path Angle (FPA), Constraints (CSTR), Waypoints (WPT), VOR (VOR. D), Non-Directional Beacon (NDB), Airport (ARPT), VOR/LOC Mode (V/L), Land Mode (Land).
Rotary Dials & LCD Screen: PFD Brightness, ND Brightness, CPT ND Mode and CPT ND Range. Rotate the rotary dials to increase or decrease values or to cycle between options. Tapping on the LCD screen will set PFD & ND brightness to 100% whilst tapping on ND Mode & Range will cycle between available options.
Flight Control Panel (FCP)
Button Controls: Autothrottle (A/THR), Altitude Hold (ALT HLD), Level Change (LVL CHG), Profile Mode (Profile), Heading Select (HDG SEL), NAV Mode (NAV).
Rotary Dials & LCD Screen: Real-time values for speed, heading, altitude & vertical speed. Rotate the rotary dials left or right to increase or decrease values. Speed (SPD): Tap the screen to enable pre set and press the rotary dial to enable selected mode. Altitude (ALT): Tap the screen to change between 100/1000 increments and press the rotary dial for Altitude Pull. Heading (HDG): Tap the screen to change bank mode and press the rotary dial to enable heading selected mode. Vertical Speed (V/S): Press the rotary dial to enter V/S mode.
Radios & Communications
Button Controls: Autopilot 1 (AP1), Autopilot 2 (AP2), CWS/CMD.
Rotary Dials & LCD Screen: Real-time frequency values for COM1/COM2 (Active and Standby). Rotate rotary dials 1 and 2 to change the standby frequency for COM1 and dials 3 & 4 for COM2. Tap the screen or press a standby rotary dial to swap between Standby and Active.
XPDNR/TCAS
Button Controls: Above/Below (ABV/BLW) (Long press for N), TCAS Range, ALT TCAS System (Long press to turn off), TCAS Test and IDENT.
Rotary Dials & LCD Screen: Rotate the rotary dials to increase or decrease values or to cycle between options. Tapping on the LCD screen will cycle between options for XPDNR Mode and XPDNR Systems.
Navigation
Button Controls: ADF1 Transfer (ADF 1 TFR), ADF 1 Tone, ADF/ANT Mode
Rotary Dials & LCD Screen: Rotate rotary dials 1 and 2 to change the active ADF 1 frequency and rotary dials 3 & 4 to change the standby frequency. Press any rotary dial to change between active and standby.
Ini A320neo Autopilot Panel For Sd+
Control your aircraft's autopilot systems with a push, tap and twist.
With the Flight Panels Autopilot Panel for the iniBuilds A320neo (included with Sim Update 15), you can manage your aircraft's autopilot systems using the physical buttons, LCD touchscreen and rotary dials on your Stream Deck Plus (+) to create a truly immersive experience.
Flight Control Panel (FCP)
Button Controls: Flight Director (FD), AutoPilot 1 (AP 1), AutoPilot 2 (AP 2), Expedite Mode (EXPED), Landing... Control your aircraft's autopilot systems with a push, tap and twist.
With the Flight Panels Autopilot Panel for the iniBuilds A320neo (included with Sim Update 15), you can manage your aircraft's autopilot systems using the physical buttons, LCD touchscreen and rotary dials on your Stream Deck Plus (+) to create a truly immersive experience.
Flight Control Panel (FCP)
Button Controls: Flight Director (FD), AutoPilot 1 (AP 1), AutoPilot 2 (AP 2), Expedite Mode (EXPED), Landing System (LS), Localizer (LOC), Auto Throttle (A/THR), Approach Mode (APPR).
Rotary Dials & LCD Screen: Real-time values for heading, altitude, vertical speed and speed. Rotate the rotary dials left or right to increase or decrease values. Speed (SPD): Press the rotary dial to toggle Managed Mode, press the LCD to toggle SPD / MACH mode; Heading (HDG): Press the rotary dial to enable heading Select Mode, or tap the LCD to enable heading Managed Mode; Altitude (ALT): Press the rotary dial to select altitude or tap LCD to toggle 100/1000; Vertical Speed (V/S): Press the rotary dial or LCD to enter V/S mode.
Radios & Communications
Rotary Dials & LCD Screen: Real-time frequency values for COM1/COM2 (Active and Standby). Rotate rotary dials 1 and 2 to change the standby frequency for COM1 and dials 3 & 4 for COM2. Tap the screen or press a standby rotary dial to swap between Standby and Active.
Transponder, BARO & Lighting
Rotate the rotary dials to increase or decrease each of the transponder digits. For additional values (such as lighting), rotate the rotary dials left or right to increase or decrease values.
About Flight Panels
Our mission is to become an integral part of any Microsoft Flight Simulator setup, through the creation of professional, highly detailed, modern and consistency designed Stream Deck profiles, which maximise the immersive experience of Microsoft Flight Simulator. Our focus on user design, user experience and product research, backed by regular product updates and dedicated industry leading support - is there to provide our community with the confidence that a key part of their Flight Simulator setup will be regularly updated and supported.
Frequently Asked Questions
Q: Do you provide regular product updates?
We regularly update our Stream Deck Profiles to include new features, functionality and bug fixes and we're delighted to provide these free of cost, for the duration of the products lifespan. Announcements are also published on our Discord server and Release Notes are available on our product updates blog.
Q: What if I need support?
We provide free industry leading support by email (support[at]flightpanels. io), Discord and Live Chat (available on the bottom right hand corner of each webpage). On average, we respond to support requests in less than 15 minutes!
Q: How are your products installed?
Installation is performed through the Flight Panels All-In-One Installer, which automatically installs and configures third party applications (FSUIPC7, PilotsDeck, . NET Runtimes etc. ) to make installation a breeze.
Q: How is the product licensed?
This product is for personal and home use. For commercial use and/or where used to generate revenue (directly or indirectly) a commercial license is required. Please contact support[at]flightpanels. io for further information.
Q: How can I keep up to date with the latest news?
Blog: https://flightpanels. io/blog/news
Product Updates: https://flightpanels. io/blog/product-updates
Support Portal: https://support. flightpanels. io
Instagram: https://instagram. com/flightpanels
Threads: https://threads. net/flightpanels
Discord: https://flightpanels. io/discord
iniBuilds A300 Autopilot Panel for Stream Deck Plus
iniBuilds A300 Autopilot Profile
With the Flight Panels Autopilot Profile for the iniBuilds A300, you can control autopilot, communications, navigation, EFIS, transponder, internal lighting and more, all from the Stream Deck +’s physical buttons, LCD touchscreen and rotary dials.
Watch speed, heading, vertical speed, altitude and frequencies update in real time as you turn the dials, adding a new level of realism to your flight simulation experience.
For a comprehensive list of fe... iniBuilds A300 Autopilot Profile
With the Flight Panels Autopilot Profile for the iniBuilds A300, you can control autopilot, communications, navigation, EFIS, transponder, internal lighting and more, all from the Stream Deck +’s physical buttons, LCD touchscreen and rotary dials.
Watch speed, heading, vertical speed, altitude and frequencies update in real time as you turn the dials, adding a new level of realism to your flight simulation experience.
For a comprehensive list of features and functionality (which may vary between aircraft), please see below.
Flight Control Panel (FCP)
Button Controls: Autothrottle (A/THR), Altitude Hold (ALT HLD), Level Change (LVL CHG), Profile Mode (Profile), Heading Select (HDG SEL), NAV Mode (NAV), VOR/LOC Mode (V/L), Land Mode (LAND).
Rotary Dials & LCD Screen: Real-time values for speed, heading, altitude & vertical speed. Rotate the rotary dials left or right to increase or decrease values. Speed (SPD): Tap the screen to enable pre set and press the rotary dial to enable selected mode. Altitude (ALT): Tap the screen to change between 100/1000 increments and press the rotary dial for Altitude Pull. Heading (HDG): Tap the screen to change bank mode and press the rotary dial to enable heading selected mode. Vertical Speed (V/S): Press the rotary dial to enter V/S mode.
Radios & Communications
Button Controls: Autopilot 1 (AP1), Autopilot 2 (AP2), CWS/CMD. Rotary Dials & LCD Screen: Real-time frequency values for COM1/COM2 (Active and Standby). Rotate rotary dials 1 and 2 to change the standby frequency for COM1 and dials 3 & 4 for COM2. Tap the screen or press a standby rotary dial to swap between Standby and Active.
XPDNR/TCAS
Button Controls: Above/Below (ABV/BLW) (Long press for N), TCAS Range, ALT TCAS System (Long press to turn off), TCAS Test, IDENT, XPNDR Mode, & XPNDR SYS. Rotary Dials: Rotate the rotary dials to increase or decrease each of the transponder digits.
Navigation
Button Controls: ADF1 Transfer (ADF 1 TFR), ADF 1 Tone, ADF/ANT Mode. Rotary Dials & LCD Screen: Rotate rotary dials 1 and 2 to change the active ADF 1 frequency and rotary dials 3 & 4 to change the standby frequency. Press any rotary dial to change between active and standby.