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UPDATE (7/24/2010) We are currently out of stock of our LML's. We have been working hard to produce more and our stock has sold out much quicker than we expected. Please stop back soon or send us an email at info@skykingrcproducts.com to be notified when they are back in stock. Thank you! -SkyKing

IMPORTANT: SkyKing Lost Model Alarms work with a broad range of Spektrum products. We have tested our locators with the AR500,AR6100,AR7000 and AR9000. We also believe they will work with all the other Spektrum receivers but have not performed tests with each and every one of their products.

When used with 72 Mghz TX/RX combinations, our alarm is activated by turning the transmitter off. In order to use our locator with Spektrum devices you will use the gear channel toggle switch to activate the alarm signal. With the gear switch in the up position set the servo travel to 0. Next flip the toggle switch down and set the travel to the maximum throw. You will now be able to activate your alarm by simply flipping the switch.

If you are using a JR9300 2.4 transmitter you can assign the locator to one of the other switches or the sliders on the side of your TX case. You can plug the locator into the Aux instead of the gear channel if you prefer.

Here's how Richard Hanners, one of our customers, sets up his JR9303 2.4Mghz system with our locators:

Richard said; "I just got an AR9000 and wanted to let you know that the LML will work with this model of Spektrum receiver if you used the Standard Preset Failsafe method rather than the SmartSafe failsafe method. I first bound the receiver, then set up one channel to start making the failsafe sound, then rebound again but used the technique for their Preset Failsafe method. Worked just fine. Turn off Tx and alarm sounded. Now if they would only include the Preset Failsafe in ALL the full range receivers, that would be great."

As you can see he turns the locator on and off by turning his TX off but you can also use our set up method if you prefer. Either one will work.

Another customer, Steve Jantscher, sent me this brief description of how he sets up his TX/RX with our locator:

Various methods of using the Sky King RC Lost Model Locator with Spektrum brand 2.4 Ghz receivers and a JR x9303 transmitter.

I have only tried receivers I personally have. In all these examples I went with the simplest method, and did these combinations of binding techniques in "Acro" mode, as my favorite means was in using the Landing Gear servo position in the receiver and corresponding gear servo travel throw travel settings in the receiver. In my experiments I found that some other servo positions would also yield adequate results, but did not explore this avenue of research.

I would appreciate any feedback, especially if you are unable to replicate my results, or find a shorter or easier way to successfully utilize the Sky King RC Lost Model Locator on these and other Spektrum / JR 2.4Ghz compatible receivers.

Before each of these binding procedures, select the "model name" (in my case "model 1-30") you wish to bind the receiver to. Also, go into the List menu for that model and select "Travel Throws". In Travel adjust menu, select the gear travel and set the up to "0" and the down to "-128".

Spektrum AR500 This rather new full range receiver was the easiest to set up and with the LML was operational just as advertised.

1. Tx off.
2. Put the bind plug into the battery/bind plug position of the receiver.
3. Put the LML into the (landing) gear servo slot.
4. Place one servo known to be in good working order in the aileron servo slot.
5. Power up the receiver (either with a powered switch or by plugging the receiver battery lead into any other "hot" servo opening). The bind light should start blinking, the LML will announce itself with a number of beeps indicating how many cells your battery pack has, and then start the lost model wail.
6. Remove the bind plug. The bind light will remain blinking. At this point the LML has probably started to scream, and is getting on your nerves. Hang in there!
7. With the landing gear switch in the "down" position, your other control input switches in their neutral position (presuming that is where you want them in a "fail-safe" mode) and depressing and holding the binding button on the back of the Tx, turn on the power to your transmitter and begin the binding process. Continue to hold down the bind button until the receiver light stops blinking and shows steady (usually 3 to 5 seconds).
8. Release the bind button. Test that the bind is successful by moving the aileron control stick and observing the resulting servo movement. The LML should stop it's lost model noise making.
9. Test that the LML will wail on command by switching off power to the Tx. The LML should start to wail. Reapply power to the TX, and the wailing will stop.

Spektrum AR6100e will bind with the above procedure, with the additional "bonus" of being able to remotely activate the LML lost model wail by selecting "down" on the gear switch, as well as switching off the Tx.

FUTABA 2.4 products: OUR LOCATORS WORK WITH FUTABA 2.4 GHZ

Several customers have now confirmed that they are able to use our locators with their Futaba 2.4 equipment. This post from customer, Vito Maglio explains how he sets up his equipment so that he can use our locators.

"Ok, this is on a Futaba 12fg transmitter 2.4g, both 7 & 14 channel receivers.

1. In the (Function) screen make any available channel
   -GEAR- & assign a switch for that channel.
2. In the (Servo Reverse) screen make that channel -REV-
3. In the (End point) screen {first column} LIMIT 0 percent, TRAV 30 percent. {second column} TRAV 140 percent, LIMIT 155 percent.

That's it! Flip that switch & the alarm will sound. Hope that makes sense, & hope that helps."

ASSAN 2.4 products: We hope to complete testing on the Assan system in the near future and will post our results.

BERG receivers: Our locators work with all Berg receivers as long as you do not activate the fail safe mode.

Our locator will also provide lost model function with LiPoly powered models using a BEC circuit.

The low battery warning feature should not be relied on if you are using more than 3 Lipoly cells since the low voltage cut off point is not the same for all brands of speed controls.