This is the Spektrum 9-Channel DSM2 Module and AR9000 Set for JR Radios.  If you do not know much about Spektrum radios or the technology behind them, read on!  This amazing system works great, and can now be used in your JR radio!

Compatilbe with the following JR Radios:
347
388
Unlimited 8
783
PCM10
PCM10S
PCM10SX
PCM10SXII
8103
9303
10X

Features:

• DSM2 Spread Spectrum Technology for Popular Module Based Radios
• Very Robust Radio Link
• No Crystals Needed
• No More Model Generated Interference (electronic ignitions, metal to metal contact, etc.)
• Short Antennas on Both Radio and Receivers
• No Need to Send Existing Radio in to Service to be Retuned
• Keep Favorite Radio with Familiar Software Program

Now thousands of JR users can experience the freedom that only Spektrum’s revolutionary 2.4GHz technology can provide with Spektrum’s new Aircraft Module Systems. Each module system includes everything you need to equip your JR module-based system with the interference free, glitch free precision of DSM2—Spektrum’s advanced spread spectrum protocol that can be used with any size and type of aircraft.
 
Just think, now you can fly anytime you want without giving a second thought to frequency conflicts, RF interference or glitches AND use the same radio you’re flying with now.

AR9000 Receiver Specifications:
Type: SPMAR9000
# of Channels: 9
Modulation: DSM2
Band: 2.400-2.4835GHz
Dimensions (WxLxH): 1.35x2.065x0.55

Features:

• 9 Channels
• External and Internal Receiver
• DuaLink
• SmartSafe fail-safe system

The AR9000 combines an internal and remote receiver, offering superior path diversity. The radio system simultaneously transmits on two frequencies, creating dual RF paths. This dual path redundancy, plus the fact that each of the two receivers is located in a slightly different location exposes each to a different RF environment and creates a superior path diversity RF link in all conditions.

Spektrum’s Flight Log (not included) is compatible with Spektrum AR9000 receivers. The Flight Log displays overall RF link performance as well as the individual internal and external receivers link data. Additionally it displays receiver voltage.

The AR9000 requires that at least one remote receiver be used (one is included), but can use a second remote receiver if desired.