This is the Futaba R168DP 8-Channel 72MHz (channel 11-60)
PCM 1024 Dual Conversion Receiver without Crystal.

FEATURES: Narrow-band spacing and Dual Conversion signal filtering combine to
provide exceptionally clear, interference-free reception and
amazingly smooth, accurate control

INCLUDES: One Futaba R168DP 8-Channel 72MHz PCM 1024 Receiver

REQUIRES: FUTL57** 72MHz Dual Conversion Receiver Crystal Low Band (11-35)_OR
FUTL58** 72MHz Dual Conversion Receiver Crystal High Band (36-60)

SPECS:    Narrow Band: 20kHz
Power Requirements: 4.8 to 6.0V (shared with servos)
Dimensions: 1.1 x 2.2 x 0.79" (29.2 x 55.8 x 20.0mm)
Weight: 0.85oz (24.2g)

COMMENTS: 1024 Resolution is NOT Compatible with Older PCM 512 Systems.

Special Notice about Frequency Changes-
*72MHz -- OK to change within the half of the band w/out retune
-- Must have service change from Low to High or High to Low.
-- **MUST** have service change from 72 to 75, 50 or 27MHz.
(Low band channels 11 to 35; High band channels 36 to 60.)
Customer should never change bands or band halves.
*50MHz, 72MHz, 27MHz and 75MHz Frequency Bands Cannot under any
circumstances be interchanged with each other. 72/75:receiver Must
be sent in for retuning to the appropriate band. 50/27: can't do.
*50MHz, 27MHz and 75MHz receiver crystals Can be changed anywhere
within the respective bands. There are no High or Low bands such
as the 72MHz band has.
*Transmitter Crystals Cannot be changed to another channel except
by a licensed service center. It is against FCC regulations, and
illegal for the user to change a frequency determining component
of a transmitter. If the radio is not retuned, it can be a hazard
spectators, modelers or property, and void AMA insurance coverage.
*Check with the local R/C club for the frequencies used in your area.