The Rhino™ includes an internal 8-channel GPS (Global Positioning System) receiver that synchronizes the 1 PPS, 1/2 PPS and Adj PPS signals to GPS time. The battery allows the Rhino to be internally powered, for short periods of time, in an area with GPS coverage to synchronize and then moved without loss of synchronization. All functions are controllable via RS-232 from a PC.

For Laboratory Use:

The Rhino™ provides precision reference frequencies including many used by popular CDMA test equipment. An internal battery protects against loss of lock during AC power interruptions, or the unit may be unplugged and moved to another location without losing synchronization.

For Field Use:

The Rhino™ is a precision frequency source for field use. It is also ideal in situations with limited or no GPS coverage. It directly connects to modified BVS equipment (currently the Super Eagle and Eagle), The internal battery conditions vehicle power and acts as an Uninterruptable Power Supply (UPS) for the Rhino and the Super Eagle.

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The Rhino outputs the following buffered (50) reference signals:

• 10 MHz (8 individually buffered outputs)
• 19.6608 MHz (IS-95 clock multiple)
• 1 PPS (1 Pulse Per Second)
• 1/2PPS (Odd/Even Second)
• Adj PPS (Phase adjustable to CDMA base station offsets 0-511)

CLOCK REFERENCE SOURCE

Internal rubidium atomic clock stability

1E - 10/day

OUTPUTS

10 MHz (8 BNC, Female)	50 Individually Buffered Sine Wave 1 VPP nominal
1PPS (BNC, Female)	1 Pulse Per Second 50 buffered TTL Level
1/2 PPS (BNC, Female)	Odd/Even Second (1 pulse, high-level, per even second) 50 buffered TTL Level

CDMA SPECIFIC OUTPUTS

19.6608 MHz (BNC, Female)	16 X 1.2288 MHz 50 buffered TTL Level
Adj PPS (BNC, Female)	Phase Adjustable PPS. Can be set to align with CDMA Base Station Offsets Basestation 0-511 or PN Offset 0-32, 767 50 buffered TTL Level

POWER

DC	12 - 14 VDC @ 5 Amps
AC	110 VAC 50-60Hz @ 1 Amp
Internal Battery	Powers unit for more than 30 minutes

INDICATOR LEDs

Power	Green
GPS Lock	Green
Clocks Locked	Green
Rubidiurn Lock	Green
Battery Low	Amber
Error	Red

MECHANICAL

Dimensions	12" x 8" x 5"
Weight	10 lbs.

SERIAL PORT

RS-232 DB-9, Male

The Rhino Controller application software is the Windows 95/98 interface that enables a user of the Rhino Frequency Source. The Rhino Controller provides a programmable chip offset, which allows synchronization of an output adjustable pulse-per-second (PPS) to 1PPS with a desired offset from 1 to 32767 CDMA chips. The Rhino Controller application mimics the display panel for the Rhino. The status is constantly updated approximately every other second as well as the GPS receiver status. The information is updated on the PC display as it comes in through the RS-232 port. The chip offset may be set from 0-32767 in this application.

In addition to the status being updated in the display, the GPS Lock, Clocks Locked and Rubidium Lock simulated LED's will light up for the appropriate conditions. There are two status bars located on the bottom of the screen. The "RHINO STATUS" bar displays the current chip offset, the last offset drift, the firmware version, and the real-time clock.

How do I read GPS information?
Simply click on the 'GPS DATA' button. All information reported by the internal GPS receiver will be displayed.

How do I set the chip offset?
Click on the 'SET OFFSET' button. Then enter a valid offset number. Choosing 'OK' will report back the new offset within a few seconds.