Panther 4-Channel Receiver

Supports simultaneous CDMA and analog receiver modules for verification of neighbor lists, PN assignments, hand-off thresholds, pilot pollution and analysis of coverage areas
Modular construction allows any combination of receiver pairs, i.e. Cellular, PCS, SMR, LMR, IVDS in any combination of forward and/or reverse bands
Precise navigation using an internal 8-channel differential capable GPS
Super bright display using 128 x 240 pixel graphic supertwist LCD (VF backlit)
Direct frequency entry via keypad or rotary knob
AC or 12 volt DC operation
512 measurements per second per receiver
Total system weight under 15 pounds, encased in a durable water resistant case
Internal FM/FSK speaker and headset audio output
Measurements exceed sampling requirement for 40l at vehicle speeds>80MPH
40 Lambda conversion supported by hardware
High speed interface to PC via 38,400 bps serial port

RECEIVER SENSITIVITY:
Sensitivity	-118 to -30 dB + 1 dB (@ 10 KHz IF Bandwidth)
Adj. Chan. Rejection	> 50 dB @ 30 KHz
RSSI MEASUREMENTS	Measurement / Second
Fast Scan (each receiver) 10 bit precision A/D convertor	512
Scan Mode	up to 80 Freq/Rec
RECEIVER PERFORMANCE:
Display	240 X 128 pixel Graphic Backlighted VF LCD (Super Twist)
Tuning Range	20-40 MHz synthesized tuning covering any band
Sensitivity	-118 to -30 dB + 1 dB (@ 10 KHz IF Bandwidth)
Adj. Chan. Rejection	> 50 dB @ 30 KHz
Synthesizer Settling Time	between 10msec (<8 channels) and 40 msec (>500 channels) (depending upon how many channel steps are scanned)
GENERAL SPECIFICATIONS:
Dual Conversion	83 MHz first IF, 455 KHz second IF
IF Bandwidth	4 KHz, 10 KHz, 25 KHz or 30 KHz available (@ 5dB)
Stability	+2.5 PPm from freezing to 120 degrees F
Phase Noise	> 80 DBC @ 1 KHz
Antenna	TNC 50 ohms
Controls	20 button keypad
Warm -Up Time	< 3 minutes
Power	External car cigarette lighter 12-16 VDC @ 200 mA External DC transformer 16V @ 500 mA, 120 or 240 VAC auto switching
FINCH MODULE PERFORMANCE:
IF Bandwidth	1.25 MHz
Measurement Accuracy	Ec/Io + 1 dB@ 25 deg C
Measurement Accuracy	+ 2 dB@ 0-50 deg C
Receiver Noise Figure	< 7.5 dB
Antenna Input Sensitivity	> -90 dBm
Maximum Safe Input	+ 10 dBm
FINCH MODULE CDMA PERFORMANCE:
PN Generator Sequences	IS-95 I and Q Pilot
Minimum Ec/Io	-20 dB
Correlation Length	1024 chpc (for both I and Q)
Minimum Pilot Power Detectable	-20 dB
Base Stations Scan Rate	< 1 sec.
Display Update Rate	< 1 sec.
Base Station Identification	Direct IS-95 BS ID demodulation
Timing Accuracy	Absolute (derived from the signal)
Timing Jitter	+ 200 ns
MECHANICAL SPECIFICATIONS:
Serial Port	RS-232, 9600 baud, 8 bit. no parity, 1 stop bit
Weight	17 lbs.
Dimensions	7" H x 13" W x 16" L
Approvals	CE, UL, CSA external supply
INCLUDED ACCESSORIES:
Antenna	Four SMA (F) 50 ohms
Car Lighter Adapter	12-16 VDC @ 600 mA
PC Software	3-1/2" Diskette MS DOS - source code included
GPS	Internal 8 channel differential GPS with active antenna
ChameleonCW	file conversion software for Windows 95/98
OPTIONS:
IF Bandwidth	4 KHz, 10 KHz, 25 KHz, 30 KHz
BER Demodulation	Bit byte packet and burst error counts (certain models only)
GPS	Dead Reckoning available

Cellular: 824-848, 868-896 MHz tunable in 30 kHz steps (CDMA and Analog)

PCS: 1850-1910 and 1930-1995 MHz (A, B and C Blocks) (CDMA and Analog)

Paging: 145-165, 450-465

IVDS: 218-219 MHz

LMR: 805-825, 850-870 MHz

ISM: 900-930 MHz

AMPS: 824-848, and 848-869 MHz

ETACS: 872-905, and 915-950 MHz tunable in 25 kHz steps

When controlling the Panther with the Panther DataLogger™ via PC, the user may perform an incremental scan which steps one-by-one through the channels of the entire band.

-------------------------------PANTHER 1 SECOND REPORT------------------------------- ITEM / DATE / GPS / MARKER / FREQ 1 / 512 MEASUREMENTS / FREQ 2 / 512 MEASUREMENTS / FREQ 3 / 512 MEASUREMENTS / FREQ 4 / 512 MEASUREMENTS Incremental Scan (using PC software): steps one-by-one through entire band Table Scan (using PC or Panther keypad): scans through a list of user-defined channels (80 channels per Rx)

40 Lambda Averaging in Chameleon CW In some instances it is desirable to reduce the effect of fading in the analysis of transmitted signal propagation. The 40 Lambda averaging technique is a known scheme for accomplishing this goal. Berkeley Varitronics Systems, Inc. has support for this type of averaging in ChameleonCW™, the universal data conversion tool, starting with version 1.53. This tool converts data that has been collected using Berkeley's CW line of receiver equipment. It has been concluded that the sampling rate needed to suppress the Rayleigh fading of a propagated signal is:
36-50 samples/ 40 wavelengths An explanation of this theory can be found in the book titled "Mobile Cellular Telecommunications Systems" by William C. Y. Lee. Therefore, assuming that the sampling rate of the receiving equipment is greater than the number of samples required by the 40 Lambda theory, the samples maybe reduced to the needed number of samples per second through averaging. Example: Signal frequency = 800MHz.
Drive-study speed = 100KM/H.
l = Wavelength of signal
v = Velocity of signal
f = frequency of signal Therefore, l=v/f. l=(300000000m/s)/(800000000/s). l = .375 meters

Now,we will take 40 samples per 40 wavelengths. Therefore, we need the time duration for 1 wavelength. T = time duration to drive 1 wavelength. V = Velocity of vehicle. V = (100km/h)(1000m/km)/(3600s/h) = 27.78 m/s T = (l) / V = (.375m) / (27.78m/s) T = .0135 seconds S = Sampling rate needed. S = 1 / .0135 s = 74.08 samples / second
Chameleon CW 40 Lambda Conversion The BVS Chameleon CW data conversion tool has an option for averaging based on the 40 Lambda theory. This option is available for data collected via the BVS Panther 4-channel receiver.
In the FAST mode of each piece of equipment, 512 samples per second are taken. The BVS Chameleon CW then reduces this data to the appropriate amount of samples required by the 40 Lambda criteria. The user only has to input the average drive speed of the vehicle.

Panther Finch Screen

Panther Finch CDMA Screen

Panther Screen

Panther Data Logger Screen

Does the Panther do CDMA measurements? Yes. Check out the Finch CDMA receiver module specifications above. Does the Panther really make 512 measurements per channel or is that combined? In fast scan mode, the Companion makes 512 measurements per second per channel. How do I get the data into my PC? Use the Panther Data Logger to upload that data through the serial port of your PC from your Panther in either binary or ASCII delimited format. Does the Panther average measurements before reporting the RSSI? Yes. Is it measuring the RSSI at the center of the modulation envelope? Yes.

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Panther 4-Channel Receiver System

With the Finch™ CDMA module, Panther becomes a powerful 4-channel receiver system able to measure and report both analog and digitally modulated signals simultaneously. Finch measures all 512 base stations and measures true CDMA (Ec/Io) correlated signal strength + 1.0 dB in less than one second.