Newsgroups: comp.robotics
Path: brunix!cat.cis.Brown.EDU!agate!howland.reston.ans.net!gatech!swrinde!elroy.jpl.nasa.gov!usc!nic-nac.CSU.net!charnel.ecst.csuchico.edu!olivea!decwrl!pa.dec.com!src.dec.com!crl.dec.com!nntpd.lkg.dec.com!nntpd2.cxo.dec.com!specxn.enet.dec.com!bonomo
From: bonomo@specxn.enet.dec.com ()
Subject: Motorola GPS engine purchase information
Message-ID: <1994May25.182627.13200@nntpd2.cxo.dec.com>
Lines: 352
Sender: usenet@nntpd2.cxo.dec.com (USENET News System)
Reply-To: bonomo@specxn.enet.dec.com ()
Organization: Digital Equipment Corporation
X-Newsreader: mxrn 6.18-10
Date: Wed, 25 May 1994 18:26:27 GMT



Greetings, one and all!

This message is ASCII text, formatted as <CR> at =<78 characters, tabs at +8.

Have finally received "everything" which I will obtain from Motorola and
Trimble, and the order requests have dwindled to a minimum, I have attached
the specifications and pricing below.

In a nutshell, the Motorola unit is better in every way, excepting three
factors.  The Trimble unit:

1)	is about 1/8" smaller in width and height,
2)	is about .6 ounce lighter,
3)	consumes less power in standby, quoted as ~2uA nominal, versus the
	Motorola's stated maximum of 60uA.

Other than that, the Motorola VP Oncore engine is superior in all ways, 
including price.  The recommendation, from my perspective, is to choose the
Motorola unit, but your choice may vary.  The above factors, in which the
Trimble unit is superior, may be significant ones for you.

I have had requests from 375 individuals, from nine countries, for over 435
units.  All this is, of course, based on a "$150" purchase price, which is not
available.

Understanding this, it seems best if there is a "standard" configuration which
is ordered, as the pricing given is for quantities of 100 and greater.  If
100+ want the options, we'll order those, too.  Remember, all prices are for
100+ units per item.  In other words, if 25 units are wanted with the LNA
option, the pricing for that LNA option will be be somewhat higher than the
figure quoted below, and I'm not sure if Motorola can (or will) handle
one-sie, two-sies and get it right. 

******************************************************************************
The recommended "standard" configuration:


Item			Price / each (includes Colorado State sales tax)
------------------------------------------------------------------------
VP Oncore engine	$268
Active Antenna		$ 70
Cable to antenna	$ 22
			----
Total "standard"	$360

******************************************************************************


Options to be considered:
-------------------------
LNA			$ 16
battery			$ 11


Shipping within the continental U.S., via 2nd day service, will run $10.  This
includes a box, packing foam and shipping charges.  This figure is good for
up to ten units.

Those interested in this group purchase should remit monies to the name and
address below.  Please send non-cash such as personal checks, money orders or
the like, as it allows records to be kept much more easily.  If less than 100
orders are placed, the checks/money orders will be destroyed, rather than
incurring the cost of returning up to 100 of them.  Alternately, if you want
your check returned in the event of an insufficient number of units ordered,
add a dollar bill to cover the cost of an envelope, stamp and my or my wife's
writer's cramp which will inevitably result.  If the order threshold is
reached and an order is placed with Motorola, the $1 will be returned to you
with your order.  Please include a very complete address to which the order
may be sent.  Include your current Internet address and telephone number(s)
where you may be reached, as well.  I've experienced several Inet addresses
which have bounced, by the way, so if you didn't receive a response from me
directly, it was attempted.

Send orders to:

	Thomas A. Bonomo
	8147D Summerset Drive
	Colorado Springs, Co.  80920.6123


I can be reached, and have been by several individuals, at:

	Telephone:	(719)593.9883	Home	(evenings, weekends)
			(719)592.5105	Office	(weekdays)
	Internet:	tom.bonomo@cxo.mts.dec.com


This message will be posted to the newsgroups, as well.

Thanks for your patience as I've gathered information and responded to each of
your requests.

Regards,

Tommy

Specifications and pricing information follows.

/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\



/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\

Motorola VP ONCORE SPECIFICATION DATA SHEET
---------------------------------------------

Receiver Architecture
---------------------
	o	6 channel
	o	L1 1575.42 MHz
	o	C/A code (1.023 Mhz chip rate)
	o	Code plus carrier tracking (carrier aided tracking)

Tracking Capability
-------------------
	o	6 satellite vehicles simultaneously

Dynamics
--------
	o	Velocity:	1000 m/s when altitude less than 18 km
	o	Altitude:	18 km for velocities greater than 514 m/s
	o	Accelleration:	4 g

Antenna
-------
	o	accepts active and passive antennas

Acquisition Time
----------------
(TTFF = Time To First Fix)
	o	22 sec. typical TTFF (with current almanac, position, time and
		ephemeris)
	o	48 sec. typical TTFF (with current almanac, position and time)
	o	2.5 seconds typical re-acquire

Accuracy
--------
	o	Position:	less than 25 meters, SEP (without SA).
		DoD may invoke Selective Availability (SA), potentially
		degrading accuracy to 100 meters (2 dRMS)

DATUMs
------
	o	49 std. datums, 2 user defined, default WGS-84

Signal Level
------------
	o	TTL

Output Messages
---------------
	o	Latitude, longitude, height, velocity, heading, satellite
		tracking status (Motorola Binary Protocol)
	o	NMEA-0183 Version 2.00 (GGA, RMC, GLL, GSA)
	o	LORAN emulation mode
	o	Software selectable

Operating voltage
-----------------
	o	4.75 - 5.25 VDC, 50 mVp-p ripple

Operating current
-----------------
	o	230 mA typical @5V, 275 mA max at 5.25V

Standby voltage
---------------
	o	2.5 - 5.0 VDC

Standby current
---------------
	o	60 ua max

Dimensions
----------
	o	2.00" x 3.25" x .64"  (50.80mm x 82.55mm x 16.26mm)

Weight
------
	o	1.9 oz. (53.9g)

Connectors
----------
	o	Digital:	10 pin (2 x 5) header on .100" centers
	o	RF:		right angle OSX (sub-miniature snap-on)

Operating Temperature
---------------------
	o	-30 - +85 degrees C (without on-board battery)
	o	-20 - +60 degrees C (with on-board battery)

Storage Temperature
-------------------
	o	-30 - +85 degrees C (without on-board battery)
	o	-20 - +60 degrees C (with on-board battery)

Humidity
--------
	o	95% RH, non-condensing

Vibration
---------
	o	7.7 g, random (survivability)

MTBF
----
	o	>61,000 hours (estimated)

Optional features
-----------------
	o	Lithium battery
	o	Low Noise Amplifier
	o	Real Time Clock



Pricing (includes Colorado state sales tax)
----------------------------------------------

VP Oncore engine	$268
Active Antenna		$ 70
Cable to antenna	$ 22
Low Noise Amp		$ 16
Lithium Battery		$ 11

Development Software
	1st option	$270
	includes:
	Raw code phase,	
	disc data,
	smooth sat time,
	carrier phase

	2nd option	$215
	includes:
	above without
	carrier phase




/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\



/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\


Specifications for Trimble SVeeSix GPS engine
-----------------------------------------------

	Model:	SVeeSix-CM2


General
--------

	L1 Frequency, C/A code (SPS), 6 channel, continuous tracking receiver


Update Rate
-----------

	NMEA - 1Hz


Accuracy
--------

	Position:	25m without SA
	Velocity:	0.1m/s without SA
	Time:		1 us (nom)


DGPS Accuracy
-------------

	Position:	2m to 5m (2 sigma)
	Velocity:	0.1m/s
	Time:		1 us (nom)


Acquisition (typ)
-----------------

	Cold Start:	2 to 5 minutes
	Warm Start:	50 sec with time upload
	Hot start:	30 sec with time upload


Reaquisition
------------
		<2 sec


Dynamics
---------

	Velocity:	500 m/sec max
	Acceleration:	4g
	Jerk:		20m/sec^3


Environmental Specs.
--------------------

	Operating temp:	-10C to +60C
	Storage temp:	-55C to +100C
	Vibration:	0.008g^2/Hz  5Hz to 20Hz
			0.05g^2/Hz 20Hz to 100Hz
			-3dB/octave 100Hz to 900Hz

	Operating Humidity:	5% to 95% RH non-condensing @+60C
	Altitude:		-400m to +18000m


Physical Characteristics
------------------------

	Dimensions:	3.25" x 1.83" x 0.58"
	Weight:		1.3 oz. (36.4g)
	Connectors:	RF: SMB, I/O: 8 pin (2x4), 2mm header


Technical Specifications
------------------------

	Prime power:		+5Vdc (-3% to +5%)
	Power consumption:	280 ma, 1.40 watts
	Backup power:		+3 to +5 Vdc
	Backup consumption:	1 uA @3V and +25C (nom)
	Serial port/1PPS:	CMOS TTL
	Protocol options:	TSIP @9600 baud, 8-O-1
				NMEA 0183 v2.0 @4800 baud, 8-N-1
				TAIP @4800 baud, 8-N-1

	NMEA messages:		Standard:	GGA,VTG
				Optional:	GGA,GLL,VTG,ZDA,GSA,GSV,RMC



Pricing (includes Colorado state tax)
--------------------------------------

	SVeeSix CM2, DGPS capable 	$321
	Antenna	(includes cable)	$118


/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
