Spectra Precision ProMark 800 Reference Manual User Manual
Page 2

Copyright Notice
Copyright 2011-2013 Trimble Navigation Limited. 
All rights reserved.
P/N 631668 B, January 2013
Trademarks
All product and brand names mentioned in this pub-
lication are trademarks of their respective holders.
FCC Notice
ProMark 800 Receiver complies with the limits for a 
Class B digital device, pursuant to the Part 15 of the 
FCC rules when it is used in Portable Mode. See Note 
below related to Class B device.
Class B digital devices NOTE: This equipment has 
been tested and found to comply with the limits for 
a Class B digital device, pursuant to Part 15 of the 
FCC Rules. These limits are designed to provide rea-
sonable protection against harmful interference in a 
residential installation. This equipment generates, 
uses, and can radiate radio frequency energy and, if 
not installed and used in accordance with the in-
structions, may cause harmful interference to radio 
communications. However, there is no guarantee that 
interference will not occur in a particular installation. 
If this equipment does cause harmful interference to 
radio or television reception, which can be deter-
mined by turning the equipment off and on, the user 
is encouraged to try and correct the interference by 
one or more of the following measures:
–
Reorient or locate the receiving antenna.
–
Increase the separation between the equipment 
and receiver.
–
Connect the equipment into an outlet on a cir-
cuit different from that to which the receiver is 
connected.
–
Consult the dealer or an experienced radio/TV 
technician for help.
When ProMark 800 is used with an external power 
supply or connected to an external device using the 
USB port, it complies with the limits for a Class A 
digital device, pursuant to the Part 15 of the FCC 
rules. See Note below related to Class A device.
Class A digital devices NOTE: This equipment has 
been tested and found to comply with the limits for 
a Class A digital device, pursuant to Part 15 of the 
FCC Rules. These limits are designed to provide rea-
sonable protection against harmful interference 
when the equipment is operated in a commercial en-
vironment. This equipment generates, uses, and can 
radiate radio frequency energy and, if not installed 
and used in accordance with the instruction manual, 
may cause harmful interference to radio communica-
tions. Operation of this equipment in a residential 
area is likely to cause harmful interference in which 
case the user will be required to correct the interfer-
ence at his own expense.
Remark: Any changes or modifications not expressly 
approved by Ashtech could void the right for user to 
operate the equipment.
RF Safety Exposure To Radio Frequency Energy 
(SAR)
Radio transmitting devices radiate Radio Frequency 
(RF) energy during its operation. RF energy can be 
absorbed into the human body and potentially can 
cause adverse health effects if excessive levels are 
absorbed. The unit of measurement for human expo-
sure to RF energy is "Specific Absorption Rate" 
(SAR).
The Federal Communications Commission (FCC), In-
dustrie Canada (IC), and other agencies around the 
world have established limits that incorporate a sub-
stantial safety margin designed to assure the safety 
of all persons using this equipment. In order to certi-
fy this unit for sale in the US, Canada and Europe 
this unit has been tested for RF exposure compliance 
at a qualified test laboratory and found to comply 
with the regulations regarding exposure to RF Energy. 
SAR was measured with the unit (GSM Module) 
transmitting at its maximum certified RF power. Of-
ten, however, during normal operation the unit (GSM 
Module) will transmit much less than maximum pow-
er. Transmit power is controlled automatically and, in 
general is reduced as you get closer to a cellular base 
station. This reduction in transmit power will result 
in a lower RF energy exposure and resulting SAR val-
ue.
FCC and CE UHF Safety Statement
The different versions of the UHF Transmitters are 
FCC and CE compliant.
In order to comply with FCC and CE RF exposure 
safety guidelines as body-worn, normal use of unit, 
the following must be followed:
A distance of AT LEAST 10 feet (3 m) of separation 
between the users body and the unit (UHF Transmit-
ter). This distance has been defined taken into ac-
count the FCC and CE Requirements and the worst 
output power configuration.
Do NOT use the device in a manner such that it is in 
direct contact with the body (e.g. on the lap). Such 
use will likely exceed FCC RF safety exposure limits. 
See www.fcc.gov/oet/rfsafety/ for more information 
on RF exposure safety.
To comply with CE and FCC electrical safety regula-
tions, ProMark 800 should only be powered from a 
6 to 28 V DC external source, with 20 W power limi-
tation, or the recommended battery (P/N 111374). 
The battery should be charged only with the supplied 
battery charger (P/N 802064).
NOTICE:
The FCC (Federal Communications Commission) re-
quests that equipment manufacturers take every step 
to increase user awareness about the responsibilities 
inherent in being an FCC licensee on shared chan-
nels.
Users are indeed requested to obtain a FCC license 
before operating their RTK equipment on the US ter-
ritory. Once a license has been granted, users should 
observe all the FCC regulations (see http://wire-
less.fcc.gov/). Licensees are encouraged to avoid any 
use of voice frequencies in the 450-470 MHz band.
