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Appendix 4
PI 4100 Accessories
Potomac Instruments recommends the following accessories for use with the PI 4100. Some are
available from Potomac Instruments and some are available direct frAom their manufacturer. Contact
Potomac for further information about any of them.
●Hard Case for transport and shipping, the Pelican 1610: This is a rugged hard plastic
shipping/carrying case that will protect the PI 4100 from damage in transport. It isavailable from its
manufacturer or dealers. Its outside dimensions are 25x20x12 inches, 63x50x30 cm. Refer to the web
address pelicansuperstore.com/products/pelican-1610-case.html for details and for direct purchase
from the manufacturer. The 1610 case requires a plastic foam insert with cutouts to fit the 4100. The
foam insert in which the 4100 is shipped from the factory fits the Pelican 1610 case exactly and can be
used without modification. This foam insert can also be purchased separately, see below.
●Foam Insert, Part No. LM10529: The Pelican 1610 case requires a plastic foam insert having
cutouts to fit the PI 4100. This insert is available from Potomac Instruments.
●Battery Pack, Part No. EPG-1068: A spare/replacement rechargeable NiMH battery pack
identical to the one supplied initially in the PI 4100. It is available from Potomac Instruments.
●Charging Cable, Part No. LM10541: A cable which plugs into a vehicle's cigarette lighter
socket and the PI 4100's charging jack, identical to the one supplied with the unit. It is available from
Potomac Instruments.
●Unipod, Part No. UNIPOD: A telescoping "leg" which screws into the PI 4100's tripod mount
to support the unit's weight It is available from Potomac Instruments.
●Tripod: A tripod rated for at least 15 lb or 7 kg, having a 1/4"-20 mounting screw, is
recommended. Potomac Instruments does not offer a specific model but can suggest one.
●Headphones: Any mono or stereo headphone set having practically any impedance and a 3.5
mm or 1/8 in. plug can be used. Potomac Instruments does not offer a specific model but can suggest
one.
●Soft carrying case: When carrying the PI 4100 on foot, a soft case with shoulder strap can
provide hands-free carrying and can protect the unit from dust and rain. A suggested model is the
Timbuk2 Messenger, size large, which is available in several variations and custom colors on the web at
timbuk2.com.
●Remote Antenna Kit: The PI 4100 can be operated with its loop antenna separated from the
body of the unit by a cable having special adapters at its ends to connect to the antenna and the body.
Self-calibration (4.2.3, p.20) operates in this mode and measurement accuracy is essentially the same as
for normal operation for frequencies below 1800 kHz. A standard cable length of 25 ft is available, and
other lengths are possible. The cable and adapters are available from Potomac Instruments as a kit;
contact Potomac for further information.
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