There are two types of GPS antennas available for the GPS referenced products supplied
by Masterclock®. The "basic" package is designed for installations
where a short antenna cable (16'/5m) can be used.
For installations where a longer antenna cable is required the "standard" package
allows cable lengths up to 500'/150m.
Operationally the antennas are equivalent. Both antennas are water/moisture resistant,
with 26 and 32 db amplification respectively and are suitable for indoor
or outdoor mounting. The difference between the two is the physical
packaging, gain, mounting and the different lengths of antenna cable
that can be used.
See Antenna Installation (PDF) for discussion and questions concerning antenna mounting and location.
Standard Antenna Kit
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Antenna side view  |
Antenna Mounting Kit | 50'/15m coaxial cable |
** EACH OF THESE COMPONENTS CAN BE PURCHASED SEPARATELY **
Antenna Kit Specifications
Antenna |
Coaxial Cable |
Mounting Kit |
Note that the coaxial cable is very low loss - regular RG-58 cable will not work
Shown below is the antenna and coaxial cable supplied with the basic GPS-referenced
Masterclock® equipment packages. The GPS-based product include the antenna
with a built in magnetic mount, 16'/5m coaxial cable with a SMA connector
installed and any necessary adapters.
This antenna can be mounted
either in or outdoor where it is exposed to the sky. If indoor it must
be mounted in or at the edge of a window. The optional antenna mounting
bracket can be used as a base for mounting the antenna on or near a
window glass or frame. Cable ties and double sided tape is provided
with the bracket for mounting on a glass window pane. If a longer coaxial
cable is required see Standard Antenna Kit below.
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| Basic Magnetic Antenna |
Basic Mounting Bracket |
Basic Antenna Specifications
Additional Coaxial Cable - for use with Standard Antenna
Note that these coaxial cables are supplied instead of the normal 50'/15 meter cable in the "Standard Package".
Coaxial Cable (PKG-1 )
Cable type: Belden 8219
Cable diameter: .2" / 5 mm
Connectors: SMA - Male
Length: 75' / 23 m
Weight: 2.4 lbs / .9kg
Coaxial Cable (PKG-2 thru PKG-10)
Cable type: Belden 9913
Cable diameter: .405" / 1.03 cm
Connectors: SMA - Female (includes SMA male adapter cables, see line below)
Adapter Cables: Qty = 2, 18" , Belden 8219, with SMA male connectors on both ends.
Length: see options below
Weight: varies with package
Note that the coaxial cable is very low loss - regular RG-58 cable will not work.
PKG 1 75'/23m - ¼" .6cm coax - SMA-M connectors
PKG 2 100'/30m - .405" 1.03cm coax - SMA-M connectors
PKG 3 150'/45m - .405" 1.03cm coax - SMA-M connectors
PKG 4 200'/61m - .405" 1.03cm coax - SMA-M connectors
PKG 5 250'/76m - .405" 1.03cm coax - SMA-M connectors
PKG 6 300'/91m - .405" 1.30cm coax - SMA-M connectors
PKG 7 350'/106m - .405" 1.03cm coax - SMA-M connectors
PKG 8 400'/122m - .405" 1.03cm coax - SMA-M connectors
PKG 9 450'/137m - .405" 1.03cm coax - SMA-M connectors
PKG 10 500'/152m - .405" 1.03cm coax - SMA-M connectors
Per Foot / m: 50'/15m to 500'/150m, .405"/ 1.03 cm diameter coaxial cable
- available on a per ft / m basis. Check with factory for details and pricing.
Antenna Pigtail (see Note 2): 18" long - .25"/.6 cm diameter coaxial cable with SMA to SMA installed.
IN-LINE SURGE ARRESTORS
- see SA90-SMA
IN-LINE AMPLIFIERS AND SPLITTERS
are available on special order - check with factory for details and pricing.
Note 1- The antenna bracket is supplied with a dual sided adhesive pad for mounting
on inside surfaces, including glass. The bracket has holes for mounting
the antenna and attaching it to a wall or surface with screws (not included).
Hole spacing allows the bracket to be fastened to a flat surface or
clamped to a pipe using two nylon cable ties.
Note 2 - All Masterclock® GPS receiving devices use either a TNC or SMA connector
(jack) for connecting to an external antenna. When 1/2" cable is
used and is routed to the receiving device, because of the weight and
size of the cable, there could be undesirable mechanical tension or
force applied to the receiver connector. This would be particularly
true in restricted areas where an adequate bending radius is not possible
for the cable. In such cases it is recommended that a "pigtail"
section of coaxial cable be used to connect from the larger cable to
the receiving connector. These pigtail sections are fabricated using
Beldin 8219 cable and are shipped with appropriate connectors installed.
