GPS Satellite Controlled Nixie Tube Clock (GPSII)
200mm L x 80mm H; GPSII was designed to compliment a desk in
The six 15mm digit Nixie Tubes are easily visible from a distance too.
GPSII is controlled by an integrated GPS satellite receiver
decoding transmissions from 28 US government defense satellites
The NAVigation Satellite Timing and Ranging
(NAVSTAR) system was
developed to meet the military needs of the United States Department of
The extraordinary ranging accuracy of GPS is the result of an
cesium clock reference transmitted by the ground based segments of
GPSII takes advantage of the NAVSTAR precision timekeeping system to
deliver a clock with "beyond question"
There are no other satellite
controlled clocks offering a comparable level of performance, and
features at a hobby kit price. GPSII uses a Direct
Nixie Tube display.
No multiplexing was used. Although more complex; Direct Drive
offers the distinct advantages of a brighter digit display, and
(10+ yr) tube life.
This clock was developed as a partnering project with John
Miktuk. An engineering team approach will always
a superior product to the customer.
GPSII will remain accurate to within a fraction of a second of
Satellite transmission. Far superior to local
and AC line referenced clocks.
Local Time, Date, Latitude / Longitude coordinates,
and the temperature can be configured to scroll across the display at
of: 1, 15, 30, 60 minutes.
Time can be displayed in 12 or 24 hour format. For 12 hour
a PM indicator is located at the lower left of the
Date can be displayed in either
mm,dd,yy OR dd,mm,yy format. The temperature
can be displayed in degrees F or degrees C with quarter degree
A pleasing soft chime tone
can be enabled to strike at selected intervals, and a choice of chime
styles are provided. The scrolling speed can be varied from slow
to -fast in a range of ten
individual steps. And, each of the features can be separately
disabled from the periodic scrolling cycle. The colon
separating the paired digits can
vary their configuration to upper, lower, or independent. This
whether the Time, Date, Coordinates or Temperature are currently
GPSII receives the satellite transmissions using a compact
1.5Ghz antenna. Some locations may provide adequate satellite reception
inside of a
structure, whereas others will require an externally mounted
The antenna is weatherproof, and includes a 10' coaxial lead in for
GPSII incorporates a unique method of operation in areas with
reception due to limited antenna mounting considerations; a secondary
In the event of satellite signal loss after successful startup; GPSII
will continue operation using an internal 1pps signal pulse supplied
the GPS receiver.
The lower right colon lamp will extinguish to indicate the clock is
operating from the local reference, then relight when the satellite
has been restored.
If power is lost, a lithium battery will maintain GPS receiver
and quickly resume operation when power is restored. No
cold start TTFF
(Time To First Fix) delay is incurred when GPSII is re
The initial startup acquire after installation may take 10-30 minutes,
The symmetrical component layout attracts your eyes to the
inside. Two PCB's arranged in an "L" contain all the electronics for
The vertical PCB supports the MCU, regulated supply , and the GPS
receiver module. The horizontal PCB supports a high voltage power
supply, display control and the Nixie Tubes.
GPSII operates from a compact 12vdc wall power adapter, accepting
from 47-63 Hz.
GPSII is secured in a handsome clear acrylic enclosure. The
The setup menu and controls are accessed via magnetic reed
at the top of the clock using an included rod magnet.
GPSII can be programmed to turn off the display during the
hours, and automatically turn on again in the morning.
to download the GPSII Operation manual in .PDF format.
Price assembled, with warranty: $299.00
Price as a complete kit of all parts:
USD + shipping
Kit information? click
The assembled GPSII Clock is guaranteed for
period of one year against defects in materials and workmanship.
Shipping the assembled clock in the USA and it's territories
via USPS Priority mail shipping for $20.00.
International shipping is offered using
Express Mail insured for $45.00
Payment can be made by Cashiers Check, Money Order, or Personal Check.
I accept Visa and Mastercard too. Don't hesitate!, order yours
Any questions?, please email.
or call. Thank you.
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