Nixie Tube Clock ‘LTC’
Issue 1 (1 November 2011)
www.pvelectronics.co.uk
- 25 -
8.2 DCF / WWVB / MSF Synchronisation.
An optional receiver and 3 metre cable is available. The Radio Frequency
Time (RFT) receiver module plugs into the mini-DIN socket on the rear of
the PCB.
8.3 Connecting the DCF / WWVB / MSF receiver.
The clock is designed to be used with Symtrik RFT time receiver module
type SYM-RFT-xx
These modules feature an on-board indicator LED to indicate the regular
pulses from the time transmitter. This is very useful in setting up the
module, to determine if a good signal has been found. The module's
output coded time information in inverted format and this is the format
the clock can decode.
If you are using our module and 3 metre extension cable, proceed to step
8.4. If you are wiring in the module close to the main clock PCB or by
direct soldering to the clock PCB pads, refer to step 8.5.
Some Notes on WWVB / DCF / MSF Reception:
Many other electrical applicances such as TVs and Mobile phones
reception when in close proximity. Metal objects cause reception problems
too. It is suggested to start off with the antenna by a window, in the
approximate direction of the signal Do not point the antenna at the
direction of the signal, but have the antenna side-on to the signal
direction.
Once a good signal has been obtained, try different locations, and
progressively further from the window.
Place and design your case so the antenna is as far away from the PCB as
possible.