4
t
848 Airport Road, Walla Walla, Washington 99362 U.S.A.
Tel: +1 509.525.7660 / Fax: +1 509.525.7907
twigwirelesscontrols.com
1.2.3 USE Of REPEATERS.
If the distance to the valves exceeds the signal range then use a repeater to
make the communication reliable. A communication chain is no better than the weakest link. The potential
for a communication break increases as more repeaters are in a chain. A network that utilizes direct TD200
to TWIG communication will be more robust than one with a long repeater chain. Remember the allowable
number of repeaters for one TD200 is nine.
1.3 ThE TwIG lIST Of GOOD wIRElESS PRACTICES:
Following some rules of good practices will provide for successful radio communication. Operating outside
of good practices may cause your communication to malfunction and stop working.
•
Keep within the recommended range. Locate antennas as high as practical.
•
Stay within the recommended environmental limits. Plan for crop growth so it does not block the
signal and so that you can have good communication for the life of the crop.
•
Never operate with any other battery or power source than specified.
•
It is not allowed to co-locate (be next to each other or closer than within 12 inches) with other
radios and to transmit simultaneously.
•
Never operate with any other antenna than what is supplied for approved use.
•
TWIG wireless control systems are pre-approved by the FCC and do not require licensing; however,
installations near an airport are subject to stricter rules. Check with the local FCC for more details.
•
Keep in mind that the TWIG should be accessible because they contain batteries that will need to
be replaced after some period of time.
TWIG
note
TwIGS ThAT ARE TOO fAR APART wIll OvERwORK
ThE bATTERIES. blOCKED OR wEAK RADIO SIGnAlS
CAn AlSO OvERwORK bATTERIES.
TD200
TWIG
Repeater (if needed)
