This pack is supplied with a specially modified DigiSender transmitter & receiver fitted with an external SMA antenna connection. Using the supplied 14dB Yagi antenna connected to the DigiSender receiver, incredible ranges can be achieved. The pack also contains 12.5 metres of high frequency/low loss cable pre-fitted with the required SMA and N-Type connectors. This means no cable construction need be done and the system can be constructed & installed in under an hour. The Yagi antenna is suitable for mounting externally and can withstand the harshest environmental conditions. Please note that quoted ranges may vary according to local site conditions and you should always conduct a site survey prior to installation.