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The rebroadcast version of this setup has been tested using CTCSS on both receive and transmit for all radios. Voice and GPS data both passed through the
system at range without any apparent difficulty. The current operating frequencies are 147.350 MHz for the rebro link channel and Langdale’s team working
channel of 156.175 MHz. These channels are not as far apart as some others are and the level of channel separation afforded by the diplexer allows a
significant range to be achieved even when both radios are running at 25 watts transmit power. The significant advantage of this setup for fixed site use is
that only one high band antenna is required at the remote site. In the Lake District, we are blessed with some very obliging farmers, landowners and residents
all of whom are helping to provide teams with remote antenna sites. However we are eternally mindful of the fact that we live and operate inside a national
park where planning restrictions frequently make their presence felt. The ability to get a radio linked remote site running using only the antenna that’s already
on the mast, is a big advantage.
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