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RE: silent walkiw talkie alarm
banks have silent alarms that say this bank is being robbed. Mains powered and perm
You would have a problem with the radio in as there are too many variable. it would only beep and this could mean someone on your radio or it could be another radio. The chances are you would want more than one. The beep from one would be transmitted to all others. How would they be powered. After a while the batteries die, if yo had a solar charger it has to be visible and it is more likely to be spotted.
Probably better to just use ordinary alarm systems. Wireless and although you have the same power issues they do last a lot longer plus they can indicate what alarrm it was and thus where the threat is coming from and iy won't tell them there is someone here either. Much cheaper than even one PMR
Skean Dhude
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It is not the strongest of the species that survives, nor the most intelligent that survives. It is the one that is the most adaptable to change. - Charles Darwin
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