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Finalygotabeltfed
For anyone looking to beef up their outside or inside security in either an occupied or unoccupied building I highly recommend the Dakota Alert MURS motion sensor/transmitter.
I have been running the UHF version of this type for a couple of years now at my place down south and it has functioned very well. The output power of these UHF units is very low and range is limited and there's no external antenna jack. They are great for a close in driveway annunciator or through the door chime but not real great for distant perimeter security.
I'm now switching to the VHF MURS band transmitters for some extended range. These units have up to 2 watts output, have external antenna jack (SMA female) which is common to many available HT antennas if,you want to put a 1/4 wave ducks on it or adapt it to a BNC and run a cable up a tree to a wire ground plane or maybe a 5/8ths wave mobile antenna.
These MURS models will give me the capability to monitor a radio while out on the farm and hear if there is any activity on other parts of the property. The UHF models didn't have enough useable range to cover the property.
Operation on any of the five MURS frequencies and have 38 selectable PL tone(CTCSS) and selectable zones, 1-4.
They will also run on 12v from a sealed lead acid battery. They come with a battery pack that holds 6 AA penalties but this can be replaced and a 12v battery wired to it. The higher voltage will increase the power output also, which is usually factory set at 1.1W with a 9v source.
They transmit a voice message three times on the frequency you select, then reset. The reset time is selectable also. They can be used with the base station or with any VHF portable or scanner capable of receiving the MURS frequencies.
These units can be used out in the field while camping to set up a perimeter against undetected intrusion by man or animal.
I have no affiliation with this company other than being a satisfied user of their products.
Check them out, very versatile addition and great force multiplier for any location.
Dakotaalert.com
I have been running the UHF version of this type for a couple of years now at my place down south and it has functioned very well. The output power of these UHF units is very low and range is limited and there's no external antenna jack. They are great for a close in driveway annunciator or through the door chime but not real great for distant perimeter security.
I'm now switching to the VHF MURS band transmitters for some extended range. These units have up to 2 watts output, have external antenna jack (SMA female) which is common to many available HT antennas if,you want to put a 1/4 wave ducks on it or adapt it to a BNC and run a cable up a tree to a wire ground plane or maybe a 5/8ths wave mobile antenna.
These MURS models will give me the capability to monitor a radio while out on the farm and hear if there is any activity on other parts of the property. The UHF models didn't have enough useable range to cover the property.
Operation on any of the five MURS frequencies and have 38 selectable PL tone(CTCSS) and selectable zones, 1-4.
They will also run on 12v from a sealed lead acid battery. They come with a battery pack that holds 6 AA penalties but this can be replaced and a 12v battery wired to it. The higher voltage will increase the power output also, which is usually factory set at 1.1W with a 9v source.
They transmit a voice message three times on the frequency you select, then reset. The reset time is selectable also. They can be used with the base station or with any VHF portable or scanner capable of receiving the MURS frequencies.
These units can be used out in the field while camping to set up a perimeter against undetected intrusion by man or animal.
I have no affiliation with this company other than being a satisfied user of their products.
Check them out, very versatile addition and great force multiplier for any location.
Dakotaalert.com
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