Radios, cameras, vehicles and the control room. How to choose the set in the request.
Cameras
A DVR stores the cameras wired to the unit. An NVR records IP cameras on the site network. They are two recorders, not the same box under another name.
Cameras
A fixed camera covers one view: the door, the corridor, the gate. A PTZ pans and zooms across a wide area. One does not replace the other across the whole site.
Perimeter
A thermal camera sees heat when the light does not reach. It does not replace the camera that needs to identify a face in colour. On the perimeter the two roles are different.
Reception
LPR reads the plate at the vehicle entrance. It is not the camera that only watches the gate. The number of lanes and the model are set in the quote.
PoC radio
A PoC radio uses the mobile network or Wi-Fi. With a Starlink antenna, the team can talk even far from terrestrial coverage.
UHF and VHF
UHF behaves better in buildings and cities. VHF goes farther in open country. The choice depends on the terrain.
Two-way vs PoC
A two-way radio talks radio to radio on UHF or VHF, without the internet. PoC talks over a data network. They are two systems, not two bands.
TETRA and DMR
TETRA and DMR are two digital two-way radio standards. Both talk on a frequency, without the internet. They differ in channel architecture and in the kind of operation they suit.
PoC radio
PoC links distant posts while data is up. With no SIM and no Wi-Fi, PTT stops. Both sides matter before you order.
PoC radio
The handset price is not the budget. PoC also needs the service account, SIM or Wi-Fi, accessories and support. Figures close in the request.
PoC radio
There is no published figure at which PoC becomes cheaper than a repeater. It depends on how many radios, how many sites and how many years. Figures close in the quote.
Hytera
PoC Manager reads the Hytera radio, stores the PoC account and the Wi-Fi network, and writes the configuration to the set.
Satellite PTT
Satellite PTT is group PTT over the Iridium network. It is not a satellite phone. It does not replace site UHF or PoC while data is up.
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