The RG191 (US part # 450-0191) is an IP67 rated, 915 MHz LoRa WAN Gateway manufactured by Laird (formerly LSR / LS Research.) This LoRa gateway is typically used in smart metering, remote sensing, Industrial automation, monitoring and M2M / IoT.
What antenna do we recommend for 800 MHz Uniden / Bearcat PoliceScanners? First of all, let’s define what the 800 MHz police scanner band really is. Public safety radio systems, such as those used by police, firefighters and emergency medical technicians, operate in several portions of the 800 MHz band, which consists of spectrum at 806-824 MHz paired with spectrum at 851-869 MHz.
What is the best antenna for off-road vehicles (jeeps, UTV’s, dune buggies) using GMRS, or General Mobile Radio Service? The GMRS frequency ranges between 462-467 MHz and is excellent for off-roaders looking to stay in touch out on the trails. These antennas ideally utilize a metallic “ground-plane” of at least 1x1 feet.
So, how can overcome this? Easy, you can use an NGP or No Ground Plane required antenna. We have found that the best antenna for GMRS radios where little to no metallic ground plane is available are the Laird – Antenex B4505CNS(chrome) and BB4505CNS (black) antennas.
What does the “AD” pre-fix mean that is commonly found on external antennas and cable extensions for Telguard cellular alarm communicators?
The truth is that the “AD” prefix is only used by a particular distributor of these antennas, the company is “ADI” and the prefix has no significance. The actual manufacturer part #’s are EXDL-0 (antenna) and ACD-xx (xx denotes the extension cable length in feet).