Reddit reviews Sirio GP 430 LB/N 380 - 480 MHz UHF Base Antenna
We found 1 Reddit comments about Sirio GP 430 LB/N 380 - 480 MHz UHF Base Antenna. Here are the top ones, ranked by their Reddit score.
Base station antenna, Wide-band Unity-gain, Omnidirectional Protection from static discharges DC-Ground Perfect protection against the worst weather conditions Made of anodized aluminium alloy Stainless steel hardware Side mast mounting allowed by optional bracket FT-2 code 2510004.00Type: 1/4 wave ground plane large band Frequency range @ SWR <=1.7: 380 - 480 MHz Impedance: 50 OhmsRadiation (H-plane): 360° omnidirectional Radiation (E-plane): beamwidth @ -3 dB = 80° Radiation angle: 0° Polarization: linear verticalGain: 0 dBd - 2.15 dBi Max. power (CW) @ 30°C: 300 WattsGrounding protection: All metal parts are DC-grounded, the inner conductor shows a DC short - Connector: GP 430 LB-N: N-female
Is there a repeater in your area?
If so, then look at a Yagi (beam) and mount it. Something like this. Even a 5-element Yagi for GMRS frequencies is not very big. Point it at the repeater.
If there's not a repeater, then you'll want something omni-directional like a 5/8-wave ground-plane for simplex.
For coax, LMR-400 is a good choice. At UHF frequencies, you need much better coax to keep the losses down.
Sirio makes a ground-plane that's wideband enough to work on both GMRS and amateur UHF. It's only unity gain, but it might be nice to have one antenna for both if you do end up getting your amateur licence.
Depending on where you live, local ordinances can put up significant barriers to a tower -- even a 50-foot tower. It's not that uncommon for a city to require an engineering study, electrical inspections, permits, or additional insurance. They may also require licensed contractors to do the work. Check out the ordinances first.