How far can a marine radio transmit?
Your VHF radio is intended mainly for short range communications, generally 5-10 miles, and at least 20 miles to a USCG station. To communicate at longer ranges, you will normally need a satellite telephone or an MF/HF marine radiotelephone.
How do I get more range on my VHF radio?
Increasing the antenna height can also increase distance, so mount your antenna as high as possible, such as on top of your boat’s hardtop or radar arch. You can also get greater range with a longer antenna — it has a larger radiating element. Additionally, keep in mind that not all VHF radios are created equally.
What size VHF antenna do I need for my boat?
Usually a 6 dB antenna is recommended for boats over 24 feet and a 9 dB antenna is recommended for boats over 32 feet. Longer antennas generally have higher dB ratings but check the technical specifications of the antenna to be sure. Additionally, height is always an important factor.
How far will a 50 Watt VHF radio transmit?
Double this to give 11.2 miles. This assumes that both stations are at the same height above sea level. If one station is higher than the other, the answer will be greater than 11.2 miles. Providing that there are no obstacles between the two stations (buildings, hills, mountains, etc.)
How can I improve my VHF antenna reception?
Larger brass or silver plated internal elements on the antenna will be better performers and improve the transmission and reception of your signal. Notice the type of coax used with your antenna. All coax cable will increase incremental loss to your VHF system.
Why do boats have 2 antennas?
The advantages of the dual antenna Not only does the installation of a second antenna give better readability to the AIS signal, but it can also serve as an emergency antenna for VHF. Just allow enough length behind the unit to disconnect the antenna from the AIS and connect it to the VHF.
How long do VHF antennas last?
5 to 8 years
At least one marine electronics dealer we interviewed said your VHF antenna was an item that should be replaced annually. Another said that a good antenna should last 5 to 8 years (depending on whether or not it was used as a grab handle)! One manufacturer told us that 80% of all VHF problems are antenna related.
How long should my marine antenna be?
“As a general rule, antenna height should be less than half the length of the boat,” Catoe says. Higher-dB antennas generate greater effective radiated power, and that can translate into greater range.
What is a good long range radio?
7 Best Long-Range Two-Way Radios in 2022 (Review)
- Midland GXT1050VP4 Long Range Two-Way Radios.
- Midland LXT600VP3.
- Motorola Talkabout T460.
- Midland LXT600VP3.
- Midland LXT118VP.
- Cobra PR562BLT.
- Uniden BCD436HP.