VHF radio signals are on the low end of the frequency scale when compared to UHF. Although, VHF signal wavelength is longer, allowing it to travel farther than UHF.
How far does VHF 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 far can a UHF radio transmit?
Since UHF transmission is limited by the visual horizon to 30–40 miles (48–64 km) and usually to shorter distances by local terrain, it allows the same frequency channels to be reused by other users in neighboring geographic areas (frequency reuse).
What is the range of VHF and UHF?
Car, Boat, & Other Radios (Mobile & Fixed-Mount)
|Average Range Guidelines *|
|Wattage||Flat Open Terrain (miles)||Urban Areas (miles)|
|4 watts (UHF)||4 – 6||1½ – 3|
|5 watts (VHF)||4½ – 6||1½ – 2|
|12 watt CB SSB (HF)||8 – 15||3 – 5|
Do police use VHF or UHF?
Police broadcast on frequencies in the UHF band. You are legally allowed to listen to unencrypted transmissions in these bands, but you need a license to broadcast.
Can VHF talk to CB?
CB or its close relatives fall into the HF frequency range (covering somewhere around 26 to 28 MHz, depending on country), so anything that accurately calls itself a VHF radio will not transmit (and most likely will not receive) CB.
What is the best frequency for two way radios?
Ultra-High Frequency (UHF) operates at 400-512 MHz. UHF two-way radios are best if there will be any indoor use, because the shorter radio waves can more easily penetrate obstructions that are found inside buildings.
Is VHF or UHF better?
In general, UHF radios are better for indoor use because their wavelengths are shorter and better able to penetrate through steel and concrete. … VHF radio signals tend to degrade more than UHF signals indoors.
Can VHF talk to UHF?
VHF and UHF Walkie Talkies can’t talk to each other. The terms UHF and VHF refer to the “wavelength”. … That said, if a VHF wave and a UHF wave are transmitted over an area without obstructions, then the VHF wave would travel around twice as far. Since the VHF frequency waves are bigger, then the antenna must be bigger.
Are there still UHF and VHF channels?
These issues are greatly reduced with digital television, and today most over-the-air broadcasts take place on UHF, while VHF channels are being retired. … The US UHF channel map now only includes channels 14 through 36.
Who uses UHF radio?
UHF (Ultra-High Frequency) Two-Way Radios
The trade-off for ultra-high frequency for distance is in building penetration or densely wooded areas. UHF frequencies are most commonly used and suitable for industries such as: Manufacturing, factories, and warehouses. Hotels, hospitality, and retail stores.