SMARC

Southwest Missouri Amateur Radio Club

HF, VHF, UHF, SHF, WTF?

UHF, VHF, all the HF’s! What do they mean??!

Well, its simple really. HF stands for “High Frequency.” This is generally reguarded to be around 3Mhz to 30Mhz.

VHF stands for “Very High Frequency” which is where most of the repeaters in southwest Missouri lay. This ranges from 30Mhz to 300Mhz. This is also where you’ll find a lot of business radios, public safety, FM Broadcast stations, and of course, amateur radio.

UHF stands for “Ultra High Frequency.” This is between 300Mhz and 3Ghz. There are MANY services in this range including businesses, public safely, amateur radio, computer WiFi, cell phones, TV stations, FRS/GMRS blister pack radios, cordless phones and MUCH more.

SHF is “Super High Frequency.” This is between 3Ghz and 30Ghz. Although there isn’t as much “action” up there for day to day use as there is in VHF and UHF, there are still many important services that use this range. The most popular consumer use is for 5Ghz WiFi on your new smart phones and computers.

As you can see, the naming of these ranges is not the most sophisticated, but the uses sure can be!

Here is the whole list:

ELF – Extremely Low Frequency – 3Hz to 30Hz
SLF – Super Low Frequency – 30Hz to 300Hz
ULF – Ultra Low Frequency – 300 Hz to 3Khz
VLF – Very Low Frequency – 3Khz 30Khz
LF – Low Frequency – 30Khz to 300 Khz
MF – Medium Frequency – 300Khz to 3Mhz
HF – High Frequency – 3Mhz to 30Mhz
VHF – Very High Frequency – 30Mhz to 300Mhz
UHF – Ultra High Frequency – 300Mhz to 3Ghz
SHF – Super High Frequency – 3Ghz to 30Ghz
EHF – Extremely High Frequency – 30Ghz to 300Ghz
THF – Tremendously High Frequency – 300Ghz to 3Thz