Update for 24-01-22 11:45

tech/HF.wiki

@@ -0,0 +1,9 @@
+= HF =
+
+HF or high frequency is the band with frequencies between 3mhz and 30mhz. It is
+the most prized band due to its ability to reflect off the ionosphere.
+
+The HF band does not have operating channels, and therefore most radios for HF
+are designed to be tuned contiuniously.
+
+

tech/Ham.wiki

@@ -27,6 +27,7 @@ The following are the Public Use radio bands
 == Frequency Ranges ==
 
 see [[frequency_range]]
+see [[HF]]
 
 == Electronics ==
 

tech/frequency_range.wiki

@@ -15,17 +15,17 @@ standardized. They appear below
 | Extreme High Freq | EHF | 30ghz - 300ghz |                                   |
 
 To calculate a wavelength from a frequency
-
+```
 WL = c / f
-
+```
 Where WL is wavelength,
 c is speed of light (3 * 10^8 m/s)
 f is frequency
 
 A shorthand is
-
+```
 WL = 300 / f
-
+```
 Where f is in Mhz
 
 == Frequency to Wavelength ==