update id52 page (make headers easier to read/follow)

content/equipment/handhelds/icom-id52/index.md

@@ -3,7 +3,7 @@ title = 'Icom ID-52'
 summary = '''A really awesome handheld radio---and it does D-STAR as a bonus.
   Check it out---it's cool!'''
 date = '2021-12-10'
-lastmod = '2023-10-22T10:44:55+0000'
+lastmod = '2023-10-22T10:46:59+0000'
 #categories = [ 'amateur-radio' ]
 showBreadcrumbs = true
 showReadingTime = false
@@ -105,9 +105,7 @@ The Icom ID-52 lets you receive and transmit pictures either on direct frequenci
 or on reflectors (both need to be digital, just to mention that). I also haven't
 used this either for now.
 
-## Measurements
-
-### Output power on 2m (144 MHz)
+## Output power on 2m (144 MHz)
 
 Due to my new tinySA ultra I've measured the output power of the ID-52
 <mark>around 145.550 MHz</mark> with the following outcome.
@@ -129,7 +127,7 @@ The measured output power around 144.550 MHz are:
 | Mid   | 3.35 W |
 | High  | 5.96 W |
 
-### Harmonics on 2m (144 MHz)
+## Harmonics on 2m (144 MHz)
 
 
 ![harmonics](harmonics.png "I could not see any harmonics at <mark>145.550 MHz</mark>.")