Table:
0
A
B
C
D
E
F
1
Call sign
Frequency MHz
City of license
ERP W
Class
FCC info
2
K206CC
89.1
Lockwood, California
10
D
FCC
3
K205BN
88.9
Los Gatos, California
77
D
FCC
4
K257BE
99.3
Los Gatos, California
10
D
FCC
5
K208CW
89.5
Monterey, California
74
D
FCC
6
K272CG
102.3
Morro Bay, California
7
D
FCC
7
K220BV
91.9
San Jose, California
10
D
FCC
8
K276BR
103.1
Santa Cruz, California
5
D
FCC
9
K236AJ
95.1
Soledad, California
10
D
FCC
10
K217CO
91.3
Carmel, California
10
D
FCC

Questions and formulas:
Question: What ERP W has a 95.1 MHZ frequency?
Formula: SUM(FILTER(D1, B1=95.1))
Formula2: SUM(FILTER(D2:D10, B2:B10=95.1))
Level: easy
Question: What call sign is licensed in soledad, california?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,C1="soledad, california"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F10,C2:C10="soledad, california"),1))
Level: medium
Question: What is the MHZ frequency in carmel, california with an ERP W over 10?
Formula: SUM(FILTER(B1, (C1="carmel, california")*(D1>10)))
Formula2: SUM(FILTER(B2:B10, (C2:C10="carmel, california")*(D2:D10>10)))
Level: easy
Question: What class has a MHZ frequency under 103.1 licensed in morro bay, california?
Formula: LET(query1,LET(query1,FILTER(A1:F1,C1="morro bay, california"),SUMMARIZE(CHOOSECOLS(query1,5),SUMX(CHOOSECOLS(query1,2)))),FILTER(query1,CHOOSECOLS(query1,2)<103.1))
Formula2: LET(query1,LET(query1,FILTER(A2:F10,C2:C10="morro bay, california"),SUMMARIZE(CHOOSECOLS(query1,5),SUMX(CHOOSECOLS(query1,2)))),FILTER(query1,CHOOSECOLS(query1,2)<103.1))
Level: hard