Show Menu
Cheatography
  1. Home >
  2. Cheat Sheets >

Ham Radio Reference Cheat Sheet (DRAFT) by

A bunch of useful information for ham radio

This is a draft cheat sheet. It is a work in progress and is not finished yet.

Letters

A
di-dah
B
dah-di­-di-dit
C
dah-di­-da­h-dit
D
dah-di-dit
E
dit
F
di-di-­dah-dit
G
dah-da­h-dit
H
di-di-­di-dit
I
di-dit
J
di-dah­-da­h-dah
K
dah-di-dah
L
di-dah­-di-dit
M
dah-dah
N
dah-dit
O
dah-da­h-dah
P
di-dah­-da­h-dit
Q
dah-da­h-d­i-dah
R
di-dah-dit
S
di-di-dit
T
dah
U
di-di-dah
V
di-di-­di-dah
W
di-dah-dah
X
dah-di­-di-dah
Y
dah-di­-da­h-dah
Z
dah-da­h-d­i-dit

Numbers

1
di-dah­-da­h-d­ah-dah
2
di-di-­dah­-da­h-dah
3
di-di-­di-­dah-dah
4
di-di-­di-­di-dah
5
di-di-­di-­di-dit
6
dah-di­-di­t-d­it-dit
7
dah-da­h-d­i-d­i-dit
8
dah-da­h-d­ah-­di-dit
9
dah-da­h-d­ah-­dah-dit
0
dah-da­h-d­ah-­dah­-da­h-dah

Pro-Signs

<AA­A>
Full Stop
<AR>
End of Message
<AS>
Stand by
<BT>
Break (between text)
<NR>
Number
<SK>
End of transm­ission. Close down
<K>
Open invitation to transmit
<KN>
Invitation to named station

Punctu­ation

.
di-dah­-di­-da­h-d­i-dah
,
dah-da­h-d­i-d­i-d­ah-dah
?
di-di-­dah­-da­h-d­i-dit
/
dah-di­-di­-da­h-dit

Common Q Codes

QSO
Message
QRP
Low power
QRO
High power
QTH
Home
QRL
Is this frequency in use?
QSB
Fading
QRM
Local interf­erence
QRL
Is this frequency in use?
QRZ
Who is calling me?
QRS
Send slower
QRQ
Send faster

Abbrev­iations

agn
again
ant
antenna
bk
break in
b4
before
cpi
copy
cu
see you
dr
dear
es
and
fer
for
gd/e
good day / evening
hpe
hope
pse
please
rig
transc­eiver
rprt
report
sri
sorry
tnx
thanks
tu
thank you
ur
your
vy
very
wx
weather
73
best wishes
 

Common Freque­ncies

160m
1.818MHz
FISTS
 
1.836MHz
QRP
80m
3.555Mhz
QRS
 
3.558MHz
FISTS
 
3.560MHz
QRP
40m
7.028MHz
FISTS
 
7.030MHz
QRP
30m
10.106MHz
QRP
 
10.116MHz
QRP
 
10.118MHz
FISTS
20m
14.055MHz
QRS
 
14.058MHz
FISTS
 
14.060MHz
QRP
17m
18.085MHz
FISTS
 
18.086MHz
QRP
 
18.096MHz
QRP
15m
21.055MHz
QRS
 
21.060MHz
QRP
 
21.058MHz
FISTS
12m
24.906MHz
QRP
 
24.918MHz
FISTS
10m
28.055MHz
QRS
 
28.058MHz
FISTS
 
28.060MHz
QRP

Lidscw.org Standard Short QSO

CQ CQ CQ de G1AAA G1AAA G1AAA

G1AAA de G1ZZZ

G1ZZZ de G1AAA <BT> ge tu fer call om <BT> Name is Alex <BT> QTH is London <BT> ur rst 599 <BT> HW? G1ZZZ de G1AAA

G1AAA de G1ZZZ tu Alex <BT> ur rst 599 <BT> Name is David<­BT> QTH is Bath <BT> Rig is ICOM 7000 pwr 25w ant is dipole <BT> G1AAA de G1ZZZ<­AR>

G1ZZZ de G1AAA tu fer info David <BT> rig is Kenwood 850 pwr 25w ant is dipole <BT> ok 73 tnx fer QSO David<­BT> G1ZZZ de G1AAA

G1AAA de G1ZZZ ok Alex tnx fer nice QSO 73 <BT> G1AAA de G1ZZZ <SK>

It is common to send R before replying to signal that the previous message is unders­tood. It is also common to send di-dit at the end of the QSO as a final. These are not obliga­tory.
 

Common Capacitor Codes

100
10pF
101
100pF
102
1000pF (1.0nF)
103
10nF
104
100nF
105
1000nF (1.0uF)
108
0.1pF
109
1pF
150
15pF
151
150pF
152
1500pf (1.5F)
153
15nf
154
150nF
155
1500nF (1.5uF)
158
0.15pF
159
1.5pF
220
22pF
221
220pF
222
2200pF (2.2nF)
223
22nF
224
220nF
225
2200nF (2.2uF)
228
0.22pF
229
2.2pF
capacitor codes work on a system just like many other codes. The above table gives a few quick references but what if that code is not on the list, how do you work it out. Simply....

1st number is the 1st signif­icant number
2nd number is the 2nd signif­icant number
3rd number id the multiplier
4th character is the tolerance

for example
220k
1st number is 2
2nd number is 2
3rd number is multiply by 10 zeros
4th character is k which refers to +- 10%

Resistor Colour Codes