Barrett 950 HF - Page 129

Day
Night
The sun is higher, the best frequency to use is higher
The sun is lower, best frequency to use is lower
A to B - Possible optimum working frequency is 3 MHz
A to C - Possible optimum working frequency is between7-9MHz
A to D - Possible optimum working frequency is between 13-16 MHz
A to B - Possible optimum working frequency is 3 MHz
A to C - Possible optimum working frequency is between5-7MHz
A to D - Possible optimum working frequency is between 9 -12 MHz
EARTH
I
O
N
O
S
P
H
E
R
E
950
ON
-
VOLON
-
VOL
BARRETT
950
ON
-
VOLON
-
VOL
BARRETT
950
ON
-
VOLON
-
VOL
BARRETT
950
ON
-
VOLON
-
VOL
BARRETT
A
B
C
D
20km
800km
2000km
EARTH
I
O
N
O
S
P
H
E
R
E
950
ON
-
VOLON
-
VOL
BARRETT
950
ON
-
VOLON
-
VOL
BARRETT
950
ON
-
VOLON
-
VOL
BARRETT
950
ON
-
VOLON
-
VOL
BARRETT
A
B
C
D
20km
800km
2000km
BARRETT 950 HF TRANSCEIVER
PAGE 129