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14.2.7
PTB/BCD Connector Pinout
PTB input – When a 5 to 15‐volt DC signal is applied to one of the pins described in the following table, the
tuner will select the corresponding band. The pins are opto‐isolated. Pin 15 is the signal ground.
Pin
Band
Frequency
1
160m
1.8 – 2.0 MHz
2
80m
3.5 – 4.0 MHz
3
40m
7.0 – 7.3 MHz
4
30m
10.10 – 10.15 MHz
5
20m
14.00 – 14.35 MHz
6
17m
18.068 – 18.168 MHz
7
15m
21.00 – 21.45 MHz
8
12m
24.89 – 24.99 MHz
9
10m
28.0 – 29.7 MHz
10
6m
50.0 – 54.0 MHz
15
Signal Ground
i – The 60‐meter band cannot be selected with this method.
BCD input – A 4‐bit BCD signal (5 to 15‐volt DC) selects a band. The pins are opto‐isolated. Pin 15 is the signal
ground.
The BCD inputs are designed for connection directly to a band decoder output provided by radios such as Yaesu
and Elecraft.
Band
160m 80m
Frequency
1.8
(MHz)
Pin 11
H
Pin 12
L
Pin 13
L
Pin 14
L
Hex Value
1
i – The 60‐meter band cannot be selected with this method.
14.3 Power Derating Table
The tuner will scale maximum allowed power input based on the following schedule:
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40m
30m
3.5
7
10
L
H
L
H
H
L
L
L
H
L
L
L
2
3
4
SWR
< 1.x:1
1.x:1 to 1.x:1
20m
17m
15m
14
18
21
H
L
H
L
H
H
H
H
H
L
L
L
5
6
7
Maximum Power
2000W
xxxW
Page 71 of 72
12m
10m
6m
24
28
50
L
H
L
L
L
H
L
L
L
H
H
H
8
9
A
7 June 2021(FW:0.9.12, Utility: 0.9.12)
None
NA
L
L
L
L
0
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