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ANT & BPF SW
COOLING
The centrifugal blowers provide the necessary cooling of the amplifier, even during long
contests. Themain blower is activated when you power on the PA and it is turned off when
after-cooling has finished(approx. 1-5 min after switching off the PA depending on the
temperature of the tube). Thesupplemental rear mounted fan is turned on depending on the
temperature of the air exiting from the tube tower of the amplifier. It is activated when the exit
temperature exceeds 70°C and is switched off at 60°C.
HF2013DX-A HF AMPLIFER INSTRUCTION MANUAL
DB-25 is used for switching of external HP BPF or external Antenna
Switch device. Maximum switching parameters are 30V / 0.5A.
PIN OUT:
1. ANTENNA PORT 1
2. ANTENNA PORT 2
3. ANTENNA PORT 3
4. ANTENNA PORT 4
5. ANTENNA PORT 5
6. ANTENNA PORT 6
7. ANTENNA PORT 7
8. ANTENNA PORT 8
9. ANTENNA PORT 9
10. ANTENNA PORT 10
11. COMMON PORT OF ANT SW
12. NC
13. GND
14. BPF 160M
15. BPF 80M
16. BPF 40M
17. BPF 30M
18. BPF 20M
19. BPF 17M
20. BPF 15M
21. BPF 12M
22. BPF 10M
23. COMMON BPF PORT
24. NC
25. GND
Page 15 of 37
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