Alpha 9500 User Manual Page 46
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Alpha 9500 Linear Amplifier User Manual RF Concepts, LLC
Operating the Amplifier Product Release 1
DOCNUMBER 9500
Document Issue 1.1
Page 5–8 February 2010
55
5
2b Press the desired antenna port twice.
2c While the antenna light is blinking, press the SAVE button.
The new antenna port value is now spread across all bands and segments
on User 1 or User 2.
Step 3 To listen (and transmit) on two antennas simultaneously:
3a Press the ANTENNA SELECT button for the first desired antenna
twice.
3b While the light is blinking, press the button for the second desired
antenna.
Both antenna lights should now be on and both antennas open for listening
and transmitting. The SWR is determined by the parallel combination of
the two antennas.
Step 4 Proceed to either “Autotuning,” page 5–8 or “Manual tuning,” page 5–9.
Autotuning Use autotune during initial setup to find correct tuning values.
NOTE
•
We recommend that you use user memories rather than
autotuning for normal operation.
•
If you use autotuning for normal operation, hunting behavior
usually indicates instability in the antenna or feed system. Repair
the antenna or feed system so that you can operate from fixed
tuning.
•
Autotuning may give slightly different tuning values when the
amplifier is retuned due to the existence of a small tuning dead
zone.
Procedure 5-3 Autotune the amplifier
Step 1 Start up the amplifier as described in “Start Up the Amplifier,” page 5–5.
Step 2 If necessary, select the antenna port for the desired band.
NOTE: If you operate on other than the default antenna port (port 4)
for one or more bands, you must manually select the port before
keying the amplifier on that band. To select the port, press the
ANTENNA SELECT button for the desired antenna port. The amplifier
stays on that port until you change the band segment. If you wish to
return to the same tuning settings, save the settings into memory.
When you return, the antenna port goes to the one last used for that
segment.
- RF Concepts 3
- Alpha 9500 Linear Amplifier 3
- Page ii February 2010 4
- Contents 5
- Terminology Term-1 6
- Schematics Schem-1 6
- List of Procedures 7
- Page vi February 2010 8
- Introduction 9
- 1.2 Product Capabilities 10
- 1.3 Safety Considerations 10
- DOCNUMBER 9500 11
- Document Issue 1.1 11
- February 2010 Page 1–3 11
- Page 1–4 February 2010 12
- RF Concepts, LLC 13
- Product Release 1 13
- February 2010 Page 2–1 13
- Figure 2-2 Amplifier back 14
- 2.2 Center-Partition Board 15
- 2.3 Controls and Display 15
- 2.4 Display Board 16
- 2.5 Firmware 17
- 2.6 Master-Control Board 17
- 2.7 Output-Tank Circuit 17
- 2.8 Power Connections 17
- 2.9 Power Supply 18
- Mains Board 19
- HV Board 20
- (Continued) 21
- Page 2–10 February 2010 22
- Preparing Your Station 23
- Page 3–2 February 2010 24
- February 2010 Page 3–3 25
- Page 3–4 February 2010 26
- Setting Up the Amplifier 27
- Cover screws 28
- Blower screw 28
- 4.2 Install the Transformer 29
- 4.3 Connect the Transformer 30
- February 2010 Page 4–5 31
- Page 4–6 February 2010 32
- Connect the cables 33
- Page 4–8 February 2010 34
- February 2010 Page 4–9 35
- 4.5 Set the Input Drive 36
- February 2010 Page 4–11 37
- Page 4–12 February 2010 38
- Operating the Amplifier 39
- Page 5–2 February 2010 40
- February 2010 Page 5–3 41
- Tuning modes 42
- Mode Description 42
- User 1/User 2 42
- 5.2 Start Up the Amplifier 43
- Page 5–6 February 2010 44
- Remember 45
- Page 5–8 February 2010 46
- Manually tune the amplifier 47
- Page 5–10 February 2010 48
- Program the amplifier memory 49
- 5.5 Operate the Amplifier 50
- Power up the amplifier again 51
- Page 5–14 February 2010 52
- February 2010 Page 6–1 53
- 6.2 Operate from the PC 54
- Main window 55
- Simulated front panel 56
- Tools menu 56
- Options menu 57
- Page 6–6 February 2010 58
- 7.1 Clean the Chassis 59
- 7.2 Retune the Amplifier 60
- 7.4 Upgrade Firmware 61
- USB cable 62
- On the Secondary 63
- Display board 64
- Mains board 64
- Sound generator board 65
- Stepper motor board 65
- Programming cable, end 1 66
- USB board 66
- Programming cable, end 2 67
- 3-pin header 67
- Board Filename 68
- Diagnosing Faults 69
- Fault code 1 70
- Fault code 2 72
- Fault code 3 73
- Fault code 4 73
- Fault code 5 74
- Fault code 6 74
- Fault code 7 74
- Fault code 8 74
- Fault code 9 75
- Fault code 10 75
- Fault code 11 76
- Fault code 12 77
- Fault code 13 77
- Fault code 14 77
- Fault code 16 78
- Fault code 17 78
- Fault code 18 78
- Fault code 15 78
- Fault code 19 79
- Page 8–12 February 2010 80
- Terminology 81
- Page Term–2 February 2010 82
- February 2010 Page Term–3 83
- Product Release 1 Terminology 83
- Page Term–4 February 2010 84
- Schematics 85
- Page Schem–2 February 2010 86
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