Difference between revisions of "Antenna Analyzer"

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{{Equipment  
 
{{Equipment  
 
| Name = MFJ 269B Antenna Analyzer
 
| Name = MFJ 269B Antenna Analyzer
| Intro = This is the Antenna Analyzer in the e-room.  It's been acting sporadically insane recently and [http://www.radio4all.se/sdxa/mfj-269.htm I need to fix it].  Although, mysteriously it seemed to work for several hours without issue on 8 Jan 2012.  Use with a healthy dose of suspicion.
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| Intro = This is the Antenna Analyzer in the e-room.  In 2011 it exhibited some strange behavior when cold, but we haven't been able to reproduce this recently. We may [http://www.radio4all.se/sdxa/mfj-269.htm replace a transistor] in it at some point.
 
| Owner = [[User:n8vi|Brad Tarratt]]
 
| Owner = [[User:n8vi|Brad Tarratt]]
 
| StorageLocation = In the plastic box next to the amateur radio station in the e-room.
 
| StorageLocation = In the plastic box next to the amateur radio station in the e-room.
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* Do not leave without charging if V<sub>batt</sub> drops below 13V.  V<sub>batt</sub> is displayed on the LCD at boot, and a charging cable is included in the box.   
 
* Do not leave without charging if V<sub>batt</sub> drops below 13V.  V<sub>batt</sub> is displayed on the LCD at boot, and a charging cable is included in the box.   
 
* Do not power on with UHF button depressed.  Press UHF button AFTER power up.  If you are surprised by this, you didn't read the manual.  Please do that.
 
* Do not power on with UHF button depressed.  Press UHF button AFTER power up.  If you are surprised by this, you didn't read the manual.  Please do that.
| Instructions = Currently unit is acting crazy and probably needs a transistor replacedIt seems to work somewhat better after running a while.
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| Instructions = If you get strange results, try letting the unit warm up a bitAlso, let me know, I'll reprioritize replacing the transistor.
| MaintenanceInfo = I will personally be maintaining this unit in the next month or two.
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| ToDos = I need to make it operate sanely again.
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| FAQs =
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* Q: when will you have it fixed?
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* A: Probably before February.
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}}
 
}}
 
[[Category:Electronics Shop]]
 
[[Category:Electronics Shop]]

Revision as of 15:56, 26 December 2013



MFJ 269B Antenna Analyzer

This is the Antenna Analyzer in the e-room. In 2011 it exhibited some strange behavior when cold, but we haven't been able to reproduce this recently. We may replace a transistor in it at some point.

Basic Info

  • Ownership: Brad Tarratt
  • Location: In the plastic box next to the amateur radio station in the e-room.
  • What it looks like:

Mfj269B.jpg

Manufacturer Information

  • Make/Model: MFJ 269B
  • Part Number: not specified

Documentation

Full documentation is included in the plastic box the unit is in. Or here.

Rules

  • Read the manual before using
  • Do not remove from shop (parking lot okay)
  • Do not leave without charging if Vbatt drops below 13V. Vbatt is displayed on the LCD at boot, and a charging cable is included in the box.
  • Do not power on with UHF button depressed. Press UHF button AFTER power up. If you are surprised by this, you didn't read the manual. Please do that.

Instructions

If you get strange results, try letting the unit warm up a bit. Also, let me know, I'll reprioritize replacing the transistor.

Other References

not specified

Maintenance

not specified

Things that Need to be Done

not specified

FAQs

none yet