Re: [Repeater-Builder] Looking for Microwave Associates 7R011T Isolator Tuning Procedure

[Micheal Salem]

Bob Dengler wrote: "Initial tuning of this unit must be done at power levels of 10 watts or less. Severe damage can result to untuned units by the application of power in excess of this limit." I can see a TX being damaged by excessive reflected power from an untuned isolator's input, but damage to the isolator? Bob:  I think that they may be concerned about off resonance circulating currents or voltages during tuneup which could demagnetize (or change the permanent fields of the internal magnets and damage the isolator. I would have to look it up, but I think that this isolator takes up to at least 100 watts.  That would be when it is in resonance. I have run 65 watts through it with not much trouble. Micheal Salem Yahoo! Groups Links To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/   To unsubscribe from this group, send an email to: [EMAIL PROTECTED]   Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.