[Elecraft] K3 Crystal Filter Installation

[Bill W4ZV]

G4ILO wrote:
> 
> 
> Gary Gregory-3 wrote:
>> 
>> Hello,
>> 
>> It would appear as though I have bit off more than I can chew as the
>> saying
>> goes.
>> Today two optional filters arrived and have to be installed.
>> Currently there are 3 filters used (2.8, 2.1 and 400Hz) and they are in
>> positions FL-1, FL-2 and FL-3
>> I have to add the FM and 6.0Khz filters.
>> I assume (hate that word) that reading the manual I will place the widest
>> filter in FL-1..? (6.0Khz, followed by the FM, 2.8, 2.1 and 400..??)
>> I have also become confused with the values to enter in the Config menu.
>> If anyone can e-mail me direct with some more specific details I would
>> greatly appreciate it.
>> regards,
>> Gary
>> K3/100 #679
>> 
> Actually the FM is the widest filter, and should go in FL-1, followed by
> the 6.0, etc.
> 
> If any of the filters are 5-pole filters (bare PCBs with crystals on them) 
> they have a number on them which needs to be entered in the config menu.
> If you are moving a 5 pole filter you will have to zero out the number you
> entered at its old position, and re-enter it at the new one.
> 
> You will then have to go through all the filter entries in the menu to
> ensure that the K3 knows which filter is installed at each position, and
> then you will have to specify which filter is enabled for each mode. It's
> all described at the back of the User Manual.
> 

The easiest way to do the latter is to use the K3 Utility used for
downloading new firmware.  Click Configuration and Edit Crystal Filters. 
You can enter everything very quickly without even having to go into the
K3's CONFIG menu (or even the Manual).  When you're done, click Save K3
Configuration on the Utility's Configuration page and the new filter
settings will be stored.

73,  Bill 

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