[Elecraft] [KX3] KXFL3 dual-Passband Roofing Filter

[Matt VK2RQ]

Calibration is not hard, you just need some sort of signal source. I used a second ham rig connected to a dummy load, loosely coupled to the KX3 with a short length of insulated wire placed nearby. Even if I ordered the radio+filter pre-calibrated in the factory, I'd still go through the RX nulling procedure, since you can do it per band (I think when the KX3 first came out the factory would only calibrate on one band and extrapolate from there, but then they released a new firmware+procedure allowing the user to custom calibrate on each band individually. Not sure what the standard factory calibration procedure is there days).

73,
Matt VK2RQ

> On 3 Jun 2014, at 9:56 am, Joshua Gould <jg.k8wxa at gmail.com> wrote:
> 
> I'm following this discussion closely as I'm not sure about ordering the
> passband filter when I order my KX3 or not.  I think my girlfriend wants me
> to because for every dollar I spend, she gets a dollar...I am leaning
> toward ordering it because I don't have the equipment to calibrate
> everything if I order it later...
> 
> Joshua Gould
> K8WXA
> 
> 
>> On Mon, Jun 2, 2014 at 7:43 PM, Charlie T, K3ICH <pincon at erols.com> wrote:
>> 
>> So, you told her to go ahead and re-decorate the bathroom  (with a new
>> shower curtain from Wal-Mart) right?
>> 
>> Chas
>> ----- Original Message ----- From: "Bill Frantz" <frantz at pwpconsult.com>
>> To: <elecraft at mailman.qth.net>
>> Sent: Monday, June 02, 2014 1:11 PM
>> Subject: [Elecraft] [KX3] KXFL3 dual-Passband Roofing Filter
>> 
>> 
>> My wonderful wife said, "Go ahead and order a KX3. Happy Birthday!", so
>>> now I am working on options. How valuable is the KXFL3 dual-Passband
>>> Roofing Filter? Should I order it now, or see if I need it and order it
>>> later?
>>> 
>>> 73, Bill, AE6JV
>>> 
>>> ------------------------------------------------------------
>>> ---------------
>>> Bill Frantz        |"Web security is like medicine - trying to do good for
>>> 408-356-8506       |an evolved body of kludges" - Mark Miller
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