[Elecraft] Soon to be an Elecraft(er)!

[Oliver Dröse]

Brendon,

it is per band and it makes a real difference!

73, Olli

Contest, DX & radio projects: http://www.dh8bqa.de


Am 07.10.2016 um 17:59 schrieb Brendon Whateley:
> Given my understanding of the roofing filter design in the KX3, I don't
> think there is any per-band adjustments to make. IIRC, the filter is an
> analog low-pass filter that operates after the direct down-conversion.
>
> If I'm wrong, then please set me straight. Especially because I'm
> considering adding the filter to my KX3.
>
> - Brendon
>
> On Thu, Oct 6, 2016 at 11:35 PM, Matt Maguire <matt.vk2rq at gmail.com> wrote:
>
>> Does the factory do a full per-band calibration, or do they just calibrate
>> on 20m and extrapolate? If the latter I'd suggest to do the full per-band
>> calibration yourself even for a factory-fitted roofing filter, as it does
>> make a difference (obviously back up your config first so you can restore
>> to factory settings/calibration if needed)
>>
>> 73, Matt VK2RQ
>>
>>
>>
>>
>> On Fri, Oct 7, 2016 at 5:38 AM +1100, "Ray Sills" <raysills3 at verizon.net>
>> wrote:
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> Also, IF you order the roofing filter for the KX3…. even with a kit
>> purchase…. the factory will calibrate it for you, so all you need do is
>> install the little board.  They have a test jig, so that the filter will be
>> tested with YOUR particular main board.  Best of both worlds… save some
>> money, and get free factory calibration.
>>
>> 73 de Ray
>> K2ULR
>> KX3 #211
>>
>>
>>> On Oct 6, 2016, at 12:00 PM, Walter Underwood  wrote:
>>>
>>> The roofing filters require some calibration. If they are
>> factory-installed, Elecraft does that for you. All the other options are
>> exactly the same whether factory-installed or user-installed.
>>> wunder
>>> K6WRU
>>> Walter Underwood
>>> CM87wj
>>> http://observer.wunderwood.org/ (my blog)
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>>
>>
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