XG50 temp comp for KX3

[Thorpe, Jeffrey]

I am going to be doing the temperature compensation procedure for my KX3. The sheet for the XG50 says I can use a 3' 50-ohm cable. This probably seems like a silly question, but is it a big deal if I use a 6' cable? Is the signal so weak I have to worry about that extra (???) loss?

J
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[Thorpe, Jeffrey]

Thanks Walter - Pretty much what I was thinking, but thought I would ask. That only costs a couple electrons and a minute.

Jeff - KG7HDZ

On Jun 24, 2017, at 6:06 PM, Walter Underwood <[hidden email]<mailto:[hidden email]>> wrote:

Should not be a problem. Good ol’ RG-58 has 0.083 dB loss in three feet of cable at 50 MHz. That is about 2% of the signal. Another 2% won’t matter.

wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)

On Jun 24, 2017, at 5:47 PM, Thorpe, Jeffrey <[hidden email]<mailto:[hidden email]>> wrote:

I am going to be doing the temperature compensation procedure for my KX3. The sheet for the XG50 says I can use a 3' 50-ohm cable. This probably seems like a silly question, but is it a big deal if I use a 6' cable? Is the signal so weak I have to worry about that extra (???) loss?

J
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[Thorpe, Jeffrey]

One other question: at the very end of the extended procedure, it says (in bold) to kake sure I do the refcal procedure at room temperature as it says in the manual.
Am I supposed to do the refcal again? - after the extended procedure? Or is this just a note/reminder regarding the reference calibration that I do before the extended procedure?

Jeff - KG7HDZ

> On Jun 24, 2017, at 6:14 PM, Thorpe, Jeffrey <[hidden email]> wrote:
>
> Thanks Walter - Pretty much what I was thinking, but thought I would ask. That only costs a couple electrons and a minute.
>
> Jeff - KG7HDZ
>
> On Jun 24, 2017, at 6:06 PM, Walter Underwood <[hidden email]<mailto:[hidden email]>> wrote:
>
> Should not be a problem. Good ol’ RG-58 has 0.083 dB loss in three feet of cable at 50 MHz. That is about 2% of the signal. Another 2% won’t matter.
>
> wunder
> K6WRU
> Walter Underwood
> CM87wj
> http://observer.wunderwood.org/ (my blog)
>
> On Jun 24, 2017, at 5:47 PM, Thorpe, Jeffrey <[hidden email]<mailto:[hidden email]>> wrote:
>
> I am going to be doing the temperature compensation procedure for my KX3. The sheet for the XG50 says I can use a 3' 50-ohm cable. This probably seems like a silly question, but is it a big deal if I use a 6' cable? Is the signal so weak I have to worry about that extra (???) loss?
>
> J
> ______________________________________________________________
> Elecraft mailing list
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> Post: mailto:[hidden email]
>
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> Please help support this email list: http://www.qsl.net/donate.html
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>
> ______________________________________________________________
> Elecraft mailing list
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[Don Wilhelm]

Jeff,

Yes, do it both at the beginning and end.  At the end, make certain your
KX3 has fully acclimated to room temperature - I suggest at least an hour.

73,
Don W3FPR

On 6/25/2017 2:03 PM, Thorpe, Jeffrey wrote:
> One other question: at the very end of the extended procedure, it says (in bold) to kake sure I do the refcal procedure at room temperature as it says in the manual.
> Am I supposed to do the refcal again? - after the extended procedure? Or is this just a note/reminder regarding the reference calibration that I do before the extended procedure?
>
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