[Elecraft] Mini-module kits

Don Wilhelm w3fpr at earthlink.net
Sun Mar 12 19:35:37 EST 2006


Mike,

Of the mini-modules - for the purposes of building and aligning the K2, I
would recommend first the dummy load (if you do not have a good dummy load
already), second the Noise Generator for aligning the K2 filters (in
conjunction with Spectrogram), and third the XG1 or XG2 for measuring the
receiver sensitivity.

The two tone test generator would be used for evaluating the transmitted SSB
signal, but it is of little use for a CW transmitter.

All the mini-modules are useful at one time or another, so if you want a
complete set, by all means order them all.  However, you can (and likely
should) consider them as part of your test equipment arsenal - buy what you
need as you need it if your ham radio budget is limited, but if there are no
budget considerations, buy them all, they will come in handy at some time
during your K2 alignment and checkout process.

Keep in mind that these mini-modules are not required to build and align the
K2.  Elecraft has made the alignment process quite usable with only a DMM, a
dummy load, and the K2 display - extra equipment is not required, but it can
make the task a bit easier (but only if you understand how to use the test
equipment you have on your bench).

As an example, I consider my DMM, dummy loads, oscilliscope, noise
generator, and frequency counter the most valuable instruments on my
workbench for working on K2s - my signal generators are not usually
required, but are nice in some instances - the K2 has a built in frequency
counter and Elecraft has provided instructions on their website for setting
the reference oscillator accurately so the frequency readout can be trusted,
so you don't really need the frequency counter, and the RF Probe (parts
supplied with the K2 kit) can easily substitute for the oscilliscope for the
purpose of aligning and testing the K2.

What I am trying to say is that your test equipment decision should be
guided by your budget and your long term interest in homebrew experimenting,
if the K2 is your only project and your budget is limited, just a DMM and a
dummy load will do the job for you.

73,
Don W3FPR

> -----Original Message-----
>
> Would the Noise generator, two tone test oscillator or the 3 band receive
> test oscillator be a good purchase? Which would you buy first,
> second, etc?
> I am going to start building a K2 soon that is partially assembled.
>
> I am looking at using the K2 primarily for CW, but would any of the other
> options be a nice addition?
>
> Mike
> AI4NS
>
>



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