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How To Get Started With a HIFER


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Posted by Bill, K4JYS on October 08, 2017 at 16:33:53.

Tnx Ed for the encouragement. I realize that the Hifer beacons are at the whim
of propagation (which has been dismal of late) and of course the low power
involved. My amateur radio activities were a bit subdued during the summer
due mostly to the poor band condx....same goes for the beacon chasing.

I hesitate to ask the following questions since this subject has probably been
discussed many times on this list....however, here goes anyway and I apologize
for the length:

Should one want to put on a Hifer beacon (not saying I'm gonna but...) I was
wondering just how to go about it. I would be interested in the CW mode...no
digital. I have read the FCC regs and pretty well understand the main points.
As for a transmitter, I guess there are numerous ways to go....homebrew from scratch, modify an existing QRP rig as you did, buy something ready to go
(haven't seen any of those). From my standpoint, I am not much on solid state,
which I would guess would be the best way to go. I do prefer tubes and do some building of one tube osc. rigs. I have seen mention of some type of IC that has a
QRP xmtr built in with inputs for voltages and keying. I think they can be programed by the vendor when bought. I guess about the only thing to add would be a keyer
and antenna coupling....any comments on any of these methods.

I see that the FCC spec holds the FS to 15,848 microvols at 30 mtrs for freqs of
13.553 to 13.567 mhz. I suppose this is where all Hifers operate since the most
power is allowed in this part of the band. Is there a practical way to measure for
this FS? How does this equate to xmtr input/output?

Is there any coordination of beacon freqs or just fire up where ya want to
or depending on what xtal one might have available?

I will stop with this: how complex were the mods you did to the QRP xmtr?

Thanks for putting up with this. I appreciate any comments.

Thanks/73 de Bill K4JYS

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