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Cutting advice for Larsen NMO

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prcguy

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Not everyone has a Dremel and scoring the circumference of the whip with the edge of a metal file or just filing a notch in it and snapping with pliers works fine. The stainless steel used in most whips is very hard and it will snap like glass when scored.
prcguy


I would suspect the spring has some additional series inductance and stray capacitance which affect the overall rod length somewhat. If this were less an art, and more a science, Larsen would simply ship a "CB" rod cut to channel 19 and there would be no market for VSWR meters.

Cutting tip:

1) Use a Dremel tool with cutoff wheel to scribe around the circumference of the whip where you want to cut.

2) Use a pair of vice grips or electricians pliers to "snap" the rod on the scribe line.

Make cutting easy so you can make many small iterations without frustration.
 

mmckenna

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Nice toy mmckenna.

It belongs to work, but I generally consider all the work tools, test equipment, vehicles, systems, etc. my "toys". What really makes it fun is that they pay me to play with them. Hopefully I'll make it to retirement before they figure out I'd probably willingly do the job for half the pay.
 
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