> Yes but that sounds sort of risky in that the lowest noise
> figure of an LNA
> is not necessarily achieved at optimum match.
Agreed, and most are tuned for lowest NF and not necessarily maximum gain
nor ideal match.
> My previous comments relating to LNAs may also apply to the
> JFET mixe
At 2/9/2006 09:14 AM, you wrote:
> > Well, I'm going to go out on a limb & disagree with Jeff,
> > perhaps for the
> > first time ever.
>
>That's OK, we'll still let you hang around our tent and drink our beer at
>Dayton :-) Are you going again this year Bob?.
Not this year unfortunately; maybe '
At 09:33 AM 2/9/06, you wrote:
> > Sounds like a nice piece of test equipment to have around: a 50 dB
> > non-directional coupler.
>
>Have two, both hamfest items. One is celwave, and the other is a
>bird slug. Spec on the bird slug is -50 at 25-1000 MHz. Seems to be
>a pretty rare slug.
Kevin
> > So, if you lack test equipment and have no choice but to use high-
> level
> > signals for tuning the pass, you should still be tuning for minimum
> > reflected power.
>
> So bird inbetween TX and cans, tuning on a source like an HT?
Yes. To take it one step further, a 6 dB pad (with suitabl
> I thought consistent and optimum performance were pretty
> much the same animal?
Only under "lab conditions" :-)
Using a vague definition, I'm thinking consistent = best operation over the
long term, optimum = best short-term. I've accidentally made a 75 watt
Micor UHF PA crank out 200 watts
> Well, I'm going to go out on a limb & disagree with Jeff,
> perhaps for the
> first time ever.
That's OK, we'll still let you hang around our tent and drink our beer at
Dayton :-) Are you going again this year Bob?.
> My conclusion is that if
> whatever you're
> using to measure amplitud
At 2/8/2006 10:38, you wrote:
> > I'll take most of what you said as being sarcastic, but your point
>is taken.
>
>I guess so, just pointing out the apparent absurdity.
>
> >If so, great, you're done. If not, fix it.
>
>In the end though, the function of the pass adjustments is simply to
>transfe
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