THANKS !! That sounds much more useful than my Omni VII band
scope display - which is handy enough on its own. There are some
questions dealing with this on the Extra Exam, but my Gordon West
audio tutorial glosses over it without much explanation. I will have to
re-read the ARRL book that actually tries to explain it, and not just
tell me the answer. I don't think stuff sinks in too deep if I don't
actually understand the why of it. I don't just memorize the answer,
although it is tempting.
Given all that, I can see why some guys might miss it !
Happy Trails.
======================= Richards / K8JHR =========================
On 2/19/2011 7:57 PM, Dr. Gerald N. Johnson wrote:
> The waterfall display is very handy finding signals on a nearly dead
> band, especially VHF and microwave (where lacking frequency stability
> and precision might find a station more than a few kHz away from the
> frequency they thought they were on). On HF it can show you the pileups
> so you can investigate to chase DX if you haven't already worked the DX
> station. It can show you the frequency of splattering stations whether
> that splattering is from them or from your receiver overload. The
> waterfall display is often a part of digital programs and allows you to
> identify signals by type and activity even when there are a couple dozen
> PSK-31 signals in the SSB filter pass band.
>
> Just some uses of the waterfall display.
>
> 73, Jerry, K0CQ
>
> On 2/19/2011 4:39 PM, Richards wrote:
>> Novice Question 2765 ...
>>
>> Showing my ignorance, and not owning an Orion II ... yet...
>> (I have an Omni VII)... could someone please explain
>> how one uses the waterfall in a real world situation?
>> I have seen them in screen shots, and think I know
>> what they show... but am not sure I know what to DO
>> in an operational sense after looking at a waterfall display.
>> Do you tune to the signal image (the way I tune to a peak
>> on my band sweep scope display?) Or is there something
>> else you do to USE the information displayed on the screen ?
>>
>> I am sure this is a no-brainer for those with one, but I have
>> yet to use one, myself.
>>
>> Happy Trails. THANKS !
>>
>> ======================= Richards / K8JHR =========================
>>
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