Which Elecraft rig? —wunder, K6WRU
On Jul 31, 2014, at 5:57 PM, Jack Berry via Elecraft elecraft@mailman.qth.net
wrote:
I notice on MARS frequencies (slightly outside ham bands) that my power
output starts out low and builds to full output over 10-20 seconds of
transmit. The symptom is
Jack,
I would suggest that you do not have sufficient audio drive. That is
the normal behavior of Elecraft products in digital modes when the audio
drive is low.
If you are following the typical 'wisdom' of using the audio level to
control the output power, forget that - the Elecraft
Don Wilhelm wrote:
This can be observed easily on an oscilloscope - first observe the
amplitude of your power setting in CW, and then switch to SSB. If
the voice peaks come up to the same amplitude as you observed for the
CW signal, you are achieving that same level of PEP (peak envelope
Nick,
No need to guess, that certainly is true - a single audio tone transmitted
without a carrier present will produce a single signal at a frequency of the
carrier + or - the tone pitch (depends on the sideband). The amplitude will
of course depend on how strong the audio signal is, but it
Don, W3FPR wrote:
No need to guess, that certainly is true - a single audio tone transmitted
without a carrier present will produce a single signal at a frequency of the
carrier + or - the tone pitch (depends on the sideband). The amplitude will
of course depend on how strong the audio signal
On Fri, 10 Feb 2006 18:52:03 -0600, Matt Osborn [EMAIL PROTECTED]
wrote:
I'm not certain I know how to understand what it is I'm measuring. In
my mind, I think much the 20 watts RF out of a CW signal is actually
carrier and of not much use. When in SSB, I want to think that I can
still put out
-Original Message-
Matt wrote:
I'm a little confused about measured transmitted power when in SSB vs CW.
As an example, I have an XV50 Transverter that is adjusted to produce 20
watts RF out when using the K2 'tune' control. This output is adjusted by
reading 20 watts on an external
It depends on the wattmeter. If the wattmeter had a PEP or peak-hold
mode, it would show the actual peak power. Many simple meters are
affected by the duty cycle of the signal, especially analog ones where
ballistics come into play.
There are a number of meters on the market that show peak
Matt,
I would surmise that you are being confused by your external wattmeter. The
XV50 LEDs will flash on voice peaks, but if your wattmeter is showing you
average power, its indication will be much less than the peak power.
This 'confusion' leads many folks to overdrive their equipment on SSB.
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