Press the "Math" button and look for "FFT".
Alan N1AL
On 11/27/2015 07:12 PM, Dauer, Edward wrote:
I just purchased a DS1102E Rigol Œscope and wondered if those who use this
or similar equipment have been able to use it as a spectrum
analyzer (to draw amplitude vs frequency rather than amplitu
I just finished reading Eric Nichol’s (KL7AJ) book titled Radio Science
for the Radio Amateur, in which LDEs and other non-linear propagation
events are discussed (ch. 11). Eric considers some of the proposed
explanations but concludes that none of them really work. I heard it
myself once on
Bingo! The line from the key terminates in a 1/8" jack. The adapter from
their to the 1/4" K3 jack was somehow bad. No short in the jack or in
the key line separately. But, when connected together, there was the
short between the tip and the ring. Damnedest thing.
Thanks, Bill. Now on to the c
I just purchased a DS1102E Rigol Œscope and wondered if those who use this
or similar equipment have been able to use it as a spectrum
analyzer (to draw amplitude vs frequency rather than amplitude vs time.)
The Rigol has an external trigger channel, which if I remember correctly
from the last time
A short in the keying path - most likely external to the K3. At the key,
inside the plug? Just a shot in the dark.
Bill W2BLC K-Line
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All of a sudden and for whatever reason, when using my Vibroplex hand
key [3-pins], all I can get is an automatic "A" that keeps repeating, in
either paddle direction. Need help if I'm going to do anything in the
contest! Thanks.
...robert
--
Robert G Strickland, PhD ABPH - KE2WY
rc...@verizon.
Gary Hawkins writes:
> Using HDSDR connected to the I/Q output of the KX3 via computer in CW
> mode I observed a pulsing signal peak at 14,081,530Hz. In LSB mode I
> observe the signal peak 14,082,127Hz. In AM mode I observe the
> pulsing peak on HDSDR at 14,071,114Hz. I get the difference bet
I was playing around with an RigExperts AA-54 antenna analyzer today
using it as a signal source for the KX3. I fed the AA-54 into a Alex
Loop inside the house and had the KX3 connected to my mini-G5RV
outside. I set the AA-54 to do continuous spot measurements at approx
14.082MHz. In this m
I fellow responded helpfully by e-mail saying the KPA is good to 11.5 V.
Alas, I've lost the e-mail! Thanks to the responder!
Chris
NQ8Z
--
View this message in context:
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Sent from the Elecraft ma
Jim,
I have had the same results into the Ukraine and Europe in the mornings before
sunrise here at my Amador county QTH with my 160 Meter double extended Zepps
that have a 80 meter lobe right at them. The path did not last long and was
very selective on stations worked, area wise.
Mel, K6KBE
On Thu,11/26/2015 7:54 PM, Jack Brindle wrote:
That would be from me… Amazingly, this was on 80 meters, and was heard all over
the bay area up into central CA. At times the “echo” was louder than the direct
signal!
There are at least two recordings from that event. Very strange, and extremely
I finished the SSCW on 40 and while in QSK noticed my own echoes. I thought
that the K3's QSK or sidetone had weirded out and was confused and bummed out
about it until I listened on a 2nd receiver and figured out that it was my own
echoes, although I didn't believe what I was hearing. I've neve
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11.5 volts is where you should start seeing LO BATT on the K2 display. I
don't recall a audible tone, but it's possible.
The K2 alone is spec'd down to 9.5 VDC supply, but at reduced output as
follows:
9.0 V min for 2 watts out
9.5 V min for 5 watts out
10.0 V min for 7 watts out
10.5 V min for
Astron RS70M here and it's still going strong after 30 years. Definitely
overkill for my downsized, condo QTH, but it sits under a desk, out of the
way, and I have strong floor joists :-)
Barry w2UP
--
View this message in context:
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I'm checking my K2/KPA rig as the battery runs down. I'm getting a sporadic
"low Batt" indication on the screen and a beep every once and a while during
transmit. The supply voltage under load is still about 11.5 V.
Is this coming from the K2 or the KPA?
Is the level at which this warning occurs
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