I can not see any reference to noise figure in the brochure. Just MDS and FM
sensitivity with no bandwidth.
When I get mine I will measure the noise figure on a test set. It is likely
to be under 2dB and I will use a low ENR head!
I suspect like the XV144, the K144XV will need some gain
IMHO an external sequencer is still the best way to have a foolproof
system. Running QRO with a mast mounted lna isn't a good idea if you
don't have one. 20 ms is not enough for sure, as most of the QRO coax
relays have a switching time of that amount or even more
My sequence timing is
In a recent message, AD6XY m.j.wil...@rl.ac.uk wrote ...
I can not see any reference to noise figure in the brochure. Just MDS and FM
sensitivity with no bandwidth.
The manual gives this as 1dB nominal.
See
http://www.elecraft.com/manual/K144XV%20Manual%20A3.pdf
73
--
David G4DMP/G3KEP
Leeds,
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] [K3] Elecraft[K-3] K144XV
IMHO an external sequencer is still the best way to have a foolproof
system. Running QRO with a mast mounted lna isn't a good idea if you
don't have one. 20 ms is not enough for sure, as most of the QRO coax
relays have
David,
Wayne said: It's actually more like -144 dBm (500-Hz bandwidth). I assume
that this refers to a K144XV installed in a K3.
This equates to a noise figure of 3db.
To achieve a lower noise figure, the gain used in the K144XV would have to
be greater, which would further reduce the
: [Elecraft] [K3] Elecraft[K-3] K144XV
IMHO an external sequencer is still the best way to have a foolproof
system. Running QRO with a mast mounted lna isn't a good idea if you
don't have one. 20 ms is not enough for sure, as most of the QRO coax
relays have a switching time of that amount or even
I know this - so does everyone. I have actually read the manual. However,
there is only one TX inhibit and it is shared with the K3 on signal, which I
happen to be using. Even if I was not using it the inhibit might easily be
set to the default K3 ON and be ignored. Perhaps one of the DIGOUT
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