Indeed!
Most eme'rs encounter this issue some point in their operation.
I started out on 144-MHz with only 100w on CW. Then began use of
digital in 2003. But it was not until I started running above 800w
in 2011 that I began to see preamp failure. I like my preamps to not
see RF over 0
Assuming this question is for the K3, K3S, and K4, then the only
bands that preamp NF and preamp location matter is on 10m & 6m.
I run eme on 50, 144, and 1296 MHz; at 144 and above a so-called
masthead preamp (close to antenna) makes a difference in receiver
sensitivity (ability to hear the
On 4/26/2020 8:26 PM, Rich wrote:
I was talking about RX antennas, like Beverages and such, so mainly 40m
and 80m. I am happy with the K3 pre-amp I was just curious to what
others use
As always, W3LPL's response is pretty much on the money for this. The
slightly longer short answer is
On 4/26/2020 4:32 PM, Rich wrote:
Is it best to use the K3 internal pre-amp or add an external pre-amp to
the RX antenna system?
Unless you operate in a VERY quiet location, it's hard to beat the
preamp in the K3S (and that was offered as an accessory for the K3). The
preamp in the original
Precisely the intended application for a visual aid to show where the
sensitivity of the receiver sits relative to the band noise. W3LPL is
absolutely correct in asserting that relatively few know how to optimize their
settings for a given band condition.
Just sayin'.
Al W6LX
> wrote:
;Rich"
To: elecraft@mailman.qth.net
Sent: Monday, April 27, 2020 3:26:20 AM
Subject: Re: [Elecraft] RX Ant K3 Preamp vs External Preamp
I was talking about RX antennas, like Beverages and such, so mainly 40m
and 80m. I am happy with the K3 pre-amp I was just curious to what
others use
Thanks
Rich
I was talking about RX antennas, like Beverages and such, so mainly 40m
and 80m. I am happy with the K3 pre-amp I was just curious to what
others use
Thanks
Rich
On 4/26/2020 20:12 PM, Bob McGraw K4TAX wrote:
The internal preamp in my K3S does an excellent job on 6 meters. If
I decided
.net
Sent: Monday, April 27, 2020 12:12:56 AM
Subject: Re: [Elecraft] RX Ant K3 Preamp vs External Preamp
The internal preamp in my K3S does an excellent job on 6 meters. If I
decided to use an external preamp, it would be located at the antenna
feed point with suitable switching and protection.
The internal preamp in my K3S does an excellent job on 6 meters. If I
decided to use an external preamp, it would be located at the antenna
feed point with suitable switching and protection.
I suppose the question, what bands do you perceive you need a preamp?
And what is your no signal
I am interested in finding out from the experts
Is it best to use the K3 internal pre-amp or add an external pre-amp to
the RX antenna system?
Thanks
Rich
K3RWN
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