[Elecraft] Receive antennas

[Stewart Baker]

Drew,
Receive only antennas can really extract wanted signals out of a 
mess of local electrical noise.

To be effective they need to have minimal coupling to the transmit 
antenna, otherwise all the trash collected on the main antenna 
appears on the receive antenna signal. This means a reasonable 
distance between the two antennas which  also helps to prevent 
damage to the receiver front end, but with high RF power care is 
needed.

A lot of receive antennas have low output so use a 20dB or so 
pre-amp. It is possible that this could be killed with RF, long 
before the rig suffers. Y.M.M.V.

73
Stewart G3RXQ

On Sat, 02 Feb 2008 10:38:36 -0500, drewko1 at verizon.net wrote:
> I'm a bit confused about using a receive-only antenna.  Comments
> suggest that they could be destructive. Is it safe to use one on 
the
> K2 (the k160rx module) and/or k3?
>
> 73,
> Drew
> AF2Z
>
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