[Elecraft] Receive antennas

[TWC]

Stewart Baker skrev:
> 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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>
>
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>   
Hi all,

I am looking for a receive antenna for 80 meter because of
high levels of white nise here in Stockholm City.
Any suggestions there to find good building instructions on
the Internet should be appreciated.

Best 73's,
Rolf   -   K2 #4979
SMØYQC