[Elecraft] low-noise 40m RX antenna

[kevinrock@earthlink.net]

I know how to turn the AGC on and off but how does one adjust it to FAST?
   Kevin.


9/17/2002 8:22:48 AM, "Gene A. Williamson" <genewill@ordata.com> wrote:

>	I have found a loop to be a good low-noise receiving antenna. Up about
>15ft and made of #20 magnet wire, it was nearly invisible. I fed it with
>ladder line to use as an all-band transmitting antenna. I would think coax
>feed with perhaps a QRP transmatch (if needed) would work well for RX only.
>
>	Before you start climbing trees, try this: leaving the AGC on FAST, lower
>your RF gain until the S-meter needle rests at the same level as your
>noise. (Easiest done by going past the noise, then cranking the knob back
>up a hair.) Your noise will be gone, and you'll still have AGC action on
>signals louder than that level. Signals below that level will effectively
>sound as though you've set AGC OFF. My S-meter has rested at S5 for years
>now, and I'll bet I've made hundreds of QSOs where the signal didn't move
>the needle one whit.
>
>73 Gene N7YW