All,

I usually don't post in this community but I wanted to share a snapshot of how Everett's amp performs compared to a tuned dipole. I've attached a screenshot of the 75 meter band last night captured from my Anan 7000.

The upper receiver is a tuned dipole, the lower receiver is my homemade mag loop running Everett's LZ1AQ amp. There's a 10-ish dB difference in signal strength at the radio (no surprise there) but the S/N ratio (which is really all that matters) is virtually indistinguishable between the two antennas.

Thank you Everett!

Mark K1LSB

if you place the loop at the same height (away from any noise source) you can even have BETTER s/n (on some signals) on the loop compared to the dipole ... why?? cause you can TURN IT (and maybe notch out some noise or a signal on same frequency but unwanted direction)

do not forget to add chokes choke chokes (half a dozen hi hi) to decouple the cabling from the antenna itself ... then when mounted a bit higher the cabling does not act as additional longwire antenna

have fun

dg9bfc sigi

ps ... not to count in that with two antennas you can do phasing and beam steering

On Fri, Feb 3, 2023 at 07:55 AM, Siegfried Jackstien wrote:

ps ... not to count in that with two antennas you can do phasing and beam steering

That's precisely why I have both receivers running, so I always have the option of pointing a null at any single source of noise. That ability also negates any need to physically rotate the loop.

Beam steering is one reason (among a number of others) my daily driver is an Anan. :)

Mark K1LSB