Dont overlook perhaps an antenna you already have up, I use an 80 meter dipole thats fed with open line, I short the open line at the shack and feed that into the receiver, I have copied the east coast many times from Hawaii, and of course all the other guys between, up to Alaska, thats on 475KHZ. Both CW and WSPR. No preamp used.

So if your wanting to just listen and get an idea of whats there, maybe check your present set up, coax fed dipole would work the same if you short the coax at the shack end.

73 Merv K9FD/KH6

"Good," "Fast," "Cheap," pick two. At least that's what I told the General officer who wanted everything. We didn't get the job, thank God.

An active E-field probe is probably the optimum, unless you have a lot of room and time. Small mag loops will work too, but often require a preamp

73,

Fred K6DGW
- Northern California Contest Club
- CU in the 50th Running of the Cal QSO Party 3-4 Oct 2015
- www.cqp.org

On 7/18/2015 11:52 AM, Phil Hystad wrote:
What is the cheapest easiest although effective RX antenna for
listening to whatever below 500 KHz with a K3 and the new K3SYNA
board?

Thanks,

73, phil, K7PEH
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