RHF wrote:
Robert 11 wrote:
Hello:
Am using a long wire (actually, I guess I should call it a random length
wire) antenna for
receiving only. It runs around the 4 edges of my attic, and then down to
rceiver.
Do listening only up to 30 MHz. Have a JRC NRD 545
Saw an ad for the WinRadio Balun on the Grove site. [The WiNRADiO
WR-LWA-0130 Long Wire Antenna Adapter]
Would sure appreciate any opinions as to whether it's worth getting, and if
it "might" improve receotion
for me ?
Any other thoughts on this would be appreciated.
I've seen, over the years, comments that for receiving only, and using a
long-wire, a Balun to match Z would not
add anything to S/N, and isn't worth even trying.
Others have said in effect, "it can't hurt to match the Z."
A bit confused.
Anyone ever used this unit, or one like it, for receiving ?
Thanks,
Bob
1. One of the 'secrets' to making a Long Wire [Magnetic] (Balun)
"Matching Transformer" work properly is a very good ground at the
'junction' of the Antenna Element and the Coax FeedLine.
* Run/Route a separate 'heavy' Ground Wire from an 'earth' Ground Rod
up to the point in the Attic that the Matching Transformer is located.
snipped
Such a long ground wire (above) is of little use for grounding the balun
properly. When the balun is installed near the ground, a short ground
wire can be used which reduces noise on the coax shield. This is why the
following antenna design works so well.
http://www.anarc.org/naswa/badx/ante...e_antenna.html
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