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April 27th 20, 09:38 PM
posted to rec.radio.amateur.moderated,rec.radio.amateur.antenna
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[VE2DPE] The Double Doublet Antenna for 80 and 40 Meters
On 27/04/2020 07:22, VE2DPE via rec.radio.amateur.moderated Admin wrote:
VE2DPE's Ham Radio Blog /////////////////////////////////////////// The Double Doublet Antenna for 80 and 40 Meters Posted: 26 Apr 2020 10:59 AM PDT https://www.hamradiosecrets.com/doublet-antenna.html A double doublet antenna enables 80 meters and 40 meters to coexist on the same antenna system without interfering with each other. Here's how. A single 80 m half wave doublet can happily work on 3.5 to 30 MHz with an antenna matching unit or with specific feeder lengths. A 4:1 balun is only required when feeder length is short for low frequency bands For this have a look at Cecil Moore's web site www.w5dxp.com Frank EI7KS |
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