Re: First Base Station Antenna
Anthony Luscre <k8zt73@...>
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But you are not calculating in the gain of the antenna or antenna height.
On 2M/440 on Diamond v200 that would be +6.2dB/+8.4dB.
Even if the power is a complete wash and equal to the rubber duck the height above ground will make a tremendous difference on VHF/UHF as well as being outside the house.
On Tue, Apr 26, 2022 at 6:06 PM Doug - AB7DG - Tacoma WA <schafer@...> wrote:
Well, Mark, I wonder about that. According to https://kv5r.com/ham-radio/coax-loss-calculator/ , the loss in 100' of RG-8X coax at the upper end of the 70cm band (450MHz) is 8.281 dB if the SWR is 1.0:1, and increases to 8.455 dB if the SWR is 1.5:1. So with his 5 W HT connected to that coax, his output power is 0.743 W if SWR is 1.0:1, and only 0.714 W if SWR is 1.5:1. He loses 85 - 86% of his HT's power.
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