WebThe SWR can be calculated by taking the ratio of the impedance to 50 ohms, giving SWR = 73/50 = 1.5. (By the way, for impedances less than 50 ohms, the SWR is calculated using … WebA regular coaxial fed dipole varies from ~50 ohms to ~70 ohms or so over normal height ranges. This means 50-ohm SWR can be as high as ~1.5:1 with normal height variations With a folded dipole, impedance varies …
How High should my Dipole be? - qsl.net
WebThe increasing SWR means that some of the transmitted power is reflected back to your transmitter. There are several possible explanations for the effect: The ice is not completely dry and it partially short circuits (through some resistance) the two arms of your dipole. WebYes, height above ground can affect SWR as can the ground conductivity, so try to tune the antenna in a clear open area at an average height above ground that you think you would … how to send get request in postman
What is the relationship between SWR and receive performance?
WebIf you're seeing <2:1 from 144.1-148, that's good enough. On 70cm, if you're under 2:1 from 420-450 that should be good too but if you can't get there, try to get it under 2:1 from 430 … WebJul 28, 2024 · The dipole still behaves the same way as far as sending signals out (the pattern of the radiation doesn’t change), but the feed-point impedance will have changed from about 72 Ohms to about 100 Ohms. Here’s the results from my modeling program: Feedpoint (1) – Z: (97.900 – i 1.103) WebJul 26, 2024 · Well, one answer is to simply check your VSWR by transmitting on a higher frequency, if your VSWR goes down, you need to lengthen your radiating element for the frequency you want a lower VSWR for, conversely, if you get a lower VSWR when transmitting on a lower frequency than the frequency you wnat to use the antenna on, … how to send gifs in slack