nullagent (@nullagent@partyon.xyz)
Over the weekend @meph@treehouse.systems added some mind blowing new features to lorapipe. - APRS over LoRa - Ethernet over LoRa https://social.treehouse.PartyOn
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How does one determine the spacing between a gamma match and the main antenna conductor? As in, where they're parallel between the two feed point terminals. :/ #AmateurRadio #HamRadio
Just landed on my first C4FM repeater net. It's pretty cool! It shows both the call sign and distance from the repeater of the transmitting stations. :O #AmateurRadio #HamRadio
in reply to Neil E. Hodges
In 2013 Yaesu introduced “System Fusion,” new technology utilizing C4FM 4-level FSK technology for transmitting digital voice data. The System Fusion communication protocol enables devices to analyze an incoming signal and automatically determine if it is using C4FM or conventional FM mode. System Fusion also enables data transfer at full rate with speeds reaching up to 9,600 bits per second.
in reply to Neil E. Hodges
Congratulations, you have built an antenna 😃👍
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Andrew VK3ARR
in reply to Neil E. Hodges • • •Without doing any modelling, I would say it's probably not critical and it's likely to be a small fraction of a wavelength at the relevant frequency. I suspect it would just adjust where the gamma match attaches to the driven element, similar to, eg a J Pole feed point.
Of course, the correct way to answer this is to post a picture to QRZ.com and wait for 40 different "you're doing it wrong" posts that reference ARRL handbooks from the '40s
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