Some manufacturers made 52 ohm coaxial transmission line. The truth is that the 50 ohm standard is a compromise between minimal loss (77 ohms) and and maximum power handling (30). BTW, SO-239 connectors are not 50 ohms, but the loss at low frequencies is well.....another who gives a sh*t. 🙃 Check out the various TEM and TM modes of transmission lines sometime for a mind melt.
Interesting info Paul, I think the 52 ohm marking probably dates it to the 70s . Bloody so 259 and pl 259, how I hate them with a passion, but that's the standard, and I'd never use them above 2m. Give me an N type any day. They're waterproof for one thing and I actually find them easier to put on to a cable! Cheers Yankee 2
![Oasis - Oasis Live '25 [Official Trailer]](http://i.ytimg.com/vi/gol_JnuEtKM/mqdefault.jpg)
Well that was a fine Christmas morning treat - analysis of a nice sharp LP filter!
Happy Christmas, Nick
Nice filter indeed, but these days a bit unnecessary, modern radios are well filtered
Merry Christmas Nick. Steve
Hi Steve, best wishes to you and family
Happy crumble Nick .😊
And happy rinky dink to you!
Some manufacturers made 52 ohm coaxial transmission line. The truth is that the 50 ohm standard is a compromise between minimal loss (77 ohms) and and maximum power handling (30). BTW, SO-239 connectors are not 50 ohms, but the loss at low frequencies is well.....another who gives a sh*t. 🙃 Check out the various TEM and TM modes of transmission lines sometime for a mind melt.
Interesting info Paul, I think the 52 ohm marking probably dates it to the 70s .
Bloody so 259 and pl 259, how I hate them with a passion, but that's the standard, and I'd never use them above 2m.
Give me an N type any day. They're waterproof for one thing and I actually find them easier to put on to a cable!
Cheers Yankee 2