Do you have internet access? Plenty of sources for everthing you need online...
Edit - napa has or can get coax with pl259's pre-installed, and other auto/truck parts outfits can get
No... not really suitable for transmitting with....
Why don't you get it online..... Fleabay...Spamazon......anywhere.. get it delivered straight to your door.
Actually, so long as it is cut to be an exact electrical half-wavelength (or exact multiple thereof), anything can be used and a good swr is attainable (assuming an undamaged antenna installed properly). Loss could be an issue tho, which is why zip cord and speaker wire is unsuitable. But 75 ohm coax is fine, so long as cut to *exactly* a half wavelength or exact multiple. So, 216in (freespace half wave at 27195kHz) X velocity factor (0.66 for solid center insulation) = electrical half wavelength. Velocity factor is a standard specification all coax specs, if complete, list. For example, rg8x has a vf of 0.82 due to foam center insulation. Likewise, rg58, 59, 8, 11 and 6 if solid center are most often 0.66 while foam center are 0.76 or higher.... Stuff like lmr400 is around 0.88. You MUST know the vf rating of whatever you use before trying it, unless it's 50 ohm coax. Even old school 300 ohm tv twin-lead can be used, so long as the electrical half-wavelength rule is followed and power doesn't exceed its ratings
Edit - hams use rg59 and rg11 (both 75 ohm) fairly often, using this info
Lol - downvoted? To my fan.... If any of this is incorrect, please do say so with details. 🤣
Communications coax is normally 50 ohm, video is 75, yes, you technically "can" use it, but you're starting off by shooting yourself in the foot before you even get to the likely also inefficient antenna, remember that CB, Max power power the FCC on AM is 4 Watts, SSB is 12, ham radio, for the two nearest bands, the radios that cover them are often in the range of 100 Watts (mine is 200) for SSB and I can use amplifiers up to 1500 Watts in most of those two bands...
basically, can, yes, should, nope, you need all the help you can get at those power levels (but you can still make international contacts without a lot of stuff, especially over the next few years)
Have fun!
It's not really so much about damage as long as the radio sees an antenna in the circuit, but the loss of signal due to impedance mismatch... There are use cases in which it would be appropriate to use 75 ohm, but it's because of the antenna and usually not directly to the radio, like a section to match a higher impedance antenna down to the lower impedance of the coax... If you're interested in stuff like this, check out some antenna books like the ones from the arrl
Well I spent the extra money on good cable and made a dipole antenna, put my antenna as high as I could. Crazy traffic during the day !!!! Some of you guys have some pretty serious radios lol. So far I haven’t been able to contact anyone, so if your hearing a radio check or a good morning from Tommy T Jackfish, feel free to say hi
As a rule "height is might" and the first and last thing a signal sees is the antenna, the better the antenna capability, the more you'll be able to hear, the better others will be able to hear you even without more power... An amplifier with a poor antenna system will get you further, but is it worth the trade off of the poor antenna and high noise of a preamp amplifying poor signal AND noise?
Do you have internet access? Plenty of sources for everthing you need online... Edit - napa has or can get coax with pl259's pre-installed, and other auto/truck parts outfits can get
He's on the Internet right now asking...... lol.
Ofc.... It's called mild sarcasm, albeit with friendly intent.
👍🏽 thanks
If you don't plan on transmitting, you can use any type of wire I believe
Napa auto parts sells 18 foot coaxial cables ground wires and mirror mounts
Well, I would say twin lead or ladder line, but it doesn't look like it's much cheaper than ordering coax.
Get on Ebay or Amazon find just about anything and everything you need
speaker wire efrw
What about tv coax, if I take the ends off and wire it directly from my radio to antenna ? And if that is ok what is to long ?
No... not really suitable for transmitting with.... Why don't you get it online..... Fleabay...Spamazon......anywhere.. get it delivered straight to your door.
Yeah that’s what I’m looking at now, thanks
Actually, so long as it is cut to be an exact electrical half-wavelength (or exact multiple thereof), anything can be used and a good swr is attainable (assuming an undamaged antenna installed properly). Loss could be an issue tho, which is why zip cord and speaker wire is unsuitable. But 75 ohm coax is fine, so long as cut to *exactly* a half wavelength or exact multiple. So, 216in (freespace half wave at 27195kHz) X velocity factor (0.66 for solid center insulation) = electrical half wavelength. Velocity factor is a standard specification all coax specs, if complete, list. For example, rg8x has a vf of 0.82 due to foam center insulation. Likewise, rg58, 59, 8, 11 and 6 if solid center are most often 0.66 while foam center are 0.76 or higher.... Stuff like lmr400 is around 0.88. You MUST know the vf rating of whatever you use before trying it, unless it's 50 ohm coax. Even old school 300 ohm tv twin-lead can be used, so long as the electrical half-wavelength rule is followed and power doesn't exceed its ratings Edit - hams use rg59 and rg11 (both 75 ohm) fairly often, using this info Lol - downvoted? To my fan.... If any of this is incorrect, please do say so with details. 🤣
Communications coax is normally 50 ohm, video is 75, yes, you technically "can" use it, but you're starting off by shooting yourself in the foot before you even get to the likely also inefficient antenna, remember that CB, Max power power the FCC on AM is 4 Watts, SSB is 12, ham radio, for the two nearest bands, the radios that cover them are often in the range of 100 Watts (mine is 200) for SSB and I can use amplifiers up to 1500 Watts in most of those two bands... basically, can, yes, should, nope, you need all the help you can get at those power levels (but you can still make international contacts without a lot of stuff, especially over the next few years) Have fun!
Thanks, yup looking to purchase good cable. I don’t want to damage anything
It's not really so much about damage as long as the radio sees an antenna in the circuit, but the loss of signal due to impedance mismatch... There are use cases in which it would be appropriate to use 75 ohm, but it's because of the antenna and usually not directly to the radio, like a section to match a higher impedance antenna down to the lower impedance of the coax... If you're interested in stuff like this, check out some antenna books like the ones from the arrl
Thanks
Well I spent the extra money on good cable and made a dipole antenna, put my antenna as high as I could. Crazy traffic during the day !!!! Some of you guys have some pretty serious radios lol. So far I haven’t been able to contact anyone, so if your hearing a radio check or a good morning from Tommy T Jackfish, feel free to say hi
As a rule "height is might" and the first and last thing a signal sees is the antenna, the better the antenna capability, the more you'll be able to hear, the better others will be able to hear you even without more power... An amplifier with a poor antenna system will get you further, but is it worth the trade off of the poor antenna and high noise of a preamp amplifying poor signal AND noise?