Home |
Search |
Today's Posts |
|
#1
![]() |
|||
|
|||
![]()
It was probably GTO-15. I would hope that who ever went to the trouble
of adding the standoffs would know the difference. GTO is hard to tell from RG59 from a distance. Neon sign suppliers even have it in decorator colors. Larry W4CSC wrote: If the backstay turnbuckle were "hot" (energized with RF) this would be prudent because there can be considerable voltages from the tuner on certain frequencies, such as near when the backstay is a 1/2 wavelength antenna. The question arises, why does the coax go to the backstay AT ALL? It goes to the TUNER who's tuned RF output goes to the backstay. I has no business going to the backstay. The wire from the tuner's high voltage post to the backstay shouldn't be coax, either. Coax has LOTS of capacitance to the shield and if some idiot grounds it it will decouple the RF off to ground at the higher impedances.... A heavy wire should hook the tuner to the backstay as it's just part of the antenna. On Wed, 05 Nov 2003 23:32:57 GMT, "Gordon Wedman" wrote: The other day I was wandering around one of our marinas trying to steal ideas from other boats and I came across an aluminum pilot-house sloop that may have come over from Europe. I noticed that the SSB coax was held away from the backstay turnbuckle and wire by ~1 inch plastic spacers. I've never seen this before and the previous owner didn't do it on my boat. I've been thinking of upgrading the ancient SSB system on my boat and was wondering if these standoffs were something recommended. Anyone know about these? Thanks Gord Larry W4CSC "Very funny, Scotty! Now, BEAM ME MY CLOTHES! KIRK OUT!" -- Glenn Ashmore I'm building a 45' cutter in strip/composite. Watch my progress (or lack there of) at: http://www.rutuonline.com Shameless Commercial Division: http://www.spade-anchor-us.com |
#2
![]() |
|||
|
|||
![]()
On Thu, 06 Nov 2003 09:29:20 -0500, Glenn Ashmore
wrote: It was probably GTO-15. I would hope that who ever went to the trouble of adding the standoffs would know the difference. GTO is hard to tell from RG59 from a distance. Neon sign suppliers even have it in decorator colors. What the hell is GTO-15, some West Marine $20/ft trick? This isn't a neon sign with 40KV of 60 Hz on it....IT'S RF! All the insulation in the world isn't going stop the RF from leaking out, like it's 'spozed ta. Lionheart's tuner is hooked to its backstay with a stainless strap in a gentle curve held on with a stainless hose clamp. Now that we got the damned steel cable holdin' the boom up replaced with something that DOESN'T suck off the HF signal into the mainmast, it works much better......well, at least until the sun exploded wiping out the ionosphere.... 73 DE W4CSC NNNN AR |
#3
![]() |
|||
|
|||
![]()
GTO-15 is 15KV insulated wire and fairly standard for tuner to backstay
leads. More for safety than efficiency. The whole idea of elevated lower insulator on the backstay is to prevent some dumb crew member from grabbing a hot lead and getting an RF burn. The GTO limits that possibility. The stainless strap approaching at an angle is probably more efficient and neater looking but gives no protection. West Moron dropped it from the Catalog this year but used to sell it for $1/ft. It is standard material in neon shops for $.50/ft and from HVAC dealers as spark igniter wire for $.25/ft. Larry W4CSC wrote: On Thu, 06 Nov 2003 09:29:20 -0500, Glenn Ashmore wrote: It was probably GTO-15. I would hope that who ever went to the trouble of adding the standoffs would know the difference. GTO is hard to tell from RG59 from a distance. Neon sign suppliers even have it in decorator colors. What the hell is GTO-15, some West Marine $20/ft trick? This isn't a neon sign with 40KV of 60 Hz on it....IT'S RF! All the insulation in the world isn't going stop the RF from leaking out, like it's 'spozed ta. Lionheart's tuner is hooked to its backstay with a stainless strap in a gentle curve held on with a stainless hose clamp. Now that we got the damned steel cable holdin' the boom up replaced with something that DOESN'T suck off the HF signal into the mainmast, it works much better......well, at least until the sun exploded wiping out the ionosphere.... 73 DE W4CSC NNNN AR -- Glenn Ashmore I'm building a 45' cutter in strip/composite. Watch my progress (or lack there of) at: http://www.rutuonline.com Shameless Commercial Division: http://www.spade-anchor-us.com |
#4
![]() |
|||
|
|||
![]() |
#5
![]() |
|||
|
|||
![]()
I guess you must have forgotten about your numerous posts
a long time ago (1 year +) where you expoused the use of GTO-15 when feeding your entire rig. Must have been a senior moment. Doug, k3qt s/v Callista "Larry W4CSC" wrote in message ... On Thu, 06 Nov 2003 09:29:20 -0500, Glenn Ashmore wrote: It was probably GTO-15. I would hope that who ever went to the trouble of adding the standoffs would know the difference. GTO is hard to tell from RG59 from a distance. Neon sign suppliers even have it in decorator colors. What the hell is GTO-15, some West Marine $20/ft trick? This isn't a neon sign with 40KV of 60 Hz on it....IT'S RF! All the insulation in the world isn't going stop the RF from leaking out, like it's 'spozed ta. Lionheart's tuner is hooked to its backstay with a stainless strap in a gentle curve held on with a stainless hose clamp. Now that we got the damned steel cable holdin' the boom up replaced with something that DOESN'T suck off the HF signal into the mainmast, it works much better......well, at least until the sun exploded wiping out the ionosphere.... 73 DE W4CSC NNNN AR |
#6
![]() |
|||
|
|||
![]()
Doug,
Holding those of us on the senior circuit to what we said in the past is simply not fare. Regards, Ron (I think?) |
#7
![]() |
|||
|
|||
![]()
Wasn't me. I never heard of GTO-15 before.....??????
On Thu, 6 Nov 2003 23:24:08 -0500, "Doug Dotson" wrote: I guess you must have forgotten about your numerous posts a long time ago (1 year +) where you expoused the use of GTO-15 when feeding your entire rig. Must have been a senior moment. Doug, k3qt s/v Callista "Larry W4CSC" wrote in message ... On Thu, 06 Nov 2003 09:29:20 -0500, Glenn Ashmore wrote: It was probably GTO-15. I would hope that who ever went to the trouble of adding the standoffs would know the difference. GTO is hard to tell from RG59 from a distance. Neon sign suppliers even have it in decorator colors. What the hell is GTO-15, some West Marine $20/ft trick? This isn't a neon sign with 40KV of 60 Hz on it....IT'S RF! All the insulation in the world isn't going stop the RF from leaking out, like it's 'spozed ta. Lionheart's tuner is hooked to its backstay with a stainless strap in a gentle curve held on with a stainless hose clamp. Now that we got the damned steel cable holdin' the boom up replaced with something that DOESN'T suck off the HF signal into the mainmast, it works much better......well, at least until the sun exploded wiping out the ionosphere.... 73 DE W4CSC NNNN AR Larry W4CSC "Very funny, Scotty! Now, BEAM ME MY CLOTHES! KIRK OUT!" |
#8
![]() |
|||
|
|||
![]()
Larry W4CSC wrote:
Wasn't me. I never heard of GTO-15 before.....?????? On Thu, 6 Nov 2003 23:24:08 -0500, "Doug Dotson" wrote: I guess you must have forgotten about your numerous posts a long time ago (1 year +) where you expoused the use of GTO-15 when feeding your entire rig. Must have been a senior moment. Doug, k3qt s/v Callista "Larry W4CSC" wrote in message ... On Thu, 06 Nov 2003 09:29:20 -0500, Glenn Ashmore wrote: It was probably GTO-15. I would hope that who ever went to the trouble of adding the standoffs would know the difference. GTO is hard to tell from RG59 from a distance. Neon sign suppliers even have it in decorator colors. What the hell is GTO-15, some West Marine $20/ft trick? This isn't a neon sign with 40KV of 60 Hz on it....IT'S RF! All the insulation in the world isn't going stop the RF from leaking out, like it's 'spozed ta. Lionheart's tuner is hooked to its backstay with a stainless strap in a gentle curve held on with a stainless hose clamp. Now that we got the damned steel cable holdin' the boom up replaced with something that DOESN'T suck off the HF signal into the mainmast, it works much better......well, at least until the sun exploded wiping out the ionosphere.... 73 DE W4CSC NNNN AR Larry W4CSC "Very funny, Scotty! Now, BEAM ME MY CLOTHES! KIRK OUT!" You'll find a lot of GTO-15 at neon sign shops. It's heavy voltage cable. -- Email sent to is never read. |
#9
![]() |
|||
|
|||
![]() "Larry W4CSC" wrote in message ... Wasn't me. I never heard of GTO-15 before.....?????? Must have been a pre-senior moment. ta. Lionheart's tuner is hooked to its backstay with a stainless strap in a gentle curve held on with a stainless hose clamp. I thought you were feeding your entire rig as an antenna? Now that we got the damned steel cable holdin' the boom ... We sailors call that a topping lift ![]() 73 DE W4CSC NNNN AR Larry W4CSC "Very funny, Scotty! Now, BEAM ME MY CLOTHES! KIRK OUT!" |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|