Gdetrailer wrote:
When our runs exceeded 200 ft we switched to individual RG-11 along with individual motor/polarizer wires.. Talk about stiff, RG-11 is about 1/2\" in diameter..
Pick you poison..
You can't have your cake and eat it too..
Gdetrailer wrote:
When our runs exceeded 200 ft we switched to individual RG-11 along with individual motor/polarizer wires.. Talk about stiff, RG-11 is about 1/2\" in diameter..
Pick you poison..
You can't have your cake and eat it too..
Tom_M wrote:Satellite L-Band runs from 950 - 1450MHz, so if you take the 750MHz loss specs and double it, that will give you worst case L-Band losses providing the coax is linear. And if it's not, trash it anyway.","body@stripHtml({\"removeProcessingText\":false,\"removeSpoilerMarkup\":false,\"removeTocMarkup\":false,\"truncateLength\":200})@stringLength":"203","kudosSumWeight":0,"repliesCount":0,"postTime":"2015-04-05T13:07:36.000-07:00","lastPublishTime":"2015-04-05T13:07:36.000-07:00","metrics":{"__typename":"MessageMetrics","views":483},"visibilityScope":"PUBLIC","placeholder":false,"originalMessageForPlaceholder":null,"isEscalated":null,"solution":false,"entityType":"FORUM_REPLY","eventPath":"category:RVTalk/community:feyqc97479board:RVMustHaves/message:1691138/message:1691153","replies":{"__typename":"MessageConnection","pageInfo":{"__typename":"PageInfo","hasNextPage":false,"endCursor":null,"hasPreviousPage":false,"startCursor":null},"edges":[]},"attachments":{"__typename":"AttachmentConnection","edges":[],"pageInfo":{"__typename":"PageInfo","hasNextPage":false,"endCursor":null,"hasPreviousPage":false,"startCursor":null}},"readOnly":false,"editFrozen":false,"body@stringLength":"705","rawBody":"
One popular brand of coax is CommScope. Here are specs from their web site:
750 mhz
RG-59 6.97db/100ft
RG-6 5.65db/100ft
1000 mhz
RG-59 8.12db/100ft
RG-6 6.55db/100ft
The high end of broadcast TV is channel 51 which is 700 mhz. I don't know what satellite uses between dish and receiver.
The fact that much of the coax uses copper clad steel is not much of a factor.
Tom_M wrote:Satellite L-Band runs from 950 - 1450MHz, so if you take the 750MHz loss specs and double it, that will give you worst case L-Band losses providing the coax is linear. And if it's not, trash it anyway.","images":{"__typename":"AssociatedImageConnection","edges":[],"totalCount":0,"pageInfo":{"__typename":"PageInfo","hasNextPage":false,"endCursor":null,"hasPreviousPage":false,"startCursor":null}},"timeToRead":1,"currentRevision":{"__ref":"Revision:revision:1691153_1"},"latestVersion":null,"messagePolicies":{"__typename":"MessagePolicies","canModerateSpamMessage":{"__typename":"PolicyResult","failureReason":{"__typename":"FailureReason","message":"error.lithium.policies.feature.moderation_spam.action.moderate_entity.allowed.accessDenied","key":"error.lithium.policies.feature.moderation_spam.action.moderate_entity.allowed.accessDenied","args":[]}}},"customFields":[]},"User:user:110548":{"__typename":"User","id":"user:110548","uid":110548,"login":"Gdetrailer","biography":null,"registrationData":{"__typename":"RegistrationData","status":null,"registrationTime":"2007-01-05T15:32:39.000-08:00"},"deleted":false,"email":"","avatar":{"__typename":"UserAvatar","url":"https://community.goodsam.com/t5/s/feyqc97479/m_assets/avatars/default/avatar-9.svg?time=1737155183000"},"rank":{"__ref":"Rank:rank:40"},"entityType":"USER","eventPath":"community:feyqc97479/user:110548"},"ModerationData:moderation_data:1691152":{"__typename":"ModerationData","id":"moderation_data:1691152","status":"APPROVED","rejectReason":null,"isReportedAbuse":false,"rejectUser":null,"rejectTime":null,"rejectActorType":null},"ForumReplyMessage:message:1691152":{"__typename":"ForumReplyMessage","author":{"__ref":"User:user:110548"},"id":"message:1691152","revisionNum":1,"uid":1691152,"depth":1,"hasGivenKudo":false,"subscribed":false,"board":{"__ref":"Forum:board:RVMustHaves"},"parent":{"__ref":"ForumTopicMessage:message:1691138"},"conversation":{"__ref":"Conversation:conversation:1691138"},"subject":"Re: Flexible Coax","moderationData":{"__ref":"ModerationData:moderation_data:1691152"},"body":"
One popular brand of coax is CommScope. Here are specs from their web site:
750 mhz
RG-59 6.97db/100ft
RG-6 5.65db/100ft
1000 mhz
RG-59 8.12db/100ft
RG-6 6.55db/100ft
The high end of broadcast TV is channel 51 which is 700 mhz. I don't know what satellite uses between dish and receiver.
The fact that much of the coax uses copper clad steel is not much of a factor.
wa8yxm wrote:
You said \"Grades\" do not matter it is insulator (Which is, of course, one of the factors that constitutes grades) and then said the cheap stuff uses the lesser (higher loss) insulator.
Could not agree more. But do re-think what you said.
High Grade cable uses multiple shields,,, It uses the high grad insulator and has lower loss... Oh, by the way, My defination of HIGH GRADE is Low Loss.
wa8yxm wrote:
You said \"Grades\" do not matter it is insulator (Which is, of course, one of the factors that constitutes grades) and then said the cheap stuff uses the lesser (higher loss) insulator.
Could not agree more. But do re-think what you said.
High Grade cable uses multiple shields,,, It uses the high grad insulator and has lower loss... Oh, by the way, My defination of HIGH GRADE is Low Loss.
wa8yxm wrote:
Both RG-59 and RG-6 come in assorted grades and quality
The difference can be far, far, greater than the difference above.
I do not have the chart on this computer but will try to find it...
http://www.rfcafe.com/references/electrical/coax-chart.htm
That is not the chart I was looking for but it is a start.
wa8yxm wrote:
Both RG-59 and RG-6 come in assorted grades and quality
The difference can be far, far, greater than the difference above.
I do not have the chart on this computer but will try to find it...
http://www.rfcafe.com/references/electrical/coax-chart.htm
That is not the chart I was looking for but it is a start.
Tom_M wrote:Duh... Even though I'm in the TV business I never think about video coax for RF even though it's swept flat to 3GHz. Camera coax isn't cheap but probably better than typical RF RG6. Belden, Gepco, Carol, and Clarke all have knockoffs of the Canare Superflex, but the Canare is the nicest IMO. There are F connectors that fit but probably not the standard ones. Might be easier to go BNC and use adapters","body@stripHtml({\"removeProcessingText\":false,\"removeSpoilerMarkup\":false,\"removeTocMarkup\":false,\"truncateLength\":200})@stringLength":"203","kudosSumWeight":0,"repliesCount":0,"postTime":"2015-04-04T15:49:32.000-07:00","lastPublishTime":"2015-04-04T15:49:32.000-07:00","metrics":{"__typename":"MessageMetrics","views":483},"visibilityScope":"PUBLIC","placeholder":false,"originalMessageForPlaceholder":null,"isEscalated":null,"solution":false,"entityType":"FORUM_REPLY","eventPath":"category:RVTalk/community:feyqc97479board:RVMustHaves/message:1691138/message:1691148","replies":{"__typename":"MessageConnection","pageInfo":{"__typename":"PageInfo","hasNextPage":false,"endCursor":null,"hasPreviousPage":false,"startCursor":null},"edges":[]},"readOnly":false,"editFrozen":false,"body@stringLength":"867","rawBody":"
You could try using RG-59 coax. It's thinner than RG-6 and would be easier to manage. The down-side is there's more signal loss. A friend of mine is using 100 feet for his Dish satellite.
If you are dead set on RG-6, you could check a brand called Canare. They make some very flexible cable. I don't know if they make a direct replacement for RG-6. If they do, I don't know if standard F connectors would work.
Tom_M wrote:Duh... Even though I'm in the TV business I never think about video coax for RF even though it's swept flat to 3GHz. Camera coax isn't cheap but probably better than typical RF RG6. Belden, Gepco, Carol, and Clarke all have knockoffs of the Canare Superflex, but the Canare is the nicest IMO. There are F connectors that fit but probably not the standard ones. Might be easier to go BNC and use adapters","images":{"__typename":"AssociatedImageConnection","edges":[],"totalCount":0,"pageInfo":{"__typename":"PageInfo","hasNextPage":false,"endCursor":null,"hasPreviousPage":false,"startCursor":null}},"attachments":{"__typename":"AttachmentConnection","pageInfo":{"__typename":"PageInfo","hasNextPage":false,"endCursor":null,"hasPreviousPage":false,"startCursor":null},"edges":[]},"timeToRead":1,"currentRevision":{"__ref":"Revision:revision:1691148_1"},"latestVersion":null,"messagePolicies":{"__typename":"MessagePolicies","canModerateSpamMessage":{"__typename":"PolicyResult","failureReason":{"__typename":"FailureReason","message":"error.lithium.policies.feature.moderation_spam.action.moderate_entity.allowed.accessDenied","key":"error.lithium.policies.feature.moderation_spam.action.moderate_entity.allowed.accessDenied","args":[]}}},"customFields":[]},"ModerationData:moderation_data:1691147":{"__typename":"ModerationData","id":"moderation_data:1691147","status":"APPROVED","rejectReason":null,"isReportedAbuse":false,"rejectUser":null,"rejectTime":null,"rejectActorType":null},"ForumReplyMessage:message:1691147":{"__typename":"ForumReplyMessage","author":{"__ref":"User:user:2884"},"id":"message:1691147","revisionNum":1,"uid":1691147,"depth":1,"hasGivenKudo":false,"subscribed":false,"board":{"__ref":"Forum:board:RVMustHaves"},"parent":{"__ref":"ForumTopicMessage:message:1691138"},"conversation":{"__ref":"Conversation:conversation:1691138"},"subject":"Re: Flexible Coax","moderationData":{"__ref":"ModerationData:moderation_data:1691147"},"body":"Both RG-59 and RG-6 come in assorted grades and quality
You could try using RG-59 coax. It's thinner than RG-6 and would be easier to manage. The down-side is there's more signal loss. A friend of mine is using 100 feet for his Dish satellite.
If you are dead set on RG-6, you could check a brand called Canare. They make some very flexible cable. I don't know if they make a direct replacement for RG-6. If they do, I don't know if standard F connectors would work.
Tom_M wrote:
You could try using RG-59 coax. It's thinner than RG-6 and would be easier to manage. The down-side is there's more signal loss. A friend of mine is using 100 feet for his Dish satellite.
If you are dead set on RG-6, you could check a brand called Canare. They make some very flexible cable. I don't know if they make a direct replacement for RG-6. If they do, I don't know if standard F connectors would work.
Tom_M wrote:
You could try using RG-59 coax. It's thinner than RG-6 and would be easier to manage. The down-side is there's more signal loss. A friend of mine is using 100 feet for his Dish satellite.
If you are dead set on RG-6, you could check a brand called Canare. They make some very flexible cable. I don't know if they make a direct replacement for RG-6. If they do, I don't know if standard F connectors would work.
