Karl gave me a hand putting together a new cable to feed the projector. The project went really well, we both needed long VGA cables and did his a few weeks ago. If you do a google search for “RGBHV over shielded cat5” you should hit some relevant information. (Note: the google answers hit looks really bogus as they are talking about sending video vs. doing a long VGA run)<\/p>\n
Here is what we used:<\/u>
\nShielded cat5 cable. This is 4 twisted pairs (8 wires) + a drain wire that is un-insulated.
\nDSub15 VGA connector with metal case.
\nRG59 BNC connectors
\nHeatshrink etc,.. to make it pretty.<\/p>\n
For Karl’s projector (my old ECP actually) he needed both H and V sync. So as you can see, we double up the shield wire as a ground for the H and V sync signals. This just means you need to splice on a Y-split at the BNC end. The Ampro only has a 4-wire hookup, so we were able to leave the shield wire alone – soldering it to the metal VGA connector “hood” and leaving it unconnected at the BNC end — this also let us use the brown stripe wire as the ground for the combined sync signal which runs on the H sync line.<\/p>\n Since we are not using any shielding at the BNC end, we tried to keep the pairs twisted and kept the distance they were fanned out to a minimum (6 inches or so). We used coloured heat shrink to identify the connectors which turned out really slick. For my cable I also got some 1\/4 inch nylon sleeve from TakeFiveAudio<\/a> to make it black for the bit that runs across the ceiling as the cable itself is blue.<\/p>\n This new cable replaced the VGA break-out + BNC extensions I was using. The BNC extensions were pretty hacked up, and were using a steel core RG6 cable as well. I didn’t see any real cable artifacts in my image previously, and the new cable seems to be flawless. For Karl there was a more dramatic difference as he had a very poor VGA extension + VGA break-out cable — this was giving him a visible ghost in his image which went away with the new cable.<\/p>\n Cost was under $40 for each assembled cable. Everything was easy enough to find locally, the cat5 being the most difficult and that only took 4 phonecalls to a few network cable installers until I found one nearby who had some shielded cat5 that he’d sell small quantities of.<\/p>\n","protected":false},"excerpt":{"rendered":" Karl gave me a hand putting together a new cable to feed the projector. The project went really well, we both needed long VGA cables and did his a few weeks ago. If you do a google search for “RGBHV over shielded cat5” you should hit some relevant information. (Note: the google answers hit looks … Continue reading “Cable Building”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-45","post","type-post","status-publish","format-standard","hentry","category-ampro-journal"],"_links":{"self":[{"href":"https:\/\/lowtek.ca\/ampro\/index.php?rest_route=\/wp\/v2\/posts\/45","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lowtek.ca\/ampro\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lowtek.ca\/ampro\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lowtek.ca\/ampro\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lowtek.ca\/ampro\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=45"}],"version-history":[{"count":0,"href":"https:\/\/lowtek.ca\/ampro\/index.php?rest_route=\/wp\/v2\/posts\/45\/revisions"}],"wp:attachment":[{"href":"https:\/\/lowtek.ca\/ampro\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=45"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lowtek.ca\/ampro\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=45"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lowtek.ca\/ampro\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=45"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}HD-15 pin Cat 5 color<\/u>
\n1. Red + Orange
\n2. Green + Green
\n3. Blue + Blue
\n4.
\n5.
\n6. Red - (aka GND) Orange stripe
\n7. Green - (GND) Green stripe
\n8. Blue - (GND) Blue stripe
\n9.
\n10. Ground (GND) shield wire.
\n11.
\n12.
\n13. H sync Brown
\n14. V sync Brown stripe
\n15.<\/code><\/p>\n