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"Brad" wrote in message ... "Dee Flint" wrote in message ... I've often thought that a person (unless handicapped) should demonstrate putting a simple PL-256 on coax. Dee D. Flint, N8UZE Perhaps they could demonstrate a PL259 connector instead? Brad VK2QQ OOPS! Sometimes my typing just goes to pot. Dee D. Flint, N8UZE |
"Brad" wrote in message ... "robert casey" wrote in message hlink.net... Perhaps they could demonstrate a PL259 connector instead? Extra credit if they can do it without melting the dielectric insulation of the coax. More points if they can get the solder to actually flow onto the connector body where the shield solder holes are located (helps if you use a small file to remove the plating first). And more points if they remember to put the shell on the cable in the correct direction before doing any soldering ;-) Or they could demonstrate extra skills and just use crimp on PL259's like I do. These are much easier and more reliable. They are more expensive but their construction is superior. My original comment was directed at Dee offering points for something called a "PL256". Brad Yup, some days I can't type. The crimp on would also be an option since I did (purposely) phrase it as install it. In either case, the pass/fail criteria would be continuity with no shorts. Dee D. Flint, N8UZE |
"Brad" wrote in message ... "Michael A. Terrell" wrote in message ... robert casey wrote: I used to tin the braid then use a small tubing cutter to trim the shield to the right length. I used a drill to remove the plating from the holes and file all the chrome off between the holes. I tinned the center conductor and put a drop of liquid RMA flux on the center conductor and the braid before I put the coax into the plug, then soldered all four holes and the center pin. I didn't melt the dielectric, and you couldn't pull the coax out of the plug. That's a hell of a lot of messing about and time consuming too. A crimp on PL259 for RG58 series or RG213 series cables would take about 2 minutes to install, no soldering, no chance of heat damage, no shorts and they can be fitted in the field. Brad. As with anything else, there are both advantages and disadvantages. The crimp on ones seem to be more prone to having a shorter life. Why, I don't know. Dee D. Flint, N8UZE |
"Brad" wrote in message ... "Da udder one ya dont know" wrote in message oups.com... Solderless connectors for RF applications? A quick fix for sure but not a lasting one! The only crimped connector I've ever seen work is the cable TV connectors and the center conductor us used directly. Crimp on RF connectors have been used for decades, BNC, TNC and N connectors, good to 1.5GHz, UHF connectors to 500MHz. Used in most avionic and military applications. (many of the connectors have a mil p/n) The crimp forms a cold weld which is better than solder and more reliable considering that the crimp tools are calibrated. http://www.radiall.com/vdocportal/po...egoryId=382831 Download the BNC catalog, go to Page 12 for a sample of BNC crimp on connectors. The UHF's are similar. Brad. Unfortunately too many of the installations are sub par. When I have purchased antennas that came with crimp on connectors, such as many mobile antennas, I've had to replace the connector in under a year. Dee D. Flint, N8UZE |
"Userbeam Remailer" wrote in message ... In article "Dee Flint" wrote: "cl" wrote in message o.verio.net... "bb" wrote in message oups.com... [snip] I wonder how VE Dee would accomodate the disabled in the Tower Climbing pass/fail skill exam? Tower climbing is not a basic skill so there is no need to test for it. One can put up a wide variety of antennas without a tower. True! On the other hand, I've often thought that a person (unless handicapped) should demonstrate putting a simple PL-256 on coax. Oh, is that a new kind of connector? I like using PL-259's on coax myself! :) Ok, I accept the 50 lashes with a wet noodle. Dee D. Flint, N8UZE |
Dee Flint wrote:
"Brad" wrote in message ... "Michael A. Terrell" wrote in message ... robert casey wrote: I used to tin the braid then use a small tubing cutter to trim the shield to the right length. I used a drill to remove the plating from the holes and file all the chrome off between the holes. I tinned the center conductor and put a drop of liquid RMA flux on the center conductor and the braid before I put the coax into the plug, then soldered all four holes and the center pin. I didn't melt the dielectric, and you couldn't pull the coax out of the plug. That's a hell of a lot of messing about and time consuming too. A crimp on PL259 for RG58 series or RG213 series cables would take about 2 minutes to install, no soldering, no chance of heat damage, no shorts and they can be fitted in the field. Brad. As with anything else, there are both advantages and disadvantages. The crimp on ones seem to be more prone to having a shorter life. Why, I don't know. Dee D. Flint, N8UZE Dee, I have worked in broadcast and manufacturing. 95% of the failed RF connectors I've seen were crimped. I've never had a soldered PL259 come off after I started using the described method. The assemblers at Microdyne were required to put completed crimped cables into a fixture that applied the manufacturer's specified tension on each crimped connector. Most of the SMA we used were still soldered, either on flex or semi-rigid cable. In 30 years I have only seen a few cracked solder joints on semirigid, and that was on N" connectors in Collins 4 GHz Satellite TV receivers. Over half of the units I repaired for United Video Cablevision had bad solder work on the RF input connectors. I was at a hamfest a few years ago and bought a box full of PL259 connectors that were cut off bad cables. I used needle nose to pull the insulation out and held the shell over a propane torch a few seconds and dropped it on the bench to remove the loose stands and old solder. After they had cooled I did the center pins that way. No damage to any of them and all were nicely tinned for re-use. -- Former professional electron wrangler. Michael A. Terrell Central Florida |
Brad wrote:
That's a hell of a lot of messing about and time consuming too. A crimp on PL259 for RG58 series or RG213 series cables would take about 2 minutes to install, no soldering, no chance of heat damage, no shorts and they can be fitted in the field. I didn't make the cables one at a time. I would make dozens and it went very fast because I did it like a small assembly line. Not only that but people paid about $3 per connector I installed than anyone else in the area wanted. I could make about a dozen cables in an hour, back when I was in the RF business. I didn't make, or use RG58 cables. Only RG-8 or 213. I have to find the right connectors for the teflon coax I have in the shop. I think its two spools of RG-179 and a spool of RG-400 Who says you can't get a shorted cable with crimp connectors? I've seen plenty of shorted cables with crimped connectors. -- Former professional electron wrangler. Michael A. Terrell Central Florida |
K=D8HB wrote: Uh oh...no "73"...And it was looking so promising for a few moments there... Steve, K4YZ Nope, no "73". That went away when you saw fit to personalize the conversation with disparaging ad hominem remarks unrelated to the topic, and to bring uninvolved family members into the conversation. Hans, K0HB He always wants to have conversations with other people's wifes and children. |
K4YZ wrote: Mike Coslo wrote: bb wrote: Mike Coslo wrote: I've heard of some pretty wild times long before things were "dumbed down"! - Mike KB3EIA - Mike, I've been meaning to ask. Are you still sore at me for not giving your grief about the balloon project? HEH! Now you confused me Brian. But seriously, that you *didn't* give me grief was duly noted! I've been stressing over Steve's label of "antagonist" for not giving you grief for some time now. I'm such a terrible person. Hi! Ohh, you know how newsgroups are..... I know how they are, Mike! You sure know how to destroy one. They're populated by people who don't have the intestinal fortitude to sign their names to their posts and they make up allegations to try and hide behind. And people who sign their names to every made up, false allegation. Ask Brain where the Techs went. He insists that they were "chased away", yet refuses to say who chased them away or where they went. I've asked him repeatedly after he unequivocally stated they had. Steve, it's old news. You're welcome to research it in the archives unless you're just too lazy and/or inept. Ask Brain where the "unlicensed devices" are. He insists that "unlicensed devices" play a "major roll" in emergency communications. He WON'T provide any evidence of it, but he insists it's true. It's true. Brain has also recently asserted that ARES is "overblown", and that it won't respond to "real disasters" due to the age of it's membership. I've posted several news releases, all of them from within the last 2 weeks, and Brain won't explain how it is ARES is "overblown" when there's evidence to the contrary. You failed as shift writer. You failed miserably, and you proved my point. Those are just the recents ones...The Somalia horse is pretty dead...He could never make that horse trot no matter how colorful a jockey he put on it. I'd like to see the documentation that you were the IMD on Okinawa. His "I've worked DXCC several times over" stories are cute, too... Please retell those stories, Steve. Now his most current diversion is adding up non-existant "lies". It just makes him look more feeble, but hey, it keeps him warm. They are well documented, and you just issued lie #27. Keeps me warm too....from laughing so hard! Oh, yeh, the "bwhahaha" laugh that you claimed to not make. |
bb wrote: K=D8HB wrote: Uh oh...no "73"...And it was looking so promising for a few moments there... Steve, K4YZ Nope, no "73". That went away when you saw fit to personalize the conversation with disparaging ad hominem remarks unrelated to the topic, and to bring uninvolved family members into the conversation. Hans, K0HB He always wants to have conversations with other people's wifes and children. No "conversation", Brian...Just make them aware of your conduct. Steve, K4YZ |
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