RX antenna - 4-way switch KIT assembling

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[<-- Back to Index|Main page] | [<-- Web page|https://remoteqth.com/4-way-switch.php] ---- rev.1.0 2/2017 by Jan OK2ZAW [https://remoteqth.com/img/ZAW-WIKI/biasteeacdc/4dir_bias_850.jpg|noborder] [https://remoteqth.com/img/ZAW-WIKI/4-way/4way-sw-wiki.png|noborder] [https://remoteqth.com/img/ZAW-WIKI/4-way/8.jpg|noborder] [https://remoteqth.com/img/ZAW-WIKI/4-way/9.jpg|noborder] !!Schematic * This switch is controlled by NEGATIVE VOLTAGE: -12V! [https://remoteqth.com/img/ZAW-WIKI/4-way/sch.jpg|noborder] !!Board [https://remoteqth.com/img/ZAW-WIKI/4-way/brd.jpg|noborder] !!Board Assembling * Use right resistors! * for 50 Ohm coax line use 2 x 100R/2W * for 75 Ohm coax line use 2 x 150R/2W [https://remoteqth.com/img/ZAW-WIKI/4-way/1.jpg|noborder] [https://remoteqth.com/img/ZAW-WIKI/4-way/2.jpg|noborder] * Place LED diode in right polarity! * Longer leg is + and is connected to GND on PCB. [https://remoteqth.com/img/ZAW-WIKI/4-way/3.jpg|noborder] [https://remoteqth.com/img/ZAW-WIKI/4-way/4.jpg|noborder] !!BOX * Drilling template * [PDF file|https://remoteqth.com/img/ZAW-WIKI/4-way/drill.pdf] [https://remoteqth.com/img/ZAW-WIKI/4-way/drill.png|noborder] [https://remoteqth.com/img/ZAW-WIKI/4-way/10.jpg|noborder] * Example for F connector [https://remoteqth.com/img/ZAW-WIKI/4-way/11.jpg|noborder] [https://remoteqth.com/img/ZAW-WIKI/4-way/12.jpg|noborder] * You can use Glue gun to fix F connector. [https://remoteqth.com/img/ZAW-WIKI/4-way/13.jpg|noborder] !!Common mode current choke * Common mode current choke construction * Wind 4 turns on one side than cross to another side of cores and wind rest turns. [https://remoteqth.com/img/ZAW-WIKI/4-way/5.jpg|noborder] [https://remoteqth.com/img/ZAW-WIKI/4-way/6.jpg|noborder] [https://remoteqth.com/img/ZAW-WIKI/4-way/7.jpg|noborder] !!Assembled [https://remoteqth.com/img/ZAW-WIKI/4-way/16.jpg|noborder]