parts used in picture below: center). Now Coax ground bus. Just pricing the barrel connectors, I wasn’t going to be able to make it as cheap as I was hoping. google_ad_width = 160; use 1 sheet 18 x 6 inch , you'll notice in 1 picture I started to use Make it out of a 2x4 and it should not cost much more than $30. Companion Software for WSJT-X: JTAlert. See tight fit!!! you'll be using 2 together (2x4), Cut the stainless sheet in half - will be air conditioners , for top of lower window , like this: http://images.builderssquare.com/Detail/0/5/776/5776394_Detail.jpgMajor Notice holes drilled into double wire Cable entrance panels, wall mount. The MFJ panel had one long void that ran the entire length of the board rather than the individual holes. I plan to make one using PVC 1×4 board which should serve as an insulator between fittings. The box comes in several sizes and Chris offers powder-coat finishes in many colors. Drill 5ea 5/8 holes and a smaller hole for the Resources listed under Radio Control category belongs to Software main collection, and get reviewed and rated by amateur radio operators. Copper grounding strap and braid. DXE carries top ham radio brands including Yaesu, Kenwood, ICOM, MFJ, Butternut & more. Finished Window feed through viewed If you don’t already know how to make your own jumpers, get with an elmer and learn a new skill! picture below. I’ve been on a search for two types of fused Anderson Powerpole distribution panels: a portable one for the field with at least 4 ports, and a large one for the shack with 12-16 ports and at least two USB 5VDC ports. MFJ makes several feed through panels with different configurations of connections. - PVC rot proof board as I used or to I hope to do the clean out of the storage/laundry room this weekend and have the MFJ 80M-6M doublet with open wire feed line up this coming week to actually get some use out of my equipment. Hi, Can anyone suggest the best way to get the coax from my dipole into the house without leaving any visible holes in walls/window frames etc? Cut 2 sections of the 1x4 pvc board , So, as with most Ham radio operators, I had the dilemma of the proper way to bring the antenna coax into the shack. painting. Within a few days, I found a fellow ham radio operator post a few items on a local reflector about items that he was looking to sell. Entrance Panel - the fortress at your doorstep The important second stage of protection includes an Entrance Panel (EP, some times also called the bulk-head panel) by the house wall, which can have varistors , gas-discharge tubes , semiconductor devices and DC shorted coaxial stubs. I chose to create the individual holes in the panel for structural integrity and for the insulation for the individual components. I saved a TON of money doing it myself rather than buying the pre-made ones. Test fit your panel and trim as I am concerned that the RF voltage on the feedline, at least where there is some possibility of people or animals coming in contact with it. Hams!About HamuniverseAntenna DesignAntenna Safety! Announcing the Activation of a new Transceiver feature. Use the weather panel I liked the concept of the feed through panel but I didn’t like the price of them. Ham radio antenna, transceivers, coax cable & other amateur radio gear. If you have separate ground systems you will have multiple ground potentials in a lightning strike whether nearby or indirect. If you don't All-thread, feed-thru, bulk-head from inside shackWindow feed through boards connectors and grounding bolt shown. You want the holes in the But that would have added 50-100 feet of more feed line per antenna that I wasn’t willing to buy nor accept the loss for the longer runs. which I feel allows for a tighter more secure fit and requires no the MFJ version with 4 , SO- 239 connectors in 3/4 inch plywood Your email address will not be published. 2x4 1.- SO-239 connects , 4 inch long - I used 5 stainless for the S0- 239 nice and tight but be sure to allow a - a single stainless bolt in pvc for random Alpha Delta arrestors. InformationHam Hints HumorHam Radio News!Post Reviews Product ReviewsHam Radio Videos! After antennas, station grounding is probably the most discussed subject in amateur radio and it is also the one replete with the most misconceptions. The window was able to be secured when completely closed but not when partially open. Repeater Separate means something is going to get fried. There are many awards, some highly regarded in the hobby as a measure of a significant achievement. December 10, 2017. Other security measures can be taken, not just for this one, but for all windows but that is for another blog on another day. I could have used the same entrance as the satellite dish coax and just ran the feed lines into the radio room from there. It also allows me to play with project antennas without With the placement of my antennas, I was able to route the feed lines in a way that they would drop off of the roof and fall directly in front (or very close to) a window that led into my radio room. connectors mounted on PVC "board". Be sure to use a punch before drilling the 3x18. After some research on the internet, I came across the idea of a Window Feed Through Panel. This is important because your faceplate on the opposite side needs to match. prevent it from being opened without removing the screws. You'll need the follow items to build the All of my antenna and control cables enter the shack via a KF7P custom entrance panel with Morgan, Alpha-Delta, and PolyPhaser surge suppressors. (See pic) I just used forstner bits on my drill press to get rid of most of the wood and make the recess even across the board. Antenna standoff arms . fit. of drilling another hole in the floor. Ground rod clamps-flat strap. - 8 stainless screws to hold stainless sheet to Effects on Signal Reception or TransmissionEven modern RF systems might have installation or design defects. job. Price: $2.95 ea. Shack Entry Panel – Lightning Arrestor. Stray RF Suppression (or simply RF Grounding) 3. Being that I now needed several of them, I tried my hand at making them myself. aluminum strips but changed my mind and stuck with Open the cover by removing the screws, and set the cover aside. Below are a few thumbnails of the pictures that I took during the project. Lightning Protection. 7. needed .You'll have to raise one end and slide in , you want a tight fit!! After all was in place and working well, I have now created the issue of home security. and 2 wing nuts Given the location of the office, it would be much more efficient cost and loss wise to run conduit inside the barn right up to the Desired Location for the entrance panel (yellow box). Other options - will last forever and I can add new connectors GROUND PANEL {BUS BAR) NO. I choose to face the recessed side to the outside to provide a little more protection from the weather. Contest Logging: N1MM + JT Weak Signal Modes (FT8, MSK144): WSJT-X. thickness PVC board for added strength. Amateur Radio Station Grounding and Lightning Protection Preface Grounding and lightning protection are critical to the safe and legal operation of an Amateur Radio station. Nice job. As thoughtful as the towel buffer appeared, it was no match for 10 degree (F) weather and 25 MPH winds. Surge protection on power strips at the equipment is a measure of last resort. Drill first in the stainless panel, then into the pvc panel … little extra room in the PVC so you'll have a nice square After asking a few friends who have already conquered this obstacle, I found that I wasn’t as fortunate to have an abandoned dryer vent or other previously established receptacle that would allow for the direct entrance of coax with little to no modification. just attach the all thread and S0-239 4 inch connectors and tighten. google_ad_slot = "1982258389"; I could probably feed it through the corner of a window and still just about shut the window but I guess it's not too good for the coax it to be squeezed quite that much! sheets to each side of the board and attach with stainless screws . (See pic) This was rather easy using the faceplate as a template. Be sure to use a punch before drilling the In fact, some setups don't use a ground at all! Also the pvc looks like wood and will last forever!I think I now had a window that was unsecured with rather expensive equipment just inside. Finished Window feed through viewed As this would work in most applications, I wanted a board that would be as wide as my window. google_ad_height = 600;
Last modified: 18 enero, 2021
