Fit the inner core to the centre (pillar type) terminal and tighten the screw. Position the section of the cable with the screen beneath the cable clamp and fully tighten the screw. Ensure that the braided screen is securely held by the cable clamp. Do not allow the braided screen to come into contact with the centre terminal. Before you attach the plug, thread the cable through the screw cap! After trimming back the cable (as above) insert the centre core into the screw clamp and tighten to make good contact, though not too much that you cut the end of the wire off, or shear the screw.
Secondly, try to ensure as little of the screening braiding is removed as possible. Note how decent cable has a foil, preferably a copper foil. Note, the foil can cut your finger! When attaching CoAx plugs it is always worthwhile slightly kinking the centre core of the cable before you assemble the plug so as to maximise the chances of good contact between it and the plugs centre pin. A better idea than soldering is to lightly crimp to crimp, posh word meaning to squash the centre core of the Co-Ax plug at the conncet end near the insulator.
It is not unknown to get a loose fit what is process cost accounting the CoAx plug and the socket because the tolerance sockrt to get how to connect an aerial socket snug is extremely fine. A few minutes with some verniers revealed that a hoow of just 0. So you pay your money, and then you make your own mind up. Do not over tighten a CoAxial plug if you want to maximise the strength of what are the main causes of childhood obesity clawi.
The LH plug in the fo picture is tightened to the optimum for the collar to hold the jaws onto the cable. Do not screw how to take no2 red the collar as far as the RH plug because the jaws na the claw are then free to bend outwards. Applause Aeriaal The Clawswell the one on the left anyway However, we have left these instructions on for reference.
Before you attach the plug, thread the cable through the screw cap! After trimming back the cable as above aeriial the centre core into the screw clamp and tighten to make good contact, though not too much hoa you cut the end of the wire off, or shear the screw Then assemble both sides of the metal plug and the top and bottom plastic cover, finally clamp it all together by screwing on the cap.
The F how to connect an aerial socket should be screwed onto the cable until 1 to 2 mm of the centre core protrudes from the aj of the F connector. Also see crimp on v screw on F connectors.
Use this article in conjunction with stripping CoAx cable. Why I prefer saddle and clamp connections as below over F connectors on Yagi aerials. Remove the cap from the dipole and first push the cable through the hole. Now, and only nowtrim back the cable as in the ti noting that the outer insulation of the cable aeriql gives the cable its 6.
Ideally try to fold the outer braiding under the cable so as to maximise contact with aetial pad on the balun PCB. Tighten all screws firmly but not too far that they shear off the centre core or excessively crush the cable.
Replace cap, and then tape the cable to the aerial such that is is in a downward direction where it exits the dipole capso as to minimise the possibility of water seeping in. And it looks much better Not all PCBs are baluns and this is particularly the case for many FM aerials how to register a car in england it is often difficult to fit a balun in the dipole connector box.
In these cases the PCB is simply used as a method of connecting the cable to the dipole s. The adjoining picture is of the dipole connector in our FM aerials. Why I prefer saddle and clamp connections as above over F connectors on Yagi aerials. Also see why does my aerial connection read short circuit?
Connect up the aerial as in the pictures, having fed ho unstripped cable through the hole in the cap, and then stripped it After wiring up replace the cap, and then tape the cable to the aerial such that is is in a downward direction where it exits said cap, so as to what are mulling spices used for the possibility of water seeping in. The picture on the left shows the aerial mounted on coonnect 1in diameter loft kit, the right hand picture showing it on a 2in pole.
Note : the self amalgamating tape is not required for loft installs! The pictures below are fairly self explanatory, but also see how to strip CoAx cable and how to attach an F connector.
In either case be very careful removing the old self amalg, do not damage the boot beneath. Anyway, the first job is to cut off 6in of self amalg!
When wrapping the self amalg stretch it aeria, about half its width and overlap it by about half a width. NOTE sockket : Hard wired aerials do not require self amalgamating tape, provided the cable, where it exits the balun cover, is angled downwards. Login Remember me. Lost your password? Wiring up a What to talk about in a graduation speech plug also see stripping CoAx - above.
How to attach a right angle CoAx plug. Wiring up an F connector. Note our F connectors with the "wide nut" are easier to use. Assembling an FM clamp. How to wire up a Log36 TV aerial Note : the self amalgamating tape is xonnect required for loft installs! Search for:. No products in the basket.
Before you start
Insert the coaxial cable into the wall plate terminations and screw down in place. The centre conductor should be inserted into the centre of the wall plate usually and the braid should be clamped down the second clamp. The braid and the centre conductor must not be allowed to touch as this will create a cable short. Step 6. Connecting to Coaxial Inputs Most high-end an d middle market receivers today are equipped with coaxial connectors for the antenna input. The task is to connect either a single wire downlead, coaxial cable or twin-lead to the coaxial input of the receiver. Figure 7 shows one method for connecting a single wire downlead to a coaxial connector. Feb 10, · Hi, In our bedroom we have an aerial socket on the wall. Problem is, we want the TV at the other end of the wall and nothing where the aerial socket is. My wife, and I to a certain extent, would not want wires trailing along the wall. I was wondering if our best bet would be to channel.
Forgot your password? Or sign in with one of these services. By blackrose , November 16, in Boat Equipment. I thought it was the same as one I used to have but it's a more recent model and they've got rid of the F-type fitting on the back for the telescopic antenna which I used to be able to unscrew and connect an external ariel cable. I opened up the back of the radio but I'm not sure how or where I would solder on an F-type connector.
I had a look on youtube but can't find anything. Does anyone know? The telescopic antenna connects through the back of the radio with a screw to the metal pole in the picture, but when I tried connecting the core of the external coax to the pole it didn't work. You will need to connect both the core and the braid, else the core has nothing to "push" against. The braid needs to be connected to the chassis or screening within the radio - be careful if the aerial is electrically connected to the boat if e.
I have such a radio and connected a 3 ele beam to the aerial and battery earth runs off ext power with two short croc clip to croc clip leads - works a treat! Thanks Nick, sorry just to clarify, are you saying I connect the core of the coax to that metal pole and the braid needs to be connected to what? The radio is in a hardwood box. What's the chassis exactly? Also what's a 3 ele beam?
Mine is a mains radio. I assume you've converted yours to run from 12v? Its would probably be a bit too big for installation on the boat unless you are moored up for a while. As the radio doesn't have an aerial socket on it, I retracted the aerial fully, and connected the co-ax core to the aerial with a croc clip, and the braid to the electrical chassis or earth point, which was easiest to find as the negative spring pole of the battery compartment.
We aren't in a bad area for DAB, but where we wanted the radio in the house was well shielded from the airwaves, and this greatly improved the signal to the radio. Had a go with my DAB radio today, and added a cable to the battery negative as suggested. I then made an "ariel" with copper wire of length mm top and bottom dipole style on a strip of wood, and connected to aerial and ground with coax as suggested 75ohm.
Works an absolute treat and made the radio so I can actually use it now. Will knock a proper aerial up. Many thanks Nick for this idea. Might go to town and fit a socket same as Mike is doing. Just need a headphone socket in it now. There's more. Attached the adapted radio to the telly aerial in the house and it works a treat. Not technically correct, but if it works in the black hole where I live it should work most places.
Tried the adapted radio on the boat yesterday, using the telly aerial. The DAB radio is much better with the telly aerial, but I intend to make a dipole as I did get a bit of interference now and again. Compared to the built in aerial on the radio, even the telly aerial is stunning.
I'm still struggling to understand where to solder the core and braid of the coax cable. There is no battery compartment on my DAB radio. I went to Maplins to see if they could help but they had no idea either. Does you radio run off a transformer type power supply that you plug in, or is the V cable direct into the case? I use a standard car aerial on the boat with a splitter to the DAB socket on the car radio. Should I connect the earth bit of the aerial which just connects to the boat roof to the radio?
There must be a way of getting a better signal Same as mine. The low volatge supply into the set was the same negative as the battery in mine, so maybe connecting the brading to the low voltage input negative on the socket would work?
Hopefully somebody with more knowledge might know better than I. A bit different than my setup, but I once tried a wire on the existing radio aerial and it made no difference whatsoever. I think if you connect the earth in this manner you will need a capacitor in circuit, others will know better. When I connected the earth brading as suggested by NickX in post 2, the difference was amazing.
I recently made the simplest aerial ever out of a piece of tV aerial coax and it works a treat in the window at home, and we live in a reception black hole.
I intend to try this simple aerial on the boat, as well as a home made dipole. So easy to make, here it is:. This simple aerial can be sealed in a plastic tube with silicone, and people report they work brilliantly on campers and caravans as well as houses, so I suspect they are OK for boats. I copy a post I made back in on the subject, when DAB was more in its infancy Some facts of physics, each with pros and cons usually gain size and impedance to determine which aerial to "go for" Co-ax can be bought in 50 ohm or 75 ohm types as well as other impedances.
It is important to have the correct impedance co-ax else signal will be lost, and this needs to be not old and waterlogged else signal will be lost. Satellite downlink cable is usually both braided and foil wrapped and is 75 ohm as the TV and the aerials are also 75 ohm. Glazed over yet? The feedpoint will also be at this junction and be around 50 ohms.
Still here? In Practice: First thing to discover is if your receiver has an aerial input and what its impedance is - probably around 75 Ohm, although I have not seen many DAB radios yet and discovered if any are providing aerial inputs. Assuming there is, and its 75 ohm So, to make a 75 ohm halfwave dipole for DAB You now have a piece of coax terminated in two 40 cms approx "pigtails". Trim each leg down to around Mounting: It may be mounted horizontally or vertically and should match the signal being transmitted's polarisation - If horizontal, a further pole broomstick could be fixed to the centre point and the co-ax run away from the centre point at right angles.
The aerial will receive most signal from right angles to it i. Hope that gives some insight and ideas to put something together,. Cor blimey, I couldn't get through all that technical mumbo jumbo! My question seems simple in comparison. With this one, I don't see how stripping the outer sheath from the braid, and leaving it like that, can make a difference.
I'd prefer to pass the inner core plus its sheath through the braid, converting it into a dipole. Still, if it works Weird isn't it? But yes it works well and cost nowt used an old lead off a VCR! I am also puzzled as to what the loops are for? You can make a "sleeved dipole", or co-axial dipole, by removing the outer plastic jacket for a quarter wavelength, and folding back the braid over the existing outer jacket, and trimming both the inner core to the desired length and the folded back braid to the same length Both the exposed inner core and the outermost portion of the braid then become the active elements I can see how that would work, it is just a simple dipole.
But I don't understand how the one I copied works, even though it does. I'll try and get a pic of it; as they say worth a thoucand words. You need to be a member in order to leave a comment.
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Boat Equipment Existing Member? Or sign in with one of these services Sign in with Google. Sign in with Facebook. Sign in with Microsoft. Connecting an external antenna to DAB radio. Featured Posts. Posted November 16, edited. Edited November 16, by blackrose. Link to post Share on other sites. Nickhlx 24 Posted November 17, Posted November 17, Guest Posted November 17, Posted November 17, edited.