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    freesat via skydish no signal help

    We have sky at present and I wanted to put freesat in bedroom. I have a box and thought I can just attach a cable to spare port on lnb amd plug in but I have no signal at all... Some points that may be the reason:
    I had to remove one plug to push cable through hole in wall. amd then reattach the plug to push into the lnb.
    when I pushed this into the lnb it went on extremely easy. I didn't want to push more in case of damage. It is also push in and doesn't (seem to) screw in.

    anyone pushed a cable into lnb? is it simple or tough?
    could any whiskers of fine wire be effecting signal if they are now hanging out a little from the rubber sheath?

    Please advise..

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    10 Comments

    is there actually an lnb to conect to?

    I used a cable splitter as I have sky downstairs and freesat upstairs if I were u I would go this route

    amazon.co.uk/gp/…NII?cache=84651a95668b6d771943cb87099d9622π=SY200_QL40&qid=1405793396&sr=8-1#ref=mp_s_a_1_1

    if the thin copper sheath touches the solid copper core of the cable, it will cause that.

    Have a look on youtube for a video guide on how to attach the f connectors properly and that might shed some light on it.

    Original Poster

    The lnb is on the dish. It has 4 ports. 2 for sky are used and 2 are free.
    I'll check the cable tomorrow as someone borrowed the ladder which is annoying.
    I'll check that video but is it easy to get the f connectors back on without the copper sheath touching the core

    Hi t3rm3y.

    Here's a link to a good site with some interesting stuff concerning all things satellite. Ignore the title of the website - it's also appropriate to home users as well as caravan owners! Hehe. The video at the bottom of the page will give you a good idea about fitting f-connectors.

    satelliteforcaravans.co.uk/bad…htm

    Also, it might be a good idea to go to the diagnostics section on your digibox and check the incoming signal. Some receivers can turn off the incoming port from the LNB. Just to clarify what you said in your original post - did the cable you used to attach to the LNB not have an f-connector on the end? They don't usually 'push' on. They normally have a small threaded female socket to screw over the male threaded 'plug' on the LNB.

    Anyway, hope the vid helps. Some things are trial and error. It might also be worth plugging into the other 'spare' LNB port - just in case the one you tried first is a dud. Perhaps corroded due to weathering?

    Best regards, Phsy.

    Original Poster

    Cheers phsy.
    I'll have a look. The cable i used was actually a sky extension cable (twin coax) with the f connectors on one end of both cables. All I did was seperatly the two sheaths so could use the cable for freesat.
    The ends were like this link
    futureshop.co.uk/pro…957

    so when that bit was unscrewed I was left with
    m.screwfix.com/p/p…AsQ

    which is what pushed into the lnb. There just seem to be anyway to screw it in and am too scared to tamper with the sky ones in case f - it up.

    Morning! Had a think last night and can't say I've seen a 'push fit' LNB before. This is a typical 'Quad' Sky LNB:

    newsat.co.uk/ima…jpg

    The four 'plugs' sticking out have a male thread to take the female threaded socket on the end of your cable. This is how the ends of the connecting cable should look like:

    soundandvision.com/ima…jpg

    Trying to think outside the box; as it were; but have you raised the weather protective boot on the LNB? If it has one, that is? A lot of LNB's have a plastic shroud that can be pulled down once all the relevant cables are attached. This then covers the connections and shields them from the weather. I just wondered if you hadn't done this and just tried to 'push-fit' the cable connector into the receiving LNB plug perhaps?

    With the shroud 'engaged' you wouldn't be able to see the plugs protruding from the LNB like you can in the photo example above. In reverse, a gentle push upwards on the LNB shroud would retract it back inside the body, revealing the plugs. Then you would have full access to insert the copper core and screw the cable end on properly.

    One more thing. The cable I suspect you are trying to use is 'shotgun' cable - i.e. a dual cable. This is designed for receiver boxes that can record stuff - or have twin tuners so you can record one programme and watch another. In some units you can record two programmes at once. This is usually thinner cable. It will still work, but in 'single' installations you would've been better buying a length of CT100 cable. I know you said that you had to push it through the same hole in the wall so, not to worry. I take it you didn't want to drill a hole through the house wall so the cable could go directly into the bedroom?

    So, where are we? Right:

    1) Check f-connector on both ends of the cable. Make sure they are fitted correctly - as in the video(s) provided. It's very easy. Just take your time. A bit of vaseline on the cable can help the connector screw on easier and also weatherproof the end against corrosion a bit, too.

    2) Check that the LNB doesn't have a weather-shield that just needs raising before inserting/screwing the cable on. Don't forget that the copper-core should protrude from the end of the socket on your cable by a few millimetres. This goes into the plug on the LNB and the female threaded socket on the cable should screw on nice and tight. Once in place, pull the shroud down again to protect the cable connections.

    3) Doing the same at the receiver end (just without a shroud!) power up and try tuning/viewing. I don't know what box you're using but most have a menu; of course; whereby you can access a range of options regarding tuning, signal quality and strength and 'engineer' modes for tweaking things etc. As I said, some boxes have the option to 'turn off' redundant ports so that might possibly be a case - I doubt it though.

    See how you get on; my friend; but most of all - be safe.

    Regards, Phsy.

    Original Poster

    Hi Phsy,
    Thansk very informative, i had a look late last night (still light) and when took the conenctor off there was one stra fibre that was touchign the core - so i pushed it down and refitted the shroud - plugged in and works great. just followed that caravan video so was realy good.

    The dish does seem to only have push fit connectors though, not screw in. it may have a weather protecting boot, but i would have thought the cable would just drop out straight away if so? i didnt touch anything else but will look for a plastic shroud if the cable falls out. again thank you

    Edit: i just had a look at some images and i think you are right about the shroud as it looks like this:
    satgear.co.uk/med…jpg
    so i think the cable will drop out
    is it easy to get the shroud off without the dish become misaligned from tugging etc?
    Edited by: "t3rm3y" 21st Jul 2014

    t3rm3y

    Hi Phsy,Thansk very informative, i had a look late last night (still … Hi Phsy,Thansk very informative, i had a look late last night (still light) and when took the conenctor off there was one stra fibre that was touchign the core - so i pushed it down and refitted the shroud - plugged in and works great. just followed that caravan video so was realy good.The dish does seem to only have push fit connectors though, not screw in. it may have a weather protecting boot, but i would have thought the cable would just drop out straight away if so? i didnt touch anything else but will look for a plastic shroud if the cable falls out. again thank you Edit: i just had a look at some images and i think you are right about the shroud as it looks like this:http://satgear.co.uk/media/catalog/product/cache/4/image/9df78eab33525d08d6e5fb8d27136e95/s/a/sa67-3-1500.jpgso i think the cable will drop out :(is it easy to get the shroud off without the dish become misaligned from tugging etc?



    Hello again. Hope you had a good weekend. Glad you've had some success. In your provided picture, that LNB definitely has a "pull down" shroud. All you do is apply a light upwards pressure at either side and the shroud will retract to reveal the 'plugs' that your cables attach to. As long as all your bolts/clamps etc. are nice and tight, you should do no alignment 'damage' at all. In fact, the weather (i.e. strong wind) would move your dish more than you could. In theory...hehe.

    Anyway, without an actual "photo" of your LNB I can't comment on whether it's push-fit plugs but as I said, I've NEVER seen one. Perhaps someone else who reads this thread has and will comment. I can't see how the plug on the end of your cable would hold into the LNB properly by just 'pushing' in/on. Oh well...

    All the best, Phsy.

    ^^^^^^^^ Agreed, I have never seen a push fit connector to any LNB, they are all " f " type screw on.

    It is essential that they are fully watertight, I use self amalgamating tape to protect them, far better than any push on shroud.
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