AirNav Systems Forum
AirNav RadarBox and RadarBox24.com => AirNav RadarBox and RadarBox24.com Discussion => Topic started by: Tramline on December 01, 2009, 03:54:40 PM
-
This seems a very basic question, but for those who utilise their loft space can you advise how you route the cable please.
Do you drill through the ceiling or route some other way?
Also, given the standard antenna lead will not suffice, what is the best cable to use to extend its length plus fittings (actual part names/numbers) - where can these be sourced?
Thanks very much.....
Oh....BTW, how much is a standard antenna to buy?
-
Simple advice is don't bother. The supplied antenna is ok if you are desperate or going portable.
A scanner antenna will work at reduced performance. I would really recommend a dedicated 1090 MHz antenna. Several companies make them.
Usual rules apply -
as high as possible and with certainly nothing metallic around it.
C0-ax - use the thickest (i.e low loss) you can affor / fit in.
Don't bend or squash co-ax - nice gentle radiuses.
Hope that helps.
Dean
-
You could place in the loft and drill through the ceiling or just leave the loft hatch slightly open and let the cable throught that way. There are several strings on the forum regarding antennae, fittings , etc. They come in all shapes and sizes but remember they must be dedicated 1090 antennae to work properly. Airband antenna will not do. Just do a general search.
-
Simple advice is don't bother. The supplied antenna is ok if you are desperate or going portable.
A scanner antenna will work at reduced performance. I would really recommend a dedicated 1090 MHz antenna. Several companies make them.
Usual rules apply -
as high as possible and with certainly nothing metallic around it.
C0-ax - use the thickest (i.e low loss) you can affor / fit in.
Don't bend or squash co-ax - nice gentle radiuses.
Hope that helps.
Dean
Thanks for the reply Dean, but you'll see from my post that I don't plan to change the standard antenna but was wondering how others routed their cable and what extension cable they used and where it was sourced. I find the standard antenna just fine. I was looking at buying another standard antenna so one would remain in the loft and then I could use the other around the garden and mobile to other destinations.
EK01 thanks for yr reply I'll look out 1090 cable.
Anyone actually added cable to the standard antenna?
-
Google Walters and Stanton.
They are very helpful and keep stocks of W103 coax. Also pre-cut lengths with plugs on the end. You need the right combination of plugs and in line converters. They will sort you out.
J.
-
Tramline,
As jeremy says go to http://www.wsplc.com
You'll find all the info there. On their home page click on the ANRB details towards the bottom left of the page. By the way, it's not 1090 cabe you need but a 1090 antenna with associated cable and fittings. The website has the details.
Ian
-
Hi
I have mine placed in the loft and because I live quite high with few obstructions I can get a good range. I do loose some range through the gable ends though.
I use 20 mtr of Wesflex 103 routed down the outside of the house, drilled a hole through the wall to go under the floor boards and up to my PC in the dining room.
Hope this helps
Stewart
-
or looking at it the other way....
RB hardware in the loft as close as possible to the antenna, so use the standard supplied one fine. Then 'extend' your USB with a length of CAT5 UTP cable. I am using 25m+ of UTP for this with un powered adapters both ends, and it works just fine.
The advantage here is that your signal loss down the antenna cable is as low as possible,
and the only cable you have to route is a nice flexible piece of CAT5 which is cheaper than thick coax, which in my case routes down through airing cupboard, under landing floorspace and into 'Office' where main PC is.
Not endorsing this source as better than any other, but got the extender from www.cables2u.co.uk for £19.99
Hope this alternate view helps
-
Thanks to everyone who has responded with their setups. Very interesting indeed.
-
I tried the same route as t1mb0 using Maplin's version - totally u/s, went to a Lindy active unit with a separate psu, and had brilliant success with increased range, which I'm convinced was down to having a consistent power supply to the RB. I can thoroughly recommend the Lindy unit, but it's around £54 delivered for 12.5m version.
-
yep I steered clear of Maplins version as it didn't seem to offer the same performance as the one I got, if we're talking about the same one.
The one I have boasts up to 60m and with the length I am using it has been A1.
Plenty of ideas to keep you pondering anyway.
-
So just to confirm, I plan to use the supplied antenna but will need cable extension to the RB. I wasn't planning any extension to the actual RB box (i.e the USB lead from the PC to the RB) but simply a longer lead from the RB box to the antenna. I hope I'm making sense here. I'm most grateful for all your ideas and details you supply.
-
If I've read it right Tramline what you need is not an extension aerial lead but an extension USB lead ie between your box and your PC. Aerial extensions cause signal loss; UHB extensions do not.
Put your box together with your aerial in the loft then connect via extended USB to your PC. As discussed you will need a live powered extension - plenty on ebay.
Works well for me - although signal reception in my loft is not of the best regardless of the aerial. :(
-
As I said above, I can thoroughly recommend the Lindy USB Active Extension System available from
http://www.lindy.co.uk/sharing-converting-extending/usb-extenders-converters/
I've no connection other than as a very satisfied customer and user. You pays your money and takes your choice!
-
I'm obviously not explaining myself too well, so let me apologise and clarify.
1. I was intending to locate my standard antenna in the loft and keep it there. I was hoping to run an extended cable from the antenna down to the RB unit and my laptop which would be located in my study.
2. So what I'm looking to do is extend the antenna lead from the PC/RB to the loft. I would then purchase another standard antenna so I can go 'mobile' with my PC and RB whenever I wish.
I've taken onboard the comment about signal loss when extending the antenna lead but wondered if anyone had actually set their RB use as I've described and could add to any of the previous posts.
Once again, I'm most grateful for those who've posted their thought, comments and links.
Hopefully, I've explained myself clearer this time!
-
Thats how mine is set up
-
Thats how mine is set up
So how did you route your antenna cable and what extension lead did you use and where from?
Thanks
-
See my earlier post for routing.
I got my W103 cable and plugs from Waters and Stanton. There is also W.H. Westlake (www.whwestlake.co.uk). As the cable is heavy and stiff ( 11mm dia approx) you will need a fly lead/adapter to take the strain off the SMA socket on the ANRB box.
I fitted the plugs myself after routing the cable as N-plugs are qiute large in diameter
Just to mention I think there can be issues with some modern roofing materials/ insulation blocking the signal.
Hope this helps
-
This is the closest thread I could find for my question without starting a new one, so here goes:
My AirNav RB came about 2 months ago with an included Moonraker Radar-Rama external antenna.
Came with no cable or instructions, so dumped it in back of garage and lived with included 'stock' internal aerial instead.
Am now hooked and wanted to extend my Polar Diagram, so ordered a new external antenna and cable assembly.
Messed up on two scores:
1) I thought I was ordering cable and antenna - turns out I had just ordered cable assembly
2) I grossly underestimated the length of cable I would need!
Thankfully my new cable assembly is fully compatible with my mothballed antenna.
So that is problem 1 solved - currently stuffed outside bay window and working as a test... (although probably less signals than stock aerial...)
Have a problem with my underestimated 10m Westflex103 cable though:
Am in two minds as to whether to erect my external setup as a DIY project or get it done professionally.
Whichever route I take, it is going to have to be mounted slightly lower than the apex of my upstairs neigbour's flat as originally planned.
My rough calculations work out that my installation will be about 1 metre away from another neighbours UHF television aerial.
I can live with their aerial blocking my signal BUT don't want to start a riot with them if my new setup blocks their telly viewing!
Any advice/thoughts/experience/feedback much appreciated before I proceed and alienate myself from neighbours!
Cheers
Chris
-
Hi Chris, to put it crudely, will your antenna be behind or above their tele one, above would be beneficial to you and not affect them. Is the TV in your area from a main transmitter or a relay station?
-
Chris
It won't make the slightest difference to their TV reception, the RB receiver directly sees the 1090MHz signal, it has not local oscillator so cannot re-radiate this and interfere.
-
Thanks CoastGuardJon and Fenris.
Proposed location is in front and slightly below neighbour's tv aerial.
However, it is probably an unneccesary worry of mine anyway as they have a Sky dish.
Will check with them, as a matter of courtesy, but guess they probably no longer use their old UHF aerial anyway.