Page 1 of 1
radio aerials and cables
Posted: Mon Nov 19, 2007 6:40 pm
by aroma
giday been giving on long term loan a cb radio I have aerial but lead to short to reach where I want to mount permantantly can i use the coax cable I have here ex tv (i think) or do I have to buy the real stuff if so where at resonable price, want to fit prs/uhf when funds allow as well
anyone in chch help me set it up?? have speights in the fridge
have a nice day
Posted: Mon Nov 19, 2007 6:48 pm
by NJV6
Hay there,
From what I can remember CB's need to have a tuned length of cable from end of aeriel to the Unit to work properly. The length being the wavelength or something like that.
So you may need a proper cable. When you buy the cable they are already the correct length.
O and I could do with a speights about now but won't be up till mid next month!
Posted: Mon Nov 19, 2007 6:55 pm
by Jezza
NJV6 wrote:Hay there,
From what I can remember CB's need to have a tuned length of cable from end of aeriel to the Unit to work properly. The length being the wavelength or something like that.
So you may need a proper cable. When you buy the cable they are already the correct length.
O and I could do with a speights about now but won't be up till mid next month!
Yeah that was the same for mine, I have a 3.6m cable that the radio is tuned for. Just go to dick smith and buy the cable which will have all the correct fittings on it, my cable was $30 with the base as well
Posted: Mon Nov 19, 2007 6:56 pm
by giovanni
TV coax coded RG59 is 75ohms not to be used for communications CB/PRS which is 52ohms coded RG58C/U.You can not measure the ohms unless you have complex measuring equipment.
Posted: Mon Nov 19, 2007 7:01 pm
by PR
If you go to dick smith dont be cheap get the stuff that cost more (RG-58 ) it is the best if you are going longer then optimon spec requires
Posted: Mon Nov 19, 2007 7:04 pm
by Sawdoc
i bought an areial and cable for my PRS from a company called Hitec areials and they were very helpfull. contact details are
03 384 3375 kennaway rd Woolston.
cheers Tony
Re: radio aerials and cables
Posted: Mon Nov 19, 2007 7:08 pm
by PR
aroma wrote:anyone in chch help me set it up?? have speights in the fridge
have a nice day
I am off work till 18th December so am free between 9am and 230pm and maybe able to help in the evenings
give me a call at some stage
no. below
Posted: Mon Nov 19, 2007 8:00 pm
by Philip
The difference is the characteristic impedance, it needs to be the same on the aerial, cable and radio other part of the signal will bounce back at each point where the impedance changes which will give you a lot interference (same thing happens with your tv)
Id imagine TV coax would work but cause a lot of interference when transmitting and receiving. Of course cabling isnt that expensive so just go buy a proper one.
Posted: Mon Nov 19, 2007 8:15 pm
by 86-surf
Sawdoc wrote:i bought an areial and cable for my PRS from a company called Hitec areials and they were very helpfull. contact details are
03 384 3375 kennaway rd Woolston.
cheers Tony
highjack...
i like your picture sawdoc:D
Posted: Mon Nov 19, 2007 8:23 pm
by Sawdoc
not as good as Mikes old one
Posted: Mon Nov 19, 2007 11:26 pm
by TJ
Sawdoc wrote:not as good as Mikes old one
There was a poll recently and I believe the decision was to keep the avatars of non-adult theme. You might want to revisit that.
Posted: Tue Nov 20, 2007 11:38 am
by Sawdoc
must of missed that poll cheers TJ done and dusted
Posted: Wed Nov 21, 2007 8:45 pm
by aroma
njv6 you know my number if your pajero will make it this far
pr will ring tomorrow from work (i'm tight)
all others thanks and will give hitech a ring (I think)
THATS DANGEROUS