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Post by quaysider on Jun 26, 2016 16:06:57 GMT
This may be (another) of my daft questions, but can I wire two coax cables up to one TV ariel to use for TV AND Radio? or should I use a dedicated one (ariel that is) for each.
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Deleted
Deleted Member
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Post by Deleted on Jun 26, 2016 16:49:23 GMT
This may be (another) of my daft questions, but can I wire two coax cables up to one TV ariel to use for TV AND Radio? or should I use a dedicated one (ariel that is) for each. Yes but you will lose some gain due to the split and extra connection. You can buy purpose built splitter boxes or better still go for a TV amplifier with two outputs to increase the gain. A TV aerial isn't ideal for an FM radio as ir's not tuned for such a purpose. However it will work because any aerial hanging high up outside a boat or house is better than an internal aerial much of the time. |
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Post by quaysider on Jun 26, 2016 17:23:00 GMT
cheers - given that I'm trying to "finalise" the hidden wiring before the lining goes up, I might just as well bung another cable in then and use separate ones rather than add another drain on the batteries.
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Post by smileypete on Jun 26, 2016 17:30:40 GMT
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Post by quaysider on Jun 26, 2016 18:12:47 GMT
That never occured to me - I'll put a run of that down each side from front to back (cupboards at both ends in both sides) and have a bit of string down them to allow for pulling "whatever" through in the future. I'm also looking at putting the solar mc4 extension cabling in now to avoid having it on the outside later - I Can't find one lone enough though as I want it go go "in" at the starboard bow. IS 10awg "thick" enough for the full run though? |
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Post by peterboat on Jun 26, 2016 18:20:04 GMT
That depends on how many panels you will be having and what volts and amps you will be running.
I have nearly 1 kw of panels on the roof and its all in 4mm apart from where it comes into the wheelhouse then it 10mm to the controller
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Post by smileypete on Jun 26, 2016 18:45:43 GMT
I'm also looking at putting the solar mc4 extension cabling in now to avoid having it on the outside later - I Can't find one lone enough though as I want it go go "in" at the starboard bow. IS 10awg "thick" enough for the full run though? Well 10 AWG is just over 5mm 2. If it's between panels and controller then it'll handle up to 15amps no problem (from 'mm 2 = amps divided by three' rule of thumb) For cabling between controller and batts, as Peter implies the cabling needs to be sized to keep volt drop to a reasonably small minimum too. Buying lengths of 'trirated' cable off Ebay can get the cheapest prices. |
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Post by peterboat on Jun 26, 2016 19:41:25 GMT
I have 3 panels in series X 3 then all paralleled back to the wheel house where they join together and go down to the controller all works well and I regularly see 60 amps on the NASA BM2
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Post by Telemachus on Jun 26, 2016 20:42:01 GMT
Aerials: you can use the same coax for radio and TV but normally you would also use a splitter at both ends due to the big difference in frequencies involved. Passive splitters have some losses even at their pass frequency so, bearing in mind the short run of cable on a boat, I'd use seperate cables. We don't have a radio aerial, if we want radio we get it over t'internet.
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Post by peterboat on Jun 26, 2016 21:26:30 GMT
I just have for an aerial a stick on the side of the boat jobby from maplins, about 40 squids uni directional seems to work well, and can go on the campervan as well. The van also has a fancy radio/tv/satnav etc etc, which works from a power aerial on the screen does work well for both as well technology great eh
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