View Full Version : What is a 75 Coaxial Cable, and where do i get one???
Ok had an email from Toshiba, i need a 75 Coaxial Cable, what is this, and where can i get it.
Trying to link my Toshiba 330 to my home cinema, with DTS
Thanks
It's just a normal "Coaxail" cable mate:lol: the "75 "probably stands for 75mm.
I my coaxial from Richer Sounds for £20.
The 75 probably means its impendance, i.e. 75ohms I'd say
nwgarratt
09-09-2003, 09:48
The 75 probably means its impendance, i.e. 75ohms I'd say
That's right, but any phono cable will do.
No it won't do, because any old phono cable isn't 75ohms!
JVC do a decent enough coax digital cable, shouldn't be more than a £10 from pcworld/dixons etc.
Or you can get better ones from hifi shops...but tbh either the digitial signal gets to the other end or it doesn't, so don't go spending money on expensive coax cables.
Underscore
09-09-2003, 10:28
75 Ohm cable is video cable - phono cable is 50 Ohm. The S/PDIF spec technically requires 75 Ohm video cable. However, as has been pointed out, you are not likely to suffer any problems with using 50 Ohm cable, especially if the run is short. I'm currently using half of an interconnect provided free with my tuner until I get around to assembling a proper 75 Ohm link - works just fine!
HTH,
_
nwgarratt
09-09-2003, 11:38
No it won't do, because any old phono cable isn't 75ohms!
I know that, but I have used phono cable just fine for years, without any problems.
craig1912
09-09-2003, 12:14
I use half a phono cable with no probs.
The resistance may be something you can live without, I'm not sure, but decent 75 ohm video cable (like Van Damme) is typically better shielded than bog-standard coax. Making runs alongside power cables often requires shielding from interference.
Just bought some myself from maplins in leeds at £1 per metre and made myself some component cables :)
I am pretty sure that satalite coax cable is the same stuff and offers good shielding at a lower cost
Ok a little mixed up at the moment.
I dont need Picture, i need DTS sound, got the 5.1, just need DTS
So should i go to maplins and buy a meter, or go to a 'Hi-Fi' shop and ask there?
also would it be worth upgrading the yellow/Red/White cables i had with the Tv, i used them to conect to my home cinema, is there a massive diff, witht the picture/sound quality.
Thanks everyone so far, for theyre input :thumbs:
go to either and ask for a digital coax cable, which will be one cable with phono plugs on the end, you needs this or an optical cable for DTS(well any digital signal between amp and player)
If you are using composite (thats the yellow phono you mentioned) then yes upgrading to SVideo->RGB Scart->Component in that order will give the best picture, most can only get RGB Scart, because mainly plasmas, projectors and US tv's use component.
Sorry about that herbal, didnt read your post properly :ignore:
U could make it from what i said costing £3 but i would pop into the hi-fi retailer they will point you to one :)
Ok thanks people.
Ok a RGB Scart - is a scart at one end, with the cables at the other? Correct, howwould i fit this to my Dvd player as it has only one scart lead??, I only use the Yellow/White for Sound, for my Dvd player to my Other Dvd/Home Cinema
Hope this makes sence, as i'm a little mixed up.
Gonna speak to someone about it, in a shop mee thinks
Originally posted by craig1912
I use half a phono cable with no probs.
don't you mean half of a pair (stereo) :nuts:
Originally posted by Herbal
Ok thanks people.
Ok a RGB Scart - is a scart at one end, with the cables at the other? Correct, howwould i fit this to my Dvd player as it has only one scart lead??, I only use the Yellow/White for Sound, for my Dvd player to my Other Dvd/Home Cinema
Hope this makes sence, as i'm a little mixed up.
Gonna speak to someone about it, in a shop mee thinks
Nope:)
An RGB is a video type carried over a Scart cable (which is scart both ends)
Scart cables also carry svideo, composite and analogue audio all at the same time (which is why they have a large number of pins)
They are used between DVD Players and the TV.
So to connect your DVD player to the TV ask the shop for a 'fully wired scart cable' (you can stupidly get scarts with pins missing and so they don't carry everything)
To connect your dvd player to the amp ask the shop for a 'digital coax cable'
menalaus
10-09-2003, 10:40
in order for the audio signal to reach your amp from the dvd in its 'purest' form, so you hear the best sound available from your amp (i.e not digraded by RF interference, judder etc) you really do need a cable designed for that job.
for the audio signal you need a digital coaxial cable
this is a good one http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=3045029938&category=295
you can also use a optical cable to carry the signal but at the budget end of the market these can corrupt the signal and so distort the sound you hear
in order to get the best picture you need a decent cable as well (the same principles about interference also apply here)
the picture you see is a mix of the primary colours i.e Red Green Blue hence RGB. you get the best picture if these are separated on there way to the screen and are not corrupted by other signals(i.e audio)
so component is the purest because the Red Green Blue information travels down its own shielded cable
for most of use though a scart cable dose the job well enough
sorry havent got a link but do a shearch for Thor Scart leads as these a the best of the budget scarts IMO
RGB scarts are the best becuse they only have the RGB sigs running down them (not audioso purer signal quality) however these start at approx £60 for a decent one so stick with one for £20/30
please throw your composite cable (the feeble yellow one whrere all the signals are mixed, not to be confused with component) in the bin! as these really are the worst and will not do you any favours
Underscore
10-09-2003, 11:01
Originally posted by menalaus
so component is the purest because the Red Green Blue information travels down its own shielded cable
Actually, no. RGBHV (e.g. 15-pin VGA) is the purest since R, G, B, horizontal and vertical sync each have their own shielded cable. RGB is next, since the syncs are combined with colours. Component comes next as it has three cables, one carrying the luma signal, one the blue chromatic aberation and one the red chromatic aberation. This means that the luma signal - to which the eye is more sensitive than chroma - only has 2/3 the bandwidth compared to RGB. In practice, these, and even S-video with a good cable, are pretty close. Composite is pants by comparison with any of them.
HTH,
_
Ok Thanks Everyone
Can Someone tell me what the diffrence is between a Normal Scart and a Thor Scart cable
http://www.simplydigital.co.uk/Lead_shop.html
Seen this, and the price isnt an issue as long as it's worth the money, and i can tell the diffrence, or will imporve the quality
Also the Phono Cable is there too
cheers Everyone so far, Why do they bother throwing in rubbish leads with expensive equipment i never know
My Tv is £600 Dvd(R1) £80 and Home Cinema/Dvd(R2) £400, all had Cheap cables with them, some didnt have any
The Thor will be better built (ie no cheap plastic covers) and more importantly have better sheilding on each of the wires.
And you want the 'High Quality Digital Phono Lead' :)
menalaus
10-09-2003, 16:21
ok, i was trying not to lose people and give a very, very rough outline (during my coffee break!). i would still say that as a rule of thumb for most budget users with a dvd player and PAL TV
the order of quality would still be
component > RGB scart <> svideo > composite.
by component i ment YPbPr and by RGB i ment Scart RGB. strictly speaking RGB is a component signal and does come in a wide varity of shapes of connectors from BNC down to scart and quality eg RGBHV (red green blue horizontal sync vertical sync)
i do feel that for transfering dvd signals to a PAL TV 'component' is still the best as it are more stable and does not need to be converted back into component inside the telly (like RGB does)
for transfering high res signals eg from scaler to projector then yes i agree that RGBHV is the better option
vBulletin® v3.8.7, Copyright ©2000-2012, vBulletin Solutions, Inc.