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Monkeyboi

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Monkeyboi last won the day on May 17 2014

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About Monkeyboi

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    D.I.Y. Audio Enthusiast

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    Bakers Hill
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    Australia

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  1. Monkeyboi

    The wonderful NBN.

    @Wimbo I just want to publicly apologise to you and the other members of this forum for being an utter prick. I genuinely misunderstood your reply and took it completely out of context and for that I sincerely apologise. I know it's no excuse but in trying to avoid some serious problems at home I thought I could distract myself from those issues by finding things of interest in these forums. Sadly and ashamedly I left my manners at the door and in the process also left my brain there too. 😞 I should have responded to your PM earlier and called to discuss things. I am sincerely remorseful and hope that my errant behaviour won't prevent us from future fruitful discussion. I hope you understand and perhaps eventually forgive. I have always valued your input to discussions here and would look forward to future interaction. Thank you. Cheers, Alan R.
  2. Monkeyboi

    Isolation Transformer

    Please ensure the metal case is earthed securely with the yellow/green earth wire coming from the mains input side. The earth should be crimped or soldered securely onto a full loop lug that is securely attached to the case with a shake proof washer and double nutted or use a Nyloc TM nut so that the lug can't possibly become loose. You can extend the earth connection to other parts of the circuit thereafter. Cheers, Alan R.
  3. Monkeyboi

    DIY audio: what are you building?

    Nice neat build there. Cheers, Alan R.
  4. Monkeyboi

    Ground wire connection

    If your spade connector looks like this you could buy a female connector and crimp a suitable length of wire to it. A suitable female connector (albeit not specifically intended to mate with this lug) can be used if you bend the forks in slightly and with reasonable force insert it into the female connector to establish a sound connection. The female connector will need a stranded wire crimped into it. You could get away with using pliers to achieve this if you don't have access to the correct crimping tool. It's not as if you are passing Amperes of current through these connectors. The colour of the insulation on the connector determines the gauge of wire intended to be crimped into it. Cheers, Alan R.
  5. Monkeyboi

    The wonderful NBN.

    Here is the International network map for a well know Australian ISP showing their links to the rest of the world as well as their internal domestic links. As you can see that some have international capacity in the Gbs/s range, but it is a mere fraction of the combined gross bitrates to all of their customers. Whilst for general web-surfing and email this is probably entirely adequate it falls short in capacity for those customers wanting higher bandwidth streaming of say 4k UHD video. It might be argued that a lot of this can be obtained locally but I know an awfully large number of people who have set up VPNs to the USA just to get content from Netflix which isn't yet available from the Australian network. Cheers, Alan R.
  6. Monkeyboi

    The wonderful NBN.

    Yep, not many NBN Points Of Interconnect, and not all providers have access to all of them except Telstra IIRC. At last count there were 121 of them, but I stand corrected if this number has increased. Cheers, Alan R.
  7. Monkeyboi

    The wonderful NBN.

    I think the biggest bone of contention might be the limiting nature of the backbone infrastructure and the bandwidth of the "pipes" in and out of the NBN Points Of Interconnect to service providers and links to overseas providers. All very well having a very high speed link between the end user and their service provider in the Gbs/s capability but if the "pipe" from the service provider to the outside world is limited it seems pointless to me unless all the content you want is coming directly from your own service provider's local server. IMHO, I think the NBN and the issues of data transfer in general in Australia has a bit of maturing to undergo. We potentially have the capability to build a first class communications network. It will take time and capital but most importantly a recognition that we will eventually if not already need that infrastructure in place. Easy and relatively economical to provide in the highly populated centres of our capital cities but no so in many rural and remote areas of Australia. Australia is frequently criticised for its telecommunications infrastructure deficit because it is compared with many other countries with much higher population densities and smaller service areas. I recall the days when we probably considered ADSL at 1.5Mbs/s to be "all you will ever need", but now it has become all too apparent that even 100Mbs/s isn't enough for some consumers. I guess bandwidth appetite is a little like living to your means. We use what's available to us. Cheers, Alan R.
  8. Monkeyboi

    The wonderful NBN.

    I can't say yah or nay with any certainty Dave. My inside sources don't even know for sure. All I know is at this stage there isn't any plans to augment the FTTN infrastructure, but rather to pursue the FTTC route instead. I believe the FTTN as we know it today was conceived as a quick fix without the need to significantly professionally develop an existing workforce with as much fibre skills as say the FTTP would have required. Most copper cable faults and premises wiring changes could be easily done by an existing workforce skilled in that area. Anyone who can diagnose an ADSL fault can easily apply the same skillset to VDSL2 technology. Likewise any licensed cabler worth his salt with the appropriate endorsements should be able to easily tackle any premises wiring issues. In hindsight which is only really useful if you were privileged to it before the event, we could have either continued to pursue FTTP which is infinitely and cheaply upgradeable or FTTC which has most of the virtues of FTTP but without the expense or difficulty of hauling an optical fibre cable into the premises. Cheers, Alan R.
  9. Monkeyboi

    The wonderful NBN.

    Sadly Dave, more than most people realise. NBN's FTTN roll-out is largely based on what was Telstra's distribution or "O pair" network which for the benefit of other readers is from a termination pillar installed in the street which used to and in some cases still does provide an interconnect point between the Main cable (M pairs) coming from the local exchange to the pillar which services a Distribution Area (DA). It can easily and often does extends for kms beyond the DA pillar. It's important to point out that the distances referred to are those the cable route takes, not a radial distance from the NBN node. Many premises are serviced within a DA. Whilst some will be within 400m of the pillar (assuming a co-located NBN Node) these end users are likely to realise downstream speeds of up to 100Mbs/s assuming no line faults or premises wiring issues. From about 400 - 800 metres out the speeds steadily decline due primarily to line attenuation but there are other mitigating factors such as RF interference and crosstalk issues which only get worse the longer the line is. I know someone who is in a FTTN area and is 800m from the node and realises speeds of 45Mbs/s in an area which is almost 100% NBN. Beyond 800m the speed rapidly declines to a mere 12Mbs/s at the 1100m mark. In a typical DA there are premises further out than 1100m and these can't be serviced directly from the main node. If the premises it further than 1100m away from the node the only alternatives are - NBN installs a Compact DSLAM which can only provide a maximum of 48 channels closer to the customer premises they intend to service. This isn't NBN's preferred option because the cost per service is significantly higher than a normal FTTN node cabinet. Also customers are "hard wired" and not jumpered to their respective ports like a node is therefore maintenance costs are higher in maintaining services in the event of equipment or cable failure. Customers too far out or with technologies unsupported by the current NBN infrastructure will for the meantime have to stay with their current technologies (ADSL, ISDN etc) or use some alternative technologies such as 4G mobile. Why the 1100m limit? In the current DA configuration the copper cable has other services on it which interfere with the VDSL2 signal that FTTN uses. Examples are ADSL which uses an almost identical modulation method and occupies some of the same frequency range that VDSL2 does, ISDN uses a different line code but signals partially overlap the VDSL2 signals and pair gain systems such as SCAD over copper. Once these other services are discontinued, then NBN will be able to up the transmit power of the VSDL2 signals and therefore be able to increase the transmission distances. In the meanwhile we are stuck with the limit. However I think it's all going to be a fait accompli as the previous PM admitted in a press statement that in hindsight FTTN was a mistake and will become a redundant technology. Cheers, Alan R.
  10. Monkeyboi

    The wonderful NBN.

    Uncalled for and childish response. I could have said that I expected better from you but it would be a waste of time given your modus operandi is not to debate the facts rather to attack the individual for having an opposing view or opinion to that of yourself. I'm surprised that you didn't have another go at me whilst you were on a roll and called me a "ME Fanboy!!" seeing as I have ME gear as well. Maybe you should have chucked in "Tascam Fanboy" or "CEC Fanboy" seeing I have this gear as well? 🙄 Information was provided for the benefit of those who like a lot of the general public don't know the technical merits of one technology over the other when it comes to the NBN. I was actually empathic to your predicament but I guess what goes around comes around.
  11. Monkeyboi

    The wonderful NBN.

    Actually FTTC is better than FTTN. Why? The optical fibre is reticulated to a pit right in front of your house. This means the only copper path is from that pit into your house and to the socket to which the NBN equipment is connected is relatively short compared to most FTTN connections which include the street cable. This reduces transmission losses because the frequencies used on the copper part are very high and subject to significant attenuation, noise pickup and crosstalk. In FTTC these signals are only over a short distance (pit to your socket) and on your own cable (in most installations) that isn't shared with other users. Therefore, unlike FTTN, the chances of you attaining speeds of up to 100Mbs/s (possibly more in the future) are much better than a copper pair 1.1km from a roadside node cabinet where currently the expected maximum speed is a mere 12Mbs/s downstream and 1Mbs/s upstream. Speed and error performance on FTTN technology depends on many factors. These include but aren't limited to the following - Distance from the node cabinet. Currently the maximum distance is 1.1km with mixed services still active on the distribution cable. The physical and electrical condition of the distribution cable between the NBN node and the pit outside your property boundary. Field work practices which vary from excellent to why did they even bother. The condition of your copper cable lead-in. * The condition and topography of your house telecommunications wiring connected directly to your lead-in cable. * Well this MTM (specifically FTTN and FTTB) was proposed by him when he was the shadow minister for communications which became an election platform issue. We were promised three things regarding the NBN and specifically FTTN/B. We would get it sooner, it would cost less and it would be more economical. Hang on, that's really only two advantages - that's politics for you. 😛 So far we haven't got it quicker, nor cheaper (aka more economically). Instead what we got was a second rate network build around the mostly aging Telstra distribution cable network. It was in less than pristine condition and Telstra knowing full well they would have to palm it off to the NBN for a bargain basement price made a completely sensible commercial decision to pretty much let it go "as is", which to me makes perfectly good business sense. Why put an expensive paint job on a rusting body? Cheers, Alan R.
  12. Monkeyboi

    The wonderful NBN.

    The most probable reason (but not the only one and there are exceptions) for the delay is your area my have been serviced with Optus HFC rather than Telstra HFC. I know in the beginning of the roll-out in HFC serviced areas, NBN weren't very keen on acquiring the Optus HFC network. There may have been technical reasons for this. I do know that in some HFC areas NBN has used the Optus HFC network to reticulate services to customers (end users). NBN HFC services use a different part of the frequency spectrum and a different modulation plan (DOCSIS 3.1) to existing services so your existing HFC broadband and cable Pay TV can co-exist on the same coaxial cable servicing your premises. (the simplified layperson explanation). As much as I'm a FTTP fan I see the current value in recycling the existing HFC networks as in most areas the existing (buried) infrastructure is still viable and under DOCSIS 3.1 could support speeds of up to 1Gbs/s. That has been my criticism of the NBN all along. It's a publicly owed network yet the information and its timing to Joe Public (the taxpayers who funded the construction of it) is IMHO less than satisfactory. IMO if you are funding a public works project you have the right to know how and where your money is utilised. I am a firm believer that truthful timely information is better than no communication at all. As much as we hate the "NO" word sometimes, been informed is much better than the mushroom syndrome. Cheers, Alan R.
  13. Monkeyboi

    The wonderful NBN.

    There may be various logistical reasons why you and your neighbour missed out. You're on the wrong side of the street. NBN service areas often don't match up with the existing Telstra network areas. You and your neighbour are connected on a copper cable installed in the street that is directly buried in the ground rather than run through a conduit or duct. If the street cable is in a conduit (not the conduit on your property) there is a possibility it's too small a diameter for NBN to draw their optical fibre cable through it with an existing copper cable in-situ. NBN have incorrectly estimated the number of services required in your street or area which has resulted in poor planning of the FTTC. In the case of 2 and or 3 above, NBN will need to provision a conduit in which to haul their optical fibre cable through. So if they say 2020 that's a distinct possibility. I empathise with your predicament. Cheers, Alan R.
  14. Monkeyboi

    Laser Discs... Why so expensive? Hidden Gold?

    I used to collect LD for many years when they were all the rage. As previously remarked the PQ and SQ were much better than VHS or Beta at the time and on par with S-VHS. Only had a very few titles affected by the dreaded Laser rot. My player is a Pioneer CLD-1850 which is a NTSC / PAL machine. When Dolby Digital titles started to hit the market I modified my player to provide Dolby Digital AC-3 RF output which I fed into my Sony TA-E9000ES processor pre-amp to do the decoding. One of the few high end pre-amps to have this feature. Oh the nostalgia. Cheers, Alan R.
  15. Monkeyboi

    Recommendations for a soldering station

    There's only one way to find out. If you have enough cable make up two pairs slightly longer than you need them to be. One using method 1, the other using method 2. Subjectively trial each type and make a decision from there as to which one you like the most. If say you prefer method 1 then you can easily re-terminate the other leads by recycling the cable and the connectors. Works for me. Cheers, Alan R.
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