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New video about S-video modification on Issue two 48K Spectrum.I just finished an s-video modification on an Issue two 48K Spectrum so I made a video about it. Most of the technical details are in the video; if y…
... low/normal levels of electrical interference, any of the cables you ... practice, the quality of the signal from the Spectrum has more ... -
How to boost the wi-fi receiver power, please?My Internet connection is playing up, and the lady next door says I can leech off hers until mine is sorted out, but (when in my house) my laptop kee…
... , it can result in wifi signal collisions, and dropped connections.[/QUOTE ... just be seen as RF interference).
There are lots ... -
'Interesting' Issue 2 modSo I've been lurking on this forum for a while and I've got to the point where I want to see if I can repair a speccy.. so I bought me a 'broken' one…
... ULA, there is no video signal information. However, the modulator (if ... still produce the UHF carrier signal. Some TV's may therefore ... by a burst of smaller interference like squares, followed by a ... -
Wifi leeching questionMy internet connection had been slow for a few weeks so I upped the security to WPA2 from WPA, and I changed the pass key. My speed then returned to …
... phone and look at the signal strengths and channels all your ... cooperate rather than just causing interference/collisions like if on overlapping ... -
4G interference with FreeviewOur telly picture is really breaking up bad. Has been for about 2 weeks now. Y'know, heavy pixelating, black screen, banding and audio squeaking. …
... very strong signal comes up in the passband. If 4G interference is ... -
What is the Sinclair ZX Spectrum Vega and what does it mean?Just stumbled upon this Indiegogo page following a tweet from SpeccyNews [url]https://www.indiegogo.com/projects/sinclair-zx-spectrum-vega[/url] it…
... and chips will suffice. EM interference isn't magic, you can ... have more than one RF signal on its PCB - the serial ... video display. The flash SCK signal will be a nice square ... -
ZX Spectrum+ video ? red on green problemThis is my first post on the forum, so let me introduce myself. I am retired for several years. For 30 years I have been a fan of the ZX Spectrum. I …
... the quality of the video signal from the YUV-RGB converter ... good way of shielding signal wires from interference.
[URL=http ... -
48K colour issuesGentlemen, A friend handed me over a number of 48K machines to service, and among these there are four of them with various flavours of colour iss…
... noise in the chroma subcarrier signal (LM1889, pin 13). Instead ... is modulating the chroma subcarrier signal, and this hides completely the ... begins, where the subcarrier signal is nice and clean as ... yet the fact that the interference is there or not depends ... -
So for my first trick...I'm sure people have already used the AD724 or AD725 on other 8 bit machines, and i know the Harlequin uses the 724, but not seen anyone trying to us…
... the ULA but by the signal processing of the analog input ... the TEA2000 that reduces interference between video signal and colour carrier then ... TEA2000 gives very good composite signal comparable to that of the ... -
What to buy +2, +2A, +2B, +3??Hi all I've always wanted to buy a 128k Spectrum and I've seen some lately in eBay going for cheap. The 128K+ is expensive I understand because of…
... ), to reduce the interference to the composite video signal caused by the ... also affects the composite video signal for no good reason.
Looking for advice on building a HarlequinNew member here. From the US. My first computer was a Timex Sinclair 1000 back in the early 80s (in fact, I got one of the first batches sold in th…
... is the way the video signal is generated in the first ... Speccy introduces all sorts of interference patterns. Plus you get at ...ZX81 Ram pack problemI got recently Sinclair 16k memory expansion for my ZX81, but for some reason it will not work. The computer itself is operating normally without hi…
... related to the loss of signal and often very unstable ... image gets interference (flickers etc) and finally completely lost signal after 15 ... a while, then the signal is lost again and so ... but the problem with interference and loss of signal, becoming a regular ...Spectrum 128k +2 video issueHi Guys, I just got a Spectrum 128k +2 from ebay. It came with its power supply and the scart video cable. The machine is working pretty good but …
... to be clear concerning the interference it is a quite nasty ... a non-existing composite video signal (so you get noise = snow ...New video about S-video on Spectrum 128 / +2I just made a video about an S-video modification on a Spectrum +2. Most of the technical details are in the video; if you have any questions about i…
... luminance input has the chrominance signal added to it and ... a combination of the luminance signal and the modulated FM ... frequencies separate. The result is interference in the TV picture during ... RF modulator receives a chrominance signal only. It's still ...Interference when using modern PSUMy 48k revision 3 spectrum with a basic 1 wire composite video mod works perfectly with the original power supply. However When I use a modern regula…
... kinds of unwanted wide band interference. Including on the output cable ... be in the baseband video signal range (from 5Hz up to ... use), then a composite video signal may well be affected :(
ZXBaremulator v3.H(ikoki) BetaHi, Thanks to a Recreated ZX kindly donated by Hikoki, I've added support for it to ZXBaremulator. Now two keyboards can be connected to the PI…
... /> # uncomment to increase signal to HDMI, if you have interference, blanking, or ...New video about S-video modification on Issue two 48K Spectrum.I just finished an s-video modification on an Issue two 48K Spectrum so I made a video about it. Most of the technical details are in the video; if y…
... something fishy regarding the Chroma signal now. It works with a ... still works, but it has interference and/or the level is ...Composite out, but without a mod?Through [url="https://faqwiki.zxnet.co.uk/wiki/ZX_Spectrum_16K/48K_edge_connector#Video_Outputs"]this[/url] page, it sounds like I can keep my ZX Spe…
... is accurate, that the cvbs signal available at the expansion connector ... of circuit to match the signal with the 75 ohm input ... may be a source of interference.
I think I ...Ferrite beads in power cords?So I am seeing these modern psu units with ferrite beads on both ends, just like this: [url=https://imgbb.com/][img]https://i.ibb.co/PFQT4n1/9fd19…
To get into a real debate about interference, I fully recommend joining a ham forum and start a post saying how you think those BT routers that transmit there signal through houses via the mains wiring are the best invention ever. :))Ferrite beads in power cords?So I am seeing these modern psu units with ferrite beads on both ends, just like this: [url=https://imgbb.com/][img]https://i.ibb.co/PFQT4n1/9fd19…
... happened because there was enough signal strength, and the Spectrum's ... way as you hear the interference from a mobile phone).
signal as if it were AM ... the envelope of the RF signal. It's absurdly easy to ...Ferrite beads in power cords?So I am seeing these modern psu units with ferrite beads on both ends, just like this: [url=https://imgbb.com/][img]https://i.ibb.co/PFQT4n1/9fd19…
... happened because there was enough signal strength, and the Spectrum's ... way as you hear the interference from a mobile phone).
48k Spec with composite video mod, screen adjustment possible?I've had a 48k Speccy with a composite video mod for a few years now, and although it works perfectly otherwise, the screen isn't centered correctly …
... missing) with odd NTSC-like signal effect and there's no ... it was mixed with NTSC signal, like the yellow-tinted screen ... boards and the audio carrier interference ..5Ghz Video Transmitter - no more video cables.Just thought I'd mention... While waiting for my new LCD panels to arrive, I wanted to test the new Speccy that arrived, that wanting to test it, I r…
... 't encode or decode the signal, they just modulate it in ... ... It just carries whatever. Signal in = Signal out. There's some noise ... result - caused by anything like interference. So lag at the speed ...Two new spectrums arrived. One no video.Got a +2 and a Toastrack arrived today. Toastrack was actually in good condition, little wear, though a little dirty. Worked well on first power up, …
... the video signal ?? if using composite there is normally interference from the ... audio sub carrier signal that is ...The sound quality (or not) of AM radioInspired by [url=https://worldofspectrum.org/forums/discussion/comment/995799/#Comment_995799]this comment about the BBC's methods of beating pirate …
... stations is called co channel interference).
To enable a ... that a amplitude modulated (AM) signal requires significantly more power as ... the frequency band for the signal, but the spacing between stations ...Converting files to WAV?Hi, A while back I was trying to find a way of converting emu files (z80, tzx etc) so that I could play them on a real speccy. Well, I discovered t…
... which will output a loading signal through your soundcard so you ...Help making TZX filesHi. I've just found about 10 games that are missing perfect copies and i've tried using maketzx but i can't do it. When i run it it says 'searching …
... 't know why. The tape signal is good and loud and ...PLEASE HELP MEI just got my ZX Spectrum out of its box after being in the loft for a number of years and tried to play a few games but when I turned it on and tune…
... all I got was some signal. It showed a border and ...+3 RGB OutI've jus get an +3 that works fine, but i would like to use my CPC RGB monitor with it. Does anybody know something about if it's possible or not?. I…
I've jus get an +3 that works fine, but i would like to use my CPC RGB monitor with it. Does anybody know something about if it's possible or not?. Is possible to use this signal into a TV with a 21 pin Scart?
Thanks in advance.spectrum problemshello, I just recieved a spectrum 48k on ebay [img]/__forums/images/smiles/icon_smile.gif[/img] (I live in the U.S.) I have a transformer to conver…
... the normal white with no interference.
I can though type ...
