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Failed to connect to MySQL: (1203) User howardkn already has more than 'max_user_connections' active connectionsPath: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: Ralph Mowery Newsgroups: sci.electronics.design,sci.electronics.repair Subject: Re: Francophones Date: Mon, 23 Dec 2024 12:58:36 -0500 Organization: A noiseless patient Spider Lines: 19 Message-ID: References: <84fbmj56f92g7uspk4h5e04qj1vgri925o@4ax.com> <1r4vq2s.1tmc4wm1iuvgp4N%liz@poppyrecords.invalid.invalid> <1r4wrcj.5sbtfti811qyN%liz@poppyrecords.invalid.invalid> <95idmjpun3fqc5d4ud98havpjs4qo2iqnk@4ax.com> <1r4ynfn.b59oq9u83h8qN%liz@poppyrecords.invalid.invalid> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Injection-Date: Mon, 23 Dec 2024 18:58:38 +0100 (CET) Injection-Info: dont-email.me; posting-host="a1ea840013c262c5ca4d170e203ebe7f"; logging-data="1318830"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX19++3SEgJ+JP/0Ogg/01py64oEw1sOdsuY=" User-Agent: MicroPlanet-Gravity/3.0.4 Cancel-Lock: sha1:f2tL8Y9SsFHWdJ0zVmtXK4KI3ys= Bytes: 2471 In article , noreply@ademu.nl says... > > On 2024-12-23 16:22, Ian Jackson wrote: > > For many purposes you can ignore the difference between the 50 and 75 ohm impedances (and 60 if you ever come across any). > > However, be very aware only BNC 50 and 75 ohm connectors are mutually mechanically mateable (yes - they really are!). I don't know if any others that are. > > Not recommended. > The center pin differs, a 50 Ohm BNC pin is thicker and may damage a 75 ohm BNC. > I'm cautious, most of my below 1 GHz equipment is 75 Ohms (from CATV company), the rest is 50. > > > It is the N connector the center pin is different. The BNC pin is the same. It is the ammount of dialectric (insulation) in the BNC that makes it a 75 or 50 ohm connector.