Path: ...!2.eu.feeder.erje.net!feeder.erje.net!news2.arglkargh.de!news.karotte.org!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail From: liz@poppyrecords.invalid.invalid (Liz Tuddenham) Newsgroups: sci.electronics.design Subject: Re: AM radio law opposed by tech and auto industries is close to passing Date: Sun, 5 May 2024 07:54:49 +0100 Organization: Poppy Records Lines: 16 Message-ID: <1qt2qzy.q7ux4j1icmegmN%liz@poppyrecords.invalid.invalid> References: <49fhgkxdv5.ln2@Telcontar.valinor> X-Trace: individual.net jRKEF1GscFs+J3aCTVGrBgOfcY+994z1NKfmeB0AEu1X0swtXh X-Orig-Path: liz Cancel-Lock: sha1:3hkUTvuTAGtidQJg+T2YiRjlHZI= sha256:3yFWYYyNxsXEUaOb44C20G7lPIXhAxnqk6SZHVaItCk= User-Agent: MacSOUP/2.4.6 Bytes: 1441 Carlos E.R. wrote: [...] >. The lower the frequency, the more power is needed. Transmitting aerials are less efficient when their length is only a small fraction of the wavelength, hence the need for transmitters that produce lots of VA (with all the losses that entails).. Receiving aerials are similarly affected, but nowadays, with cheaply-available low-noise gain, the long-wave reception limit is usually set by the noise floor of the location. -- ~ Liz Tuddenham ~ (Remove the ".invalid"s and add ".co.uk" to reply) www.poppyrecords.co.uk