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| To: | "[email protected]" <[email protected]> |
|---|---|
| Subject: | Re: LF: Re: Frequency Stability |
| From: | Chris Trayner <[email protected]> |
| Date: | Sat, 19 Mar 2011 21:13:07 +0000 |
| Accept-language: | en-US, en-GB |
| Acceptlanguage: | en-US, en-GB |
| In-reply-to: | <3D88D5AFC0094751A8CA041C9700D50E@JimPC> |
| References: | <D747086FAE0644ABA22E9087CEE71EAF@lindavideo> <D2E1F496D4EA447DBFB9A7A1E1EBF115@home2361108df7> <[email protected]> <3D88D5AFC0094751A8CA041C9700D50E@JimPC> |
| Reply-to: | [email protected] |
| Sender: | [email protected] |
| Thread-index: | AcvmenHUCWO52QpRQLGtTMv4BJne2A== |
| Thread-topic: | LF: Re: Frequency Stability |
> It seems the > 198kHz carrier has some kind of cyclical drift in phase which occurs over a > period of a minute or two Actually, for your communication purposes, do you need a stable frequency? If Tx and Rx both lock to BBC Radio 4 or MSF or whatever, it doesn't matter if it drifts. Both amateur Tx and Rx drift together, so you can still have a very narrow-band filter. You could call it LOWFUSS - LOW Frequency Unintended Spread Spectrum ;-) 73, Chris G4OKW ----------------------- Dr Chris Trayner School of Electronic & Electrical Engineering, The University of Leeds, Leeds LS2 9JT, United Kingdom Tel: +44 113 34 32053 Fax: +44 113 34 32032 |
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