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| To: | [email protected] |
|---|---|
| Subject: | Re: VLF: Re: Detections of 5 microwatt transmission |
| From: | Jacek Lipkowski <[email protected]> |
| Date: | Sun, 17 Oct 2010 20:22:59 +0200 (CEST) |
| In-reply-to: | <001101cb6e02$e26c7620$0401a8c0@xphd97xgq27nyf> |
| References: | <[email protected]> <2C4BE56C4BAB4EB984EBC865A2BBC338@Black> <[email protected]> <84762FB94EEB4248987AE5E44EBD03A8@JimPC> <001101cb6e02$e26c7620$0401a8c0@xphd97xgq27nyf> |
| Reply-to: | [email protected] |
| Sender: | [email protected] |
On Sun, 17 Oct 2010, mal hamilton wrote: This looks like a lot of trouble for no real practical purpose, other than maybe get a glimpse of a carrier an odd time on 8970 Kcs The possibility of a real time QSO on this band over any distance looks remote. In all it seems a lot of effort for little reward. Mal, take a look at Stefan's signal at 904km: http://www.lipkowski.org/~sq5bpf/dk7fc_20101002/ the shorter lower frequency dash is abt 720s long, a 120s dash would still be detactable. so DFCW120 is practical at 904km distance. DFCW 120 is considered a practical QSO mode by many. btw Mal, maybe you should try your luck in transmitting with your big antennas. get a stable frequency generator, put up a carrier, and give us a chance. you might be surprised at the results. VY 73 Jacek / SQ5BPF |
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