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| Subject: | Re: LF: Re: 137.5kHz WSPRing - reports appreciated |
| From: | Roger Lapthorn <[email protected]> |
| Date: | Sat, 29 Jan 2011 19:08:56 +0000 |
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Thanks Jim (and Chris) for the WSPR reports. My very simple 137kHz transverter is now working reliably in one unit, although I am losing about 3dB in sensitivity at the moment on RX because of the simple QRP switching arrangement. Despite this, it is copying all the active WSPR stations this evening including the PAs and the SM station. I'll attend to this tomorrow. Power from the unit is about 8W and the low ERP is due to the loop inefficiency. Next stage must be to improve the antenna and put the transverter in a box and put the schematic on my website. 73s Roger G3XBM On 29 January 2011 19:00, James Moritz <[email protected]> wrote: Dear Roger, LF Group, -- g3xbm-qrp.blogspot.com/ www.g3xbm.co.uk www.youtube.com/user/g3xbm G3XBM GQRP 1678 ISWL G11088 |
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