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| To: | <[email protected]> |
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| Subject: | Re: LF: OPERA overload? |
| From: | <[email protected]> |
| Date: | Fri, 20 Dec 2013 16:27:12 -0500 |
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StefanOkay ... now trying putting that signal inside the OP or WSPR bandpass with 100% transmission duty cycle and see if it affects your weak signal reception ;~) I was using your '30 dB' to make a point and added a couple + signs ... will get a more accurate measurement for you. On 160 meters I've seen Bob's signal at -20 dBm on a dipole receive antenna ... somewhat less on the beverage receive antenna. Jay----- Original Message ----- From: "Stefan Schäfer" <[email protected]> To: <[email protected]> Sent: Friday, December 20, 2013 3:01 PM Subject: Re: LF: OPERA overload? Hi Jay, Yes yes, i know. Question is what ++ means :-) But it wasn't a complaint to you, Jay.We have DCF 39 here, https://dl.dropboxusercontent.com/u/19882028/LF/DCF39%20in%20488%20mHz.png ... That is already 10 dB attenuated by the LF band filter.73, Stefan Am 20.12.2013 20:25, schrieb [email protected]:StefanOverloaded RX because your signal is 30 dB above the noise in 1 Hz NBW?Try a measured 30+ + dB above the noise in 3.2 kHz BW ... that's the way it is here. If you haven't experienced that get out a signal generator, key it, and inject it into your receiver along with the weak signals in OP or WSPR. Let me know how you make out.Jay |
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