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| To: | <[email protected]> |
|---|---|
| Subject: | LF: Olivia 8 x 250 / psk31 / MFSK 8 503 CENTER BEACON - RUNNING NOW - 1615 HRS |
| From: | "Graham" <[email protected]> |
| Date: | Sat, 3 Jan 2009 16:25:14 -0000 |
| Importance: | Normal |
| In-reply-to: | <00cc01c96dbb$35785400$0301a8c0@mal769a60aa920> |
| References: | <285F98C95F064AA8B5B6C559814191EC@ns94d01ae4d850> <[email protected]> <[email protected]> <775310DAF69C464DB828117B1D6D2E15@Black> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <23CE077F929444939EDA62569064E6E9@AGB> <00f001c96d13$ed597980$0301a8c0@mal769a60aa920> <00cc01c96dbb$35785400$0301a8c0@mal769a60aa920> |
| Reply-to: | [email protected] |
| Sender: | [email protected] |
Follow on from last night , As the olivia system transmits tones in parallel it requires a linear system, however , MFSK is a single tone phase continuous system , I am using three applications of multipsk running on the same pc in beacon mode 8 tones are selected on the two modes psk31 is added as a reference signal and is not expected to print as reliably All 3 modes are the same peak power level , set at the agc threshold .. about 10 watts per system at the moment . there may be a small change in level as each mode starts and stops , the differing beacon lengths' are resulting in the tx windows slowly shuffling. Note , the station is in continuous TX due to vox audio drive levels producing alc preventing the power levels to be normalised Running 3 mode beacon Dial set 502 khz usb 1000 hz center olivia 8 x 250 hz 1250 hz psk31 1500 hz MFSK 8 Reports welcome Graham G0NBDIo83LK |
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