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| To: | [email protected], [email protected] |
|---|---|
| Subject: | LF: EbNaut test transmission |
| From: | Andy Talbot <[email protected]> |
| Date: | Tue, 17 Nov 2015 14:04:15 +0000 |
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Mainly as a system test, I'm radiating an EbNaut signal. Details are Frequency 137780.000 +/- 1mHz (DOCXO only for this test) Coding 8K19A Symbol period 0.5s (2 symbols / sec) Message length is 9 characters consisting of a callsign and the abbreviated name of a well-known cockatiel Transmission is on every 10 minutes (although the message itself is just under 6 mins - there is about 4 of plain carrier) Keying is using my soft Gaussian 10ms ramp and pleased to say there is not the slightest click or any sound from the PA or loading coil when it transitions. The PA is set to its minimum setting and in this wet weather the increased antenna resistance is such that that means about 200 Watts of RF, and probably no more than 50mW ERP Andy G4JNT |
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