Return to KLUBNL.PL main page
| To: | <[email protected]> |
|---|---|
| Subject: | LF: Re: "harmonics" |
| From: | "Markus Vester" <[email protected]> |
| Date: | Sun, 20 Dec 2009 18:20:32 +0100 |
| In-reply-to: | <005301ca8167$ac452e30$8cd9160a@EFREMOV> |
| References: | <38A51B74B884D74083D7950AD0DD85E828ACB3@File-Server-HST.hst.e-technik.tu-darmstadt.de> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <F115BE2FFFB942B48FA14864D7293A44@JimPC> <[email protected]> <[email protected]> <[email protected]> <005301ca8167$ac452e30$8cd9160a@EFREMOV> |
| Reply-to: | [email protected] |
| Sender: | [email protected] |
Dear Andrey. here this is happening because the receiver's gain control or noise blanker reacts on DCF39 or HGA22 telegrams. They normally occur every 11 seconds. The receiver then modulates all signals in the passband, and gives them a set of sidebands 1/11s = 0.09 Hz apart. Switching off AGC and NB will remove the sidebands on the signals completely, but at the cost of an increased background from the original DCF FSK sidebands. Kind regards, MArkus (DF6NM) ----- Original Message ----- From: "Andrey rn3agc" <[email protected]> To: <[email protected]> Sent: Sunday, December 20, 2009 12:28 PM Subject: LF: "harmonics" Hello LF, At strong levels of a signal such "harmonics" are formed here. Somebody knows the reason of formation of these "harmonics"? 73 Andrey |
| Previous by Date: | LF: test transmission, Mike Dennison |
|---|---|
| Next by Date: | LF: test this afternoon, Mike Dennison |
| Previous by Thread: | LF: "harmonics", Andrey rn3agc |
| Next by Thread: | LF: Re: Re: "harmonics", Andrey rn3agc |
| Indexes: | [Date] [Thread] [Top] [All Lists] |