Return to KLUBNL.PL main page
| To: | [email protected] |
|---|---|
| Subject: | Re: LF: daytime WSPR |
| From: | John P-G <[email protected]> |
| Date: | Sun, 08 Nov 2009 17:19:29 +0000 |
| In-reply-to: | <[email protected]> |
| References: | <019f01ca6061$34a80040$0301a8c0@mal769a60aa920> <[email protected]> <01cd01ca6068$54f09a40$0301a8c0@mal769a60aa920> <[email protected]> <[email protected]> <[email protected]> |
| Reply-to: | [email protected] |
| Sender: | [email protected] |
| User-agent: | Thunderbird 2.0.0.23 (Windows/20090812) |
Rik, LF Yes - I was pleased at the results too!I note that now, in darkness, that my active loop is giving much the same s/n results to the vertical/tuned pre-amp, whereas in daytime the vertical/pre-amp was far better. I've seen this before, the active loop's own internal noise limits its useable sensitivity in the day, when extra gain on a passive antenna brings increased sensitivity. At night the external noise dominates in both setups, and the results become very similar. I'm running both in parallel at the moment - spots from GM4SLV are the vertical/preamp/IC718 and from CLOUSTA are from the ALA1530S+ loop/IC-R75. Cheers, John Rik Strobbe wrote: John, amazing.-16dB with 200mW ERP would mean that only 10mW ERP would be needed to get a marginal copy. |
| <Prev in Thread] | Current Thread | [Next in Thread> |
|---|---|---|
| ||
| Previous by Date: | LF: Re: Losses due to ant in tree?, James Moritz |
|---|---|
| Next by Date: | Re: LF: New allocations for Norwegian radio Amateurs, hajo . brandt . dj1zb |
| Previous by Thread: | Re: LF: daytime WSPR, Rik Strobbe |
| Next by Thread: | Re: LF: daytime WSPR, Rik Strobbe |
| Indexes: | [Date] [Thread] [Top] [All Lists] |