To: | [email protected] |
---|---|
Subject: | Re: LF: Neo6M vs Neo7M |
From: | Paul Nicholson <[email protected]> |
Date: | Tue, 11 Jul 2017 06:29:24 +0000 |
Dkim-signature: | v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=abelian.org ; s=default; h=Content-Transfer-Encoding:Content-Type:In-Reply-To: MIME-Version:Date:Message-ID:From:To:References:Reply-To:Subject:Sender:Cc: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=SLMqDTuXAkt9uJTdgy+eeqrSrZ6O2aMr+EDTKEmmKfc=; b=byvxfOihIYhG5ln2d2IkdIKQ6c AcQKsLc99UNQo8jyo4lYRKwm2Qwk0a6tiv4xYRuJ/HqO2ewI1ZTb7o83sABA67AhLzJ7AuuOSwOU0 ZcisrrgHhQoMq/geYLCFLuAb4xlry+0U72jVowOL7nb0E1OeKQxt2GaMCywXHWMoTMjU=; |
In-reply-to: | <[email protected]> |
References: | <[email protected]> <[email protected]> <CAC+C6w6mjcnjXJr3AeYFRmUmAKurkWVB=qXYT7_w4kjn=LjsrA@mail.gmail.com> <[email protected]> <[email protected]> <[email protected]> <[email protected]> |
Reply-to: | [email protected] |
Sender: | [email protected] |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.5.1 |
Overnight run, http://abelian.org/vlf/tmp/170711a.gif and here is the mean absolute phase difference plotted over a range of time intervals, http://abelian.org/vlf/tmp/170711b.gif This shows the average difference between two phase measurements taken some interval apart. Looks like beyond about 25 seconds, it is about 0.14 degrees at 9765.625 Hz. It is unlikely to get any worse than this at longer intervals, being GPS locked. For a LO at say 130 kHz, it would be about 2 degrees. Good enough for coherent reception at LF I think. Amazing value for £17.00 and takes about 10 minutes to install and set up. -- Paul Nicholson -- |
<Prev in Thread] | Current Thread | [Next in Thread> |
---|---|---|
|
Previous by Date: | Re: LF: Octo-soundcard for the Raspi, another question, Paul Nicholson |
---|---|
Next by Date: | Re: VO1NA on LF: (QSY to VLF), jcraig |
Previous by Thread: | Re: LF: Neo6M vs Neo7M, Paul Nicholson |
Next by Thread: | Re: LF: Neo6M vs Neo7M, Paul Nicholson |
Indexes: | [Date] [Thread] [Top] [All Lists] |