A few inklings of southbound shorebird migration have begun: on Canada Day, a visit to the Almonte sewage lagoons produced one LESSER YELLOWLEGS and eight LEAST SANDPIPERS, and there were nine LEAST SANDPIPERS at the Embrun lagoons the same day. CASPIAN TERNS are rare but annual transient summer visitors to our region.

Holiday Beach Migration Observatory Ontario, Canada Daily Raptor Counts: Oct 10, 2005 ------------------------------------------------------------------- Species Day's Count Month Total Season Total ------------------ ----------- -------------- -------------- Turkey Vulture 62 4134 4292 Osprey

Solomon" > To: > Sent: Thursday, January 08, 2009 10:11 AM > Subject: [time-nuts] 10 MHz Band-Pass Filter Needed > > > >> The GPSDO I want to use has an output rich in harmonics.

I only have a really good 10 MHz OCXO crystal oscillator to distribute, so about -120 dBc at 10 Hz, -140 dBc/Hz at 100 Hz, - 150 dBc/Hz at 1KHz, and -155 dBc/Hz noise floor.  No maser or cesium clock, living in the world of practical realities here.  Of course I would like to be 3 - 6 dB better than the OCXO numbers.

Is the PRS-10 worth trying >the filter mod on?

4/10 Orange, Earlier this week I visited Old Tavern Rd recreation fields to see if the ospreys had returned (which they had). However their nest on the light pole from the previous year had been taken down. I visited again this morning. The male osprey was bringing in several branches, and the nest looks impressive so far.

high speed CMOS buffers will not add enough noise to matter at 10 MHz.

50 Mhz current opamp have a very nice 10 Mhz sine wave out. >>> Any spurs are down at least 43 db.

>>> Most Thinnet has both a braided shield and a foil wrap. >>> >>> Robert >>> >>>> On 08/28/2021 08:26 PM, Bob kb8tq wrote: >>>> Hi >>>> >>>> Anything you do that has a bunch of 10 MHz cables running out from here or there >>>> will impact your ability to listen to WWV at 10 MHz :) Other than killing all the sources, >>>> there is no silver bullet. >>>>

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