The advantage of the Leo Bodnar unit is that it can do a lot more than just act
as a fixed 10 MHz reference. It covers the range 450 Hz to 800 MHz, so has many
other uses around the shack.
I use mine for frequency locking the 116 MHz Local oscillator of an a G4DDK
Anglian 144 MHz transverter.
Two Christmases ago, my fiance asked me what I wanted for a gift. On a whim,
without too much study, I said a Bodnar GPSDO. I emailed Leo and inquired about
using the unit as a reference for my SDR-IQ (66. MHz) and a 10 MHz source
for my DG8SAQ network analyzer which can also operate as a
G0WBX
On 09/05/17 21:53, elecraft-requ...@mailman.qth.net wrote:
> Date: Mon, 8 May 2017 16:26:10 -0600
> From: "Jay Miller"
> To:
> Subject: [Elecraft] GPS Disciplined 10MHZ source from China
> Message-ID: <001001d2c84a$1881a390$4984eab0$@mindspring.com>
> Cont
Thanks for bringing up phase noise. From my research on other cheap devices
(knockoff TCXOs), I have found that phase noise was obviously not
considered and in that case was truly awful. It was in the -115 dBc range
at 100hz, but, likely due to poor design, actually rose to -110 dBc at
10-100 kHz o
>"If you want a good quality 10 MHz GPSDO, I recommend the one made by Leo
Bodnar M0XER. It was reviewed in QST, June 2016."
Unless the K3S architecture is different than the K3, then frequency, rather
than phase-locking is used from the external frequency source. Phase noise
performance of the G
On 08/05/17 23:26, Jay Miller wrote:
> I was curious so I bought a GPS disciplined 10MHz source from China using
> the eBay seller "cybereveryday." I have a calibrated scope and a Rubidium
> 10MHz source. I noticed a frequency offset on three of the WWV frequencies
> when I plugged it into the K3
How did you measure the GPSDO? Against the Rubidium?
On 5/8/2017 3:26 PM, Jay Miller wrote:
I was curious so I bought a GPS disciplined 10MHz source from China using
the eBay seller "cybereveryday." I have a calibrated scope and a Rubidium
10MHz source. I noticed a frequency offset on three of
way off.
I'm not sure what you are using for an Antenna, I'm using an external GPS
Timing Antenna
From: Jay Miller
To: elecraft@mailman.qth.net
Sent: Monday, May 8, 2017 6:28 PM
Subject: [Elecraft] GPS Disciplined 10MHZ source from China
I was cu
Need to get that TMP cable (radio to Freq. Ctr) made and get back to the
project of determining exactly how close you can get on average without
an instrument(s).
Pretty sure I can get a lot closer than 25 Hz using my ear even my
old aviator's ear.
Glad I chose NOT to try the eBay/Chinese PCB
I was curious so I bought a GPS disciplined 10MHz source from China using
the eBay seller "cybereveryday." I have a calibrated scope and a Rubidium
10MHz source. I noticed a frequency offset on three of the WWV frequencies
when I plugged it into the K3 XREF module after getting "GPS Lock" rather
t
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