: [time-nuts] 2201A GPS
more info for you:
Input/output:
+15VDC
Diplexer for 10Mhz input for LO multiplier chain and 75.42 Mhz output to
receiver.
The LO, 1500Mhz, is obtained from 10 Mhz standard coming from GPS receiver
as follow:
X3=30Mhz x5=150Mhz x5=750Mhz x2=1500Mhz.
RF path 3 stage amplifier
[mailto:time-nuts-boun...@febo.com] On Behalf
Of paul swed
Sent: domenica 10 aprile 2011 15.44
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] 2201A GPS
Rob understood what you meant. My comment was that the 1st mixer and local
oscillator is at 1500 Mhz. So the system
[mailto:time-nuts-boun...@febo.com] On
Behalf Of paul swed
Sent: domenica 10 aprile 2011 15.44
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] 2201A GPS
Rob understood what you meant. My comment was that the 1st mixer and local
oscillator is at 1500 Mhz. So
On 4/11/11 5:58 AM, paul swed wrote:
Wow thats a multiplier chain. The IF is reasonable and would easily be
accomplished in 1 to 2 chips today. Though 2 would be good so you can add
filtering and improve isolation.
That's not all that exotic. In some systems, you don't want PLLs
because they
: [time-nuts] 2201A GPS
Rob you are correct but the 10 MC is a ref for the pll.
Luciano goes into more detail on the diode mixer/doubler and this makes
sense. It would be simple, but would not be very sensitive. So by feeding
the converter as he has with a modern antenna he gains a lot and most likely
April 2011 6:35 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] 2201A GPS
Rob you are correct but the 10 MC is a ref for the pll.
Luciano goes into more detail on the diode mixer/doubler and this makes
sense. It would be simple, but would not be very sensitive
which
was in that band.
Rob K
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of paul swed
Sent: 08 April 2011 6:35 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] 2201A GPS
Rob you are correct
WT
Interesting there are at least 3 total people now that have the 2201. All on
time-nuts.
I have been working on my 2201 with the help of another time-nut and home
brewed the antenna/downconverter. But the way I did it is really
not reproducible. Unless you have a 1600 MC very stable external
measurement
Subject: Re: [time-nuts] 2201A GPS
WT
Interesting there are at least 3 total people now that have the 2201. All on
time-nuts.
I have been working on my 2201 with the help of another time-nut and home
brewed the antenna/downconverter. But the way I did it is really not
reproducible
and frequency measurement
Subject: Re: [time-nuts] 2201A GPS
WT
Interesting there are at least 3 total people now that have the 2201. All
on time-nuts.
I have been working on my 2201 with the help of another time-nut and home
brewed the antenna/downconverter. But the way I did it is really
Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf
Of paul swed
Sent: venerdì 8 aprile 2011 18.04
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] 2201A GPS
Luciano,
The 750 may be made up by the use of a pll
Subject: Re: [time-nuts] 2201A GPS
Luciano,
The 750 may be made up by the use of a pll and then doubled to 1500.
With the information I see they never went into any detail about the
converter.
Just maybe you have those details.
Regards
On Fri, Apr 8, 2011 at 11:08 AM, Paramithiotti, Luciano Paolo S
-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of paul swed
Sent: 08 April 2011 5:04 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] 2201A GPS
Luciano,
The 750 may be made up by the use of a pll and then doubled to 1500
...@febo.com] On Behalf
Of paul swed
Sent: venerdì 8 aprile 2011 19.35
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] 2201A GPS
Rob you are correct but the 10 MC is a ref for the pll.
Luciano goes into more detail on the diode mixer/doubler and this makes sense
...@febo.com] On
Behalf Of paul swed
Sent: venerdì 8 aprile 2011 19.35
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] 2201A GPS
Rob you are correct but the 10 MC is a ref for the pll.
Luciano goes into more detail on the diode mixer/doubler and this makes
Hi; looking for Austron 2201A GPS antenna and manual. Please let me know; I
am interested in purchased one.
Regards
WT
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