[Fourlanders] FW: [Mw] 10 Mhz sources

Tom McElroy tommcelroy.mail at gmail.com
Sat Jul 31 09:54:02 PDT 2010


I've been using several Rubidium standards similar those for sale. One is
10MHz, another is 15MHz.

I use the Rubidium oscillators to drive the external input to a HP 8406a
Comb generator.  The HP normally puts out a nice comb every 1, 10 or 100MHz
out to 2GHz or so.

But using the Rubidium standards, I get a very precise marker comb every 10
or 15MHz out to about 2GHz.  Plus very low phase noise.  Good for testing
your filter pass-band, Q, etc.

"The rest of the Story" is in these pix:
http://picasaweb.google.com/KI4WOU/20101JanCombGenerator#slideshow/5500107979547620418

Tom
KI4WOU

[image:
http://lh5.ggpht.com/_erHnnN4_qv4/TFRPGmWC9JI/AAAAAAAAIfk/CrAtclFkMJ0/IMG_5839.JPG]<http://picasaweb.google.com/KI4WOU/20101JanCombGenerator#slideshow/5500107979547620418>



On Fri, Jul 30, 2010 at 8:23 PM, Brian McCarthy <brian at rfacres.com> wrote:

> Nope,
>
> I already have two GPS receivers with slaved 10MHz reference out. The
> HP Z3801 is what I used to take to the mountain for time sync. I fixed
> it by sourcing a stouter power supply. I will be using one of them for
> my 3456 transverter. While I can't power them from just 12VDC, I don't
> envision doing microwave rover, yet.
>
> I know Bob also has at least one Z3801 also.
>
> Brian
> NX9O
>
> On Fri, Jul 30, 2010 at 4:28 PM, Jim Worsham <wa4kxy at bellsouth.net> wrote:
> > Any thoughts on this, especially item # 1?  Is this something we can use
> on
> > the mountain and/or Bobs place?  A GPS stabilized 10 MHz source might
> come
> > in handy for frequency locking test equipment, etc.
> >
> > 73
> > Jim, W4KXY
> >
> > It doesn't matter how beautiful your theory is, it doesn't matter how
> smart
> > you are.  If it doesn't agree with experiment, it's wrong.
> > Richard P. Feynman
> > -----Original Message-----
> > From: microwave-bounces at lists.valinet.com
> > [mailto:microwave-bounces at lists.valinet.com] On Behalf Of
> w1ril at verizon.net
> > Sent: Thursday, July 29, 2010 4:34 PM
> > To: microwave at lists.valinet.com
> > Subject: [Mw] 10 Mhz sources
> >
> > The following items are in excess to my needs and need a good home.
> >
> > 1.  GPS stabilized 10 Mhz source - Juniper GPS / 3V Fox VCXO.  Mounted in
> a
> > 1590B die cast alu box.  Has 2  - 10 Mhz outputs at 9.5 dBm (1-BNC,
> 1-SMA)
> > NMEA connector,  red pwr and green lock LED's.  Runs on 12VDC -  complete
> > with powered antenna & documentation - $125 + shipping.
> >
> > 2.  Rubidium freq standard LPRO-101 with mounted heat sink & 24VDC @ 4.2A
> > P.S. - w/ lock LED.  Output +6 dBm at 10 Mhz.
> > $125 + shipping.
> >
> > If interested pse contact off net to w1ril at verizon.net
> > 73'
> > Ken
> > _______________________________________________
> > Microwave mailing list
> > microwave at lists.valinet.com
> > http://lists.valinet.com/cgi-bin/mailman/listinfo/microwave
> >
> >
> > _______________________________________________
> > Fourlanders mailing list
> > Fourlanders at contesting.com
> > http://lists.contesting.com/mailman/listinfo/fourlanders
> >
> _______________________________________________
> Fourlanders mailing list
> Fourlanders at contesting.com
> http://lists.contesting.com/mailman/listinfo/fourlanders
>



On Fri, Jul 30, 2010 at 8:23 PM, Brian McCarthy <brian at rfacres.com> wrote:

> Nope,
>
> I already have two GPS receivers with slaved 10MHz reference out. The
> HP Z3801 is what I used to take to the mountain for time sync. I fixed
> it by sourcing a stouter power supply. I will be using one of them for
> my 3456 transverter. While I can't power them from just 12VDC, I don't
> envision doing microwave rover, yet.
>
> I know Bob also has at least one Z3801 also.
>
> Brian
> NX9O
>
> On Fri, Jul 30, 2010 at 4:28 PM, Jim Worsham <wa4kxy at bellsouth.net> wrote:
> > Any thoughts on this, especially item # 1?  Is this something we can use
> on
> > the mountain and/or Bobs place?  A GPS stabilized 10 MHz source might
> come
> > in handy for frequency locking test equipment, etc.
> >
> > 73
> > Jim, W4KXY
> >
> > It doesn't matter how beautiful your theory is, it doesn't matter how
> smart
> > you are.  If it doesn't agree with experiment, it's wrong.
> > Richard P. Feynman
> > -----Original Message-----
> > From: microwave-bounces at lists.valinet.com
> > [mailto:microwave-bounces at lists.valinet.com] On Behalf Of
> w1ril at verizon.net
> > Sent: Thursday, July 29, 2010 4:34 PM
> > To: microwave at lists.valinet.com
> > Subject: [Mw] 10 Mhz sources
> >
> > The following items are in excess to my needs and need a good home.
> >
> > 1.  GPS stabilized 10 Mhz source - Juniper GPS / 3V Fox VCXO.  Mounted in
> a
> > 1590B die cast alu box.  Has 2  - 10 Mhz outputs at 9.5 dBm (1-BNC,
> 1-SMA)
> > NMEA connector,  red pwr and green lock LED's.  Runs on 12VDC -  complete
> > with powered antenna & documentation - $125 + shipping.
> >
> > 2.  Rubidium freq standard LPRO-101 with mounted heat sink & 24VDC @ 4.2A
> > P.S. - w/ lock LED.  Output +6 dBm at 10 Mhz.
> > $125 + shipping.
> >
> > If interested pse contact off net to w1ril at verizon.net
> > 73'
> > Ken
> > _______________________________________________
> > Microwave mailing list
> > microwave at lists.valinet.com
> > http://lists.valinet.com/cgi-bin/mailman/listinfo/microwave
> >
> >
> > _______________________________________________
> > Fourlanders mailing list
> > Fourlanders at contesting.com
> > http://lists.contesting.com/mailman/listinfo/fourlanders
> >
> _______________________________________________
> Fourlanders mailing list
> Fourlanders at contesting.com
> http://lists.contesting.com/mailman/listinfo/fourlanders
>


More information about the Fourlanders mailing list