Empathy List Archives

JA

John Ackermann N8UR

Sat, Dec 23, 2017 9:00 PM

I've developed a little board called the PulsePuppy that supports
surplus OCXOs in the common "Eurocase" form factor to provide outputs at
10 MHz, or at 1 PPS/10 PPS/100PPS using an on-board 12F675 PIC with one
of TVB's picDIV firmware images.

The attached pictures show one prototype unit in closeup, and a panel of
three that are used for TICC counter production testing (providing one
10 MHz and two independent PPS outputs). Also attached is an ADEV plot
of the inexpensive Isotemp OCXO131-100 oscillator I'm using to give an
idea of the performance you can expect from these small oscillators
(they and others like them are available from several eBay sources for
<$30).

The PulsePuppy is available from TAPR as a semi-kit and can be ordered
at http://tapr.org/kits_pp.html for $69. We expect to ship the kits in
mid-February (delivery of the boards from our contract manufacturer is
the gating factor).

The assembly manual with schematics can be downloaded at
http://www.tapr.org/~n8ur/PulsePuppy_Manual.pdfm but here are the specs
in brief:

Footprint for either Eurocase OCXO or Crystek CXOH20-BP-10.000
TCXO (TAPR has a bunch of these TCXOs remaining from another project
and, while they last, is offering them bundled with the PulsePuppy
for an attractive price).
PPS divider uses TVB PD-13 firmware that includes capability to
synchronize to an external clock.
TTL-level output at jumper-selectable 10 MHz, 100 PPS, 10 PPS,
or 1 PPS rates.
A BNC output connector is included, but the board contains a footprint
to install a user-provided SMA.
25-turn EFC trimmer with 0-5V range.
Option to support sine-wave as well as square wave oscillators.
Board dimensions are 1.5 x 3.5 inches.

TAPR is offering the PulsePuppy as a "semi-kit" that includes the
printed circuit board with all surface-mount components installed, and a
handful of through-hole parts (like voltage regulators, jumpers, and
connectors) for the user to install. By leaving these parts for the
user, the board can be customized -- for example to use different
voltages or to support a sine-wave oscillator.

Note that the kit DOES NOT include the oscillator, unless you buy the
Crystek TCXO bundle.

Happy Holidays to all!

John

I've developed a little board called the PulsePuppy that supports surplus OCXOs in the common "Eurocase" form factor to provide outputs at 10 MHz, or at 1 PPS/10 PPS/100PPS using an on-board 12F675 PIC with one of TVB's picDIV firmware images. The attached pictures show one prototype unit in closeup, and a panel of three that are used for TICC counter production testing (providing one 10 MHz and two independent PPS outputs). Also attached is an ADEV plot of the inexpensive Isotemp OCXO131-100 oscillator I'm using to give an idea of the performance you can expect from these small oscillators (they and others like them are available from several eBay sources for <$30). The PulsePuppy is available from TAPR as a semi-kit and can be ordered at http://tapr.org/kits_pp.html for $69. We expect to ship the kits in mid-February (delivery of the boards from our contract manufacturer is the gating factor). The assembly manual with schematics can be downloaded at http://www.tapr.org/~n8ur/PulsePuppy_Manual.pdfm but here are the specs in brief: * Footprint for either Eurocase OCXO or Crystek CXOH20-BP-10.000 TCXO (TAPR has a bunch of these TCXOs remaining from another project and, while they last, is offering them bundled with the PulsePuppy for an attractive price). * PPS divider uses TVB PD-13 firmware that includes capability to synchronize to an external clock. * TTL-level output at jumper-selectable 10 MHz, 100 PPS, 10 PPS, or 1 PPS rates. * A BNC output connector is included, but the board contains a footprint to install a user-provided SMA. * 25-turn EFC trimmer with 0-5V range. * Option to support sine-wave as well as square wave oscillators. * Board dimensions are 1.5 x 3.5 inches. TAPR is offering the PulsePuppy as a "semi-kit" that includes the printed circuit board with all surface-mount components installed, and a handful of through-hole parts (like voltage regulators, jumpers, and connectors) for the user to install. By leaving these parts for the user, the board can be customized -- for example to use different voltages or to support a sine-wave oscillator. Note that the kit DOES NOT include the oscillator, unless you buy the Crystek TCXO bundle. Happy Holidays to all! John

JA

John Ackermann N8UR

Sat, Dec 23, 2017 9:21 PM

Sorry, a typo got into the URL for the manual. Remove the extraneous
"m" after ".pdf": http://www.tapr.org/~n8ur/PulsePuppy_Manual.pdf

On 12/23/2017 04:00 PM, John Ackermann N8UR wrote:

I've developed a little board called the PulsePuppy that supports
surplus OCXOs in the common "Eurocase" form factor to provide outputs at
10 MHz, or at 1 PPS/10 PPS/100PPS using an on-board 12F675 PIC with one
of TVB's picDIV firmware images.

The attached pictures show one prototype unit in closeup, and a panel of
three that are used for TICC counter production testing (providing one
10 MHz and two independent PPS outputs). Also attached is an ADEV plot
of the inexpensive Isotemp OCXO131-100 oscillator I'm using to give an
idea of the performance you can expect from these small oscillators
(they and others like them are available from several eBay sources for
<$30).

The PulsePuppy is available from TAPR as a semi-kit and can be ordered
at http://tapr.org/kits_pp.html for $69. We expect to ship the kits in
mid-February (delivery of the boards from our contract manufacturer is
the gating factor).

The assembly manual with schematics can be downloaded at
http://www.tapr.org/~n8ur/PulsePuppy_Manual.pdfm but here are the specs
in brief:

Footprint for either Eurocase OCXO or Crystek CXOH20-BP-10.000
TCXO (TAPR has a bunch of these TCXOs remaining from another project
and, while they last, is offering them bundled with the PulsePuppy
for an attractive price).
PPS divider uses TVB PD-13 firmware that includes capability to
synchronize to an external clock.
TTL-level output at jumper-selectable 10 MHz, 100 PPS, 10 PPS,
or 1 PPS rates.
A BNC output connector is included, but the board contains a footprint
to install a user-provided SMA.
25-turn EFC trimmer with 0-5V range.
Option to support sine-wave as well as square wave oscillators.
Board dimensions are 1.5 x 3.5 inches.

TAPR is offering the PulsePuppy as a "semi-kit" that includes the
printed circuit board with all surface-mount components installed, and a
handful of through-hole parts (like voltage regulators, jumpers, and
connectors) for the user to install. By leaving these parts for the
user, the board can be customized -- for example to use different
voltages or to support a sine-wave oscillator.

Note that the kit DOES NOT include the oscillator, unless you buy the
Crystek TCXO bundle.

Happy Holidays to all!

John

time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
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Sorry, a typo got into the URL for the manual. Remove the extraneous "m" after ".pdf": http://www.tapr.org/~n8ur/PulsePuppy_Manual.pdf On 12/23/2017 04:00 PM, John Ackermann N8UR wrote: > I've developed a little board called the PulsePuppy that supports > surplus OCXOs in the common "Eurocase" form factor to provide outputs at > 10 MHz, or at 1 PPS/10 PPS/100PPS using an on-board 12F675 PIC with one > of TVB's picDIV firmware images. > > The attached pictures show one prototype unit in closeup, and a panel of > three that are used for TICC counter production testing (providing one > 10 MHz and two independent PPS outputs). Also attached is an ADEV plot > of the inexpensive Isotemp OCXO131-100 oscillator I'm using to give an > idea of the performance you can expect from these small oscillators > (they and others like them are available from several eBay sources for > <$30). > > The PulsePuppy is available from TAPR as a semi-kit and can be ordered > at http://tapr.org/kits_pp.html for $69. We expect to ship the kits in > mid-February (delivery of the boards from our contract manufacturer is > the gating factor). > > The assembly manual with schematics can be downloaded at > http://www.tapr.org/~n8ur/PulsePuppy_Manual.pdfm but here are the specs > in brief: > > * Footprint for either Eurocase OCXO or Crystek CXOH20-BP-10.000 > TCXO (TAPR has a bunch of these TCXOs remaining from another project > and, while they last, is offering them bundled with the PulsePuppy > for an attractive price). > > * PPS divider uses TVB PD-13 firmware that includes capability to > synchronize to an external clock. > > * TTL-level output at jumper-selectable 10 MHz, 100 PPS, 10 PPS, > or 1 PPS rates. > > * A BNC output connector is included, but the board contains a footprint > to install a user-provided SMA. > > * 25-turn EFC trimmer with 0-5V range. > > * Option to support sine-wave as well as square wave oscillators. > > * Board dimensions are 1.5 x 3.5 inches. > > TAPR is offering the PulsePuppy as a "semi-kit" that includes the > printed circuit board with all surface-mount components installed, and a > handful of through-hole parts (like voltage regulators, jumpers, and > connectors) for the user to install. By leaving these parts for the > user, the board can be customized -- for example to use different > voltages or to support a sine-wave oscillator. > > Note that the kit DOES NOT include the oscillator, unless you buy the > Crystek TCXO bundle. > > Happy Holidays to all! > > John > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. >

BK

Bob kb8tq

Sat, Dec 23, 2017 9:56 PM

Hi

Looks neat !!!

It is a pretty good bet that everything you see in the ADEV plot is a function of the
specific OCXO you put on the board. Put another way, the. board’s ADEV is way
better than the ADEV of the OCXO. It’s a very safe bet that everything past 2 seconds
or is the OCXO.

Bob

On Dec 23, 2017, at 4:00 PM, John Ackermann N8UR jra@febo.com wrote:

I've developed a little board called the PulsePuppy that supports surplus OCXOs in the common "Eurocase" form factor to provide outputs at 10 MHz, or at 1 PPS/10 PPS/100PPS using an on-board 12F675 PIC with one of TVB's picDIV firmware images.

The attached pictures show one prototype unit in closeup, and a panel of three that are used for TICC counter production testing (providing one 10 MHz and two independent PPS outputs). Also attached is an ADEV plot of the inexpensive Isotemp OCXO131-100 oscillator I'm using to give an idea of the performance you can expect from these small oscillators (they and others like them are available from several eBay sources for <$30).

The PulsePuppy is available from TAPR as a semi-kit and can be ordered at http://tapr.org/kits_pp.html for $69. We expect to ship the kits in mid-February (delivery of the boards from our contract manufacturer is the gating factor).

The assembly manual with schematics can be downloaded at http://www.tapr.org/~n8ur/PulsePuppy_Manual.pdfm but here are the specs in brief:

Footprint for either Eurocase OCXO or Crystek CXOH20-BP-10.000
TCXO (TAPR has a bunch of these TCXOs remaining from another project
and, while they last, is offering them bundled with the PulsePuppy
for an attractive price).
PPS divider uses TVB PD-13 firmware that includes capability to
synchronize to an external clock.
TTL-level output at jumper-selectable 10 MHz, 100 PPS, 10 PPS,
or 1 PPS rates.
A BNC output connector is included, but the board contains a footprint
to install a user-provided SMA.
25-turn EFC trimmer with 0-5V range.
Option to support sine-wave as well as square wave oscillators.
Board dimensions are 1.5 x 3.5 inches.

TAPR is offering the PulsePuppy as a "semi-kit" that includes the printed circuit board with all surface-mount components installed, and a handful of through-hole parts (like voltage regulators, jumpers, and connectors) for the user to install. By leaving these parts for the user, the board can be customized -- for example to use different voltages or to support a sine-wave oscillator.

Note that the kit DOES NOT include the oscillator, unless you buy the Crystek TCXO bundle.

Happy Holidays to all!

John
<PulsePuppy-Multi_small.jpg><PulsePuppy_rev_b_small.jpg><Isotemp_OCXO131-100-hp5065a-adev.png>_______________________________________________
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.

Hi Looks neat !!! It is a pretty good bet that everything you see in the ADEV plot is a function of the specific OCXO you put on the board. Put another way, the. board’s ADEV is way better than the ADEV of the OCXO. It’s a very safe bet that everything past 2 seconds or is the OCXO. Bob > On Dec 23, 2017, at 4:00 PM, John Ackermann N8UR <jra@febo.com> wrote: > > I've developed a little board called the PulsePuppy that supports surplus OCXOs in the common "Eurocase" form factor to provide outputs at 10 MHz, or at 1 PPS/10 PPS/100PPS using an on-board 12F675 PIC with one of TVB's picDIV firmware images. > > The attached pictures show one prototype unit in closeup, and a panel of three that are used for TICC counter production testing (providing one 10 MHz and two independent PPS outputs). Also attached is an ADEV plot of the inexpensive Isotemp OCXO131-100 oscillator I'm using to give an idea of the performance you can expect from these small oscillators (they and others like them are available from several eBay sources for <$30). > > The PulsePuppy is available from TAPR as a semi-kit and can be ordered at http://tapr.org/kits_pp.html for $69. We expect to ship the kits in mid-February (delivery of the boards from our contract manufacturer is the gating factor). > > The assembly manual with schematics can be downloaded at http://www.tapr.org/~n8ur/PulsePuppy_Manual.pdfm but here are the specs in brief: > > * Footprint for either Eurocase OCXO or Crystek CXOH20-BP-10.000 > TCXO (TAPR has a bunch of these TCXOs remaining from another project > and, while they last, is offering them bundled with the PulsePuppy > for an attractive price). > > * PPS divider uses TVB PD-13 firmware that includes capability to > synchronize to an external clock. > > * TTL-level output at jumper-selectable 10 MHz, 100 PPS, 10 PPS, > or 1 PPS rates. > > * A BNC output connector is included, but the board contains a footprint > to install a user-provided SMA. > > * 25-turn EFC trimmer with 0-5V range. > > * Option to support sine-wave as well as square wave oscillators. > > * Board dimensions are 1.5 x 3.5 inches. > > TAPR is offering the PulsePuppy as a "semi-kit" that includes the printed circuit board with all surface-mount components installed, and a handful of through-hole parts (like voltage regulators, jumpers, and connectors) for the user to install. By leaving these parts for the user, the board can be customized -- for example to use different voltages or to support a sine-wave oscillator. > > Note that the kit DOES NOT include the oscillator, unless you buy the Crystek TCXO bundle. > > Happy Holidays to all! > > John > <PulsePuppy-Multi_small.jpg><PulsePuppy_rev_b_small.jpg><Isotemp_OCXO131-100-hp5065a-adev.png>_______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there.

JA

John Ackermann N8UR

Sat, Dec 23, 2017 9:59 PM

Absolutely... the plot is mainly to show what to expect from the little OCXO, not the board. It ain't a BVA, but for the price and size, it's not bad.

On Dec 23, 2017, 4:56 PM, at 4:56 PM, Bob kb8tq kb8tq@n1k.org wrote:

Hi

Looks neat !!!

It is a pretty good bet that everything you see in the ADEV plot is a
function of the
specific OCXO you put on the board. Put another way, the. board’s ADEV
is way
better than the ADEV of the OCXO. It’s a very safe bet that everything
past 2 seconds
or is the OCXO.

Bob

On Dec 23, 2017, at 4:00 PM, John Ackermann N8UR jra@febo.com

wrote:

I've developed a little board called the PulsePuppy that supports

surplus OCXOs in the common "Eurocase" form factor to provide outputs
at 10 MHz, or at 1 PPS/10 PPS/100PPS using an on-board 12F675 PIC with
one of TVB's picDIV firmware images.

The attached pictures show one prototype unit in closeup, and a panel

of three that are used for TICC counter production testing (providing
one 10 MHz and two independent PPS outputs). Also attached is an ADEV
plot of the inexpensive Isotemp OCXO131-100 oscillator I'm using to
give an idea of the performance you can expect from these small
oscillators (they and others like them are available from several eBay
sources for <$30).

The PulsePuppy is available from TAPR as a semi-kit and can be

ordered at http://tapr.org/kits_pp.html for $69. We expect to ship the
kits in mid-February (delivery of the boards from our contract
manufacturer is the gating factor).

The assembly manual with schematics can be downloaded at

http://www.tapr.org/~n8ur/PulsePuppy_Manual.pdfm but here are the specs
in brief:

Footprint for either Eurocase OCXO or Crystek CXOH20-BP-10.000
TCXO (TAPR has a bunch of these TCXOs remaining from another project
and, while they last, is offering them bundled with the PulsePuppy
for an attractive price).
PPS divider uses TVB PD-13 firmware that includes capability to
synchronize to an external clock.
TTL-level output at jumper-selectable 10 MHz, 100 PPS, 10 PPS,
or 1 PPS rates.
A BNC output connector is included, but the board contains a

footprint

to install a user-provided SMA.

25-turn EFC trimmer with 0-5V range.
Option to support sine-wave as well as square wave oscillators.
Board dimensions are 1.5 x 3.5 inches.

TAPR is offering the PulsePuppy as a "semi-kit" that includes the

printed circuit board with all surface-mount components installed, and
a handful of through-hole parts (like voltage regulators, jumpers, and
connectors) for the user to install. By leaving these parts for the
user, the board can be customized -- for example to use different
voltages or to support a sine-wave oscillator.

Note that the kit DOES NOT include the oscillator, unless you buy the

Crystek TCXO bundle.

Happy Holidays to all!

John

<PulsePuppy-Multi_small.jpg><PulsePuppy_rev_b_small.jpg><Isotemp_OCXO131-100-hp5065a-adev.png>_______________________________________________

time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to

https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts

and follow the instructions there.

time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.

Absolutely... the plot is mainly to show what to expect from the little OCXO, not the board. It ain't a BVA, but for the price and size, it's not bad. On Dec 23, 2017, 4:56 PM, at 4:56 PM, Bob kb8tq <kb8tq@n1k.org> wrote: >Hi > >Looks neat !!! > >It is a pretty good bet that everything you see in the ADEV plot is a >function of the >specific OCXO you put on the board. Put another way, the. board’s ADEV >is way >better than the ADEV of the OCXO. It’s a very safe bet that everything >past 2 seconds >or is the OCXO. > >Bob > >> On Dec 23, 2017, at 4:00 PM, John Ackermann N8UR <jra@febo.com> >wrote: >> >> I've developed a little board called the PulsePuppy that supports >surplus OCXOs in the common "Eurocase" form factor to provide outputs >at 10 MHz, or at 1 PPS/10 PPS/100PPS using an on-board 12F675 PIC with >one of TVB's picDIV firmware images. >> >> The attached pictures show one prototype unit in closeup, and a panel >of three that are used for TICC counter production testing (providing >one 10 MHz and two independent PPS outputs). Also attached is an ADEV >plot of the inexpensive Isotemp OCXO131-100 oscillator I'm using to >give an idea of the performance you can expect from these small >oscillators (they and others like them are available from several eBay >sources for <$30). >> >> The PulsePuppy is available from TAPR as a semi-kit and can be >ordered at http://tapr.org/kits_pp.html for $69. We expect to ship the >kits in mid-February (delivery of the boards from our contract >manufacturer is the gating factor). >> >> The assembly manual with schematics can be downloaded at >http://www.tapr.org/~n8ur/PulsePuppy_Manual.pdfm but here are the specs >in brief: >> >> * Footprint for either Eurocase OCXO or Crystek CXOH20-BP-10.000 >> TCXO (TAPR has a bunch of these TCXOs remaining from another project >> and, while they last, is offering them bundled with the PulsePuppy >> for an attractive price). >> >> * PPS divider uses TVB PD-13 firmware that includes capability to >> synchronize to an external clock. >> >> * TTL-level output at jumper-selectable 10 MHz, 100 PPS, 10 PPS, >> or 1 PPS rates. >> >> * A BNC output connector is included, but the board contains a >footprint >> to install a user-provided SMA. >> >> * 25-turn EFC trimmer with 0-5V range. >> >> * Option to support sine-wave as well as square wave oscillators. >> >> * Board dimensions are 1.5 x 3.5 inches. >> >> TAPR is offering the PulsePuppy as a "semi-kit" that includes the >printed circuit board with all surface-mount components installed, and >a handful of through-hole parts (like voltage regulators, jumpers, and >connectors) for the user to install. By leaving these parts for the >user, the board can be customized -- for example to use different >voltages or to support a sine-wave oscillator. >> >> Note that the kit DOES NOT include the oscillator, unless you buy the >Crystek TCXO bundle. >> >> Happy Holidays to all! >> >> John >> ><PulsePuppy-Multi_small.jpg><PulsePuppy_rev_b_small.jpg><Isotemp_OCXO131-100-hp5065a-adev.png>_______________________________________________ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to >https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. > >_______________________________________________ >time-nuts mailing list -- time-nuts@febo.com >To unsubscribe, go to >https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >and follow the instructions there.

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New product: the TAPR "PulsePuppy"