That external 1MHz input is useful if you want to lock the generator to a
Cesium or Rubidium standard. As an example, if you are doing frequency hop
tests with a synthesizer, you can use the same reference for both the
generator and the synthesizer. This way, it makes it easy to measure
settling time. On another note....................I don't have too many
spare parts for these units, but if one of your ECL 10K devices ever dies, I
do have some of them on hand. I haven't run into a dead one yet, and I hope
that the 10116 device never dies (the one with the heat sink mounted to it),
because I don't have any of those.

Pete

"Floyd Sense" wrote in message
ink.net...
Pete - I wonder what you find that 1MHz input useful for? Does that allow
you to lock the oscillator in phase with the external oscillator ? If so,
how do you use that capability?

By the way, I located the four 10 mF caps you mentioned in the power
supply
and will replace them today before I button up the unit again. While this
103F is very much the same as the 103D, there are some unusual
differences.
The frequency ranges are different and the upper limit is 100 MHz instead
of
175 or so. Also, there's no sweep capability. The metal tag on the unit
indicates serial number 1, and has a contract number scratched in, so I
wonder if this wasn't a one-off that was never produced in quantity.


"Pete KE9OA" wrote in message
...
Hi Floyd,
I am glad that you fixed the unit. I burned out the fuse
in
my unit, and went through the same process of trying to find it. It is
my
favorite generator. I like the fact that it has a separate 1MHz OCXO
for
phase locking the unit.

Pete

OK - thanks Pete.

"Pete KE9OA" wrote in message
news
That external 1MHz input is useful if you want to lock the generator to a
Cesium or Rubidium standard. As an example, if you are doing frequency hop
tests with a synthesizer, you can use the same reference for both the
generator and the synthesizer. This way, it makes it easy to measure
settling time. On another note....................I don't have too many
spare parts for these units, but if one of your ECL 10K devices ever dies,
I
do have some of them on hand. I haven't run into a dead one yet, and I
hope
that the 10116 device never dies (the one with the heat sink mounted to
it),
because I don't have any of those.

Pete

"Floyd Sense" wrote in message
ink.net...
Pete - I wonder what you find that 1MHz input useful for? Does that
allow
you to lock the oscillator in phase with the external oscillator ? If
so,
how do you use that capability?

By the way, I located the four 10 mF caps you mentioned in the power
supply
and will replace them today before I button up the unit again. While
this
103F is very much the same as the 103D, there are some unusual
differences.
The frequency ranges are different and the upper limit is 100 MHz
instead
of
175 or so. Also, there's no sweep capability. The metal tag on the
unit
indicates serial number 1, and has a contract number scratched in, so I
wonder if this wasn't a one-off that was never produced in quantity.


"Pete KE9OA" wrote in message
...
Hi Floyd,
I am glad that you fixed the unit. I burned out the
fuse
in
my unit, and went through the same process of trying to find it. It is
my
favorite generator. I like the fact that it has a separate 1MHz OCXO
for
phase locking the unit.

Pete

OK - thanks Pete.

"Pete KE9OA" wrote in message
news
That external 1MHz input is useful if you want to lock the generator to a
Cesium or Rubidium standard. As an example, if you are doing frequency hop
tests with a synthesizer, you can use the same reference for both the
generator and the synthesizer. This way, it makes it easy to measure
settling time. On another note....................I don't have too many
spare parts for these units, but if one of your ECL 10K devices ever dies,
I
do have some of them on hand. I haven't run into a dead one yet, and I
hope
that the 10116 device never dies (the one with the heat sink mounted to
it),
because I don't have any of those.

Pete

"Floyd Sense" wrote in message
ink.net...
Pete - I wonder what you find that 1MHz input useful for? Does that
allow
you to lock the oscillator in phase with the external oscillator ? If
so,
how do you use that capability?

By the way, I located the four 10 mF caps you mentioned in the power
supply
and will replace them today before I button up the unit again. While
this
103F is very much the same as the 103D, there are some unusual
differences.
The frequency ranges are different and the upper limit is 100 MHz
instead
of
175 or so. Also, there's no sweep capability. The metal tag on the
unit
indicates serial number 1, and has a contract number scratched in, so I
wonder if this wasn't a one-off that was never produced in quantity.


"Pete KE9OA" wrote in message
...
Hi Floyd,
I am glad that you fixed the unit. I burned out the
fuse
in
my unit, and went through the same process of trying to find it. It is
my
favorite generator. I like the fact that it has a separate 1MHz OCXO
for
phase locking the unit.

Pete