Thanks David, seems this GR connectors will cost more than I paid for the whole generator!!.
Gabriel.
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--- In TekScopes@..., David <davidwhess@...> wrote:
I have found Chinese BNC connectors to be dimensionally questionable.
So much so that I suspect you would be better off keeping the GR-874
connector and buying one BNC adapter.
I just recent made the jump into GR-874 connectors to support my S-1
and S-2 sampling head habit. Besides being hermaphroditic, I have
found them to be very rugged and reliable.
On Fri, 01 Mar 2013 19:45:38 -0000, "iglesia_cristiana_arpas_eternas"
<iglesia_cristiana_arpas_eternas@...> wrote:
Well Craig, what you say is exactly what I think about.
Once the generator arrive , and measure the natural pulse length, then I
will decide add more or not more length inside, or put a bnc instead GR
and have the facility to change pulse width as needed.
What suggestion to test if Chinese bnc are useable?...you are talk about
dielectric losses..or else?
I cant imagine that Chinese not maintain the physical dimension to
maintain 50 Ohms..but who know?.
Mi first notice that GR are "hermaphrodite" ..we can be confident
about sex even in connector matter!! [:D]
What would be useful is add a repetition rate knob adj.
Thanks Craig, for your valuable input
Gabriel.
--- In TekScopes@..., "Craig Sawyers" <c.sawyers@> wrote:
Hi Albert..probably I put some meters of RG147 as fixed(solder)
internal
line
in order to obtain a 100nS pulse width.
What is the secret about this GR connectors ?, I have the temptation
to
replace by a BNC, any wrong with this change?.
Gabriel.
My version of this generator has a fixed solid line coiled up inside.
There
is also a front panel SMA to attach more line if needed.
Nothing special about GR connectors. Essential if you have a lot of
GR
gear; they were really GR's solution to a 5GHz connector, introduced
in
1943. Then later they introduced the GR900 series that went higher in
frequency. Both "hermaphrodite" in that there was not a male and
female
connector - everything was identical. There were lots of in-house
connectors designed - anyone remember the Rhode&Schwarz Dezifix? All
superceded by the N-type for this frequency range. But really, a high
quality, branded BNC would be fine (all BNC's are not created equal!)
Craig
