Hi Cort,
Just something to keep in mind...
You can use a regular radio as a signal generator just as you
can use another for your receiver/detector function.
Duplexer adjustment is more easily done with some RF-Pads
(attenuators) placed on each coax port. I use some 3dB pads
fairly easy to
I have found that the main problem in using a talkie
as the receiver for tuning the notch in a duplexer is
the possible leakage of RF between the signal source
directly into the talkie. Most talkies are not
shielded at all, and any leakage will cause you to
tune a combination of the signal
Jim
I have used double shielded coax and haven't had too much problem with
leakage.
73
Brian
Jim Brown wrote:
I have found that the main problem in using a talkie
as the receiver for tuning the notch in a duplexer is
the possible leakage of RF between the signal source
directly into the
This has me thinking in new ways handheld has an ultra-low 50mw
output...
On Dec 22, 2007, at 2:34 AM, skipp025 wrote:
Hi Cort,
Just something to keep in mind...
You can use a regular radio as a signal generator just as you
can use another for your receiver/detector function.
At 12/22/2007 08:19, you wrote:
Jim
I have used double shielded coax and haven't had too much problem with
leakage.
73
Brian
The problem with HTs is that the radio itself is not well shielded. Of
course some are better than others but I haven't found any that are good
enough to use for
Oops. I forgot to mention double shielded cable for ALL
interconnects is an absolute MUST, at least with my duplexer - it
has notches in excess of 120 dB deep after refurbishing. It doesn't
take much leakage cause problems when you're dealing with notches
like that.
Paul N1BUG
Paul N1BUG
A friend of mine gave me some surplus RG-400 from the place he
worked a few years ago. I got sold on the stuff, and with 50-75 feet
of 5 foot pieces, I've been fortunate enough to use it with reckless
abandon for some time :)
On Dec 22, 2007, at 1:27 PM, Paul N1BUG wrote:
Oops. I forgot
7 matches
Mail list logo
