开云体育

Hi Guys,

We are, in my little HAM-community in Gyor, Hungary, Thinking to start
repeaters. We have surplus radios, aerials, but the big Enemy is the
duplexer (cavity filter).
We need homebrewer's technical docs how to build a good cavity filter
for 10, 6, 2 m and 70 cm bands.
Can anybody help with some technical literature on any other ideas?
Thanks in advance
Tibor HA 1 US

email: kosat@...
or ha1us@...

Kosa Tibor wrote:

From: Kosa Tibor <kosat@...>

Hi Guys,

We are, in my little HAM-community in Gyor, Hungary, Thinking to start
repeaters. We have surplus radios, aerials, but the big Enemy is the
duplexer (cavity filter).
We need homebrewer's technical docs how to build a good cavity filter
for 10, 6, 2 m and 70 cm bands.
Can anybody help with some technical literature on any other ideas?
Thanks in advance
Tibor HA 1 US

email: kosat@...
or ha1us@...

------------------------------------------------------------------------> G-SHOCK SPORTS WATCH - Built Tough! Built Cool! G-SHOCK keeps you in
Sync! Shock Resistant and Loaded with Features! Electo-luminescent,
Satisfaction Guaranteed*No-Hassle Returns*Only $69 Free Freight in US

------------------------------------------------------------------------> This list is sponsored by the owners and users of "RBTIP"

from Hollywood.

Your first step would be to read all available information on duplexor
technology. The RSGB book is a good source of info. You should also
contact a manufacturer like WACOM Products and request all of their
literature. They may be reached by e-mail: wacom@...
You should scan back through the Repeater-builder list-serv posting
for further info.
If you have access to inexpensive materials, building your own is
an option. Another option is to use two sites spaced far enough
from each other that no cavities are required. They may be linked
by wire or qrp radio. Please keep us informed of your progress

Good luck and vy 73.

Bob - W3TGG

Robert D. Mantell wrote:

Your first step would be to read all available information on duplexor
technology. The RSGB book is a good source of info. You should also
contact a manufacturer like WACOM Products and request all of their
literature. They may be reached by e-mail: wacom@...
You should scan back through the Repeater-builder list-serv posting
for further info.
If you have access to inexpensive materials, building your own is
an option. Another option is to use two sites spaced far enough
from each other that no cavities are required. They may be linked
by wire or qrp radio. Please keep us informed of your progress

Good luck and vy 73.

Bob - W3TGG

Hi, Bob,

Thanks you very much for your answer. Sorry, we have not two sites to
make repeater, only a little place in a tower of my job.
Tnx Bob, and my best wishes!
Tibor HA1US