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[email protected] January 24th 06 05:39 AM

Multicoupler ??
 
Anyone know if a passive or active multicoupler is better. Looking at
the Stridsberg offerings. Passive is much cheaper but not sure about
signal loss. Thanks.


Telamon January 24th 06 06:45 AM

Multicoupler ??
 
In article .com,
wrote:

Anyone know if a passive or active multicoupler is better. Looking at
the Stridsberg offerings. Passive is much cheaper but not sure about
signal loss. Thanks.


The actives will make up for the signal power being halved in a 1 to 2
but they cost more money. If you want to hear a signal that is just
above the receiver noise floor before the splitter you might not be
able to hear it after the power is split through the passive splitter.
Weak signals through the passive splitter will sound a little noisier
depending on your radio. If you want a 1 to 4 you should consider an
active unit.

--
Telamon
Ventura, California

dxAce January 24th 06 11:47 AM

Multicoupler ??
 


wrote:

Anyone know if a passive or active multicoupler is better. Looking at
the Stridsberg offerings. Passive is much cheaper but not sure about
signal loss. Thanks.


Go active. I use their 4 port multicoupler here.

dxAce
Michigan
USA



KA6UUP January 24th 06 12:33 PM

Multicoupler ??
 
See the current issue of QST for instructions on building a very simple
one chip active multicoupler with 4 outputs in " The Doctor Is In"
column.
Chuck

wrote:

Anyone know if a passive or active multicoupler is better. Looking at
the Stridsberg offerings. Passive is much cheaper but not sure about
signal loss. Thanks.


Dale Parfitt January 24th 06 01:55 PM

Multicoupler ??
 

wrote in message
oups.com...
Anyone know if a passive or active multicoupler is better. Looking at
the Stridsberg offerings. Passive is much cheaper but not sure about
signal loss. Thanks.

Check out Jim W8ZR's project at:
http://www.miami.muohio.edu/presiden.../mchistory.htm

Th heart is the Maxim MAX497, a very easy to implement 4X video buffer. One
of Jim's kits was just bought on EBay by a friend for $100 or so. Jim also
had them (kits) for sale at Dayton 2 years back.

Dale W4OP



Brian Denley January 25th 06 03:56 AM

Multicoupler ??
 
Dale Parfitt wrote:
wrote in message
oups.com...
Anyone know if a passive or active multicoupler is better. Looking
at the Stridsberg offerings. Passive is much cheaper but not sure
about signal loss. Thanks.

Check out Jim W8ZR's project at:
http://www.miami.muohio.edu/presiden.../mchistory.htm

Th heart is the Maxim MAX497, a very easy to implement 4X video
buffer. One of Jim's kits was just bought on EBay by a friend for
$100 or so. Jim also had them (kits) for sale at Dayton 2 years back.

Dale W4OP


Go active!
I built Jim's (W8ZR) 8 port active multicoupler and it's terrific. It has
some features that the Stridberg does not provide. I do not think he sells
the kits anymore however.

--
Brian Denley
http://home.comcast.net/~b.denley/index.html



D Peter Maus January 26th 06 07:18 AM

Multicoupler ??
 
wrote:
Anyone know if a passive or active multicoupler is better. Looking at
the Stridsberg offerings. Passive is much cheaper but not sure about
signal loss. Thanks.



Signal loss in the passive will be between 3-5db per port. That's
about a halving. Depending on the gain of your antenna, that may be an
issue. It may not. For more than two ports, and for better isolation
between rigs, you'll need an active device.

I've used the splitters by ICE and by Stridsberg. Both are quite
adequate for the purpose. ICE has a bit more bottom end to the
bandwidth, but that's less of an issue than it sounds.

In practical terms, for most installations, one is as good as the other.





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