--- In [email protected], "skipp025" <[EMAIL PROTECTED]>
wrote:
Hey Skip
You obviously didn't read the original
post..The guy has 2 repeaters and only space for ONE antenna..
Yes i indeed agree 2 antenna combiners are the way to go
But it does not help this guy out...
As for freq.I use txrx stuff for this exact app comercially and we
often only have khz of tx spacing.The reason we only use tx/rx is
because it works everytime as engineered, is expandable without
retuning the whole system..
PS i'm wondering why their is a need for 2 ham repeaters at one
location on the same band anyway..Seems like an aweful waste of
spectrum.I know at most of the sites I'm at commercially and hammily,
floor space and tower space are at a premium.
Here is an example to think about..
There are two local clubs in this area.Each has a 2 meter repeater at
one comercial tower site.The clubs dont associate very much.. Club A
has had their repeater there for many years. Its just their "backup"
repeater and has seldom use .Their main repeater is on another
mountain which essentially has the same coverage... Club B has a
repeater at the same site as club A's backup..Club B's repeater is
heavily used on a daily basis..BUT a new leasing company is now the
tower owner and has decided to replace tower and is re assesing tower
space and new leases...He now finds out he has a lot of freebies at
the site and isn't too thrilled...He says either one of you go or
start paying 300+ dollars a month for 2 spaces ....Who goes..Or who
pays?
This really happens ..It happened here and could happen to you..
So maybe instead of cluttering the airwave with useless and hardly
used repeaters maybe we should work together to put better and proper
equip on the air. And then learn to share them more with others
instead of using them for your own agenda...One good
working ,properly built and maintained repeater is worth much more
than 10 useless pieces of junk that are just taking up valuable
spectrum....
Just something to think about....
Dave
> > you should be able to use a single
> > antenna very easily with a T pass
> > combiner from TX RX inc.
>
> Dual antenna combiner systems tend to
> be the better preformers.
>
> > You can indeed have 2 tx and 2 rx
> > on the same antenna ..I do it
> > often comercially...
>
> Yes, but remember his freqencies are
> close spaced, within 1MHz of each
> other.
>
> > Keep the splits as both low in
> > and you should be ok..
>
> One often has to play the cards (freqs)
> dealt.
>
> > NOW as for cost....Each tx channel
> > will set you back at least 1000
> > dollars depending on how many
> > cans and circulators you need for
> > each...(tx rx will calculate this for you)...
>
> Most antenna combiner mfgrs should give
> you a quote and basic engineering. Decibel
> and Telewave are other options.
>
> > you'll prob need one t pass and one
> > (poss 2) varinotch can for each rx
> > channel ... prob 700-900 for each
> > receive channel.....
>
> One can do better by shopping Ebay.
>
> > SO plan on spending around 4000-5000
> > for the 4 channel tx/rx combiner
> > with shipping....It sounds like a lot
> > but its the best way to do
> > what you need to do....
> > Good Luck Dave ka1uag
>
> Playing the game is indeed expensive at
> times.
>
> Any time you can keep the transmitter(s)
> out of the receiver scheme, the better
> off you are out of the starting gate.
>
> cheers
> skipp
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