Marcus,
Do you realise that the Tait repeater that you have purchased has 50 KHz
channel spacing?
The T345 RX has a very different IF section compared to a 12.5 or 25 KHz model
T345 RX
You describe what probably was an ex Transpower radio link (Bearer) for
protection signalling. The Transmitters were designed to run 10 Watts at 100%
duty cycle. They were also configured as N+1 Hot standby links, hence the TX
and RX monitor modules.
The T856-24 was a custom build by Tait Electronics for Transpower NZ, as the
original T346 TX modules had lots of issues with P/A's etc and were deemed too
unreliable, hence the swapout to a later T800 series TX.
If you are very unlucky, you have black faced T300 series equipment, The later
stuff was straw colour, the same as the T800 radio.
They are not particularly friendly to convert back to a conventional voice
repeater, especially without the proper manuals and test gear.
Cheers
Gareth Bennett
----- Original Message -----
From: Marcus
To: Repeater-Builder@yahoogroups.com
Sent: Wednesday, October 28, 2009 8:04 PM
Subject: Re: [Repeater-Builder] Tait UHF Standby Repeater D-Band
Also i am running the system up on 465.61244 RX and 470.79996 TX
and the Transmiter i am running is a Tait T856-24 with a T341 Tx Monitor
duplexor
T345 Receiver T343 Receiver Monitor + a text panel
Marcus
Gareth Bennett wrote:
Hi Marcus,
These come in all shapes and sizes, D band cavities are particularly hard
to obtain at the best of times. Quite often cavities are not needed, especially
if the Duplexer is a bandpass item. these are usually added on a "per site"
basis.
It's good housekeeping to have a bandpass filter system, generally as the
Tait duplexers are notch devices only.
Cheers
Gareth Bennett
(----- Original Message -----
From: Marcus
To: Repeater-Builder@yahoogroups.com
Sent: Monday, October 26, 2009 11:26 PM
Subject: Re: [Repeater-Builder] Tait UHF Standby Repeater D-Band
i have added your email addy to my address book in case i need any more
duplexors
what i need is a price first for a cavity filter or two
not a duplexor, nor a diplexor, nor a arieal, nor anything else
am just after a price and availibility of Cavity filters
Marcus
Gareth Bennett wrote:
Hi Marcus,
How many do you require, and what model Tait?
I have either T300 or T800 Series rackmount duplexers available
Cheers
Gareth Bennett
(----- Original Message -----
From: Marcus
To: Repeater-Builder@yahoogroups.com
Sent: Monday, October 26, 2009 1:30 PM
Subject: [Repeater-Builder] Tait UHF Standby Repeater D-Band
is there anyone on this list that resides in NZ and if so/not does
anyone have any Cavity filters, if so how much
i have a Tait Repeater running D-BAND it was a backup system
would like to get it running, forgive the contradiction, the system
is
fully operational, i would like to put it to some use
must be loads of points i have not mentioned, so if need be fire
away, i
shall answer all my old almost had it brain can conjur up
Marcus
