[Dstar] VK5REX update

[Will]

Hello Michael,

Watched your Dstar youtube videos and in particular
the desensing problems you are having with the UHF
repeater.

With all the receiver isolation it would appear that
the problem is with transmitter noise. The two cavity
filters shown, are they notch or band pass...?

Will
VK6UU






On Tue Mar 23  4:23 , Michael Carey <michaelcarey at internode.on.net> sent:

>Hi Everybody,
>
>I thought it was time for an update email.
>
>Soon(ish), VK5REX will have a 2m (C) module up and working. Frequencies 
>have been assigned by the WIA (146.9625 -600), the licence alteration 
>form hasn't been sent through to the ACMA yet, but hopefully this will 
>be completed this week.
>
>The interesting thing is that I'm not using an Icom ID-RP2000V, instead 
>my home brew D-Star repeater will be pressed into service.
>
>http://www.youtube.com/watch\?v=MALY_mEDp_8
>http://www.youtube.com/watch\?v=BshKlf0QTPY
>
>Members of the GMSK_DV_NODE Yahoo Group can see close up photos of the 
>repeater and interface I built here :-
>http://groups.yahoo.com/group/gmsk_dv_node/photos/album/608983576/pic/list
>
>Initially, I wasn't going to make the home brew repeater a permanent 
>addition to VK5REX... but in the end I thought, "Why not?".
>
>The RFI folded dipole antenna was installed over the weekend (20-21 Mar) 
>and the repeater installed in the rack. I am still awaiting a duplexer 
>solution, so everything is still in the testing phase at the moment. The 
>repeater is only active while I am on site. I did a great stress test 
>yesterday (Mon 22 Mar) during the Ozark Mountain D-Star Net, I ran the 
>transmitter on full power for the duration of the net to make sure the 
>forced air cooling was sufficient to keep the transmitter happy. Aside 
>from the occasional glitches caused by issues with REF001 at the moment, 
>it was a successful test. I was able to check in to the net via VK5REX C 
>using my IC-91AD handheld radio.
>
>I still have to configure D-Star Monitor to include the extra module, so 
>VK5REX C is not appearing on the APRS network, nor are stations received 
>by VK5REX C reported to www.dstarusers.org.
>
>I'll post further updates as thing progress.
>
>Michael.
>VK5ZEA
>
>President LEPARC
>Port Lincoln SA
>
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>)