Information about the repeater PI2VNR

                                                                                    Working frequency's:    Output              :    430.350Mhz
                                                                                                                        Input                 :    431.950Mhz

                                                                                                                        Antenna            :    2 x Diamond X-30 5.5db Gain on TX and RX
                                                                                                                        Tranceiver        :    QES- ST-5188 UHF Spare NOKIA RD-40
                                                                                                                        Receiver           :    QES- ST-5188 UHF

                                                                                                                        Outputpower    :    8 watts
                                                                                                                        Coax                :    Aircel 7
                                                                                                                        Hangtimer         :    1sec
                                                                                                                        Id                     :    CW
                                                                                                                        Timeout            :    5 min. Talktime
                                                                                                                        Ctcss                :    No

                                                                                                                        QthLoc.            :    JO21XM
                                                                                                                      City                   :   Venray

                                                                                    Owner & Builder         Call                    :   PA3ADS
                                                                                                                       Reg. number AT :   AT-EZ/6201696

The repeater, PI2VNR, is build by PA3ADS, complete with antenna-system.
All the parts from this complete repeater are property of PA3ADS.
Also the license to operate on the above called frequency's is property of PA3ADS,
and is registrated at AgentschapTelecom - Groningen - Netherlands.

The Spare parts ( NOKIA RD-40) will be used for replacement,
by malfunction of the repeater units.

Special Note:

All gifts or donations will be automatic property of PA3ADS, in order to use them for repair
or expanding the repeatersystem.

The idea came up at a moment there was no 70cm repeater active in the area where i live.
I knew there was a running license for a 70cm rep. in the area, but this repeater was not active.
I went for a little chat with the owner of the license, and we came out on a good deal.
I made some contacts with other repeaterbuilders to ask what was needed to build one.
Also a great help was : http://www.repeater-builder.com . A good site about how to build a repeater.
And, of course, the great ARRL Antenna handbook.

So I started to collect al lot of stuff, ex.: radio's - antenna's - schematic diagrammes - frames ..........
But there was no location to put on the repeater. So that should be one of the first things to do.
I went also to the concerning authorities to applicate a license for my repeater.

In the meantime i made some contacts with some teachers from a local highschool and they where
interested in my idea. So the location was found.
On top of a building, not so high,   but exactly high enough to reach the complete region with my repeatersignal.
The antenna hight is about 25mtrs above street level.

First i started to build the repeater itself ( the electronic part):
The electronica exist from the following components :

                                                                                                  1 UHF mobileradio from QES&T. ST-5188 Uhf (rx)
                                                                                                        1 Nokia RD 40 (tx)
                                                                                                             1 interfacecard
                                                                                                                1 Powersupply 12v dc 10-12Amps.
                                                                                                                        3 12volt mini fans for coolingsystem.
                                                                                                                               1 High voltage protectionsystem  (overlaod-protection)

I needed a 19 Inch rack to build-in al the electronic stuff, and I got that, as a gift, from a good friend.
So i build in al the stuff and could go on with test of good functionality.
The situation at the testlocation( my own shack) was not so good, becaus there where 2 different coaxe's.
Once there was RG213 and RG58, so the signals could come in via the cable. The coax was not 100% shielded..
There where 2 different antenna's, and not exact above each other, so the signals beamed into the RX antenna,
and into the coax. But I trusted my idea concerning the antenna system which I had in mind.

Now all the tests where passed, i had to wait for the license.
But there was still one thing to do, build the antenna system.

2 diamond x-30 antenna's , with 5.5db gain on 70cm, and a 5mtr mast, should do the job outside.
With 2 local radiofriends we build-up the antenna system, this was a thing i could not do by myself.
Well friends, manny thanks for your help with this. The used coax is Aircell 7, 100% shielded.
In the RX line are some Cavityfilter's situated with a total att. > 65dB.
Including the antenna elaboration.
Two of these filter are donated by a ham in our region. Thanks for that.

In the next time I will try to solve the little problems the repeater is showing up now.
Meanwhile i'll be bussy to get some new cavity-filters,
so the receiving signal will become better as now.

Pictures:

The repeater on the test frequency's

The interfacecard

The 2 X-30 antenna's on the mast.
on the rightside an lightning-protectionarial from the High-school

The mast construction - with 1 of the lightning protection arials in front
The housing and mast are both grounded to the lightning protectionsystem of the building