Club repeater room update

kayn1n32008

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I figure these updated photos would be better on their own, rather than a reply to the original post.
The description of each rack will be below the picture.

OP: Club Repeater Room


VHF Weather.jpg
This is our "VHF" rack. Top to bottom.

Top: LMR tenant with their 4 cavity duplexer and a XPR8400 repeater. They are using a SRL210-C4 side mounted on our tower. they are the only user connected to it.
Middle 1: Our 2m analogue repeater. NXR-710. It is multicoupled with APRS and ECCC Weather radio to the SRL210-C4 that is above the top of out tower.
Middle 2: Left, UHF link radio to a wide area UHF network. Right, un used at this time. It's a place holder at this time.
Bottom: ECCC Weather radio on the bottom.
UHF Repeaters.jpg
This is our "UHF" rack.

Top to Bottom:
-DMR-MARC MTR3000
-Quantar P25 linked.
-DMR Brandmeister MTR3000
-Fusion DR-2
-Analogue NXR-810
-RX Multicoupler
-Dual isolator for the Quantar
-6x 4 Cavity ResLok multicouplers all have dual isolators to protect PA's. Right now they are hanging off the multicouplers, eventaully, they are going to get mounted somehow/where.
UHF RX: SRL310-C4 above the top of our tower, mounted on the top of the SRL210-C4. There is a single band pass filter before the window filter on the RX multicoupler. more, or less, nothing outside the ham band makes it to the RX multicoupler.
UHF TX: SRL310-C8 side mounted on the tower.
Power-Packet.jpg
This is the 12v DC/remote power monitoring/Packet rack.
Top to bottom.
-Daniels redundant dual 12v power supply. It runs a bunch of stuff. I can't remember all what it powers right now. definitely NOT making it work very hard.
-DC distribution/remote monitoring panel.
-Spectra Precision GPSDO. It is old. It works. Any equipment that has the option to use a 10MHz external reference, is using it.
-10MHz reference distribution amp.
-Sage ENDEC. we support emergency alert on our repeater system. It is connected digitally to the repeater controller rather than by one of the DB-9 ports on the front.
-8 port RPi based controller using SVXLink. It was a **** ton of work to get this into production. it definitely was NOT a fully developed product. my hats off to the guys that got it working.
-1200 AFSK packet. Its going to get updated. likely to a modern radio and a soundcard/computer set up at some point.
-AC strip/monitoring.
-SDR. only one right now
-2x band pass cavities connected to the packet radio. It is connected to either a discone or a 2.15dB Sinclair ground plane vertical, I honestly can not remember. we also have VHF VERA Winlink node and it is connected to either the discone or vertical, its not pictured. the RF portion is some sort of hammy mobile because it was 'easy' to use the data port. One day it may also be updated to some commercial hardware, that acutally has a decent front end.
DStar-Network.jpg
24 port patch panel.
-Ubiquiti 24 port managed switch.
-Sisco server to do the V.24 to Ethernet/P25 networking.
-Networked KVM. we have a bunch of computers connected to this.
-The Zetron shelf is repurposed to hold some small PC's. It originally held some MPT trunking hardware the club was donated. I couldn't tell you all what they are used for.
-Dell PC that is connected to every ham repeater to be able to remotely program them.
-DStar stack. The VHF and 1.2GHz equipment has been turned off as a 'scream test'. Nobody has complained. lol. eventually be removed along with the Paladin duplexers.
-4 cavity duplexer that was used by the VHF DStar repeater. It will be repurposed at some point, for another project.
6m Zoom.jpg
6m rack, top to bottom.
-2x TK630 mobiles make up our 6m repeater.
-power monitor for the 6m repeater
-2 Kenwood DMR repeater owned by a LMR tenant. Conventional.
-Multicouplers for the DMR repeaters. they are using a SRL310-C2 that was unused on our tower.
Duplexer Zoom.jpg
6M duplexer mounted directly behind the 6m radios. This replaced a huge cabinet duplexer that we could not get adequate isolation from. It's been in service for well over a decade now.
220-VHF combining-2.jpg
This is The biggest change. Once we cutover to the new controller, the ancient MSR2000, 2x DSP404 and Alinco UHF link radio were removed and replaced with the open racks. This freed up a HUGE amount of space. Eventually we will pull the 7/8" 1.25m feed line that comes up in the empty space beside the rack the 220MHz repeater is in and bring it up behind the rack that the 220MHz repeater is in. We removed an entire rack in this row, to make room to access behind these racks. At one time there was 2x 6" 6 cavity duplexers PLUS 2x 10" band pass cavities sitting behind here to combine the MSR2000 and the APRS digipeater.
left most rack holds a 4 cavity ResLok for the 220MHz repeater and the far right racks hold the 4 channel VHF transmit multicoupler and the APRS digipeater.
Power  Sensor.jpg
Something new is the remote, networked, power monitoring. this is all logged and almost every transmitter has a power monitor on it. the VHF and UHF transmit combiner both have channelized monitors to monitor each transmit frequency.

One of the smart guys is in the process of bringing the data together to a public dash board to members can see the power levels in near real time.

It is not a cheap option, and we sneeked in our order right before TACO Don decided tariffs are cool.
APRS Shelf.jpg
A work in progress. This will eventually be our APRS digipeater. the M120 **** the bed, were getting about 310mW into the VHF feedline. this will be set up to put about 15w into the VHF multicoupler. It will use an Argent Data Systems OT3m interfaced to the backplane, and mounted to the AC power supply panel. it will be a very nice and clean shelf when done. I am going to explore replacing this shelf at some point with MT3 parts. we have a ton of VJF MTE receivers and exciters. I would prefer to keep the MT-4e gear for voice projects. Unfortunately the MT-3 does not cover the ham band 'Out of the box', I'm not sure exactly what it is going to take to move it.

APRS Tx Error.jpg
This is probably one of my favorite photos I've taken lately. The service monitor is connected to the GPSDO, as is the VT-4e exciter. Left side is frequency error in Hz, right side is power output. When this finally goes into service, it will be connected to the GPSDO, and will remain rock steady like the DMR, P25, VHF analogue, UHF analogue and ECCC Weather radio. I think I was doing a 'burn test' one night. the exciter was out of its shell, sitting on the bench. the heat sink got maybe 10 degrees C above room temp. these are very well designed and well built exciters. I'd have no issues running this at 8w all day long.

All in all, its a labour of love. Slowly improving the condition of the site. Grounding is going to be a huge project. It was almost none existant when we started this. But winter is hear, and that will be a next year problem. lol
 

kayn1n32008

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Next P25 Repeater.jpg
This is going to eventually be deployed to a remote site. It will be a UHF P25 drop repeater linked back to the UHF quantar at our primary site. still lots to do with this one. The link will be multicoupled to the analogue UHF link at the remote site and use the same yagi(a next year project.) This is 2x UT-4e exciters, 2x UR-4e receivers with a 30w UHF PA. the drop is going to be multicoupled to an existing UHF analogue repeater at this site.
 

kayn1n32008

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DStar Update.jpg
Well, looks like the guys removed the 145MHz and 1.2GHz DStar repeaters and the 444MHz and 1.2GHz duplexers this afternoon. The VHF cans will likely get repurposed for some other project in the future. Also, the UHF link radio is eventually going to be replaced with a TK81810 at some point. They have just really, really good audio.
 

ScanWI

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View attachment 193893
Well, looks like the guys removed the 145MHz and 1.2GHz DStar repeaters and the 444MHz and 1.2GHz duplexers this afternoon. The VHF cans will likely get repurposed for some other project in the future. Also, the UHF link radio is eventually going to be replaced with a TK81810 at some point. They have just really, really good audio.
If you guys are looking to get rid of the VHF and 1.2Ghz we would be interested in them up here in WI.
 

kayn1n32008

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This is a screen capture of the stats page one of the club members built to visually display the data that the Bird inline, networked power monitors collect.
Screenshot_20260109-121258_Chrome.jpg
All monitors are between the tower feedlines and the output of the multicouplers. The exception is the 220MHz repeater, it is between the duplexer and tower feedline, as it is the only 220MHz device we have at site. The 220MHz repeater is 2 Alinco mobiles with the TX mobile transmitting at 10w TXPO.

The multicouplers definitely need some tuning and optimizing. Weather radio is transmitting just under 70w before the multicoupler.. The VE6MC, VE6VPR and VE6EMS repeaters are transmitting well under their rated(125w, 100w and 100w) power output, but still seeing 3.5-6dB of losses on the UHF multicoupler.
 

awstott

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View attachment 193893
Well, looks like the guys removed the 145MHz and 1.2GHz DStar repeaters and the 444MHz and 1.2GHz duplexers this afternoon. The VHF cans will likely get repurposed for some other project in the future. Also, the UHF link radio is eventually going to be replaced with a TK81810 at some point. They have just really, really good audio.
This rack needs a new picture..... It's missing the cleaner packet setup.
 

kayn1n32008

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This rack needs a new picture..... It's missing the cleaner packet setup.
Screenshot_20260314-125618_Gallery.jpg
Latest update to the 'DStar' rack. The VHF and 1.2GHz repeaters are gone, along with the 1.2GHz combiner/duplexer and UHF duplexer. We condensed our separate VARA and 1200baud AFSK packet nodes into a single computer and single radio. The UHF pass can is a preselector for our UHF Receive airchain. The VHF can is for the packet node.
 

exkalibur

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Since you are sharing an antenna with Weatherradio, I'm curious what is going to happen when they start shutting down tomorrow?
 

kayn1n32008

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Since you are sharing an antenna with Weatherradio, I'm curious what is going to happen when they start shutting down tomorrow?
The only stuff ECCC owns is the gear in the rack. Everything in the RF air chain the club owns.
 
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