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Written by Alan Malan
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Friday, 08 June 2012 19:43 |
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A few months ago we installed a bandpass filter (cavity) to fix the noise problem we had with the repeater, it worked fine for a short time but the sensitivity seemed to keep getting worse and worse.
You couldn't work the repeater reliably without 10-15 watts.
Lou (W7JOF) and I (KB7YSP) went out to the site to install some additional batteries.
The county bought some additional batteries to offset the additional load of their new repeater for public works.
We installed four 104 ah batteries, which gives us an additional 208 amp/hrs at 24 volts.
While we were there we checked the sensitivity and found the additional bandpass filter we installed before was having problems.
Lou took the cavity apart and gave the RF coupling loop a good cleaning.
We also checked the tuning of the cavity which was still good.
We connected it back up, checked the sensitivity, and it was much better........hopefully it lasts for awhile.....:-)
I'll try to add some pics below, one of an RF coupling loop that goes into a cavity, and a pic of the monitor while we were checking the tuning of the cavity.
Keep using the repeater, the more it is used the easier it is to tell if things are continuing to work as they should be.
Thanks for everyones support and patience as we work thru the problems.
73 KB7YSP
Alan Malan
 
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Last Updated on Monday, 09 July 2012 08:32 |
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Tuesday, 12 July 2011 12:34 |
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Saturday was a day that showed that preparation is just as much a part of the job as the actual work.
It was a busy day Saturday, but all the planing and behind the scenes work we put in paid off in a big big way.
Even the buffalo and spiders were not just big out there....they were HUGE!!! Ask anyone who was out there about that!
Early Saturday morning we went to the island repeater site.
We were able to get the batteries installed, and changed over the solar and battery system to 24v.
We had been getting some readings where the solar controller was reaching it's max. of 60 amps, so converting to 24v will help out there.
We created a new power and ground distribution system in the rack to support both the 24 and 12 volts. Installed 2 new 24 to 12 converters, (installed for redundancy)
Installed a new resistor for the D/A converter for the repeater controller to read the 24 volts from.
It went very very well, we had few glitches, and I am very pleased with how it all turned out.
Thanks for everyone's help,w7jof,w7cwk,n7dnd,kc7qqr,kc7ctr...thanks for all your help Saturday.
And thanks to Hall for reprogramming the voltage readout in the repeater controller on Sunday night.
Thanks again everyone for all your help and support! |
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Last Updated on Friday, 06 July 2012 16:27 |
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Written by Alan Malan
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Monday, 24 January 2011 21:26 |
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Well we are back on the air witht he primary repeater since Saturday afternoon. (1/22/2011)
We have put a few more batteries out there to help out until we get the new ones installed.
The better solar days have helped too.
Thanks to all those who have helped get us through everything with the backup repeaters etc.
I hope that light we see at the end of the tunnel isn't a train.....;-)
73 KB7YSP |
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Last Updated on Saturday, 29 January 2011 08:23 |
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Written by Alan Malan
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Saturday, 01 January 2011 14:21 |
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 Just a note to keep everyone up to date on whats going on.
We have a repeater loaned from state emergency management set up for the
147.04 repeater for right now up at Brent's house.
Lou and I went to the island on Saturday and retrieved the backup 147.04 repeater and
duplexers, controller etc.
We took them to gooses house, but could not get the backup controller or duplexers
working, so there is on going work that they are doing to try and get that up and
on the air.
The generator was in an over crank condition and it is out of propane.
There is about 6" of snow out at the island, we needed 4wd, but got there without any
problems.
I swept the snow off the solar panels, and brought up a portable generator and hooked
that up to the charger for awhile to see if we could get the batteries up a little.
Lou and I checked out the solar panels and discovered some loose connections once we
tightened them up we got about 120 more watts coming into the controller.
We will probably have to bring some locktight or lock washers or something next time we go up.
 We suspect that the wind is the culprit, but no way to tell.
We expected to have the backup repeater up sometime this week, but have run into more unexpected problems with the controller and the duplexers
Alan - KB7YSP
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Last Updated on Saturday, 05 February 2011 19:01 |
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Written by John Gold
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Saturday, 01 January 2011 00:00 |
The '04 repeater site on Antelope Island is currently down.
As discussed in the December Club Meeting, the repeater batteries are having problems holding a charge. On the ARES Net last Thursday 12/30/10, Alan announced that the situation had turned critical due to the batteries, lack of sun, and the propane being out. Because of this, he turned off the '04 Repeater on the island.
Currently the Repeater Committee is working on a temporary solution to get a '04 repeater back on the air hopefully the first week of January. This probably will be at a temporary location.
There is a new addition to the website - Repeater Blog. The Repeater Committe will be posting information about the repeater and work done on it.
This information is from Alan Malan KB7YSP - Repeater Chairman
We want to thank Alan and the Repeater Committee for all of the HARD work on keeping the club repeaters functioning. |
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Last Updated on Tuesday, 04 January 2011 14:38 |
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Repeater
