Information net

As per KB7ED, the President of CPRG, the following will take place…….The Information Net will suspend operations after Sunday April 30th. The net will resume operations on Sunday Sep 10th.

New duplexer installed

On Apr 2, 2017, at 3:27 PM, Jeremy Prine <kc7vcg@47repeater.com> wrote:

The trip up the hill went pretty well.  We installed the new duplexer and removed the old one. To see the new duplexer along with the old one click here to go to the update in pictures page.  We tested the old one to see how much signal it took to open the squelch on the repeater before removing it and took .5 microvolts.  After installing the new one did the same test and it took only .22 microvolts.  That’s a cut in half roughly of signal to open the squelch!  So I will be testing the old duplexer to see what happened if it got out of tune or damaged somehow.

We also tested the cat5 lines that are connected to the Hamwan in the building next to us.  They passed with flying colors to get our EchoLink node on the hill instead of relying on a RF link into town.

We measured for the remaining feedline jumpers from the polyphasers to the cabinets so they can be put together down here in spare time.

Looked at what needed to be done to get the APRS Digipeater back on the air and will be getting that projects logistics in line for a trip in the near future.

We will be doing some extensive antenna testing in the near future that will involve climbing the tower and testing feedlines, antennas, and jumpers individually.  When we look at the antennas with a antenna analyzer from the ground things just don’t look 100% and can’t determine why.

 

Thanks for everyone’s support and patience while we work threw our projects!

Jeremy Prine    KC7VCG

Board member of the Capitol Peak Repeater Group

A note about work being done on the hill

We will be doing some work on the hill Sunday April 2nd.  This will include installing a new duplexer on the main repeater, checking the internet connection for EchoLink, measuring for feed lines from the polyphasers to the cabinets and if time get the APRS digipeater hooked up and on the air.

While installing the new duplexer we will be on the backup repeater so you will notice a different courtesy tone, coverage might be slightly lower, and EchoLink will not be connected to the repeater.

Sorry for any inconvenience and thank you for your patience!

 

Jeremy Prine

KC7VCG

Board member of the Capitol Peak Repeater Group

Latest update 2-2-2017

So as some have probably heard I was able to make a trip up the hill Wednesday to install our backup repeater.  It has already help guide us in the correct direction in figuring out the receiver problem on the main repeater.  It seems that the duplexer filter system is not doing its job to its full potential.  this is probably because of the cabinet move and not being tested or adjusted for 20+ years.  We figured this out because the back up system is on its own duplexer and antenna system, we are able to change to the backup system when the problem is there.  We did that last night and the noise disappeared instantly when switched to the backup.
The plan of action is to retune the filters and see how far out of adjustment they really are.  If that doesn’t improve the problem we will borrow a different kind of duplexer and install it to see what the result is.  Finding this issue does not rule out that there is possibly a “rouge” station on the hill producing the interference and that no matter how good of filter system we have it will filter the interference out completely.  We are hoping to fix our issue and find the interference at the same time with out having to purchase a new filter system (very expensive).

Make sure you reserve the date!

annual2017repeater-meeting

annual2017repeater-meeting