13 December 2022: 9V1RS VHF Repeater Maintenance Change log

 Published on the 13 December 2022 at 0400 Hours UTC

All Images and text cannot be reproduced without permission from 9V1FH / AI7GW, Fu Hang.

On 13 December 2022, I went to the 9V1RS Repeater Site to do maintenance for the HamVoIP Allstarlink node 55766.

I arrived at the site at about 0855 hours LT when the scheduled time was 0900. Warmly welcomed by the Repeater Host, 9V1HP, Harish, on-site.

Reconfigured the audio levels on the node and tried to enable remote web monitoring (which was unsuccessful). 

Files configured on-site.
  1. rpt.conf
  2. allmon.ini
Changes in rpt.conf
  1. Change 9V1RS/L to 9V1RS and set CW ID
  2. Enabled eannmode=2 ( for RF users to hear which Echolink-connected station)
  3. Changed telemdefault=2 to telemdefault=1
  4. Enabled Beconing=1
  5. Change idtime=600000 to idtime=3600000
Changes in allmon.ini
  1. Added 547120 as a node on the 9V1RS supermon webpage (does not connect)

Settings configured on-site.
  1. Simple tune USB 
  2. Set RX audio to 500 and TX A and B to 500
  3. Disable RX Boost Mode
  4. Alsamixer and increase the speaker output to 95%

Checked all Coax Connections where the Duplexer, Bandpass Filter, and Low Noise Amplifier are.

Some of the connections on the TX side, Bandpass Filter, and Low Noise amplifier are slightly loose.

Before moving the antenna, some local Ham radio operators have tested that one frequency improves if we move the antenna 30cm left or right.

I tested with Arnold, 9V1CD, and myself,  9V1FH, on the possibility of removing some filters and LNA in the RX Chain. Here are the results!

Heading to the roof to check on the Repeater antenna, Moved the antenna on the roof about 50cm. 

All was working when I left the Repeater Site at 1100 Hours and Head Home.

To Do:

  1. change the guying rope as it has been used for about a year.
  2. to find out if the guying rope is affecting the Reception of the repeater.
  3. to make a diagram of every piece of equipment and connections at the site.
  4. Change the volume of the CW ID.

I've included some images below. All Images and text cannot be reproduced without permission from 9V1FH / AI7GW, Fu Hang.


9V1RS Repeater Site when I arrive and set up.

The Diamond X2000 Antenna is in the original position.

The Antenna is in its original position at another angle.

The Antenna moved about 50cm to the right.

The Antenna after being guyed again.

The Antenna after from the bathroom access.

The Antenna after from the Staircase.


All Images and text cannot be reproduced without permission from 9V1FH / AI7GW, Fu Hang.

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