Members of the King’s Lynn Amateur Radio Club worked on servicing the tower and the coaxial cabling on the morning of the 12th June. The site was tidied up and the tower wound down. The wire cabling on the winch was checked for integrity and serviced. The coax was also re clipped to the mast and secured to the catenary support. This will hopefully stop some of the issues encountered during windy weather where there was noticeable crackling on signals where the cable was blowing around.
The matching on the cabling was also checked and both TX and RX aerials had a good match.
The tower also hosts a standby dual band aerial for Raynet use and this has subsequently been checked and matching is good for 2m and 70 cm.
The repeater was off air for just under a day whilst the Yaesu Repeater unit was returned to the supplier for a firmware update. This should solve the issue of the through audio being inhibited when the transmission is started whilst the CWID is happening. The update also allows the squelch hysteresis to be adjusted which should help with receiving weak stations and avoid the rather sudden drop off of signals.
The mains has been restored to the site and the repeater is back running. Root cause of circuit trip is being investigated but likely to be equipment in another area of the site.
The mains power to the repeater cabinet has gone off and the back up battery is exhausted. We are trying to get in touch with the tenant whose shed the reset switch is in to restore the power. Hopefully only a few days to resolve.
Following contact with the site owners the mains power has now been restored to the site. The repeater is back running normally.
The mains to the site went off on Thursday 3rd December. A site visit at 20:00 did not find a solution. A further site visit 6th Dec confirmed that no obvious issue in repeater cabin so outage must be elsewhere on site.
Various odd effects were being experienced on receive with echo’s and noises present. Following a site visit checks were made and no obvious faults found on the receive or transmit side.
The system was temporarily ran on battery only power and the issues went. It appears the battery charger was generating these spurious noises. A replacement power supply was installed which now float charges the battery. To date the problems have not re-occurred.