Power Supply-Voter updates
Today saw the long awaited upgrading of the repeater power supplies and the new voter for the six meter receivers.
The two Astron RS50 power supplies which have been doing a yeomans job for years were finally replaced by two Astron RS70M supplies. Finally we have meters to indicate the loading on the supplies-- much easier to judge loading than the 'finger-on-heatsink' test.
With these new supplies, the 2mtr remote base and the packet station are now on battery backup. The only portion of the site that is not on battery backup is the 6mtr gear and the second 449.725 receiver at the site.
With just the 'exciters' running, the current draw is negligible and at most an amp on either supply. The 6mtr power amp appears to draw about 10amp (a bit low I think-- will have to look at that later), the 440 power amp appears to draw about 23 amps (more like it). The SyntorX on 2meters draws about 9 amps when it's transmitting.
The installation involved moving many items around in the rack, thankfully everything fit. As I left the site this evening the backup battery was accepting a charge from my portable charger.
I also installed the new LDG RVS-8 voting receiver controller. The first four ports are wired to the KK standard 9pin connectors for use with my 6mtr receivers. The present two receivers were setup with the new voter and appear to be functioning properly. I will add an additional receiver (or two) to the voter in the coming weeks.
While dealing with alignment issues on the new voter (which went easily and well it seems) I also touched up the setup on the 440 side with it's Doug Hall voter.
Since the installation was going well, I decided it was a good time to add the extra circuits to the special 'Benzie PL one-shot' circuit so that it only functioned when the remote base was dialed up on the 147.04 repeater. After a bit of soldering and a few parts, the added circuitry was in place and now the annoying 'squelch burst' when non-Benzie repeaters (or simplex) was dialed up on the remote base is gone. The Benzie circuit is only functional when the Benzie repeater is selected-- the way things aught to be.
More improvements to follow shortly.