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A repeater change out took place February 20 - 23rd, 2009. Had some help moving the
completed projected and ran into issues that required a
consultation phone call for tech support, thank you Mr. Len.
Available and helpful as always.
The DTMF tones 1-3 are not working and others
are marginal. The CTCSS tone decode is functional, the encode is not. I
have some ideas but if you care to share some others, send them
over. A VA3TO interface has been purchased to utilize an external
DTMF decoder. After using IRLP and experiencing 100% reliability and
function with their board, an external seems the only logical course
of action.
The cabinet is now an old Motorola 72 inch, the main repeater is
a re-aligned and tuned low split UHF Mastr II brought up into the
ham band. FSJ4-50B hardline is on all transmit lines and some RG400
is
still in the receive side but will be changed for FSJ1-50A.
Preamp
testing with Angle Linear units needs to be done (ARR is installed for now).
Duplexer analysis and tuning: the current 526-4-2 unit is within
spec but has not been checked with the pass cans attached (used an IFR A-7550 with an Eagle return loss bridge).
Transmission line analysis
was not done
(7/8's Heliax) and the antenna review was not done (DB413 favoring
the Southwest direction).
APRS IGATE seems to be
working well although the Diamond antenna has been in the air for a
long time. The antenna has endured many winters of ice and wind and
has never failed but it is looking worn. Need to test the cable
(LDF4-50) and antenna. |
