Mike, I saw on the 900 list that you have added the 900 firmware part
number to the Repeaterbuilder Maxtrac pages.
I have some additional notes about Maxtrac firmware and board part
numbers I thought I would pass along. I thought posting it here might
be better than at the 900 list since this information is not strictly
900 [the 900 list owner wants posts to be exclusively 900 related -
that's OK - it's his list] plus I think the Maxtrac series of radios
is of general interest to 'repeater builders' since they have many
applications as repeater receivers, exciters, transmitters, and links.
One item in these notes that I will draw attention to is the fact that
a Radius M214/M216 is really identical to a Maxtrac except for a
different plastic front and different firmware. The reason I note
this is that the Radius firmware supports channel steering from the
accesory port control lines. That makes it possible to easily use one
of these units as a frequency agile [or PL agile] transceiver or link,
controlled by output lines from your repeater controller.
Using instructions you have on the Repeaterbuilder site, a 16 pin
logic board, the range RF board you want, and the right firmware, a
person can 'create' a radio customized to just about any application.
Notes follow:
Maxtrac Firmware list
Part number,application, version, checksum, date, chip
HLN9277A, VHF/UHF/800 Conventional 5 pin logic board, 4.00,(n/a),
1987, 27C64
HLN5569A, VHF/UHF/800 Conventional 16 pin logic board, 5.34, (n/a),
1987, 27C256
HLN9435A, 800 Trunked 16 mode w/conventional, 54.03, (3FD0), 51/92, 27C512
HLN9260C, Maxtrac 840 5 pin boards, 52.07, (n/a), 1987, 27C256
HLN9383F, Startsite Smartnet Type2 16 pin, V71.25, (BEB3), 22/95, 27C512
FRN4007B, 900 Trunked, V80.08, (44F3), 51/94, 27C512
FVN4019A, 900 Conventionl, V30.03, (BD00), 21/98, 27C256
FLN6531A, 800 Desktrac, V31.00, (90D0), 14/95, 27C256 (Tx & Rx are same)
5102901S02, Intrac UHF Maxtrac, V IL 1.014, (n/a), 1990, 27C256
HLN9499B, Radius M214/216 16 pin bd, 21.01, (n/a), 1987 1991, 27C256
Logic Boards
Low Band, VHF, UHF, 800 [all these bands use the same boards]
HLN5172A, 5 pin, trunking
HLN5173B, 5 pin, conventional
HLN9123A, 5 pin, masked
HLN9313A, 16 pin
900 MHz trunking and conventional
FRN5529A, 16 pin
800 RF boards
HLF4095B, non-talkaround
HLF9122A, talkaround
Notes:
HLN5569A supports high tier, signaling, and 32 modes
HLN9499B programs with RADMBL, supports 16 modes & channel steering
from the 16 pin I/O
FLN6531A supports entry of 800 band repeater receiver frequencies
900 logic boards are not interchangeable with other band boards.
Use only 900 firmware on 900 logic boards.
The HLF9122A talkaround 800 RF board has a dual range VCO that can be
used as a low side injection 900 repeater receiver.
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