The
radio
used in the mobile is a YAESU FT-8900 which is set up in this
installation to provide 50 watts FM on 6 meters and 2 meters
and 35 watts on the 440 mhz band. The antenna used is a Maldol
EX-510 6/2/440 mobile tri-bander. The FT-8900 is bolted to a
slide mount that is screwed into the side of the transmission
console. When the vehicle is parked, I throw a dark blanket
over the rig to make it less attractive to those who browse
parking lots looking for such things. So far so good... There
is nothing really unique about this installation, except for
the speaker setup. I found that with the motorola 4 inch
speaker mounted under the dash the audio was a bit difficult
to hear clearly whenever a passenger was seated up front. My
solution was to mount an upward firing speaker next to the rig
on the center console. The second speaker is simply wired in
parallel to the Motorola speaker. The articulation of voice
reproduction went from somewhat muddy to very crisp, clean,
and clear. The smaller speaker produces the mid-range and
upper frequencies and the non-directional low range
frequencies come booming out from under the dashboard. It
sounds very loud and very natural in daily use.
I use the mobile mostly on 6 meter FM and can hit six
different repeaters solidly during my daily commute on the
roads of north central Connecticut. It works quite well at the
50 watt level out to roughly 50 miles on the 6 meter band,
assuming fairly optimum repeater locations. Coverage on 2
meters is excellent as well. I also use the radio frequently
on the 440 mhz band and find that it works very well with the
local repeaters and even down into machines located in the
center of the state at the 35 watt power level. Currently, I
do not use the radio on the 10 meter FM band, but when it
starts to open up on a regular basis I will add a 10 meter
antenna.
The FT-8900 is quite a remarkable radio and can provide plenty
of entertainment on a long ride. In addition to offering
excellent performance as a dual-band receiver with over 700
memory slots and covering four ham bands, it is capable of
being set up to scan the aviation band, the marine band, and
the VHF/UHF public service frequencies. It does a great job
when pressed into such use. Living in close proximity to
Bradley International Airport it is possible for me to hear
all sorts of interesting things around the airport, as well as
flights departing and arriving on the tower frequencies. Note
that it does not cover the VHF low band below the six meter
band.
FT-8900 Mounted on the Transmission Console
That is a
ground clamp on the coax connector. The upward firing
auxilliary speaker is on the right.
Motorola Speaker Mounted
Under Dash
This does a good job when teamed up with the smaller
speaker on the console.
View From The Driver's Side
Note the circular band-aid over the mic port. It
stops wind pop noise nicely! A black marker blends it in
pretty well.
Maldol EX-510 Mounted On
Rear Gate

41" Antenna and Mount Just Clears Garage Entry When
Parking
Diamond Light-Duty Mount