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