THE EQUIPMENT, A FEW ADJUSTMENTS LATER... UP AND RUNNING...
RADIO
The radio installation in the vehicle mentioned in the last post which comprises of the Yaesu FT-100 Field Commando radio, it is fed by 12V and wired directly to the vehicle battery (In line Fuse Protection close to the battery).
ANTENNAS
Maldol HFC mobile mono band antennas, and a nice big ground plane (Toyota Estima vehicle body).
IMPORTANT INFORMATION
Good ground connections are essential to provide maximum performance and good SWR.
The method I use is, by using clamped on antenna mounts, that are grub screwed to something conductive, like a gutter or rear door which provides an excellent ground.
During the installation I had problem tuning the Maldo HFC antennas on all of the bands as well as creating RFI within the vehicle engine management system and music player.
I sourced the problem and found that the HF antenna mount had not pierced the Toyota paintwork on the inside door seam.
I tightened the two grub screws until the paint was penetrated and the bare metal contact of about 4mm diameter X 2 grub screws, was now providing a good ground connection.
The antennas were now fully resonant across the HF bands apart from the HFC 80m, which surprisingly seemed to be resonant over a wider portion of the band than in the previously installed Toyota RAV 4.
The RFI was now minimal, but I still fitted clamp on Ferrite chokes on most of the wiring harnesses that I came across around the Toyota "Brain" engine management system.
Good antenna grounding and the Ferrite's seem to have solved the problem and will hopefully protect the unit.
Even on the output power of 50 watts it is still possible to cause serious damage if these kind of precautions are not taken, so for the sake of a few pounds on ferrite's I was feeling Confident and itching to make some HF /Mobile QSOs.
USER FRIENDLY STATION
Radio Operation was much easier now with the in-dash fitted FT-100 situated conveniently allowing VFO Tuning whilst on the move.
The greatest thing of all was the auto gearbox and steering column mounted shift lever, giving my left hand more opportunity's to engage the PTT.
Last weekend we were Camping in Anglesy which is an extremely beautiful Island located off the North Wales coast.
Anglesy always manages to treat us to a great time, with its beautiful beaches and radiant sunshine. It is also an excellent location surrounded by sea water which is more than likely responsible for putting out a good signal from my Mobile HF Station.
THE RESULT & CONCLUSION
I worked some great QSOs with some good reports of a "good signal for a mobile" which was a pleasure to receive and also confirmed the new Mobile installation was working well.
During this last week The bands have become a bit more interesting and I have worked many Stations during my Work Run around 07.15 UTC and 16.45 UTC active on 20 Meters.
I managed to make Mobile Contacts with DX Stations from places like the MIDDLE EAST, RUSSIA, CANARY ISLANDS, USA, BELARUS, SLOVENIA, GREECE, UKRAINE, ANDORRA, and MOROCCO.
I am pleased with the Set Up and hopefully will continue to enjoy using the equipment for a long time to come, making many QSOs and contacts on the way.
73, Hope to hear you on AIR, Thanks for passing by Ham Radio Blog spot.com!