How to installing FM transceiver

[peterjaw]

Originally Posted by dk3hv

hello all,
am am Hanno,DK3HV in Munich Germany. Also have a X5 / E70 since a couple of weeks and did not solve the antenna installation. I got a written confirmation from the factory about the installation of a ham radio trx. So the maximum power is 20 Watts. I had a 5series 530D before and had the same confirmation for 100W@HF, 50W@2m and 30W@UHF.
So the X5 is downrated very much.
But that is not the biggest issue... I saw the artikel about the clamp above... how to install: my rear side is glass... can not screw the antenna on glass???
I tried the on-glass glue antenna on the left window, no function becaus ethe glass is "prepared" with some metallic color for sun protection or so. The SWR is 1:1 at around 700 MHZ, no chance.
The 5series had a Comet clamp on the roof and I used a dualband mobil or the YAESU ATAS120 without any problems all the time. Pictures are on my web page www.dk3hv.com
So... how to solve the antenna installation for X5????

Greetings from Munich

vy 73

Hi DK3HV,
I don't have written confirmation from BMW about the maximum power, but I did use ICOM 2720H at 50W output power on my E70. So far, no problem at all. I believe that BMW is just want to stay away from trouble so they gave you a 20W confirmation.

As to "how to install the antenna?". Well, I use "temporary" solution now. I use magnetic mount on the roof with a short antenna (about 41 cm). With the clamp, I guess you can only screw on the lower edge of the hatch which is metal not glass.