Need Help Please Fm25b tm100

[webbie]

Hello
I built a fm25b last christmas for our christmas light show(light o rama) and it was working just fine using the onboard wip antenna. I turned it on this year and it was working fine on 92.3fm.
I decided to buy the tm100 antenna pre built from a company bixiworld.com.
Before I even attached the new tm100 i removed the onboard antenna. I then attached the tm100 using 25 feet of coax cable. Turned on my fm25b, and everything acted as normal until i turned on my radio. I can only recieve sound on 900.0fm I went back and made sure all the dip switches were right. They are, and i even went as far as measuring the voltages on tp1. I Have 9 volts when I set the dip switches to 107.9. I turned off the fm25b, removed the tm100 and reattached the wip antenna. guess what, i can not get the fm25b to go past 900.0fm

So Im reaching out for help right now. My christmas Display has to bee up and running on the 27th.
Do you believe the antenna could mess this up?

[webbie]

Sorry i ment to say 90.0fm

[Ramsey Tech Z99]

It seems strange that the unit will not go above 90.0 MHz when TP1 will go to 9V. Check the TP1 voltage at 88.1 MHz, 90.0 MHz, and 92.3 MHz. 88.1 MHz should be about 0.5 volts. The voltage should get higher with higher frequencies. If the voltage at 90.0 MHz and 92.3 MHz is the same try re-soldering S1, S2, S3, D3-D6, D9- D16, and U2. What kind of range are you getting from the unit?

[webbie]

I can make it to the end of the block using the onboard wip antenna. I will give this a shot and let you know my results.