Problems with freq on MAX PRO 3

djhubbalubba · Post by **djhubbalubba** » Tue Jun 19, 2007 6:27 pm

I tuned my MAX PRO 3 to 100.9 MHz, but when i search on a car radio it show 100.85MHz.

How can i fine-tune this to 100.9MHz?

Post by **pcs** » Tue Jun 19, 2007 9:38 pm

Look at the manual, there is a trimmer on board and it is all explained
in the manual.

We have invested a lot of time into writing these things, but it seems
sometimes that nobody ready them.

djhubbalubba · Post by **djhubbalubba** » Tue Jun 19, 2007 9:45 pm

I have another problem, the signal was poor and just transmitt a few meters.
I don't have the LCD panel, i set the jumper i PO 2, no signal come.
I don't find out of it.

Post by **pcs** » Wed Jun 20, 2007 1:06 pm

Rotate trimmer to adjust power.

I hope the extra trouble you're having with jumpers and switches
is worth the savings from not getting the LCD module as well

Sorry, I am just being a bit naughty today

djhubbalubba · Post by **djhubbalubba** » Wed Jun 20, 2007 1:26 pm

When i have jumper on ''LCD'' it work and the transistor get warm. When i move it to P2 it transmit for a few meters and the transistor is cold.
When i turn the trimmer nothing happend.

Post by **pcs** » Wed Jun 20, 2007 1:47 pm

Its multiturn, you need to turn it for a while and in the correct direction.

M

djhubbalubba · Post by **djhubbalubba** » Wed Jun 20, 2007 1:57 pm

to left og rigth to get more power? Look at the picture

And must the jumper be placed on LCD or P2?
http://www.kanal1romerike.frac.dk/Refre ... mitter.JPG

Post by **pcs** » Wed Jun 20, 2007 2:08 pm

If you don't like trimmer, you can also try 1K potentiometer.

djhubbalubba · Post by **djhubbalubba** » Thu Jun 21, 2007 12:03 pm

how long must i turn it to get full power? 15w or 20 w?
I have turn i for while and it come a ''click'' from it when i have turn the screw 360 degrees

Post by **pcs** » Thu Jun 21, 2007 8:49 pm

It is about 10x 360degrees to get a full turn.

djhubbalubba · Post by **djhubbalubba** » Thu Jun 21, 2007 9:29 pm

And then i will get full output?

Or is it 10 x 360 degrees = 1W or someting?

Post by **pcs** » Sat Jun 23, 2007 9:38 pm

its a multiturn precision trimmer, there is no scale. Turn it one way and power goes up, turn it the other and power goes down. Most people prefer to set power and frequency via LCD display. In some cases they also use potentiometer, which can be connected to the board via 3 provided holes.