Problems with freq on MAX PRO 3

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djhubbalubba
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Problems with freq on MAX PRO 3

Post by djhubbalubba »

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? :wink:
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pcs
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Post by pcs »

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. #-o
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Post by djhubbalubba »

;) 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. :(
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Post by pcs »

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 :P
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Marko - PCS Electronics
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http://www.pcs-electronics.com
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Post by djhubbalubba »

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.
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Post by pcs »

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

M
Best regards,
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http://www.pcs-electronics.com
fax +386 4 2316 128
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Post by djhubbalubba »

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
Last edited by djhubbalubba on Wed Jun 20, 2007 2:08 pm, edited 1 time in total.
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pcs
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Post by pcs »

If you don't like trimmer, you can also try 1K potentiometer.
Best regards,
Marko - PCS Electronics
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http://www.pcs-electronics.com
fax +386 4 2316 128
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Post by djhubbalubba »

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 :roll:
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Post by pcs »

It is about 10x 360degrees to get a full turn.
Best regards,
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http://www.pcs-electronics.com
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Post by djhubbalubba »

And then i will get full output?

Or is it 10 x 360 degrees = 1W or someting?
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Post by pcs »

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.
Best regards,
Marko - PCS Electronics
--------------------------------------------------------
Turn your PC into a FM radio station!
http://www.pcs-electronics.com
fax +386 4 2316 128
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