Microwave Forum

R_F · Rod & Todd Flanders Beiträge: 6

I NEED HELP!

Me again...
Ok, look at page 2 in section Electrical Characteristics for PA..there you find note. Pulse operation!!!!!
pulswidth of 577uS...

Also another strange input pin 2 V neg?
Look at this schematic I have:
http://hem.bredband.net/b395058/schem.gif

To me it looks like the power is pulsed to the PA circuit?
TXON at the left seems to be the controlling signal for this pulsing...

I guess that pin 1 and 2 create a negative voltage at pin 2, right?...

When you have a phone close to a radio you can over hear the signal and it sound like buzzing...577uS = 1733 Hz...is it so?

IS it so for all PA that the power pulses?

What do you suggest I do...
Don't say change PA...*LOL*
I want to use this circuit..

You think it will work with constant power and I make a negativ voltage to pin 2?

Please give me your reflections..

All helps needed...*smiling*
Have a great evening now..

D.