pira 5watt pll

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thewisepranker
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Re: pira 5watt pll

Post by thewisepranker » Fri Jul 24, 2020 2:11 am

The pins are numbered from 1 to 16, from left to right. Just match the numbers up with J5 on the Pira schematic.

output
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Re: pira 5watt pll

Post by output » Fri Jul 24, 2020 2:18 pm

nice one got it thanks for the help.

radium98
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Re: pira 5watt pll

Post by radium98 » Sun Jul 26, 2020 10:11 am

sorry i was having probles everytime i logged to the forum i have to reset the password etc...
the pins connection is easy i post them on pira forum ,how strange u did not find .they are pin to pin 1 to 1
2 to 2
etc...
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Re: pira 5watt pll

Post by output » Sun Jul 26, 2020 2:27 pm

radium98 you got that wrong.

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Re: pira 5watt pll

Post by radium98 » Mon Jul 27, 2020 5:04 pm

????? any picture of the transmitter ?

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Re: pira 5watt pll

Post by thewisepranker » Mon Jul 27, 2020 10:03 pm

Doesn't seem wrong to me.

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Re: pira 5watt pll

Post by Rfdiva » Wed Aug 19, 2020 11:50 am

Any news

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Re: pira 5watt pll

Post by output » Sun Sep 06, 2020 4:41 pm

got abit of a problem here..wont seem to be locking on frequency ..on the frequency counter it was reading 107.75..so its missing half a mhz it wont lock on 107.8 its always halve never on a full frequency...for refrence this aint a frequency im useing its for a example..voltage on q4 transistor has to b 7.05 volts.. i set it to that the voltage drops it goes to one vòlt to 7 volts .. and the frequency jumps to one end of the band to another..ive even tuned q4 transistor to 9 volts and still nothing it just dont like locking up..the crystal is a 6.4 mhz and i use the 64 hex file..anyone could help that be great..

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Re: pira 5watt pll

Post by radium98 » Sun Sep 06, 2020 8:11 pm

how do you think ,blindly we can help you ?
without posting any video or any picture for the magical transmitter ,that should work at a glance .post pictures....

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Re: pira 5watt pll

Post by radium98 » Mon Sep 07, 2020 9:01 am

output wrote:
Sun Sep 06, 2020 4:41 pm
got abit of a problem here..wont seem to be locking on frequency ..on the frequency counter it was reading 107.75..so its missing half a mhz it wont lock on 107.8 its always halve never on a full frequency...for refrence this aint a frequency im useing its for a example..voltage on q4 transistor has to b 7.05 volts.. i set it to that the voltage drops it goes to one vòlt to 7 volts .. and the frequency jumps to one end of the band to another..ive even tuned q4 transistor to 9 volts and still nothing it just dont like locking up..the crystal is a 6.4 mhz and i use the 64 hex file..anyone could help that be great..
its missing half a mhz <<< No it is missing 50 khz and not 500khz ,blindly i would suggest to look around the quartz clock to see 6.4mhz or 6400khz.

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Re: pira 5watt pll

Post by output » Tue Sep 08, 2020 1:12 am

the crystal is 6.4.mhz .it a kon064....6.400mhz....there is a capacitor c36 i will try a lower capacitor ..if that dont work i will try a higher value capacitor.. thanks for replying..

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Re: pira 5watt pll

Post by output » Tue Sep 08, 2020 1:15 am

the crystal is 6.4.mhz .it a kon064....6.400mhz....there is a capacitor c36 i will try a lower capacitor ..if that dont work i will try a higher value capacitor.. thanks for replying..

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Re: pira 5watt pll

Post by Bton-FM » Tue Sep 08, 2020 8:00 am

output wrote:
Tue Sep 08, 2020 1:15 am
the crystal is 6.4.mhz .it a kon064....6.400mhz....there is a capacitor c36 i will try a lower capacitor ..if that dont work i will try a higher value capacitor.. thanks for replying..
Maybe you could put a trimmer capacitor there instead to adjust the frequency?

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Re: pira 5watt pll

Post by output » Tue Sep 08, 2020 7:30 pm

i will give that a try nice one

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Re: pira 5watt pll

Post by output » Mon Sep 14, 2020 9:16 pm

tried the trimming capacitor ..changed the 27pf which was c36 and lowerd the capacitance higherd the capacitance still no joy.. still not locking up anyone else with any suggestions thanks..

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Re: pira 5watt pll

Post by Albert H » Tue Sep 15, 2020 2:33 am

Are you generating the amount of RF you expect? Are you generating a signal inside Band II?

The most likely problem is that your PIC code is wrong.
"Why is my rig humming?"
"Because it doesn't know the words!"
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Re: pira 5watt pll

Post by output » Wed Sep 16, 2020 5:09 pm

the rf is good on broadcast band .i mite changeto 32 hex file and change the crystal to 3.2 mhz just have to look around on the internet for a 3.2mhz crystal..

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Re: pira 5watt pll

Post by radium98 » Mon Oct 26, 2020 7:08 pm

output have a look at the pira transmitter ?

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Re: pira 5watt pll

Post by output » Mon Oct 26, 2020 11:54 pm

i will have a look .... thanks

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Re: pira 5watt pll

Post by radium98 » Tue Oct 27, 2020 7:14 pm

i mean can you post one picture thanks.

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