just had one in miles off frequency
the hidden menu adjusted to the max bf 130 and still 50hz off on usb
now the bf 240 and sounds awesome after this mod to pull the frequency a smidge
might help some one as not seen it posted and i did look around
cre8900 off frequency usb
- dt307
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cre8900 off frequency usb
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163dt307-chris
“I fear the day that technology will surpass our human interaction. The world will have a generation of idiots.”
― Albert Einstein
“I fear the day that technology will surpass our human interaction. The world will have a generation of idiots.”
― Albert Einstein
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Re: cre8900 off frequency usb
More details, please. Is that a VR and what value is it?
I have exactly this problem and can't find anything useful, even though it seems to be a common enough fault on these.
I have exactly this problem and can't find anything useful, even though it seems to be a common enough fault on these.
- cb4ever104
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Re: cre8900 off frequency usb
Looks like a variable cap , but I'm sure Chris will give us the details
30TM060
Paul aka "Sammy". (108) PY60 Old Paisley DX Group (RIP Rab Markie)
Ex GM0 , now EA5 .
Handle "Fortune Hunter" back in "the day"
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Paul aka "Sammy". (108) PY60 Old Paisley DX Group (RIP Rab Markie)
Ex GM0 , now EA5 .
Handle "Fortune Hunter" back in "the day"
Radios ....? Anything that says "TAIWAN R.O.C" on the back.
- listner132
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Re: cre8900 off frequency usb
see here viewtopic.php?f=53&t=39710&p=346744#p346744 chris..dt307 wrote:just had one in miles off frequency
the hidden menu adjusted to the max bf 130 and still 50hz off on usb
now the bf 240 and sounds awesome after this mod to pull the frequency a smidge
might help some one as not seen it posted and i did look around
8900mod.png
much thes same thing but with anyton at5555
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Re: cre8900 off frequency usb
That is very, very useful information. Thank you.
I also found this on the wayback machine - unfortunately, the pics are gone, but the description is reasonably good.
https://web.archive.org/web/20111007065 ... oscadj.htm
I also found this on the wayback machine - unfortunately, the pics are gone, but the description is reasonably good.
https://web.archive.org/web/20111007065 ... oscadj.htm
- dt307
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Re: cre8900 off frequency usb
It's a variable capacitor but
I tried a 2pf disk hq cap and that was too much
I didn't have a lower cap to hand and thought I try a trimmer i had handy .
The trimmer is set to it's lowest value some where between 0-2pf your milage may vary
I tried a 2pf disk hq cap and that was too much
I didn't have a lower cap to hand and thought I try a trimmer i had handy .
The trimmer is set to it's lowest value some where between 0-2pf your milage may vary
163dt307-chris
“I fear the day that technology will surpass our human interaction. The world will have a generation of idiots.”
― Albert Einstein
“I fear the day that technology will surpass our human interaction. The world will have a generation of idiots.”
― Albert Einstein
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Re: cre8900 off frequency usb
Excellent, thank you.
That gives me something to work with. I'll leave it for now, as it seems to be stable at -1kHz off, which although a nuisance is easily taken into account and the channel changer retains the offset when changing, so makes life easier.
There's a rig doctor with some good kit up the road a bit from me, and he's got a good rep (not merely a twiddler, by all accounts) and the facility to do proper setups, which I don't have. I'll be able to hand him the set and the info and let him take it from there.
Many thanks to all.
That gives me something to work with. I'll leave it for now, as it seems to be stable at -1kHz off, which although a nuisance is easily taken into account and the channel changer retains the offset when changing, so makes life easier.
There's a rig doctor with some good kit up the road a bit from me, and he's got a good rep (not merely a twiddler, by all accounts) and the facility to do proper setups, which I don't have. I'll be able to hand him the set and the info and let him take it from there.
Many thanks to all.
- dt307
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Re: cre8900 off frequency usb
Mine wasn't that far off it was 500hz
1khz is a bit more .
I found try to get the usb on frequency with the combo of cap and bf 200-300 .
If you add a cap of to big a value your bf will be 300+ and that will make your lsb go bad.
Use the min amount of capacitance neededthen set usb bf,
Set lsb bf
Then am fm if your keen
1khz is a bit more .
I found try to get the usb on frequency with the combo of cap and bf 200-300 .
If you add a cap of to big a value your bf will be 300+ and that will make your lsb go bad.
Use the min amount of capacitance neededthen set usb bf,
Set lsb bf
Then am fm if your keen
163dt307-chris
“I fear the day that technology will surpass our human interaction. The world will have a generation of idiots.”
― Albert Einstein
“I fear the day that technology will surpass our human interaction. The world will have a generation of idiots.”
― Albert Einstein