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I have noticed if I have both waterfalls centered on the same frequency I get a high noise level. Keep your bottom spectrum off center of your top one. I do not know why there is noise in the middle of my bottom spectrum?
Also with 12khz wide on your FM broadcast your not going to hear much...
I ordered right from Nooelec website, Shiping was only $3
NooElec - Home page
After I order I ran across this
RT820 Vs E4000 SDR DVB-T Dongles - YouTube
Seems the cheaper dongle is a little better, I ordered the more expensive one...lol But it came with connectors.
I thought the audio sounded a little punchier with R266, with a mosfet radio and R266 I could get the positive peaks to really round off. Like a tube when your drive it near saturation. Also I have seen a weird carrier changes with R264 on some radios and the problems were normally fixed after...
I know the transition your talking about, I agree that makes sense!
Im going to look into the 148 more since it was the same radio you noticed it on. Now I did my test with a 3/4 dead key, modulating to 3 or 4 watts. I have never switched the final stage with a carrier as high as 4 watts...
Agreed!
Well most CB's want more watts and big swing and the NPC mod will do this without being bleeding on adjacent channels. You can get more watts out and have a better wave form. A Galaxy style radio is the only one that this mod really works on. I have played with other swing kits and...
I don't think 9Lives has a broadcast station? He has a CB radio! So why would you compare the two? I agree that the NPC diode is not a magical mod. What it does do is keep your negatives from pinching off and if adjusted correctly it can have a pretty decent scope pattern without any noticeable...
I install the a 1n4001 in the R266 location. You want the diode in series with the factory resistor. If the waveform is modulating the negatives to much or not enough you can buy a 15 turn 5K variable resistor from radio shack and install it in place of R266. This will help you dial in a decent...
You guys are mixing up to common mods. You can run a mosfet up to 20 volts if your reduce the gate voltage like Robb and ExitThirteen said.
I think AA1QD is talking about is giving the finals 12 volts in AM mode which is common when doing NPC, PPE swing mods. In this case it is also called...
You gave up too soon, you can make the NPC diode look really good on a Galaxy radio. If done right. What location did you install the diode? Did you volt the final? Is your mod limiter defeated?
You waveform will not be perfect running a tone or audio through the mic jack. The factory audio...
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