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I used the link and a few other of Andy's post for reference
https://www.worldwidedx.com/threads/uniden-pc122-low-am-modulation.261212/
Ran a couple experiments on this chassis. After a tune up, I did the NPC with the resistor value being determined by using a 1k pot to find the value at...
Been wanting to do a before and after for a while now. Did the NPC to the radio adjusted the resistor for 90-100% negative modulation and limiter in tact. Audio generator was kept the same through the videos till the last video. Second video was taken with R171 removed (limiter circuit). Last...
Strykers has been a selling like hotcakes recently. Besides the bling bling lights and cosmetic features, the output in watts seem to be very attractive. Knowing that the circuit layout is shared amongst similar radios ie Lincoln II, Anytone 6666 and alike, the PA section is drastically...
Tis the season. I'll share a few steps I did to add some modulation to this cheap radio. Schematics for the newer Uniden radios are not online, however if you scrub the President schematics really good you can find a model that is its cousin minus a few components. Using the cheat sheet from...
I’m sorry the OP deleted his thread. I dislike putting energy into a post on the open forum to have it deleted due to feelings? Anyhow, like all post here , for the benefit of helping everyone here . This is the original post
From the OP
After Working with a very smart member of the community...
I dislike the way they did it but not the idea. Anyhow they replaced R21 1.2k with a 1k Pot and 500 or so ohm to ground labeled it RF Power. I’d rather they did the R174 mod and 10k pot there.
Tried to toner transfer but that was giving me a hard time so I went and tried another free software. Still need to learn the whole 3d modeling though. Hope the hole gets drilled out correctly.
Not sure why the Top Gun gets the bad reviews . I like them and always try to do my research before buying. Lately while browsing through schematics, I seen something cool. The K40 had a good mic circuit and sounded pretty good also. The schematic shows an opamp with a diode combo, resistor and...
Was watching one of those silly super duper cobra videos. The solder slinger was mentioning that the light rings were going for $17 on ebay. Educate yourself consumers, $5 from Eric over at Palomar aka EKL Imports. Just doing my weekly good deed and staying away from these recent Return from the...
I know the answer but I still have to ask. I know that these radios are locked by the TURF file loaded by the distributors. Being that other radios like Kenwood, Yaesu and many other amateur radios can be unlocked fairly easy. I do have a 1500 that is unlocked. I also have a few 1000’s that are...
Got a fixer upper and during the PLL alignment I cannot tune VC2 to pull in 17.305mhz. Best I can do is 17.30430mhz. What that equates to so far is my RX being roughly one channel too high. On 27.2050 on the radio , I can hear my signal generator at 27.2150 however I can transmit on frequency on...
Many variants of this wattmeter. Does anybody have a schematic for it ? I’m changing LED colors but was wondering if the wattage could be adjusted to read more watts and also if the resolution (digits) could be increased?
Bought the rig as is and found that the previous owner had swapped power supply connectors going to the display board from the AVR board. On HV and HG were 9 volts AC and the F and FG were gnd and -34v respectively. When I first got tgevrig, the filament wires were glowing red and partial...
i have a couple of 148s I'd like to add a frequency display to, like a 148f. I got an 88 front and a 148f front. I also have the counter board from a 148f. Besides the fact of rerouting the push button wires. What's needed to get the counter working right?
His screen name is 2112(not the real 2112 and his rubber raft) also goes by Showtimenga. He was supposed to do work for me and its been almost 4 months with nothing to show for it, hasn't returned calls and I now find out that he has scammed other people here and other forums as well. His name...
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