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try to see if the power varies with temperature. like, the amp does this much power when cold, and this much power when warm. LC

what are the specs of a standard 10.240 crystal? like, load capacitance and such... LC

the stalker ix is different from those radios. the stalker has an MB8719 PLL and those have the UPD2824.

Great thread idea Jim! My radio journey didn't start with CB, but it sure didn't take me long to find it. When i was about 8 years old i was all about hanging out in our garage "building things", which really translated to me getting a hammer, some 16 penny nails and nailing my dad's nice...

yes you should add a choke to the feedpoint of the antenna, and no you should not use the "wrap coax around a form" method. go on ebay, and look for a place called palomar engineers. they sell snap on ferrite chokes that are made for this purpose and they work better than the coax method. they...

glad to see someone else already found your problem, i guess i should have looked at your pics! be sure to come back to this thread after your TX alignment and let us know how it all went. LC

Can you confirm a couple of things for me? first, does the radio receive other stations at the expected volume level? I don't mean "i can hear static", i mean "i can hear people talking without the volume cranked up". next, you say you have no TX modulation. can you please tell us how you are...

I understand the reasoning behind the use of 16LSB, but there are also valid reasons why it is not the ideal place for SSB DX communications, especially when the conditions are good. So i'll play devil's advocate here and list out the reasons why i think 40USB is a better spot for us. First, if...

it actually would not. pretty much all the circuits in your radios are run off of voltage regulators that take in a larger voltage and regulate it down to a lower voltage. these devices do not change the lower voltage output just because the input voltage dropped by a volt or so. they are...

the way i see it, when any of us turns on 38LSB and it's going crazy the next step should be to go to 40USB and make a CQ call. "CQ WWDX" doesn't have much of a ring to it though... LC

I love that idea. Channels 30-33 seem to be a bit less crowded in my receive. SSB on those channels could work well. my vote for a day would be a thursday or a friday but i figure most will want a weekend. LC

use the instructions for the galaxy 979. should be R264 that you remove. LC

VSWR, wha transistors did you use to replace the final and driver and where did you get them from? looks like this radio used a 2SC1307 final and your chances of getting a real one of those is pretty low. if you got it on ebay you can be pretty sure its a fake. the driver looks to be a 2SC2020...

Whew! finally an answer after only 14 years!!! LOL

1iwilly, you can use L46 and L45 to balance the power between channels 1 and 40. it takes a bit of trial and error but you should be able to get it even across the 40 channels and more if the radio has them. also, as others have said, only a known good dummy load should be used. you can also...

servicing the radio should be well within the skill set of quite a few techs. your main issue would be that cracked plastic because unless someone has another stalker 9 to pull from, i think you're out of luck on that one. its the plastic that goes over the meter, LEDs and channel display...

Hi all, in some 8719 dual conversion radios you can remove C232 in order to get rid of the muting between channels. in others (like the madison/grant xl) you would remove TR47. I probably have the numbers for the single conversion chassis written down somewhere... LC

you made sure to talk politics right Jim? LC

here ya go! https://www.ab4oj.com/test/pwrmeas.html this also helps people figure out just how many watts they can measure safely with their scope before they might need the 10:1 resistive divider described in the article. LC

remember that a scope is a voltmeter and you are not 'feeding RF into it' when you connect it's probe to a circuit. you can put that probe right into a wall socket and measure the sinewave of your home AC power. i regularly use my scope to calibrate wattmeters for people and for myself. this...