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does anyone know what the mod is for adding talkback to my rci 2990? i read somewhere that i can remove D80 to add talkback to the radio. is this true or is there another way...i would like to hook up the talkback to the tone control knob, since the tone control was never functional on these...

just wondering, someone told me that i could cut D80 and it would put talkback in my RCI 2990. has anyone heard of this or is there a better/easier way to put talkback in this radio? also, i took off the orange slip covers that made the meter lights orange...does anyone know where i can get...

ok, so if i will burn up the transformer if i do it that way, can i put a heavy duty switch in line to switch from the power supply to the 12v input source?

and besides, money is tight so im looking for a way to get power out of my mobile without spending any. i just figured i already owned a big amp, why not try and put it in the mobile too? if i had the money to by another mobile amp, i would just probably spend the money for a 6 or 8 pll like an...

ok, let me ask the question a different way...is there a way to take my fat boy base amplifier and make it so i could unplug it from the wall, take it out to my truck and plug it into a quick disconnect (large) and modulate in the truck, then at the end of the evening take it back out of the...

i have a two pll (sc2879) fat boy base amplifier hooked up to my base. i want some pretty good power for my mobile, so i was wondering can i put some cables in the amp and run battery power into the amp and just bypass the built in power supply and get the same performance assuming im driving...

i have a magnum s6 175 in my pickup that i would like to put an amplifier behind. i want to go pretty big...say 600-800 watt dead key and around 13-1500+pep. i dont want to deal with puttin a motor maul in my truck, but i already have a 200 amp alternator i put on it. the magnum dead keys at...

ok maybe you people didnt understand the question. i dont want to run a stupid motormaul, i dont wanna have to run another battery. all i want to know is this....is there an amplifier around 500 watts (plus or minus a little) that will handle 200 watts peak envelope?????? if there is not...

i am trying to find an amplifier that will handle my magnum s6-175. it dead keys around 10 watts, and modulates to 200. is there an amplifier that wont kill the bank or have to re-tweak my radio that is around 400 to 600 watts? basically i am looking for an amplifier that will handle 200...

hey man, i ran a "cheesy" microphone on mine when i had it and everyone told me it sounded fantastic. it is made by superstar, its called a mighty mini base. its basically a little silver box with a ptt button on the front and a small stem sticking out of the top of it with the element on the...

i just had a cobra cam 89 given to me. it is in very good shape and very clean outside and inside. was wondering if anyone knew any modifications or tricks to really wake this radio up from the dead. i have already tweaked the power output on it. it now dead keys at 3.5 watts and swings to...

well guys, i figured it out. i know have my two 102" steel whips on VERY sturdy mounts. but, as i kept adding heighth to the whip, first with a 6" extension. that dropped my swr from about a 2.2 or so to down to about 1.6. then, i went to the local pilot and bought two 4" heavy duty springs...

i know a couple people that have had light problems with that same meter. as a matter of fact, i am saving my pennies to buy one. the lights have a loose solder joints in there. i think if you redo the solder joints in there you should have no other problems in there. if you dont have a...

a friend of mine has a set of browning coil antennas on his pickup and has a flat match all the way across. i thought about trying those, but i dont want the same thing, i would like to be different. maybe the k40 coil antenna i saw at the pilot down the road? are those worth the 70 bucks or not?

i tried a 6" shaft from my wilson 2000 trucker antenna on one side of the truck so that one of the 102's was higher, and it dropped from being a 2.2:1 to about a 1.7:1. if i add a shaft on the other side, it should drop the swr even more in theory right?

i am mainly going for the look, but i have a spot i like to shoot skip from, so a little directional bias is ok from front to back. i also believe strongly in the wilson antennas, i just dont like the look of the load in the middle of the antenna. i have tried just using one antenna, but with...

i just bought this amp about two months ago, and the pills that were in it were 4xsrf2072. are these the "stock" pills that go in the amp when new? what can i put in to replace them? also, when i got the amp, it put out 800 watts. then, without doing anything to the amp, it went down to 300...

anyone know or recommend some antennas for a mobile running 500 watts of power that work well in a co-phased setup? i have another post on here stating the problems with my 102's, so i am looking for alternative antenna options. i like the co-phase look (i.e.: two antennas), and want to run...

W5LZ, as far as the harness is concerned, it is a pilot truck stop harness. the way it is built is that there is no "t" connection anywhere. it is two seperate pieces. one piece comes from each antenna, and they do not meet until the connector that goes to the radio, that is the only spot...

with the amp in line but the amp off, it has a 2:1 swr. with the amp inline and on, the match drops to 1.5:1 on the low side and with the amp on high it drops to almost dead flat. the amp is attached with a 3 ft jumper from the radio to the amp.