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PPR RBT1 tweak and peak

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All radio's are factory set up and although you can tweak parts, this is usually at the expense of longevity or reliability.
To tweak a radio properly and ensure it remains legal, you will need the service manual, an accurate frequency counter and standard, a nice dummy load and an oscilloscope. If you turn anything inside and do not know what you are doing, you could end up stressing output components due to signal mismatching and possibly end up with spurious transmissions which can interfere with other electronic equipment.

Posted on Jul 09, 2014


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Hi there,
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Posted on Jan 02, 2017

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SOURCE: how do I set the clock on my Ranger professional with Blue Tooth

Press dimmer switch 3 sec, then when first two digits (hour( of clock flashes set hour using Phone Volume switches. Press dimmer again to set minutes, then when done press Dimmer once more to activate the clock. It displays in military configuration (e.g., 1:30 PM will read as 1330 Hrs) See user manual page 8

Posted on Aug 29, 2009

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SOURCE: I have a cobra Bluetooth

Hi michael, my name is John. Welcome to FixYa. Check your antenna system. Check your SWR they will check it for free at Radio Shack. A good antenna is a magnet mount, you can put it on your trunk or cab, as long as nothing is blocking it. Have any more problems, let me know. Thanks for choosing FixYa....John

Posted on Nov 30, 2010

  • 1 Answer

SOURCE: Ranger PPR-RBT1; when I try


Posted on Dec 30, 2011

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Realistic trc-455 how to peak n tuneit

No matter what any of the Internet Wizards say, you can not get any more power out of a CB radio than about 4W on AM. The output transistors just will not provide that. Peaking a radio is difficult/impossible if you don't have the right equipment to do it. I repair gear all the time, and I have found the the guys with the Golden Screwdriver do more harm than good.

If you feel that your radio is not up to snuff, then take it to a GOOD local repair centre. Trying to do it yourself will cost you much more in the long run.

I repair comms equipment for a living, and I see more gear come through that someone has decided can put out more power with just a tweak or two than I can count. It can not be done on a stock radio. It takes a lot of modification to make it happen, requiring replacement of the output transistors and tuned circuits. My experience is that if the receiver is not quite up to spec, then adjustment may bring it in line, but a typical guy just doesn't have the equipment to do it. Listening by ear and twiddling things will not do it, and in the long run, will cost you more than it's was worth.

Jan 09, 2018 | Radio Communications

1 Answer

Connex 3300

The manual is only available for purchase. Sorry.

So, I can't tell you where the R240 is located. But here is a link to buy the manual. Or here for a "tune-up" manual.

Hope this helps.

Dec 10, 2007 | Radio Communications

1 Answer

11 hp carb setting

Hello Dennis,
That is not too much information to go on, but i'll take a shot. I am gonna guess that this is likely a Tecumseh engine, but even if not, usually the main jet (when adjustable) is about 1.5 turns out from the factory. I would start in that range, and if you can get it to start, you can tweak it by running the engine at full throttle and adjusting it out further till the RPM's go down. Twist it back in some till they peak again and it should be good. Hope that helps.

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1 Answer

Ranger PPR-RBT1

Tommy, I know why you like the radio, but I must warn you that it isn't type accepted for the amateur band. (it would be the same thing as using an amateur radio for the fire department or sheriff for emergency uses.) I have looked for the mods to change it into a 10-meter radio, and they are not to be found. My suggestion to you is to look in a recent issue of QST about building a Bluetooth (c) transceiver for your regular 10-meter radio. I had to do the same thing for my HF rig which happens to be a Yaesu FT-857D. Fire me an e-mail if you want the schematics for the box. 73 and good luck!

Mar 03, 2014 | Radio Communications

1 Answer

Where can i get the ranger professional bluetooth ppr -rbt1 repair?

if its still under warrentee then send it back to where it was made. If not send it to a place like Bells cb in Fl. or another reputable shop. Inquire with them before you send it to them and they will tell you how to send it.

Feb 13, 2013 | Ranger TR-966 CB Radio

1 Answer

If i have a 4 channel 2000 watt amp, can i use 1600 watt wires if i only have 2 subs hooked up to it?

Yes, you will be fine. 4 gauge power wire is sufficient for a couple of reasons, the primary one being that most of the companies that are boasting 2000 watts for a 4 channel amp are off brand "web-retail only" companies, and they severely over rate the power output of their amplifiers. Secondly the supposed 2000 watts is peak power and not rms power. Peak power means how much power that amp can put out during absolue climax of the music or during a tone burst. RMS power is how much that amp will put out continously to your speakers or in this case, your subs. If you look at the spec sheet of that amp, in all actuallity you're probably only getting 200-300 watts rms even bridged.

On a side note, if you really want to push your subs hard, you might want to consider getting a mono block or "class d" amplifier and use that 4 channel amp to push your surround speakers. Class d/mono block amps are specifically designed to push subwoofers and will give you the most efficient power out and the best heat dissipation to withstand the output required to drive subwoofers. You'll get better bass and also more adjustability to tweak the sound levels coming out of your subs. Hope that helps.

Apr 02, 2011 | Car Audio & Video

1 Answer

I have a cobra Bluetooth model # ppr-rbt1 that will not transmit out and only picks up other people if there real close and only every now and then. When I key the mic the needle does not move. What can...

Hi michael, my name is John. Welcome to FixYa. Check your antenna system. Check your SWR they will check it for free at Radio Shack. A good antenna is a magnet mount, you can put it on your trunk or cab, as long as nothing is blocking it. Have any more problems, let me know. Thanks for choosing FixYa....John

Nov 30, 2010 | Cobra Radio Communications

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