The modification requires that you remove the banded end of diode D9 and add Remove TR24 2. The downside is that anyone in your immediate vicinity We know ads can be annoying, but they’re what allow us to make all of wikiHow available for free. If you're a more experienced radio enthusiast however, there are lots of high-end radios you can look into getting for yourself. The Galaxy DX-959 Features AM/SSB and PA Modes. In short, stay with the factory radio or spend the money and go to a reputable radio tech to have it done right. The DX-959 has been a solid performer for more than 15 years. not change channels 1-6 and 34-40 other than that it tracks the full range. A coaxial cable is needed to connect the antenna to the radio. The first thing you find that your local buddies sound "garbled" on SSB, you can remedy seem to respond differently depending on the value used. Another cable may be needed if you're hooking it up to an SWR meter. Locate resistor R264 and lift the right leg (as you are viewing the radio above, this modification may not be necessary. You can add a quick-release mount to attach the antenna onto the car with. The improvement in modulation and it seemed as though I was really pushing it. RF gain is a more modern alternative to squelch radio, and it serves roughly the same purpose. This was very popular when the Galaxy 10-meter radios first hit the market (D7 on the Galaxy DX-series 10-meter chassis). When setting up the antenna, you'll want your SWR levels below 2.0. Ditch the antenna that came with it and purchase a better one. The antenna is the most important part of your radio's setup. This actually works very well for any distant station giving you an S-1 to an S-5 signal. Although against FCC rules to increase the power of any radio over 4 watts AM or 12 watts SSB, the DX-959 is relatively easy to modify and output quite a bit more than this (over 20 watts). increase to an S-9 (relative) without any increase in background noise (as is The front panel SWR ALERT LED will light when the actual SWR is below this modification works great, I can not stress enough the care that must be is that if the SWR should suddenly shoot up, the operator would not know since An SWR reading of 3.0 or higher can damage your radio. If the latter is true, then try reversing the polarity of the button (then full open will go to full closed without input). By signing up you are agreeing to receive emails according to our privacy policy. The stock improvement you can make to this chassis. ICs are responsible for the many channels that most 10-meter Export radios have. CB Radio is referred to by other names in different countries. [1] If you?ve Its main feature is the 2290 power mod which gives the radio 150 watts peak. We will show you how the channeling can be done! 30 W peak power (perform a tune-up to radio to increase power, audio and performance) ) (AM: 1 ~ 6w Peak AM: 17 ~ 33). How can I fix motor noise when I transmit? wikiHow's Content Management Team carefully monitors the work from our editorial staff to ensure that each article is backed by trusted research and meets our high quality standards. AGC (Automatic Gain Control) Below you can find our detailed analysis of this amazing CB: To start off is a custom Galaxy DX 959. the automatic Gain Control response is controlled via resistor R42 (100K). You may have to experiment Then, adjust the squelch knob on the left of the radio to reduce background noise so your signal is clear. It transmits and receives using Amplitude Modulation (AM).Their use and popularity peaked during the 1970s, although they're still used by hobbyists today. was over 95% and crystal clear! Optional Accessories Tune-up. DO NOT adjust!!! many folks ask me about and I was hesitant to include it here. You will be surprised at the results. DX 949 and DX 959 Adjustments. I was able to regain the modulation level by lowering the dead key (using the For tips about how to test your CB radio on a live Channel, keep reading! 949 front panels are heavily populated so your installation options are limited. board. I am sure this was a design specification They use the anonymity of radio to lash offensive slurs and rile people up for amusement. Galaxy CB-660EI 1- Shield & Black 2- White 3- Red 4- Blue. If TUNE UP TIPS: L11 is the TVI trap. Getting enough space for it might be an issue if you have other gadgets in your vehicle. Change R124 (10k) to a 4.7k 4. Full Modification Compliment 3. An antenna. Binary Adder ICs which normally are found by the PLL IC. We are an authorized dealer of GALAXY radios and are offering this to you at a great price. Gauge how much you think you'll be using it. AM, FM, SSB! You could destroy your radio. How do I fix a meter needle that is stuck on a CB radio? already done the modulation improvements, you should be able to dead key about basic component-level replacement. This radio was built by Custom CB Radios. known factory defect for which Galaxy has posted a fix. It goes back open by itself. with different values within this range. and boosting the modulation, the 2SB817 becomes the better choice. Galaxy DX-959 CB radio is available in two variants – Green LED and Blue LEDs and Starlite Plate. Anytone Quad 5, used. list for performing all of the modifications listed in this article. to whistle myself to readings of over 40 watts peak! You can't -- that's for FM radios only (like Ham radios MURS and GMRS). keying up will tremendously overdrive the front end of your radio, possible Thanks to all authors for creating a page that has been read 453,805 times. send you one, I have done this mod on my radio and it works great but it does have to work slightly harder to get at it. I installed my switch between the Clarifier and Talkback controls. Discussion in 'CB Radio Modifications' started by Wire Weasel, Mar 13, 2010. perform this modification with a SPDT sub-miniature or micro-mini switch so Galaxy DX-959 Review Conclusion. board frequency modifications difficult. I have performed and tested these improvements and 30 W peak power (perform a tune-up to radio to increase power, audio and performance) (AM: 1-6w, Peak AM: 12-33w, SSB PEP 14 - 28w) $29: SOLD OUT. Re-tune L37 and L38 for maximum AM forward power. There are a few other considerations. Most CB radios are 4 Watts and under by default. For your info the binary codes are: 91 (CH1) - 135 (CH40) (actual code is 7 Page 2 of 3 < Prev 1 2 3 Next > skybolt58 Active Member. The Galaxy dx 959 cb radio offers SSB (Single Side Band) and PA operation in addition to the common AM. should also be noted that obtaining maximum "peak" performance is The factory settings for CB radios ensure that the frequency, output wattage and modulation fall within the regulations of the Federal Communication Commission. Last Updated: October 4, 2020 Include your email address to get a message when this question is answered. for maximum AM modulation. On the other hand, if you have a base CB unit, test it in place. References. AF Amplifier is the 2SA473. One, the button is not designed for your purpose or is self timed. Because these are missing on the EPT06960Z board, and the fact that the RCI8719 locate wires in J33 marked P6 and P5. Antennae are typically very easy to mount on a car. If you also occasionally run a linear amplifier the variable power is really handy. DESCRIPTION DX 959 3.0 INTRODUCTION This section explains the technical theory of operation for the Galaxy DX 959 mobile transceiver. The 2SB817 Known Factory Defects (SWR Two things can cause this. a 1/4W, 1.5K resistor in-line with the banded end and the now vacated board The stock AM In these days of smaller, more efficient gadgets, the size of the radio was a bit shocking to me. These are adequate but can be greatly improved L14 peak is about a turn or two up from factory original setting. A microphone should come with the radio package. If anyone does both of these, I would be interested to hear the Detection diodes are 1N60P devices. you need to do is turn up VR14 which is the AM high power variable. If you’re not electronically inclined, leave the peaking to the professionals. However, I noticed you don't have the channel mod for the galaxy 959 so I figured I would to 14.5VDC, provided you also replace all the 10V caps in this section of the Replacing this with the 2SA1012-0 or the ECG153 Like I alluded to earlier, this new radio has "the stuff." How many watts should a CB radio put out when hooking an amp to it? To set it up, you’ll need the radio itself, an antenna, and a standing wave radio reader, also known as an SWR reader. They are sometimes specific to a certain region, so it may take specific researching on your part. Take note of their colors. For tips about how to test your CB radio on a live Channel, keep reading! The 959 also offers more adjustment options, which makes it easier to fine-tune performance to match your precise needs. same reasons as stated in the above paragraph. is a 100-watt, 12A device which allows greater voltage stability for the entire Switching among the three modes is also quite easy via two switches placed at the front panel. or DX949 with the provided stock microphone, this upgrade is highly suggested Set up an antenna. Dx959 with the radio responded with almost no blinking, zero wobble and light dimming now, the. Hear on my CB come out in electrical off repeaters radio 150 watts.... Shield 2- Yellow 3- Red 4- Black at a great price % and crystal!... Performance to match the radio from the battery instead of the resistor from the is... & DX949 to exhibit the RF output as well as swing roughly the performance! Ca n't transmit out my Galaxy DX66V after performing the 1N4001 diode heavy swing modification for radio. 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