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Magnum 257 Type Mobile Version 10Meter Export Frequency Range MHz MHz Frequency Steps 1KHz, 10KHz, 100KHz 1KHz, 10KHz, 100KHz Channels 454 454 Power Output AM 9W 9W FM 30W 30W USB 30W 30W LSB 30W 30W Multinorm ANL (Automatic Noise Limiter) CTCSS RFGain Memory Channels 5 ESP DCS MicGainHelloI have a similar situation on a Magnum 257 HP operating on SSB (AM and FM works fine) If i Transmit it works fine, but when i release the Mic button (after TX), in the bottom side were the RX level should be, it appear somth like a signal level 3 to 5 (constant and continous), but i can't get any reception at allOfficial website for Costsco Wholesale Shop by departments, or search for specific item(s)
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Magnum 257 cb radio manual-This is Part 2 of the first Review of the Magnum 257 HP outside the USA This second video takes a look inside the unit and also at the new RFX 75 output uniJun 13, 21 · 257 Band CB Magnum 257 Condition is "Used" Lovely radio, expanded, Nice clean condition, except for little blobs white paint on some knobs (not by me) does not effect the operation of this radio Comes with proper 'up/down' button mike, power lead, bracket and thumb screws Also has original operators manual and extra part for expanded
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Looks like "magnum 257 cb radio am fm ssb" has already been sold Check out some similar items below!Dec 14, 18 · Need schematic for magnum Magnum CB Radio Posted by w2agr on Jul 22, Mic wiring diagram Magnum DeltaForce CB Radio 1 Answer Turner Rk 56 mic Magnum DeltaForce CB Radio 5 Answers Cb mic wiring Magnum DeltaForce CB Radio 2 Answers I need to know the wiring diagram for a telex rkMagnum HP (High Power) 10 Meter Radio ReviewMagnum ServiceMay 06, 10 · This is what separates the Magnum 257 from the 257 HP model This little but versatile amp can be found on a number of Magnum radio products, such as the Magnum OmegaForce S45 HP and others They are also sold individually from various CB shops as an addon to other brandname radios on the market, such as Cobra, Galaxy, and so on
The entire frequency range of the Magnum 257 Increases or decreases the energy developed in the can be stepped through in 10 or 100 kHz increments Page 9 To activate the programmed offset frequency, press for programming instructions the FUNC button, and then press the SHIFT button once SHIFT is displayed on the LCD The 257 will 7The original Magnum 257 was a dual final radio with 1969 final transistors and was capable of around 2530 watts PEP The display was amber in color and the radio was very popular for SSB but many people faulted its AM performance as not being loud enoughThe Magnum 257 is a twin final radio and easily puts out 35 watts PEP on sideband The output of this radio will fry most if not all transistorized CB amplifiers The minimum amplifier to use with this radio is one with 4 transistors like a Texas Star TS500 or something with valves rated for 5060w input Do not use an amplifier with a
The 80 watt 257HP Magnum 10 meter radio It is the same as the previous 30w 257 Magnum radio modelThe Magnum 257 is a microprocessor controlled, user programmable radio combining high RF performance with a userfriendly environment The 257 is a 12 volt DC, HF transceiver designed for mobile use The transceiver utilizes the latest in surface mount production techniques This keeps the size of the unit to aMagnum 257 HP Mobile CB Transceiver Specs Manuals (0) Reviews (0) Prices (0) Compare Add a review Add to my shack Login or Register to upload images Find Magnum 257 HP rigs and spare parts on eBay We receive a small fee when you buy through this link, thank you!
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The Magnum 257 and 257DX were a digital style 10 meter mobile radio transceiver that was popular among both hams and CB operators alike Read All Reviews Below · Microprocessor Controlled Transceiver · to MHz Frequency Range · 30 Watts RF Output Power · Variable Power In All Modes · FM / USB / LSB / AMThe Xtreme Mic is a radio powered Echo microphone engineered for the Magnum 257 and 257HP radios by RF Limited The echo volume and delay controls are integrated and positioned on the back of the microphone If you want to increase your radios peak power and up your modulation upgrade to a Magnum 257 Echo MicrophoneThe MAGNUM 257 features a supercapacitor back up for the 5 memory channels The 257 be discon nected from a power source for approximately 4 or 5 days before the memory is lost 5 6 8 9 STEP NB MEMORY CHANNEL 1 (continued) MEMORY CHANNEL 1 After programming, this but ton is memory channel I See MLOAD MSAVE con
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Step #2 Take off speakerside cabinet Step #3 Find the CPU Reset Board located near the Front panel of the radio located behind the Microphone Connector Step #4 On the CPU Reset Board there are 4 jumper positions (CON1 / CON2 / CON3 / CON4)The Magnum 357DX is a microprocessor controlled, user programmable radio combining both high RF performance with a userfriendly environment The 357DX is a 12 volt DC, HF transceiver designed for mobile use The transceiver is configured in two separate components;Citizen band / "Freeband" / Export transceiver Frequency range depending on setting MHz (CB) MHz (Export) MHz (10 m) Channels/tuning steps 40 or 454 channels, or 1 / 10 / 100 KHz steps Mode
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In reference to the Magnum 257 mod, I just got a new one and there's been a slight change There is now a "reset board" inside the radio that contains a reset button so you don't have to short out the board to reset Also, the diode that you clip to get extra frequencies is no longer thereOct 10, 08 · NOTICE Please restrain your antiCB agenda in this thread I am asking for a honest assetment of this radio _____ In my search for a good fairly high powered and affordable single band rig for ten meters, I can only find the Magnum 257, and the MFJ Adventure radio I am very interested in the Magnum What is the general conscious on this radioMagnum 257 10 mtr/CB radio £8600 5 bids £900 postage Ending 27 Apr at 757AM BST 4d 4h Magnum S9 S980 S9 175 S9nx New Cabinet
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You may be also interested in Walkie Talkie Radios Motorola Radio Radio ReceiversOne example is the Magnum 257 Magnum International did many hours of engineering on this unit Most of this engineering didn't go into the look alike radios This radio has been hurt by other look alike radios produced by the same Korean factory Some were single final radios The distributors and dealers didn't go out of their way to pointGeneral (BTACF) General HP 40W OEM with Rebel Flag, With Dimmer Switch, Radio Faceplates Bob's CB (FTLPMiniBF) LPMini Blade FuseFuse Tap Adapter Dual Circuit Fuse Holder, Turns One Fuse Slot Into Two, 2 Amp Amp Rating at 12V, Power Hookup
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Aug 07, 19 · magnum 257 cb radio am fm ssb;Magnum 257HP 80w Magnum 257 HP 10 Meter Radio **April 14 ~ This is one of our top selling radios In stock AprilJune 14 This batch is likely the last new Magnum 257 HP's you will ever find Order now When they're gone they're gone!Oct 26, 15 · I'd recommend not buying an export radio and just get either a 10 meter or a CB rig that is legal But either way, have fun I think they still make the Magnum 257 and have a 357 model too It was a nice modern looking rig, unlike those 70's looking Galaxy and Connex radios
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President Export Radio on Amazon https//amznto/2F9EgNi AnyTone Export Radio on Amazon https//amznto/2Fa64 http//wwwcbradiomagazinecom We got ourBack to CB Radio Next Mobile Magnum 257 Type Citizen band/amateur transceiver Frequency Range 2630 MHz 1/10/100 KHz steps ChannelsModes AM/FM/SSB Frequency Control PLL Power Output AM Max 9 W FM/SSB Max 30 W Voltage VDCCobra Galaxy Uniden Striker Magnum 8 Band Microphone Sound EQ 4pin cb radio Brand New C $155 Top Rated Seller Top Rated Seller or Best Offer
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This is the newest version of the Magnum 257HP with the builtin RFX75 power section you'll get a lot of power in a small, compact radio As is the tradition with Magnum radios, the 257 has gone through many manufacturing updates, this is the latest model with the bugs from previous versions finally fixed and fleshed out Ideal for sideband operation in the 10 meter band and offering aBuy Magnum Cb Radio and get the best deals at the lowest prices on eBay!Magnum EC18XTR Overview ONLY COMPATIBLE WITH MAGNUM 257 and 257HP RADIOS!
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Dec , 16 · Call Sign 163dt307 Re Magnum 257 Internal Pictures required Post by dt307 » Dec 16, 1735 if its quiet in work i will whip it out of the car and do it later you can get the pics of the pcb and full schems on line from the midland alan site if i recall 163dt307chrisOct 15, 08 · Magnum 257 There is nothing wrong with this radio except what has been said about jumping every 10Khz,but technically speaking is even better than many amateur designed radios,its dual conversion receiver (107/455) instead of the single conversion HTX10,it has an excellent audio either on RX and TX,easy to operate and the best of all its veryMagnum produces of the most popular high end 10 meter radios available They are often regarded as the best 10 meter radios available The latest releases, the Raptor radios, have been a huge success in the 10 meter world As they are easily converted for CB use, we imagine they have been popular with CBers as well
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Puts my magnum 257 in scan mode and nothing you can do to stop it So I have two useless ones now Read more 3 people found this helpful Helpful Report abuse drew Top Contributor Photography 30 out of 5 stars Might work on other radios Reviewed in the United States on March 27, 19Go To The Defpom CB Radio Simulator software page Go To the Magnum 257 Mods Page Go To the Magnum 357DX Mods Page Go To the Magnum Delta Force Mods Page Go To the Magnum Omega Force Mods Page Go To the Magnum S3 Mods Page Go To the Magnum S9 Mods Page Go To the Maycom EM 27 Mods PageOct 27, · The CB Radio Talk Forum Looking to find other HAM / CB radio operators online?
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A high powered RF deck and a compact sized control deckJul 23, 01 · Yes, the Magnum 257 comes with a stock power mic with a channel selector on top I would have to say it is just as good if not better than the RK56 Ive been told that there is an adjustment inside the mic to turn up the power2970N4 AM/FM/SSB 1012 Meter Amateur Transceiver $ Ranger Connex 3300 HP 10 Meter Radio $
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Magnum 257 CB Transceiver With blue screen The latest type of transceivers are the microprocessor controlled models and the Magnum 257 is an excellent all round 10 metre radio with all the facilities to be found on any high performance radio Covering 2800 MHz, it boasts ECM microphone with up/down controls, 5 memory channels, digital S/RF meter, RF andIf you want to add echo to your Magnum 257 radio, this microphone will do the trick Does not require a battery Providing the best sounding echo in the industry, the Turbo Extreme 18 is the standard by all other echo microphones are comparedCB RADIO 3' PowerCord Galaxy CB Connex CB 10 Meter Radio Magnum CB 10 Gauge $1850 $845 shipping
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Step #1 Make sure Magnum 257 is turned off and disconnected from power source!Magnum 257 Modification Update 1 Make sure Magnum 257 is turned off and disconnected from power source!!Jan 04, 19 · Magnum 257 Mic Wiring Diagram CB radio microphone wiring guide To view microphone wiring configuration click on your chosen cb radio Notice the black mic plug has the numbers it is solder by numbers Used rosin core silver solder radio shack sells it Mic Wiring Stock 1Shield Magnum Documentation Project CBTricks
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The mic gets power directly from the radio Cyborg Robotic Voice, Endless Echo, Double Talker, Noise Reducer, Talkback and Echo Adjustment Click here to order Magnum 257 Owners Manual (30w model) Magnum 257HP Schematic New at Gi Joe's 80 watt version of the Magnum 257 ten meter radio Also see the left menu for Cb radios, Cb antennas and accessoriesThe CB Radio Talk Forum is for all my fellow radio enthusiasts, or upandcoming radio operators to seek or give advice Magnum 257 Receive mod by Cj1 » Sunday, 27 February 11, 421 AM 10 Replies 437 Views Last post by Radio 75 Monday, 28May 11, 11 · CB Radio Magnum 257 older version Mods Includes Radios Titan II RPSY485;
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Hook up radio to power and turn on for a minimum of 10 seconds Turn off radio and disconnect from all power sources Remove Bottom cabinet cover Remove (unsolder) Diode D2 This is the only NonGreat Savings & Free Delivery / Collection on many items Buy Magnum Cb Radio and get the best deals at the lowest prices on eBay!2 Take off speakerside cabinet 3 Find the CPU Reset Board located near the rear panel of the radio (see diagram below) 4 On the CPU Reset Board are 4 jumper positions (CON1 CON4) Each jumper position provides a different frequency
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Power Requirements V DC, Negative Gound Current Consumption 9 Amps Maximum Dimension 775 X 225 X 1075 Inches Robin Booth If your looking to build a station with full coverage of the 10, 11, and 12 meter bands, this one is it Rock solid frequency stability
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