Category: Icom 756 pro iii mods

Icom 756 pro iii mods

Goltigore / 01.03.2021

CPU Reset Procedures. CPU reset returns the radio to out-of-box condition: all memory channels are erased, all items in the set mode returned to default values, and all VFOs cleared. CPU reset procedure usually involves turning the radio off, pushing and holding specific buttons, and then turning the radio back on while still holding down the button combination.

Some newer radios have a "partial reset" available, as well as a full CPU reset. Partial reset will clear the VFOs and return the set mode items to default, but it will not erase the memory channels. Release the buttons after the display returns to normal.

ICAT - Serial numbers below push the button on the main circuit board next to the lithium battery. Serial numbers above hold [FUNC] button and turn the radio on. Partial reset: hold [A] button and turn the radio on. Partial reset: hold [VFO] button and turn the radio on. ICA - Push the reset button under the top access cover. ICA - Push the reset button in the aft left corner under the bottom cover. Partial reset: hold [SPCH] button and turn the radio on. MW] buttons and turn the radio on.

IC - Hold [MR] button, turn the power off and then on again. ICA - Hold down the tuning control and turn the power on. ICH - Hold both [S. Partial reset: hold 2nd buttons from the top on both sides of the LCD display and turn the radio on.

ICA - Hold [F] button and turn the radio on. Push S1 on the logic circuit board. IC-RP - Turn the power off for a few minutes. Partial reset: hold [MODE] button and turn the radio on. IC-M5 - Push the button on the main circuit board next to the lithium battery.When you subscribe, you receive only messages for the product you have subscribed to.

You can check your current subscriptions and remove yourself from subscriptions at any time by visiting the Reviews Home page and clicking on the 'here' box under Subscriptions.

ICOM IC-746/756/PRO Series CCFL-to-LED Backlight Conversion

If you have comments, questions, or problems with this procedure please write to the Forums Manager. We'll send a copy of the review along with your introduction.

Send To:. To build the largest and most complete Amateur Radio community site on the Internet. This project involves a management team of volunteers who each take a topic of interest and manage it with passion.

The site will be something that everyone involved can be proud to say they were a part of. Toggle navigation. Forgot Password. Reviews Home. I still own them all. In addition, I've acquired radios from almost every company, past and present.

From Allied to Collins. Today in I can give my latest 'opinion' of the old PRO. I bought it in Tokyo while on business, the week it was announced. Since then, I have added aa and a Kenwood TS to the main position. Just higher vertical resolution. In addition, using the preamp! The newer Icoms use a downstream gain reduction when using the preamps.

So it's not an apples to apples comparison. If you expect a big jump is s-meter level, you will be disappointed, but the newer radios WILL hear weak signals better. However, in my low noise, rural location, the and with Pre 1 are almost identical to the PRO with Pre 2 engaged. If you can find one in good shape, for cheap, grab it.

The screens can be 'enhanced' with a kit from a VE3. Mine is still perfect. They have the same display. I hand carried mine back in Business Class and it has been the best radio I have ever owned in 55 years as a ham. It was an easy repair.When you subscribe, you receive only messages for the product you have subscribed to. You can check your current subscriptions and remove yourself from subscriptions at any time by visiting the Reviews Home page and clicking on the 'here' box under Subscriptions.

If you have comments, questions, or problems with this procedure please write to the Forums Manager. We'll send a copy of the review along with your introduction. Send To:. To build the largest and most complete Amateur Radio community site on the Internet.

This project involves a management team of volunteers who each take a topic of interest and manage it with passion. The site will be something that everyone involved can be proud to say they were a part of.

Red Wave Radio

Toggle navigation. Forgot Password. Reviews Home. Time Owned: more than 12 months. Fun to use Find one thats in good shape Take care of it as you would any high end radio and it will last you for years!

A bit older today but what fantastic radio Time Owned: 0 to 3 months. I've had my Pro 3 for several months now and really love it. There are numerous other rigs here which get little or no attention now that the Icom is part of the mix.

The feature set for whatever mode you might choose is extensive.Built the cables. Receive audio works FB. Built the TX out cable with a. My transmit audio is very weak and compressed sounding. Sounds like it is being clipped badly. I turned off compression on the rig and bought the gain down.

But it still sounds very bad. Without talking, it's quiet, so don't think it's RF getting in.

icom 756 pro iii mods

Tried on different Android devices and it stays the same. Is this something that can be adjusted in Mumble and just specific to the radio? Unfortunately, no scope. Seems there was at least one person that went this route the person who wrote the instructions.

ICOM IC-746/756/PRO Series CCFL-to-LED Backlight Conversion

So what I did should work, it just bypassed the RJ Looking at the schematic, should be fine the way I went. I guess I may have to run the output for the microphone into something I can listen to.

Maybe a small amp or the like to make sure it's not something with the sound card in the RigPI You can adjust levels using a program called Alsamixer, as described in RigPi help. Yep, plugged a headset in and audio is ok. Turned the RF completely down and the audio is better.

So it's got to be RF as Perry suggested. Never had anything that was quite this sensitive to RF. Have had RTTY terminals through the mic in the front. Now got to figure out where the culprit is. Another day Thanks all and thanks for the kick Perry!! This cannot be undone. The Group moderators are responsible for maintaining their community and can address these issues.

New 60M allocation on ICOM IC-756 Pro III

Report to Groups. This includes: harm to minors, violence or threats, harassment or privacy invasion, impersonation or misrepresentation, fraud or phishing.

Note: Your email address is included with the abuse report. That can be RF getting into the mike input If you have a scope look at the audio going into the mike input and put the rig on a dummy load. Adjust the levels for good sounding audio then put the rig back on your antenna. If the audio goes to heck it's RFI at work. Ken Florence. Yes Larry, that is what I followed. Hi Perry, Well I am into a dummy load and probably only using about 5 watts of power.

Howard Nurse, W6HN.JavaScript seems to be disabled in your browser. You must have JavaScript enabled in your browser to utilize the functionality of this website. Please take a few moments to listen to these awesome audio demonstrations. If a picture is worth a thousand words, these recordings are worth a thousand pictures. Listen to the fascinating procedure and the stunning results. Notice the dramatic improvement in signal to noise talk power when the EQplus compressor is activated.

Our thanks to N4FZ for making this recording. The audio from W2GGI exudes robustness. Stations all over the world have asked him what he is using to sound so good. Take a listen to Bob's audio.

Recording courtesy of NA1A. This high-quality signal from W6OBB is pleasing and robust. Recording courtesy of NU9N.

This microphone had very little low frequency output. Examine how the audio becomes more piercing and penetrating when equalization is set for substantial high-frequency content. This enhances articulation and boosts apparent loudness. Hear a thin, tinny-sounding microphone become more full and pleasing to the ear.

In this example, the microphone needed boosts in the low and mid-range frequencies. QRM inside the shack? Listen to the background voices go away in this noisy shack.From: RigPi groups. It is suppose to come with the cable but some old stock in the stores are missing the cable. Could you clarify this? The Tech I was able to reach seemed somewhat familiar with this but stated it should be there. Oh well, project on hold until I get this jumper block if they mail it to me.

Actually on the bottom of the top board, so you have to remove the 2 screws that attach it, turn it over, and you will see the socket for the jumper block. If you are good at DIY, you can use ga insulated solid copper wire for the jumpers. This kind and size of wire was commonly used for household telephone wiring and Ethernet wiring found in some homes.

Their catalog states they come with the jumper block but the ones in the stores are missing them. Since you didn't get one you need to call MFJ and tell them it was missing and they will send you one free of charge. If they don't know what you are talking about ask for Richard. Harold From: RigPi groups. Or was it simply forgotten when the QSG was written? I offered it as information in the event that you were wanting to work with this straight away. You could wait until you receive the jumper block from MFJ and then you wouldn't need to do this at all.

Unless I am missing something I wonder if the jumper block supplied with the internal SignaLink would also work with the RigPi? It would seem rather strange that it would but Bruce referenced the jumper block supplied with the Rigblaster, for some reason I am curious since very little documentation outside of this forum seems to be available on this.

Is it unique only to some Icom and other radios? The RJ and those jacks are in parallel with each other. If you choose to use the RJ cable, the jumper block is required. It is not required for the 3. There are files in the file section of this forum that provide more information on the jumper header.

You probably won't have both plugged in at the same time but I did once and looked at the schematic to see what was going on. That cable has TX and RX broken out in two 3. It served well for several years. Thanks for being there for us, and to all. This cannot be undone.

icom 756 pro iii mods

The Group moderators are responsible for maintaining their community and can address these issues. Report to Groups. This includes: harm to minors, violence or threats, harassment or privacy invasion, impersonation or misrepresentation, fraud or phishing.For more on the iCOM settings, see below.

These had no microphone preamplifier, it was built into the microphone. The ADI and ADIM include blocking capacitors that prevent the phantom power supplied by the radio from affecting the performance of the dynamic elements.

If you try to use the ADiC or ADiCM adapter cable on a dynamic-element microphone, the lack of a blocking capacitor will cause the element to seize up, and no output will be heard. Heil Sound recently introduced the model PR dynamic microphone, which sounds simply wonderful on modern Icoms. This voltage must be blocked for use of Heil Sound dynamic elements. Click here to view pinout information for hundreds of rigs, mics, and connectors. When using a dynamic element on rigs like iCOMS, which were designed for electret microphone elements, one must not be afraid to do two things: 1 utilize the full range of Mic Gain available, and 2 turn on the Compression, using the Compression Level control as a secondary Mic Gain control if necessary.

Monitoring of your signal is particularly important when setting Menu item Q4, which has a huge effect on your transmitted tonal quality. But forget actual numbers. Always adjust mic gain by watching the ALC meter. Hold it for three seconds to change one. Quickly tap it for the other.

Wide is 2. Mid is 2. The iCOM is a terrific value. Great receiver, full coverage. It will NOT support dynamic microphones.

icom 756 pro iii mods

The supplied hand microphone — as ALL hand mics, sounds hollow and mushy. They will be very low in gain. The iCM is the perfect match for the iC Set the microphone gain to 70 and with the stock bandwidth of 2.

Set the Transmit Bandwidth to Wide Hzand you will be the talk of the band!

icom 756 pro iii mods

Just contact your dealer to get the HSTA Adapter Cable, and the Traveler should work perfectly using the factory default settings on the rig. Truly a game changer in the amateur radio transceiver market. The is a terrific value. Great receiver, full coverage through 6 meters.

The PRO 7-iC has the appropriate cable included and will sound wonderful with a Usual mic gain will be set between 65 to Pay attention to the ALC.

Compression On at, 1 or 2. Never any more.

ALPHA TELECOM: ICOM IC-756PROIII COM DISPLAY MANCHADO e com BAIXA RESOLUÇÃO

You will want to listen to your signal in a second receiver and make small minor adjustments to tailor the audio you desire. The receiver also has a great equalization circuit so adjust the treble and bass to your listening preference. Borrowing technology from the recording studios, DC power is applied via the mic line to energize the electret elements used in stock Icom microphones.

Of course, the voice signal is AC, so DC flows one direction while AC flows the other direction — all on the same cable. This is pretty cool until you start having RFI problems, but we shall ignore that possibility for now. To use any dynamic element on these phantom powered inputs which should NEVER be applied to a mic input of a radio transmitter, IMHOthe input must be de-coupled so the mic audio AC signal can pass through to the mic preamp, while simultaneously blocking the DC voltage from reaching that mic element.

You may get by with a.


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