Proc level: 20. Now, I will explain how I arrived at these settings which are particular to my voice. Third filter 2400 Hz Menu 097 Frequency Turn the Clarify/VFO knob to set this bandwidth of 2-28 (200-2800). The next step is to turn off the Noise Blanker and any DSP Noise Reduction systems, as well as any DSP bandwidth or shaping features such as Yaesus Contour control). A few tweaks in the Icom menu is all that is needed to adjust bass and treble to YOUR taste. Over modulation will increase the radios IMD (bandwith) and that can only be seen with outboard spectral analysis or careful signal monitoring on the other end. Contact the site with comments or questions. Don't forget to push and hold MENU for 2 seconds to exit and store new settings ! If you try to use the AD-1-iC or AD-1-iCM 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. The LSB settings are inverted from USB, so a setting of -10 on LSB and +10 on USB should sound the same. The Noise Blanker will hopelessly distort your signal, by its nature, and the DSP features will perturb the received envelope, and youll never know what your signal truly sounds like. )for casual contacts, Mid Transmit Bandwidth (2.4 kHz.) I have noticed on my FT-950 that the Q of the filters appears to correlate with the BW number. This reduced the audio level to 15 mV. . In the amateur radio field, we arent dealing with music material but the adjustment affects voice the same way. These products require a bias voltage to power their internal F.E.T. Start with Menu #16 (Mic EQ) Off. Transmitter IMD specifications on most amateur transceivers were never all that great. If you have more than three frequencies which need attention you have more problems than an equalizer is going to fix! Note that these are starting points only, and the best setup for your voice, your microphone, and your operating objectives may differ. FT-991A Mic Eq. Most male vocal power is right in the 500 Hz range. A solid mic, if you EQ properly Time Owned: more than 12 months. Menu 091 Frequency That is usually notched a bit but there are voices that need some energy around 1000Hz attended to and you just have to make that decision by listening and select the midrange parameters. I swapped out the mic cable with RG-174 and connected the mic cable's braid to the 8-pin connector's shell instead of the mic ground pin. The all-important issue is the third filter where you achieve speech articulation. INITIAL SETTING OF YAESU Parametric EQ and HEIL PR Microphones. The High Boost 2 selection will suppress the lower frequencies, and give you more sparkle on the high side, for good communication-quality audio. The third control of the filter is either - or +. SETUP INFO FOR W2IHY 8 BAND EQ, EQ PLUS, and Yaesu FT-2000. If you set the Bandwidth control of the . No apparent reason but it is true. The Yaesu FTDX 1200 TX eq and processor setup guide. Contact the site with comments or questions. For use on earlier Icom 8-pin (round) equipped rigs, use the HSTA-I8 adapter cable. Kenwood rigs present relatively few problems in interfacing to Heil products. Set Menu #65 and 66 (TX Carrier Shift) to +200 for DX work; leave at default (0) or +100 for local work. Follow the instructions on pages 28 and 29 of the K3 Operating Manual. Or leave it off. With parametric EQ you can change the parameters of the EQ system. This allows you to set your processed audio up for DX if you wish without disturbing your rag chew settings. You may be able to adjust to 100 as long as it doesn't overload and sound too bassy. SMOKE CITY!!! The iCOM 718 is a terrific value. You want some big boomy low end? These also works great with the MH-31b8 original hand mic. Monitoring of your signal is particularly important when setting Menu item Q4, which has a huge effect on your transmitted tonal quality. Set Menu #59 and #62 (Carrier Shift) to +50, and Menu #60 and #63 (Carrier Shift with Processor On) to +150. If you need any help, we are glad to assist you with writing your article based on the information you supply. for DX AND CONTEST work, These are initial settings to get you started with a great sounding signal. Several Kenwood rigs have DSP and other settings that will allow the operator to adjust the response of the radio to your speech input from the microphone. Just contact your dealer to get the HSTA-706 Adapter Cable, and the Traveler should work perfectly using the factory default settings on the rig. W2IHY 8 BAND EQ and EQPlus settings for the Yaesu FTDX-2000. If you can tap into your transmit audio - before the rig - on one track and then your demodulated signal on another, you can tell quickly by listening about any adjustments you should make. Try 200 2800 first. So many times I hear stations with so much low end you cant understand what they are saying because they have not achieved good mid-range speech articulation. This will keep the DC factor into the mic preamp circuitry. All of the new Yaesu series 9000, 5000,2000 3000, 1200 and the FT 950 have a balanced audio input on the audio board but Yaesu does not use it. Menu 83 : 3000 (TX bandwidth) . Now, I am not telling you that this is the end all. Kenwood HF transceivers have long been designed for dynamic microphone inputs, so the microphone amplifier stages have plenty of gain to accommodate the wide range of Heil dynamic microphones. DSP and Carrier Point SettingsYaesu has, since the 1980s, provided means for adjusting the carrier insertion point (identical to IF SHIFT used on receive, only this is on your transmitted signal). And I dare say, microphone gain is the one control on modern transceivers, almost no one gets right! These rigs use a three-band parametric . Press the (PROC) button momentarily so MIC EQ shows up on the display. It was a big help. - YouTube 0:00 / 8:38 Yaesu ftdx1200 EQ settings & W2IHY. Menu 00 : Adjustment Level -21Menu .3 : Adjustment Level -16Menu .6 : Adjustment Level -14Menu .9 : Adjustment Level -7Menu 1.2 : Adjustment Level -5Menu 1.5 : Adjustment Level -1Menu 1.8 : Adjustment Level +1Menu 2.1 : Adjustment Level +4Menu 2.4 : Adjustment Level +6Menu 2.7 : Adjustment Level +6Menu 3.0 : Adjustment Level +6Menu 3.3 : Adjustment Level +6Menu 3.6 : Adjustment Level +6Menu 3.9 : Adjustment Level +2Menu 4.2 : Adjustment Level +2Menu 4.5 : Adjustment Level 0Menu 4.8 : Adjustment Level 0Menu 5.0 : Adjustment Level0. In my case I used a modified Yamaha CM500 electret condenser mic with a frequency response of 100 Hz to 20 kHz.As is, the CM500 output is 150 mV (batteries installed). There are situations where you may want to use one of the Heil ICM microphones or headsets made for iCOM using the Heil iC element. KG4TGP. I guess that's not all that bad, but there is precious little information there, mainly sibilance. However, the process became a hobby in itself. If you experience RF getting into the radio thru the microphone, try adding a clamp-around ferrite choke or two to the mike cord where it goes into the radio. See the FTDX10 FUNC > OPERATION SETTINGS > TX AUDIO settings. Set the TX BW to 400 -2600Hz for DX/Contest work. Flex and Apache units do very well or a real spectrum analyzer. The table that follows details starting points for operation using two main categories of mics: the articulated elements (HC-6, HC -7 and HC-5.1 based mics), and the wide range elements, typified by the iCM, Handi Mic iC, PR 781 and the PR 20/30/40 genre. Notch or Boost. Do you have a wide range studio or broadcast microphone, or perhaps one of Heil Sounds high-articulation microphones using the HC-4 or HC-5 elements? Set Menu #29 (Bandwidth) to 3000 Hz; set Menu #30 (Bandshift) to 100 to roll off some Bass response, and set Menu #31 (TX EQ) to H for DX work, or leave it at C for local rag-chewing. Set Menu 51 (Equalizer) to 1 or 2 for DX work, 3 (best) or 4 for local rag-chews. Truly a game-changer in the amateur radio transceiver market. Now to get acceptable audio spend an almost equal amount of money. Another checkbook issue. )Pin 1: Microphone In*Pin 5: PTTPin 6: PTT GroundPin 7: Microphone Ground. Dont even try to listen to yourself using a speakerfeedback does not help you optimize your signal. Copyright 2023 Heil Sound Communications, Inc. A Parametric EQ is just as the term implies. On Yaesu FTDX 3000 (and similar radios), please try the following settings for the compressed mic menus, which are 159 to 176 on the FTDX3000: P-EQ1 FREQ 200 (adjust the low bass freq center point in Hz. A few tweaks in the Icom menu is all that is needed to adjust bass and treble to YOUR taste. Kenwoods exciting new TS-590S transceiver promises to be popular among active operators throughout the world. The menu numbers vary from radio to radio and are not even consistent within the vintage of the FTdx9000, so follow these guidelines according to function. Now set the transmit bandwidth (either with compression on or off) to Wide, and transmit while you listen to yourself in the monitor receiver. Press the Menu and rotate the SELECT knob so it reads "TX BPF" (Transmit Band Pass Filter). A Parametric EQ is just as the term implies. with the audio signal level adjusted to get 100 W RF with no ALC deflection. It's a difficult subject to broach without someone feeling as if it is their toes that are being stepped on, but here goes. Ehh. The first step is to disconnect the antenna on your monitor receiver. No clarity. Transceivers are well over $1000 as the normal. Anti-VOX: About 10% or where needed (keep in mind that the speaker level will affect this a lot). Icom HF rigs fall into three distinct categories, as far as microphone interfacing is concerned. Many calls a day come through the Heil Sound facility with RF issues.". To increase high-frequency articulation, without rolling off lows or mid-range, use selection 4.See page 81 of the Operating Manual for details. Good info, also if you have the free Yaesu PCC-950 rig control software you can setup and save the EQ settings in graph format. Set the Transmit Bandwidth to Wide (100-2900 Hz), and you will be the talk of the band! It rolls off at about 150 Hz on the low side, and it has a few dB of boost at about 2100 Hz, but its response otherwise is very natural, and its large-diameter element provides sparkling highs and beautiful audio that responds very well to the audio adjustment capabilities of todays Icom transceivers. RF power level = 100 W.Connect an audio signal generator to mic input. This will roll off some of the extreme low frequency response. (2.9 kHz) for casual contacts, Mid transmit bandwidth (2.4 kHz) for DX and CONTEST work, Wide Transmit Bandwidth (2.9 kHz. While speaking into the mic make sure the gain setting does not exceed the ALC limit. Set Menu #13 (Bandwidth) to 2.4 kHz, and Menu #14 (TX EQ High Boost) to H for most applications. However, the process became a hobby in itself. You then will tell the filter to roll that off or notch that 200 Hz. Set the TX Equalizer to 2 for local rag-chews, 9 for DX work (1 is also good), and use the 4 setting when using mics with the HC-4 element. This element is found in products including the iCM base station microphone, the Handi Mic iC, the Pro Set iC, Pro Set Plus iC, BM-10 iC, and the Classic iC but the HEIL iC electret will not work on Kenwood or Yaesu which require only our dynamic elements found in our microphones and headsets. Convert power to dB. The 'all controls set to 70% of maximum' mentality has been there all along, but the changeover from v.t. There will be three important frequencies to attend to. I would try 200 - 2800 first. This FTdx3000 page discusses the techniques to attain clean ESSB (Extended SSB) audio by using the INTERNAL parametric EQ settings in the radio and NO EXTERNAL EQ 'boxes'. You want to boost that frequency, you adjust it to + 10dB. Please see ouradapter selectorto find the right cable for your rig. Bob helped Yaseu design the parameters for that rig, and others. You may get by with a .68 F or a .47 uF, but anything less (.01 F, .005 F, etc.) A higher BW number seems to have a higher Q, and the filter affects less frequencies around the center freq of the filter. ALWAYS remember to hold the MENU button for about 3 seconds to save any of these needed items. The first thing to set with any transmitter is the transmit bandwidth. Keep in mind the iC elements were designed specifically for the early iCOM rigs with low mic preamp gain. Sometimes i`m asked how to adjust the EQ settings of Yaesu rigs. I like bob as a person but think his "professional ham gear" is outrageous. The results have been gratifying for DX pileups and contesting. there's an adapter that plugs right into the radio. HEIL ICM electret Condenser on the YaesuAll Yaesu transceivers are set up to use low gain, passive dynamic microphones into their high gain microphone preamplifiers. This is going to reduce that significantly. For Icom mobile rigs, use the HSTA-706, and for Icom HTs use the HSTA-iHT. You do not need 8, 10 15, or for heavens sake a 31 band EQ when we are only dealing with a 3,000 Hz wide signal ! IMHO, it is a good idea for hams to have some sort of quality monitoring setup as part of their shack. . The objective is to listen to a signal at a level of about S7 on the monitor receivers S-meter. You then set the Bandwidth of that filter and finally you tell the filter if is notches (cuts, reduces) or boosts that filter frequency. :) CUT -6 dB Menu 095 Notch or Boost Also, the FT-950 does not have an audio input on the rear and the FT series are not balanced inputs but rather unbalanced. TS 590 Menu 25 and 26 Bandwidth. Up 'til then his audio was muffled, muddy, and a mess. For the ladies, peak vocal power occurs at 700 Hz. Try moving Menu 102 to 300, Menu 119 to 300 HZ, Menu 128 to 300. 32 -3 63 +6 125 -6 250 -6 500 -3 1k 0 2k +3 4k +3 8k 0 16k 0 Sounds terrible on the product detector as well. If affects just a small 'slice' of the audio if the bandwidth is set to a narrow number or setting. We have notched some low end out by setting the transmit bandwidth in the beginning then with the EQ, we reduced some low end (menu 091) and this is always a major problem. It is impossible for us at Heil Sound to know what settings will sound best on your voice, in your station environment, with your microphone, for your interest (DX, Contest work, rag-chewing, or maximum fidelity) The recommendations below are just starting points; listen to yourself in a separate receiver (with its antenna disconnected) to determine what sounds best in your unique situation. BOOST + 8 dB Menu 098 Notch or Boost I do, however, agree with not making that big of a cut at 200Hz; I would take the filter down to 100Hz, make an 8-10dB cut, and use the same Q of 5. Parametric Eq frequency/level/bandwidth settings are; 200/9/5, 1500/5/5, 2700/5/5. There is no "perfect" setting, it's all subjective. I agree that this is a separate hobby (cash outlay) and really is not needed to communicate. Also, it almost always seems to be necessary to make the boost at around 1kHz. Leave Menu 8-9 to factory defaults for starters. All AD-1 boom set adapters have the decoupling capacitor installed in the 8 pin Foster connector. We highly suggest our dynamic element microphones (HC-7, HC-5.1 , HC-6, Goldline GM series or PR-781 type). FT-950 transceiver pdf manual download. These had no microphone preamplifier, it was built into the microphone. These menu assignment numbers change rig to rig. I use Audacity for making contest recordings. He was ready to give up until he discovered 300-2700Hz and those mid and high range EQ settings. Other than that, I left all the settings at the standard defaults which came with latest version of the firmware installed at the time. NOW DO NOT FORGET TO SAVE these by holding the menu button for 3 seconds. Bandwidth 5 Menu 099 Bandwidth" Generally, the modulators of these rigs want you to roll off bass and enhance treble. Transmit into a dummy load and listen to yourself. There are three and that is all you will need to make your transmitter sound terrific. We have recently come up with the perfect 'fix' for that. The K3 also has provision for direct connection of the mic cable from a Heil Sound headset, with no adapter required (! Many calls a day come through the Heil Sound facility with RF issues." Again YOU have to make the final decision by listening to your own signal. FT-847Menu 42: On (this engages the Extended Menu).Menu 92: +5 to +10 to start, +15 for DX/Contest work.Menu 93: -5 to -10 to start, -15 for DX/Contest work.Note: The ideal setting may differ between USB and LSB, depending on other alignments in the rig. Then, 'plot the spectrum. ); in this case, set the MAIN: MIC SEL selection to RP (Rear Panel). Whoever is listening is going to add their interpretation of "good" sound. Alan, KBG The 7610 is a full-function transceiver with the addition of being able to be used as an SDR receiver. Mid is 2.4 kHz and Narrow is 2.1 kHz. N5TGL, I know that it may seem counterproductive to make a cut a 400Hz, but that is the way it seems to work with many SSB transceivers. Listen to yourself in the monitor receiver while transmitting; you may now try Menu 4-4s options. So this parameter can't actually be used as published. Also go out buy yourself a Audio Technica ATR-30 for 18 bucks on amazon. To use any dynamic element on these phantom-powered inputs (which should NEVER be applied to the mic input of a radio transmitter, IMHO), the 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. As always listen to your test signal through headphones connected to a second receiver. Sign In Upload. You want to boost that frequency, you adjust it to + 10dB. You must listen to yourself through it monitor system or through a nearby receiver and headphones. Before you can set up your rig, you need to think about what you are trying to accomplish. "Yaesu has recently had several reports that the 950 is VERY sensitive to RF. Thanks to GM0ONX for this drawing. And I dare say, microphone gain is the one control on modern transceivers, almost no one gets right! These settings are credited to a great friend Randy/K0RWB.thanks Randy! I don't know why the well-known commercial adapter maker doesn't do this. A Parametric EQ usually has only 3 filters. will not pass any speech audio worth listening to). For most, roll off the low end by setting the first filter at 200 Hz. Great receiver, full coverage 160 through 6 meters. Options abound as how to tweak transmit audio to a precise sound. If affects just a small slice of the audio if the bandwidth is set to a narrow number or setting. Click hereto view pinout information for hundreds of rigs, mics, and connectors. The BIG problem with this is when you try using a REAL (dynamic) microphone. 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. IMO if you are using the Yaesu HH mic, use position #2 on the back. The Monitor circuit provided on your rig is very unreliable as a way of evaluating your stations audio characteristics. If you set the Bandwidth control of the Parametric to 1 or 2, the notch or boost you have set will only affect about 150 to 250 Hz. I spoke into the mike at a normal voice level from about 6 inches away. Just rename each file configuration when saving (DX, low cut, high cut etc.) Interesting and well written article. Modern Amateur Radio transceivers offer a wide variety of features that may include DSP-based adjustments for your SSB audio. For DX work where you need to cut through pile-ups and noisy conditions, 2.1 to 2.4 kHz will be desired. With the trend to ever-smaller living spaces RF feedback rears it's ugly head. You can adjust the frequency, the bandwidth and tell those parameters to either notch (-) or boost (+).With normal two or three band equalizers, the frequencies are set and fixed by the design engineer of the radio. If you dont do that, all of these settings go back to zero. Compression: Set for 10 dB on voice peaks on COMP meter. The second adjustment is the Bandwidth which is set in the traditional audio nomenclature of octaves. Why buy a PR series mic if you are going to restrict the bandwidth from 200-2800 then roll off all the lows? I ultimately traced it to the headset's mic cable having inadequate shielding (spiral-wrapped fine stranded wire that provided perhaps 70% coverage instead of a braided or aluminized mylar shield). Download . In almost all cases when a person using a newer radio had RF in his audio we were able to eliminate the RF by removing the jumper wire. Last, Heil's cables contain a small jumper wire from mic shield pin of the connector to the shell of the mic. Here are the menu assignments for the FT 950. I run the gain at 12 o clock, and the switch on the back of the mic to the right when looking at the back of the mic. In each of the audio bands (low, mid, and high-frequency areas), you can set the center frequency, amplitude, and bandwidth of equalization. eHam.net is a community web site for amateur (ham) radio operators around the world. Adjust the mic gain by watching the ALC meter. Again, these are necessary starting points for operation, and it should be noted that, when using the HC-6, HC-7, and HC-5.1 elements, the equalizer may be left at its default setting of 0 across the board, since equalization is already taking place in the mic element itself. Cutting 400 Hz 6dB is going to do a great job of making your audio sound "tubby". There's no reason it wouldn't work with the Yaesu FT-950,or any other radio, as well. Great article. Menu items 25 and 26 set the transmitters bandwidth. Its much better to listen in a separate receiver because that is the only way you can get a real-world appraisal of your audio passband characteristics. DSP Setting Example: Yaesu FT-920. With my Heil GM-5 I has the mic gain on the FT-950 set at 14 percent. and questions regarding my mic and rig because it sounds so good. Do you want to sound like a 2.4 khz Ten Tec from 1974? No you are correct. 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. If you do not have one of our microphones you need to do the above modification. Since I cant actually HEAR your transmitted signal, these are just starting points. Do you work lots of DX and contests, or do you like to hang out on 75 meters and have long ragchews with local buddies? With mics based on the HC-4 and HC-5, setting Menu 7-7 (SSB-t) to 100-3100 and Menu 4-4 Off will generally be all you need to do. Suddenly, there were just 3 pots! The iCOM 7300 has been updated to work with all Heil Sound iCM. In the course of listening over the past 30 years the quality of SSB transmitted audio on the amateur bands has deteriorated. Edit: Yaesu MD-100: Main->Filt, High emphasis->on, low cut->off. CUT that filter -15 dB Menu 092 Notch or Boost Another reminder: the FTdx-3000 Menus have two sets of mic equalizer settings. The assignment numbers are different but the levels are the same. The mid frequency is very important. Note that power output meter will show lower power as bandwidth is increased; this is normal, reflecting lower power density per Hertz of passband.FT-1000MP Series (including Mk-V and Field)Menu 5-9: 6.0Menu 7-7: Set SSB-T to 300-3100 Hz for DX/Contest, 100-3100 Hz for more fidelity.Menu 4-4: Set to OFF while setting Menu 7-7 to your liking, then try each selection (1 through 4) while listening in a separate receiver to see if any of these improve your voice signals characteristics. There are parametric EQ's in several Yaesu rigs, and it's great to have a good explanation of how they work, and how they should be set up for "communications audio". Once you get the Wide bandwidth set, press and hold in the COMP key to try the MID bandwidth, then the NAR bandwidth. SO SO important and this + 8 dB boost at 2400 - 3000 HZ is the good starting point for that. The iCM is the perfect match for the iC 718. As mentioned in the Yahoo FT-950 group the 094 EQ 2 Freq does not go below 700Hz on my and other's FT-950's. Also this confuses some, but there are two separate EQ's in this rig. Press the (PROC) button momentarily so MIC EQ shows up in the display. Be sure to read the chapter "Parametric Microphone Equalizer" in your YAESU transceiver operating manual. Set the SSB TX Bandwidth to 200-2800 Hz for high-fidelity rag-chews, or to 400-2600 Hz for DX work. For ESSB operation, you may want to set the lower-frequency selections to positive settings, depending on which microphone you have and your audio sound objectives. If you set this first filter frequency to 200Hz. The first and most important adjustment will be the transmit bandwidth. You can make a recording of audio at any stage in the chain and replay it to see if you can demodulate it. FT-920Menu U-59 (TLSB): +100 for DX, +150 for Contest work, -100 for rag- chewing.Menu U-60 (PROC LSB): +100 for DX, +150 for Contest work, -100 for rag- chewing.Menu U-62 (T USB): +100 for DX, +150 for Contest work, -100 for rag- chewing.Menu U-63 (PROC USB): +100 for DX, +150 for Contest work, -100 for rag- chewing.Menu U-51: Set to OFF initially.1: Mid- and high-frequency emphasis.2: High-frequency emphasis (DX/Contest setting).3: Low- and high-frequency emphasis, dip in middle.4: Wide broadcast setting. Many calls a day come through the Heil Sound facility with RF issues. You then set the Bandwidth of that filter and finally, you tell the filter if is notches (cuts, reduces) or boosts that filter frequency. You may also select HB2 (High Boost 2) if youre using a wide-range microphone, like the PR 781, on the TS-590. The Heil HC-4 cartridge should add some highs to your audio by the nature of the design of the cartridge. Just as all EQ settings, we can only give you starting points for your transceiver. The third control of the filter is either or +. The first low frequency filter removes all of that low end bass that destroys so many signals. We have explained one filter. They have lots of bass, no mids, no articulate highs so they end up sounding like mush. The supplied hand microphone as ALL hand mics, sounds hollow and mushy. If you set the Bandwidth control of the Parametric to 1 or 2, the notch or boost you have set will only affectabout 150 to 250 Hz. If you need any help, we are glad to assist you with writing your article based on the information you supply. About Us Dealer Resources US Dealers International Dealers Repairs WarrantyFAQs Privacy Policy Terms & Conditions Contact Us. #1. Now we move onto the Parametric. Don't give up on this incredible piece of technology. The first low-frequency filter removes all of that low-end bass that destroys so many signals. Bob Heil introduced me to Parametric Equalizers back in the '70's when he built some custom concert sound racks for my band in his magic little factory in Marissa, IL. Compare your radio audio plot to the Audacity spectrum plot. Well after reading the article it makes me scratch my head and ask myself WHY? It was found through testing that when both are set at the same levels, the radio power output is 2.5 times greater with the processor "on" verses the processor "off". If you have more that three frequencies which need 'attention' you have more problems than an equalizer is going to fix! The earlier FT series is actually electrically the same point as the front mic in. The ferrite choke solved the problem completely, and I never expereienced it again. The three band parametric EQ in the FT-950 TX audio stage makes using your favorite microphone much easier to interface. Oddly, the word gain doesn't appear in the text. The TS-590S does have a very sophisticated software-programmable equalizer system, but thats not required in order to get on the air while sounding great. Why not just buy a Goldline series mic and use a GM5 element and save a ton of money? Use one of our PR series professional balanced output microphones with the 3 pin XLR. Remember: youre listening in a QRM-free environment, trying to hear all aspects of your signal. I use an MD 100 desk mike. FT-450The FT-450s Microphone Equalizer Menu item (MIC EQ) is very simple in its adjustment. Many of them are transmitting low frequencies close enough to DC to act as a carrier & demodulate the signal. Follow this guide for simple instructions on how to get your rig set up so that you sound great on the air. Properly set there is no reason to NOT run the processor all the time. You only have control to either cut or boost the filter frequency they build into the transmitter. The voltage divider was made up of a 1 k Ohm resistor in series with the audio (+) line and a 100 Ohm shunt resistor.