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Reviews Categories | Transceivers: HF Amateur HF+6M+VHF+UHF models - not QRP <5W | ICOM IC-7700 Help


Reviews Summary for ICOM IC-7700
ICOM IC-7700 Reviews: 128 Average rating: 4.5/5 MSRP: $6999.95
Description: Description: The ICOM 7700 200W HF/6M has been introduced at the 2007 Dayton Hamvention. ICOM has followed all the success of the beautiful IC-7800 with the smaller, single receiver IC-7700. It utilizes two separate 32-bit floating point TI DSP chips, has a 7-inch wide TFT display, built in RTTY/PSK31 receive and transmit using a USB Keyboard interface, external video connection, high res spectrum scope, plus high voltage MOSFET 200 Watt PA.
Product is in production.
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WB8B Rating: 5/5 Aug 6, 2009 15:30 Send this review to a friend
Job Well Done  Time owned: 0 to 3 months
This review of the Icom IC-7700 is essentially a benchmark comparison to my Icom IC-775DSP, which has served me well as the main rig for the last 10 years. My objective is to point out some of the main characteristics that I have observed on the IC-7700. Please note that there are many other apparent qualities of the IC-7700 in regards to phone and digital modes of operation but which go beyond the scope of this review and commentary.
I’ve been an avid, all band, CW DXer for 22 years with emphasis on 160mtrs while also operating in the CQWW-CW, ARLDX-CW, and other contests. I am not a phone op, and am as rare on phone as P5 North Korea is on all the bands, so my review may not help those who favor operating phone. Previously owned rigs include Icom IC-735, 746, 751, 751A, 765, and 775DSP along with a short term in-shack usage of an IC-781 and Yaesu FT-1000MP.
Sometimes we hams fall victim to a “wow” trap when we first get a new rig, just dying to put a review out instead of waiting a while and then giving a more non-biased observation once the new rig’s been in the shack for a while. Before a rig review, it’s nice to hear that the new owner gave some time and attention in performing real A-B comparisons to old shack benchmarks that have been used to for many years. Since I perform testing, validation, and benchmarking of electrical and mechanical components as a test engineer, and am analytical by nature, I can easily state things like I see them and give a non-biased observation even though it was a lot of ‘my’ hard earned money spent.

SELECTIVITY:
The IC-7700 was put to the test against my old IC-775DSP that has the stock cascaded 500 Hz CW filters for the 9 MHz and 455 kHz, and an optional 250 Hz filter by Inrad for the 455 kHz I.F. Please note, there is one CW filter spot empty on the IC-775 which is the place holder for another 250 Hz filter in the 9 MHz I.F. The high pass and low pass receive audio filters were set on the IC-7700 to match the widest settings of those in the IC-775 during my observations.
S9+30dB and greater CW signals were hunted down on all bands with an emphasis on 80/160mtrs. I frequently looked for the perfect recipe for receiver comparisons by searching for those situations where a very weak DX signals fell within 100-200 Hz of those bigger S9+30dB and greater signals. These are the basic metrics (in my opinion) in a receiver that can make or brake getting that weak one in the log while fitting big signal QRM.
What I had found was that both rigs performed almost equally when the filter bandwidth of the IC-7700 was set to the same 250 Hz bandwidth of the IC-775 narrow filter. If the IC-7700 had the shape of the filter set to “soft”, the IC-775 did a better job; but when the IC-7700 had the shape of the filter set to “sharp”, the IC-7700 was slightly more selective. To get the interfering CW signal out the IC-775 pass band, you had to be 200 Hz or greater from the QRM signal, while the IC-7700 could give you an additional 100-125 Hz of playground next to that big signal. The IC-7700 can also go down to a bandwidth of only 50 Hz; this is where the upper hand comes in. I discovered that the IC-7700 is more capable in selectivity verses the IC-775. These observations included repeated deep scrutiny of the weak signals to make sure the classic desense issue was not evident as typically found in older generation DSP only rigs where close in signals became severely desensitized due to poor blocking dynamic range. I found no audible attenuation from filtering of even the weakest signals, even on the higher 10-15mtr bands where the noise floor was very low and quiet with preamp2 engaged. My consensus is that the IC-7700 has more capability in selectivity due to these selectable narrower bandwidths down to 50 Hz, but without noticeable receiver desense. However, the horse race could get tight if I were to opt for one of those 125 Hz, 455 kHz IF, CW 8-pole filters by Inrad to place inside the IC-775DSP.

SENSITIVITY:
Many hours were spent comparing the IC-7700 to the IC-775 on the higher 10-20mtr bands in search of the weakest signals. What I had found was that the receiver sensitivity of each rig was practically equally sensitive. This was also the case even on the noisiest of bands including 80/160mtrs in the late evenings while pulling out the weakest signals I could find. The comparisons were done with the receiver preamps in the OFF, preamp1 and preamp2 settings. More emphasis was placed on comparing preamp2 of both rigs on the high bands 10-20mtrs. It was a draw between the two receivers by my ears.

ROOFING FILTERS:
One feature on the IC-7700 is the choice of 15, 6 and 3 kHz roofing filters in the filter menu. These filters allow for high values in close in blocking dynamic range to fight against very strong close by signals. To actually hear a difference between the 3 selectable filters, the very strong interfering signal or signal(s) must be somewhere between 6 to 20 kHz or so from your receive center frequency to observe any differences between the filter selections. I aggressively toggled between the three bandwidths during a couple of contests that including many loud stateside signals on 20 and 40mtrs. I honestly did not hear much difference between the three roofing filters. This may have been due to the strongest signals on the bands only making it up around S9 +35dB, and far from 50 to 60 over S9 where various test lab characterizations of the receiver have been done which verified the integrity of the roofing filters performance. A run down to the local AM broadcast band here in the Detroit area provided a myriad of 40-60 over S9 signals to experiment with. I noted a small difference in selectivity when attempting to pull in weak AM signal carriers 10 kHz away from 60 over S9 local station signals. These filters do work, but don’t expect them to jump out at you and act like conventional optional SSB or AM filters with deep skirts.

AGC:
One thing I immediately noticed on the IC-7700 when I got on 160mtrs was that you that can’t shut the AGC off! Oh no? Don’t worry, not a problem. Running the AGC in the OFF position and riding the RF gain was is something I’ve done years on the IC-775 and other rigs when operating 160mtrs, but only because the AGC time constant was still slow even in the fast position. The IC-7700 has a decently fast AGC attack setting selectable down to 100ms that I found very useful when working 160mtrs. The AGC on the IC-7700 is fast enough to help copy those weak signals within frequent large signal transients and static crash pops. After getting used to the IC-7700 fast AGC response, I never realized how extremely slow the IC-775 AGC circuit really was!

NOISE BLANKER:
There haven’t been too many instances where my AC line noise has been terrible enough where I really needed to run the NB feature hard on the IC-7700. There was an instance where I had the classic AC line insulator arcing interference at an S4-S7 signal on 10-17mtrs. This line interference was a little more random and rough in sound than usual, and the IC-775 was having an issue getting rid of all of it, which is usually not the case. A-B comparisons between the two rigs at that time revealed the IC-7700 did a lot nicer job at getting rid of that particular AC line noise. Please note however, the IC-7700 noise blanker is not a “smoking gun” by my standards (none of them are). The IC-7700 still suffers from the problem that every rig I have ever operated has, and that is the NB blanker will fall apart even with adjacent, moderately strong signals, even with the front end preamp in the off position. As an example; 10 meters with no signals on the band and a high level of line noise. Enable the noise blanker and it’s gone, even at the lowest NB level setting and depth. However, get one station calling CQ on the band within 50 kHz and an S4 or greater signal and you will hear a splatter sound from that calling station up and down the band. I think this NB anomaly is one symptom we will never see go away in a receiver.

CW SIDE TONE MONI ADJUSTMENT:
I’m not sure why the IC-7700 manual makes a pictorial reference to the front panel “MONI” control adjustment for the CW side tone, because this control does not function in CW mode. There is a CW side tone level adjustment in one of the set menus for adjustment of the side tone output level, but the “MONI” adjustment on the rigs face does not apply. Most other Icoms I have had in the past included an external “MONI” adjustment without going into a menu. This may, or may not be an issue to other CW ops, but I do find myself adjusting the side tone in the SET menu semi-frequently depending on the level of shack ambient noise.

AF GAIN / SPEAKER:
The first impression I had of the IC-7700 receive audio with the built in speaker was not too good. The internal speaker requires a high level of AF gain setting to obtain a decent level of audio out. However, the internal speaker did produce fairly decent fidelity when listening to some AM broadcast stations in 10 kHz bandwidth. It didn’t take long though to hook up my commercial Motorola communications speaker which improved the audio level greatly. The IC-775 suffers similarly with its internal speaker and I recall even my old IC-765 was the same regards to level output. Many of Icom HF transceivers have been plagued with this issue after the IC-751A era. My old IC-751A will throw you out of the room with just its internal speaker and the AF gain at less than 10-11 o’clock! The IC-7700 has half the volume output at the same setting with its internal speaker. The question is; what happened to Icoms audio output level over the years?

DIGITAL MODES / USB KEYBOARD:
The IC-7700 accepts a USB keyboard to function on PSK and RTTY, along with sending of the four CW memory keyer memories via the keyboard F1-F4 keys (with firmware v1.10). With the ability of the IC-7700 to do both RTTY/PSK31 with its internal modem, it baffles me as to why it couldn’t also include provisions to send CW via the keyboard. I seriously doubt this could have added much, if anything, to the cost of the rig! Keyboard CW with the IC-7700 would have been a very nice feature for us CW ops! Hopefully this is something that could be added in the future with a simple firmware upgrade.

7” COLOR TFT LCD DISPLAY:
I am quite pleased with the brightness and contrast capability of the IC-7700 LCD display. My shack includes a nearby outside window with a moderate level of incoming outdoor light at a 60-90 degree angle from the radios. The display has contrast and brightness settings on the front with a menu setting “pre-adjustment” for the brightness level. I am the type that doesn’t need or want an enormous level of brightness on any kind of display such as a computer monitor or TV screen, so there really aren’t any issues here on the IC-7700. I’ve been content with leaving both brightness control levels down all the way with just a bit of contrast. There’s been just a few times when direct sunlight is close to the operating that desk I’ve turned the brightness up to 40 to 50% and the contrast up a little to compensate. Nice job on the display!

AUTOMATIC TRACKING RF PRESELECTOR:
For those who first operate an IC-7700, you may ask yourself the same question I did regarding the digital preselector. “Does this thing work, or just make a bunch of clicking noises when you dial around the bands making you think it’s doing something?” This automatic preselector adds selectivity ahead of the 1st mixer. It reduces IMD from strong signals near the received frequency. My first verification of the preselector’s integrity was when I was calling CQ on 30mtrs at 200 watts on the IC-775, while tuning around on 15-20mtrs with the IC-7700 with a yagi on the same tower. I definitely detected the infamous IMD noise quite familiar at any field day site or during a contest station with a multiple transmitters going on different bands. When I first heard the interference, the first thing I thought of was to engage this auto preselector feature and see what happens! Well, it worked! The interference from the 200w transmitter at on an antenna on the same tower disappeared! Please note however that under typical, casual, operating environments, where there are no pile-ups, no super big signals or contests going on, you may not even know this feature works. When you do need it though, it is very impressive!

VFO SPLIT OPERATION with XFC BUTTON.
One small inconvenience while operating split VFO in a pile up on the IC-7700 is the type of button used for the XFC (transmit frequency check). I operate many DX pile-ups, and I use this feature literally 100% of the time when working splits. The IC-7700 XFC button is mostly flat against the surface of the face of the rig and located in the top left area of the main VFO knob. I find myself frequently using the finger on one hand to hold in the button, while using the other to tune the VFO. When using an XFC feature, I found the IC-775 more comfortable to use because the button protrudes out a little, so that just the tip of the finger can easily depress the button, while keeping the thumb and index finger free for turning the VFO knob. This allows for easy checking of the TX frequency AND control of the VFO knob at the same time with only one hand, while keeping the other hand free for things like the cw paddles, keyer controls, antenna rotor controls and etc. This may seem like a very small concern, but if you haven’t worked pile-ups in split mode that sometimes last for hours, you just won’t know. The IC-775 has an XFC button that sticks out about an eighth of an inch making it a bit easier to depress with the finger tip AND spin the VFO knob with the same hand at the same time compared to the IC-7700. A “softer touch” button requiring less depression force and protruding out a little from the face of the rig would have been nice. Again, it’s just a small inconvenience.

SUMMARY:
This is serious money for a new rig, but referencing a 1996 AES catalogue shows that $5800 today (the deal ‘I’ got, before the increase to $6500+ now) is the about the same dollar amount one could have spent (inflation adjusted) for a new Kenwood TS-950SDX, Yaesu FT-1000D, a bit more than an Icom IC-775DSP, and also 30% less money than a brand new Collins KWM-2 transceiver in 1959! The Icom IC-7700 is a very capable transceiver with a lot of bells and whistles, but at a price that many may not afford. There are other transceivers available that do a decent job for less money, but without some of the refinements contesters and DXers prefer. An analogy I use on HF rigs is that their cost could be like comparing cars to drive on a long distance trip, driving say 1000 miles a day (this is like a “contest”). Most vehicles (radios) will do the job. Most vehicles (radios) will get you there. The question is, how tired, fatigued and frustrated will you be on the way to your destination? If this happens to you, it’s possible you just don’t have a nice enough vehicle for the trip and you got what you paid for.
I agree with Icom’s marketing phrase used for the IC-7700 as “The Contesters Rig”. That’s exactly what it is and it could also be easily marketed as “The DXers Rig”. The IC-7700 has many receiver refinements and features that provide you the necessary tools and comfort required for those very long durations in the operating chair, making contacts and enjoying the bands, while not getting disappointed like you can with other rigs that provide inadequate selectivity, fatigue from a noisy receiver, and poor ergonomics. HF rigs are a hams tool to get the job done, make contacts, and have fun. ‘You’ have to ultimately be the judge and are governed by what your wallet says and what your operating preferences are. The IC-7700 may not be for you, but at least I can speak for the DXing/Contesting arena, we have a big winner in the shack and, yes, it’s a keeper!

I hope you enjoyed my review and commentary on the IC-7700. I have read many reviews by fellow hams over my 20+ years as a DXer and have accumulated a wealth of information and knowledge from them. I thank all of those who have provided such information. I thought I would return the favor and give a little back, especially for those who may be contemplating an IC-7700.

73
GL DX
Bob WB8B


 
MD11DRIVER Rating: 5/5 Jul 29, 2009 21:39 Send this review to a friend
Top Quality and Performance  Time owned: 3 to 6 months
This is essentially (except for the 9500) Icoms top of the line. The 7800 having two receivers adds to the cost, but the component level in the 7700 is top of the line. Amazing is also the use of a Oven controlled VFO and a decent spectrum analyzer. The Filters are the best I've seen, Noise blanker works on everything I've tried it on, and the LCD screen is the best of any radio I've seen in terms of available controls. My only wishes are backlit button wording, and a few items that can be fixed thru firmware update.
 
TERRY_PERRY_EX_W3VR Rating: 5/5 May 12, 2009 17:05 Send this review to a friend
Still working well.  Time owned: more than 12 months
Serial number 0201019 purchased last April 2008. I totally agree with the last reviewer on the NB, NR, and I don't miss the Dual Watch either. I used the 7800 before purchasing the 7700, and since. I still do not regret buying the 7700. I think contesting is great, but I do very little of it and for that reason I would not be using the 7800 and its sub receiver to its full potential. Such a fine radio as the 7800 would wasted on me.

A little over a year of ownership, and no problems.

W3VR
 
KC1MR Rating: 5/5 May 12, 2009 15:45 Send this review to a friend
Best bang fer the buck !  Time owned: 6 to 12 months
After my bad experience with the FTdx9000c this honest rig is just unbelievable (not a kit or computer simulator). It all starts with the very classey loose leaf instruction manual; but a spin of the tuning knob which is by far the smoooothest I've ever used and QSY's faster the faster it is spun with a flick of a finger seals the deal !!

Oh yes, the 7700 is by far the quietest; it is only rig that is absolutly silent with preamp #2 turned on even on 50 meters, sometimes it is hard to tell its on!

NR from very little to full on with no distoration, just the way it should be (It is a well known fact that ICOM has thebest NR &NB).

The NR depth and width can be adjusted just by holding the NB button fer 1 sec; no gosh awful series menus (the 9000 has 178 !!).

Manual notch can be adjusted fer nar mid and wide just by pushing the notch button on the front panel.

You can set three seperate DSP-IF filters fer each mode and with passband tuning set the high and low cut seperatly fer each filter (way better than Clr ? and width). The shape can also be changed without
going to a menu

The Speech Comp is very good and not fussy at all

The record / playback actually is usable since You can adjust BOTH the record AND playback levels; I use this feature when calling CQ and
being a net cintrol all the time (I could never get the 9000 's to work,no adjustments).

AGC much smoother also adj w/o going into a menu

Auto Tuner much faster and will easily match swrs over 3to1

Digi-Select works automatically (You'll hear the relays clicking) or it can be turned off.

RTTY/PSK encode/decode usable with the 2 usp ports on the front

To sum it up --easy to use --most of the commonly used adjustments out front --quiet -- as the gentleman said a pure joy
to use -- and no 178 SERIAL MENUS !!

p.s. don't alnost all rigs & speakers use plastic feet ?

pps. I don't miss dual/watch at all ,I just push XFC and watch the
scope

 
N9VR Rating: 4/5 Apr 9, 2009 04:28 Send this review to a friend
Fun!  Time owned: 0 to 3 months
This is one Fun rig to run. Everything on the radio works and works well. Icom should have added Dual Watch for the price, but if you have a second radio or receiver it is not a problem. The filtering is outstanding, and the N/B works well.
If you want to transmit 3.0kc wide, this is not the rig for you. It will only go out to 2.9, but can achieve a very nice sound at that range.
But if you want just plain fun rig to run, this is it. The ability to use an external monitor is also very nice. And if your use to the Pro series, the control are very much alike.
Add dual watch and this rig is a 5+.

73 Bill N9VR
 
WA4KLQ Rating: 5/5 Apr 2, 2009 18:59 Send this review to a friend
A Great Radio  Time owned: 3 to 6 months
This is my first big dollar radio. My previous radio was a small MFJ QRP transceiver so this was a pretty big step up. The radio itself is big. I got lucky when I ordered it. I had been looking at the radio when it was priced at $6999. Then it dropped to $6499. On Black Friday, when AES had it for $5499, I pulled the trigger on the purchase. I was able to afford something a step above the IC-756PROIII and the IC-7700 fit the bill.

The manual is pretty straight forward. One does have to move about the manual to learn how to use the radio, but it is not that hard to do.

The radio works very well. The receiver does a great job on weak signals and the scope is very easy to read. The ability to attach a Flat Screen to the radio makes the job of reading the scope even easier. I really cannot find anything wrong with the radio.
 
KA7GKN Rating: 5/5 Feb 24, 2009 13:10 Send this review to a friend
Excellent  Time owned: 3 to 6 months
A lovely radio! Every knob, button, and function work as well as advertised or better. The methodology to upgrade the radio is user friendly.

I do not do any digital modes. I only operate "essb", That is "ENHANCED SSB" NOT ESSB "EXTENDED SSB"
There is a difference and the fidelity SSB audio topic is always debated and will never be resolved.
The key is to provide an excellent signal to your audience.

The 7700 although is not really designed as other newer radios [FCC type accepted] to allow a 3.2khz bandwidth. You can still deliver a quality SSB audio signal by routing your audio via the ACC-1 jack. You will deliver an excellent and CLEAN SSB audio signal.

Of course I truly do miss the dual watch function, but this radio has the ability to address QRM so well you don't have to track the signal down. Instead you adjust the radio and almost all of the QRM can be eliminated or significantly reduced.

Martin KA7GKN
 
QRPNEW Rating: 4/5 Feb 21, 2009 19:51 Send this review to a friend
Good package  Time owned: 3 to 6 months
I owned the IC7800 and I thought that I would try the IC7700 thinking I would not miss the second receiver. I was wrong, in many ways its disappointing that the IC7700 does not have a dual receiver. However I can understand Icoms marketing pitch that the IC7800 is there , but when the PRO3 has dual watch how can a more expensive radio have less ability?

The things that I like about the IC7700 are these.

**Large size and superb ergonomics, its a beautiful and easy to use radio
**The bandscope is superb, it would have been nice if click and tune with say a plug in
mouse was available.
** The receiver is great even though its not chart topping or better than a radio like the K3 in key receiver metrics. The K3 is a better CW radio and on crowded bands like 40 meters during big contests the K3 eats the IC7700. For everyday use its great and its low noise/hiss receiver is great. You can hear the superior inband IMD and lack of peak distortion on the received signals when compared to other radios. Very weak signal detection is superior to the K3 on SSB. When the signals hardly move the S-meter they much easier to copy than my K3. However the K3 will hear anything that the IC7700 will. Its just easier copy on the IC7700. On SSB the IC7700 is better receiver in my opinion. The K3 with its quirky roofing filters and non centered IF shift always make the receiver sound hissy. The IC7700 seems to resolve signals much better.
**Built in power supply is great.
**200 Watts of output is superb and it produces this with no power spikes and very smooth power control. I was expecting much better transmitter IMD performance than the QST review returned. However the IC7700 has much less transmitted crud than my K3.
** Fantastic receiver stability. The K3 even after close to 2 years since its release still does not have the TCXO compensation ready yet. This stability thing becomes an unhealthy obsession when you have an Rubidium standard!

The things I dont like:

** digital S meter, its not calibrated. For the price and technology in this radio you would have though that a calibrated meter would have been a piece of cake. It does not really mimic a true analogue meter all that well.
** The tracking preselector seems to be a xmas tree decoration and does not do much. I still have to use my W3NQN band
pass filters when operating in contests.
**expensive radio for not having dual watch or a second receiver
** expected better receiver performance for the price, it does not come close to the K3's on IMD dynamic range.
** Icoms stupid microphone system with the preamp in the microphone, this is a real Joke.
** Icoms still persists with the STUPID CIV level converter which should be in the radio. I mean this CIV is a dinosaur that does not belong in the year 2009 let alone on such an expensive radio.
**My IC7700 blew the finals twice and I also zapped the encoder. I dont know why Icoms radios seem to have so many problems with the PA's blowing up? Its getting expensive and its an nervous operation shipping these big expensive radios. Icom or its dealers should have special armored shipping cases made like HP does for their test equipment where you just drop the radio in and ship it anywhere in the world. I would not mind paying a security deposit for such a box.

Overall I am happy with radio, its represents poor value for money when you look at things like the transmitter and receiver performance. When the IC7600 comes out I think the IC7700 will represent poor value and would not offer enough receiver performance advantage to justify its huge price. The Elecraft K3 offers better value for money and delivers receiver performance and many features that the Icom IC7700 cant match. I would say that if you have very large antennas and you are a big time contester the K3 with its dual receivers and better IMD dynamic range is a deal thats hard to beat. If you are casual operator with average antennas the IC7700s tightly integrated package and superior ergonomics and bandscope will win over most operators. I will keep mine because it has a great layout and ergonomics and ease of use compared to a radio like the K3. However on CW and during contests I will always use the K3.
 
PE2MC Rating: 5/5 Jan 11, 2009 14:27 Send this review to a friend
Super RIG  Time owned: 3 to 6 months
HI all,

After 4 months decided to Buy the 7700. A big step to buy a Icom. I'm really a Yaesu fan for several years.
I can only say what a great radio.
I did some test with the rig.

The recieving is better then my FT1000D.
The filter are super with Pre Amp 2 on 40mtr no intermodulation from near by HF radio signals.
Before i used a FT2000 on 40mtr and i never good use the Pre amp.. Not that i need it but just to see how things preform.
Also the Audio from the speaker is improved. I don't like the 756 line is small flat and it sound not very good. Als the radio is not quite in this area. I live close to a radio broadcast tower with outputs from 100kw. So you can think i do need a good rig or it will leave the shack.
There are many features in the rig that are handy. Like the audio setting on the RX and also on the TX.
Also i've the rig working with the cat on the rs232 port. So no need to buy the ct1 very expencive thing.

It's a real winner. and i do like the rig very much.

Marco Pe2mc
 
F4FGY Rating: 5/5 Dec 31, 2008 08:13 Send this review to a friend
BEST  Time owned: 0 to 3 months
hello, ad Unlike other materials, which suggest a slight breath even when the knob is a zero BF, ICOM 7700 it is entirely silent on the plan.
By pushing the volume, we quickly noted that the receiver is quiet, very quiet ..........................
The listening on headphones, for long hours, will not be tiring for the operator. The BF is a roundness that can only please, and if one listens broadband 3.6 Khz will take advantage of the wealth of some spectral modulations, it would be almost the impression of listening to FM.
73 and good DX
Fred F4FGY
 
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