Date   

Re: [IC-7000] USB to IC-7000 interface and N1MM+

r norris
 



Something tells me that issues exist between the CI-V circuit differences with the 7000 and the levels seen or expected to be seen by the Lenovo laptop USB ports.

Efforts continue but maybe not for long!!  :-)

73
Hank
K3YDX


After all the noise, it’s just your Lenovo that is FUBAR.

Check it with other USB devices.

Neighbor has the problem, every time he turns his stuff on, with one computer, the USB ports move.

Has to go re-select.


PRESENTATION - Me and my ICOM IC7000 - NO RX, NO TX and no sound

radiofvj@...
 

Hello to this useful group.

I introduce myself.


I am Fabrizio and I am an italian ham radio operator who love so much HF, CW, and radio communication.

I am in Rome, and I am hamradio operator since 2003.

I am 42 years old.


Recently, a friend gave me an ICOM IC7000 with some problems. He don't want to repair this rig, 

This friend gave me the rig because he knows that to me, not being an electronic technician and while not trained on radioriparazioni, like fix these things calmly thus trying to increase my simple electronic culture and bring back to life these appliances.

Lately, very calmly, I repaired a kenwood ts140s to which I just recalibrate the nb2 and replace potentiometers slide on the front, I repaired a FT817 with distorted sound, and repaired a Yaesu complete vx7r barometric module, which had problems to the keyboard and the lCD module.

Apparatuses that, now, they work very well and regularly use.


I will now describe the defects.


It power on normally. At 13,8V the rig power on without problem, and it drain about 1,25A.

The first message on the display powering on, is about the knowledge of responsibility about use of the rig or receive TV mode while driving a vehicle, and about agreement or not this responsability.

I choose YES, and the rig comes on normally.


It power on on 20m band, 14,100.000Mhz.

All of the menu items, functions are regular. Function are present, all knob work normally.


But.....there is a but....


After first display message on responsibility, the internal speaker makes a 'pop' and the rig goes on. But no audio is present. The volume pot works normally, the squelch pot idem, but no audio is present. Infact, while pressing the various buttons, not even feel its beeps.


Nothing.


Other problem.

No rx is present. The instrument of the rig doesn't measure any signal. No signal rx is present on all band.


Another problem.

Normally, the rig drain about 1,25A.

If I transmit, with microphon HM-151 or via straight key or paddle, the rig goes on TX but no power out is present. 

In this situation the drain, on TX, is about 1,48A. Whether imposed to 0 the transmission power, whether the imposed maximum, the drain is always about 1,48A.


In summary therefore, the problems:

- no audio is present in the rig on the internal speaker, on the earphone jack on the front of the radio, and on the rear external speaker jack;

- no rx is present on any band and any modes;

- no tx power out is present, on any band and any modes.


In all of this situation, if I transmit via microphone or straight key or paddles, the ALC goes on full scale.


In the hope that it was not too long in describing the situation, and I apologize for my small English 'school', I strongly hope to be able to get useful and constructive advice that I may be able, with the help of the group, given to me to fix this radio.


Of course, I will update you on further developments, then hoping to be able to rejoice together with you to troubleshoot failures.


Thanking the administrator of this group for my admission and for the patience :) I want to express my thanks for any advice I receive, and the opportunity to begin to extend to all my heartfelt thanks and best wishes for the festive season that they are approaching.


Sincerely, 73 to all de IZ0FVJ Fabrizio :)



Re: SWR Question

Milo Austin
 

The dummy load is exactly what I thought of after I hit Send.  Good idea. And another tool no self-respecting ham should be without :-)


Milo, KF5GCF


Re: USB to IC-7000 interface and N1MM+

Hank Hanburger
 

Steve, John and others-

Thanks for the continued thoughts and ideas regarding this unique problem.

As I had mentioned previously I have no problem with this relationship between the 7000 and the RS 20-047 as well as another interface when connected to my Dell desktop or even my old and slow XP Acer netbook and running N1MM+.

It is only when connected to the Lenovo laptop that I get the intermittent operation using N1MM+ or any other radio controlling software.

I have done the change of the CI-V address as well as changing baud rates and it does the same thing regardless of setting.  
By virtue of the fact the system works fine in use with other computers the 1/8 " plug is inserted correctly.

I believe Steve pointed out the difference between the original 706 and the 7000 CI-V circuit which may account for the intermittent issues I have with the Lenovo because the Lenovo works fine with the original 706.

Something tells me that issues exist between the CI-V circuit differences with the 7000 and the levels seen or expected to be seen by the Lenovo laptop USB ports.

Efforts continue but maybe not for long!!  :-)

73
Hank
K3YDX


Re: SWR Question

johnvn_1969
 

Thanks guys... I'm going to throw a dummy load on it to see what it shows first.  If all looks okay there, I will try replacing the jumper to see if that helps.  If not I will dig out my MFJ manual tuner to see what it shows.

It is strange as 20M, 30M, and 40M seem okay, but when I go to 80M it goes full scale.  All the other bands seem to match what the LDG tuner shows.

John
KD8TZC


Re: [IC-7000] SWR Question

w4ayk@...
 

Change the jumper between the radio and the tuner.
73,
Gene

Eugene C. Clark W4AYK
Assistant Section Manager, Georgia
ARES Emergency Coordinator, Dougherty COunty
ARRL, the national organization for Amateur Radio
email: w4ayk@arrl.net; Telephone Cell (229)344-1895

----- Original Message -----
From: "kd8tzc@outlook.com [ic7000]" <ic7000@yahoogroups.com>
To: ic7000@yahoogroups.com
Sent: Tuesday, December 13, 2016 9:00:11 AM
Subject: [IC-7000] SWR Question

I have been away from HAM radio for a few months and I seem to have gone brain dead with how my 7000 operates. First off, I have a LDG AT100 PRO auto tuner interfaced with my radio. If I hit the tune button on my rig, it all seems to tune up just fine, but when I start to communicate (JT65) the SWR meter on the rig goes full scale, but the SWR meter on the LDG AT100 is at 1. Am I doing something wrong? I thought they always show the same or is the SWR meter on the rig showing the SWR between the tuner and itself?


Sorry for the goofy question... I should know this


73's


KD8TZC


Re: [IC-7000] SWR Question

Milo Austin
 

Well, I'm no expert KD8TZC, but here goes.  Common sense says that the only thing the 7000 SWR can see is what is right in front of it.  It doesn't "see" the antenna.  Any chance there is a fault between the 7000 and the Tuner?  Any switches, etc.?  Do you have a manual tuner you can replace the LDG with temporarily? The LDG could possibly be giving a wrong tune so it needs to be eliminated as a possibility. Or better yet, an Analyzer so that you know definitively what your antenna impedance etc., is? A separate SWR meter would help you see what may be going on.  These are all tools no ham should be without.  All the computer-controlled fancy automatic stuff is great, until it's not.  Then what?  You need some tools to fall back on.

73, Milo

KF5GCF

 

 

On 13-12-2016 08:00, kd8tzc@... [ic7000] wrote:

 

 

I have been away from HAM radio for a few months and I seem to have gone brain dead with how my 7000 operates.  First off, I have a LDG AT100 PRO auto tuner interfaced with my radio.  If I hit the tune button on my rig, it all seems to tune up just fine, but when I start to communicate (JT65) the SWR meter on the rig goes full scale, but the SWR meter on the LDG AT100 is at 1.  Am I doing something wrong?  I thought they always show the same or is the SWR meter on the rig showing the SWR between the tuner and itself?

 

Sorry for the goofy question... I should know this

 

73's

 

KD8TZC


SWR Question

johnvn_1969
 

I have been away from HAM radio for a few months and I seem to have gone brain dead with how my 7000 operates.  First off, I have a LDG AT100 PRO auto tuner interfaced with my radio.  If I hit the tune button on my rig, it all seems to tune up just fine, but when I start to communicate (JT65) the SWR meter on the rig goes full scale, but the SWR meter on the LDG AT100 is at 1.  Am I doing something wrong?  I thought they always show the same or is the SWR meter on the rig showing the SWR between the tuner and itself?


Sorry for the goofy question... I should know this


73's


KD8TZC


Re: USB to IC-7000 interface and N1MM+

Steve W3AHL
 

70 hex is just the default address.  Any address works as long as the software is set to use the same.  If multiple devices share a CIV bus, then each must be unique of course.

Fully seating the 1/8" plug is a good point.  The recessed chassis opening where the receptacles are located is too narrow for many molded plugs.  I've had to whittle down the molded plug body to get them in all the way.

Steve, W3AHL


---In ic7000@..., <johnk3noq@...> wrote :

Hank:     Check out page 136 of the IC-7K manual, item 49  CIV address,   should be  70H for icom 7K.   Also, make sure the adapter cable mini phone plug is pushed in ALL the way to the 7K. 

 

73/John K3NOQ/K5

 

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Re: USB to IC-7000 interface and N1MM+

John Rupprecht K3NOQ
 

Hank:     Check out page 136 of the IC-7K manual, item 49  CIV address,   should be  70H for icom 7K.   Also, make sure the adapter cable mini phone plug is pushed in ALL the way to the 7K. 

 

73/John K3NOQ/K5

 

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Re: Pure TX Power on UHF

sv1dpp
 

OK, 
Just now I read older posts with the same problem. 
Probably the final RD60HUF1 has damaged 
73 Spiros, SV1DPP


Re: USB to IC-7000 interface and N1MM+

Steve W3AHL
 

Excessive noise on the CIV interface is not necessarily RFI from radio transmissions, so don't write it off too quickly.  Switching power supplies, network switches and routers, all digital devices, entertainment devices, etc. all generate significant noise which typically either gets "bypassed" to the devices' chassis and AC ground or radiated by connecting cables, including power cords.  Even devices that don't have a grounded AC plug will conduct noise on the neutral AC wire, which connects to AC ground in the panel and then is shared among everything in the rest of the house.  

When I moved to my current home in NC I was unpleasantly surprised at how high my noise floor was on most bands, compared to my previous location in PA.  When I shutdown the main electrical panel and ran the radio on a battery the noise dropped 4 S-units.  And most of that was from non-radio sources in my radio room located in a detached workshop.

I doubt that your problem is really in your iCOM 7K or Lenovo laptop.  You can't expect absolutely zero support from both companies in resolving your problem.   Well iCOM might tell you to return the radio to a service center....

If you have a scope it might be useful to look at the interface voltages using a Y-cable at the CIV port.  But that doesn't show you what the actual interface circuits are seeing inside the radio.

Streve, W3AHL

---In ic7000@..., <k3ydx@...> wrote :

Steve et all-

Thanks again for the suggestions.  I will explore them as time permits.  Very perplexing to say the least.

Relative to the latest suggestion about setting the baud rates to no more than 9600, I have done that with
no change in results.

I was unaware of the difference between the 706 and 7000 CIV circuits.  Perhaps an email inquiry to Icom technical help about this issue and the difference might be of value.  Perhaps a change in value in the pullup to the transistor is a possibility.  

I do not think RFI is any issue as I am just trying to get reliable operation on receive first.  I can easily try powering the radio via a battery but don't expect any miracles however, you never know, it is the Christmas season!!  I have also disconnected everything non essential in exploring this issue.

I have an old Acer netbook with XP to which I am going to load N1MM+ on and see what happens with that but as mentioned previously I have successfully run the 7000 on my Dell dual core desktop machine with the RS interface.

BTW, I have obtained the same results with a different interface from Valley Enterprises as I get with the old one from RS.

At this point I am laying blame on both the Lenovo and the 7000 to some degree or another!!

Take care guys and thanks again.
73
Hank


Pure TX Power on UHF

sv1dpp
 

Recently I bought a used 7000 and found that in the UHF band transmits only 15 to 18 watts. According to Service manual attempts to adjust the final idle current on UHF to read 2,5A with no effect. The current remains 380mV. Any help please?

best 73 

Spiros, SV1DPP


Re: USB to IC-7000 interface and N1MM+

Hank Hanburger
 

Steve et all-

Thanks again for the suggestions.  I will explore them as time permits.  Very perplexing to say the least.

Relative to the latest suggestion about setting the baud rates to no more than 9600, I have done that with
no change in results.

I was unaware of the difference between the 706 and 7000 CIV circuits.  Perhaps an email inquiry to Icom technical help about this issue and the difference might be of value.  Perhaps a change in value in the pullup to the transistor is a possibility.  

I do not think RFI is any issue as I am just trying to get reliable operation on receive first.  I can easily try powering the radio via a battery but don't expect any miracles however, you never know, it is the Christmas season!!  I have also disconnected everything non essential in exploring this issue.

I have an old Acer netbook with XP to which I am going to load N1MM+ on and see what happens with that but as mentioned previously I have successfully run the 7000 on my Dell dual core desktop machine with the RS interface.

BTW, I have obtained the same results with a different interface from Valley Enterprises as I get with the old one from RS.

At this point I am laying blame on both the Lenovo and the 7000 to some degree or another!!

Take care guys and thanks again.
73
Hank


Re: [IC-7000] USB to IC-7000 interface and N1MM+

r norris
 


On Dec 6, 2016, at 16:47, k3ydx@... [ic7000] <ic7000@...> wrote:

Steve et all-


The use of an external USB "powered" hub might be worth trying.
So far I suspect I'm dealing with a communications level issue between the 7000 and the Lenovo laptop.


With a 756 P1, 756 P3, and a ‘7000, I have found it best to lock the radio CIV/computer  baud rate to no more than 9600.

No auto, no 19,200.  I still get a jump in freq, if I spin the knob, extra fast.

I also find it’s best to turn the radios on first, let them beep and boop, then start the software.

Icom is finally catching up, with real USB holes in their radios.


Re: [IC-7000] Re: USB to IC-7000 interface and N1MM+

Steve W3AHL
 

Hank,

It is possible that the Radio Shack converter has a lower output high voltage on the CIV line than most others.  Comparing the IC-706 versu IC-7000 CIV circuits, the 706 has a 6.8K pullup to 5 VDC on the CIV receive transistor's base, while the 7K has 10K to 3.3 VDC.  I tried several USB to CIV adapters with two different laptops and didn't have any problems with N1MM, event after adding a 6' extension cable to both the USB and CIV cables.

So I think the 7K's CIV circuit is OK, but maybe not quite as much noise margin as the 706.

The other minor difference between the two is how the CIV jack's ground signal (CIVE) is routed.  On the 706, CIVE is routed to the CIV circuit on a signal trace.  On the 7K the CIVE signal is just connected to the Main PCB ground foil at the CIV receptacle.  So if your station/system/house RF grounding is marginal, that may introduce more noise onto the CIV signal, which the 7K may be more sensitive to.  I disconnected my radio chassis ground wire from the station single-point ground buss and didn't have a problem.  But I also have modified my power supply to float DC- from the AC earth ground to eliminate ground loops.

Have you tried disconnecting everything that isn't absolutely necessary from the radio and computer to see if the problem still remains.  If that corrects the problem, then you may have a grounding issue.  If it doesn't correct it, you could still have a grounding issue of course.  Running the radio on a 12 VDC battery or verifying your DC- isn't connected to AC ground inside the power supply (or other equipment connected to the power supply) would probably eliminate a ground loop as being the issue.

Without seeing your setup it is hard to guess all possible causes, but it only takes one seemingly minor problem to create these kinds of problems.  I still suggest replacing the Radio Shack converter if all else fails.  I haven't found the 7K's CIV circuit to be a problem for the owners that I have had direct experience with over the years, although I certainly have seen many flaky USB-CIV & serial converters, especially with RFI sensitivity on the USB interface cable.

Steve, W3AHL

---In ic7000@..., <k3ydx@...> wrote :

Steve et all-

The use of an external USB "powered" hub might be worth trying.
So far I suspect I'm dealing with a communications level issue between the 7000 and the Lenovo laptop.

Here's what I have found so far.  Radio=IC-7000, Lenovo T510 and RS USB to serial interface (20-047) results in the intermittent operation with N1MM+ software.  The radio frequency does not track as the dial is changed but will often be close to correct as the dial change is stopped but off by several hundred Hz.  Then of course the radio times out on the N1MM+ software bandmap and the LEDs on the interface quit blinking.

Same set up with an original IC-706 in play and everything works apparently as it should.  Dial rotation and then stop and the frequency displayed in the software is correct.  Mode change is tracked correctly as is the band change operation.  This would lead me to think the issue is within the IC-7000 and something to do with the CI-V circuit.

However, if I take the same setup as in the second paragraph above except plug the USB RS interface into my dual core Dell desktop, everything works as it should and as it has in the past.  

Apparently some issue exists between the communications levels of the Lenovo USB ports and the CI-V IC-7000 port which is well beyond my level of ineptitude to figure out at this time!

If I can dig up a powered USB hub I'll give that a try.

Thanks for the suggestions and input from all.

73
Hank
K3YDX


Re: [IC-7000] Tones

Robert Mueller
 

you can program the radio to send a sequence of DTMF tones. Check the manual how to accomplish that. But you can’t just key up the radio and push the DTMF tones yourself on the mic. At least not with the OEM microphone.


--... ...--
Bob Mueller
K8MD
bob@funautical.com (mailto:bob@funautical.com)

On Tuesday, December 6, 2016 at 16:49 , Phil Baird mypactor@yahoo.com [ic7000] wrote:




For some reason I can't issue tones on my radio. It just changes bands when I try to use the buttons on my mic. I know it must be something simple but I can't find it in my manual. Can anyone be of help?

Thanks, Phil


Re: [IC-7000] Tones

ww3s@...
 

The stock mic is not a dtmf mic, need to order one……

Sent from my Windows tablet

From: John Kramer jkramer@... [ic7000]
Sent: ‎Tuesday‎, ‎December‎ ‎6‎, ‎2016 ‎4‎:‎49‎ ‎PM
To: John Kramer jkramer@... [ic7000]

 

For some reason I can't issue tones on my radio.  It just changes bands when I try to use the buttons on my mic.  I know it must be something simple but I can't find it in my manual. Can anyone be of help?

Thanks, Phil



UHF self-oscillation - final result

Pasquale S
 

Hi guys
I want to thank Steve W3AHL
In my situation ALC full scale was the problem. I have done new adjustment and now ALC was perfect, I have 34 watt with full power and ALC in green scale.
I adjust TX total gain (it was a bit high), APCm ALC and DRIVE MIN.
Now I have not self oscillation, IC-7000 runs great in UHF.
Thanks a lot again Steve and thanks for all for support.

Best 73s de IW0HEX Pasquale.



Tones

Phil Baird
 

For some reason I can't issue tones on my radio.  It just changes bands when I try to use the buttons on my mic.  I know it must be something simple but I can't find it in my manual. Can anyone be of help?

Thanks, Phil

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