Re: Pregaming a Memory Channel
Danny, thanks for the tip, I'll try it this weekend.
Gene, K7HPF
On 08/10/2024 9:41 AM PDT Danny K5CG <k5cg@...> wrote:
?
?
MW is on the S3 menu.
?
73
Danny, K5CG
HH 550-0609
SKCC 14257
?
From: "Gene Smith - K7HPF via groups.io" <edsmith1702@...>
To: "ic7000" < [email protected]>
Sent: Saturday, August 10, 2024 11:07:10 AM
Subject: Re: [ic7000] Pregaming a Memory Channel
?
Bob, thanks for the tip - I'll try it this weekend.
?
Gene
On 08/10/2024 6:10 AM PDT Bob <w4jfabob@...> wrote:
?
?
Do you have a "MW" or "memory write" button? I can't look at a manual right now but it's common for Icom to have this button.
Some work this way... quick push of the MW button, the memory channel number blinks, turn knob to select the memory channel
you want, then press and hold the MW button until the radio "beeps"
?
The 7000 may not work that way but like I mentioned, that's been a common way for Icom to do it in the past.
?
Bob W4JFA
On Fri, Aug 9, 2024 at 1:09?PM Gene Smith - K7HPF via <edsmith1702= [email protected]> wrote:
Once I get the FM freq, dup, & tone working (so I can connect with the repeater) I push "V menugrp" to exit the tone set mode.??
?
What are the next steps to program a memory channel?
?
Gene, K7HPF
?
?
|
Re: Pregaming a Memory Channel
MW is on the S3 menu.
73
Danny, K5CG
HH 550-0609
SKCC 14257
From: "Gene Smith - K7HPF via groups.io" <edsmith1702@...> To: "ic7000" < [email protected]> Sent: Saturday, August 10, 2024 11:07:10 AM Subject: Re: [ic7000] Pregaming a Memory Channel
Bob, thanks for the tip - I'll try it this weekend.
?
Gene
On 08/10/2024 6:10 AM PDT Bob <w4jfabob@...> wrote:
?
?
Do you have a "MW" or "memory write" button? I can't look at a manual right now but it's common for Icom to have this button.
Some work this way... quick push of the MW button, the memory channel number blinks, turn knob to select the memory channel
you want, then press and hold the MW button until the radio "beeps"
?
The 7000 may not work that way but like I mentioned, that's been a common way for Icom to do it in the past.
?
Bob W4JFA
On Fri, Aug 9, 2024 at 1:09?PM Gene Smith - K7HPF via <edsmith1702= [email protected]> wrote:
Once I get the FM freq, dup, & tone working (so I can connect with the repeater) I push "V menugrp" to exit the tone set mode.??
?
What are the next steps to program a memory channel?
?
Gene, K7HPF
?
?
|
Re: Pregaming a Memory Channel
Bob, thanks for the tip - I'll try it this weekend.
?
Gene
On 08/10/2024 6:10 AM PDT Bob <w4jfabob@...> wrote:
?
?
Do you have a "MW" or "memory write" button? I can't look at a manual right now but it's common for Icom to have this button.
Some work this way... quick push of the MW button, the memory channel number blinks, turn knob to select the memory channel
you want, then press and hold the MW button until the radio "beeps"
?
The 7000 may not work that way but like I mentioned, that's been a common way for Icom to do it in the past.
?
Bob W4JFA
On Fri, Aug 9, 2024 at 1:09?PM Gene Smith - K7HPF via <edsmith1702= [email protected]> wrote:
Once I get the FM freq, dup, & tone working (so I can connect with the repeater) I push "V menugrp" to exit the tone set mode.??
?
What are the next steps to program a memory channel?
?
Gene, K7HPF
?
?
|
Re: Pregaming a Memory Channel
Do you have a "MW" or "memory write" button? I can't look at a manual right now but it's common for Icom to have this button. Some work this way... quick push of the MW button, the memory channel number blinks, turn knob to select the memory channel you want, then press and hold the MW button until the radio "beeps"
The 7000 may not work that way but like I mentioned, that's been a common way for Icom to do it in the past.
Bob W4JFA
On Fri, Aug 9, 2024 at 1:09?PM Gene Smith - K7HPF via <edsmith1702= [email protected]> wrote: Once I get the FM freq, dup, & tone working (so I can connect with the repeater) I push "V menugrp" to exit the tone set mode.??
?
What are the next steps to program a memory channel?
?
Gene, K7HPF
|
Hi All! ?
?
? ?I primarily use my IC-7000 for FT8 ops these days, where the latest "In Thing" is SuperFox mode. It's new, and we're all in the learning phase of figuring out how to get the best performance out of it. On the currently running DXPedition (N5J) I've been having some luck with improving my reception/decoding under some circumstances by turning on the Noise Blanker function and playing a bit with the controls - I suspect because the Noise Blanker is helping to squish some of my local QRN without messing with the received SuperFox waveform.
?
? ?However, I'd love to have a better understanding of what the Noise Blanker is actually doing, and how the NB Level and NB Width controls affect that. I'm guessing that NB is some kind of peak limiter designed to clip impulse noise (where the clipping level is controlled by NB Level?). But if so it's not obvious what NB Width would do...? (Aurally the effect of the two controls sound very similar to me). Also, is the Noise Blanker upstream of the Rx AGC? It seems like turning NB on boosts the received (good) signal a little (as seen on the waterfall) and I'm wondering whether that's because reducing the incoming noise upstream means the Rx AGC is backing off a little bit.
?
? ?Unfortunately my IC-7000 Instruction Manual hasn't been super helpful, other than to tell me that the NB Level control adjusts the noise blanker level and the NB Width control adjusts the noise blanker width... ?:-(
?
? ?TIA for any knowledge and advice!
?
? ?Richard, ?NC6RJ
|
Pregaming a Memory Channel
Once I get the FM freq, dup, & tone working (so I can connect with the repeater) I push "V menugrp" to exit the tone set mode.??
?
What are the next steps to program a memory channel?
?
Gene, K7HPF
|
Re: Driver Board Replacement, adjustments required?
Thanks very much Paul.
I will give this method a try. ?
Cheers and 73
Dan VE7CTN
?
|
Re: Driver Board Replacement, adjustments required?
It’s just volume. Whistle,
say a long ‘fiiiiiive’, white noise; all good. Just drive it as hard as you can.
You don’t need an RF meter of any sort to set idle current.
?
Thank You
?
Paul W. Hansen, W6XA
Amateur Radio Service
2134 Carthage Road
Tucker, GA 30084
(864) 222-3539
www.amateurradioservice.com
?
toggle quoted message
Show quoted text
From: [email protected]
[mailto:[email protected]] On Behalf Of Dan Marriott VE7CTN
Sent: Friday, August 2, 2024 17:55
To: [email protected]
Subject: Re: [ic7000] Driver Board Replacement, adjustments required?
?
Thanks for the feedback Paul.
For the idle current adjustment all I need is an rf meter
and an ammeter. That’s ok.
For the power adjustments, when you say “saturate the mic
with audio” - white noise or whistling? Does audio frequency matter, or is it
just the volume?
Thanks again.
|
Re: Driver Board Replacement, adjustments required?
Thanks for the feedback Paul.
Very good.
For the idle current adjustment all I need is an rf meter and an ammeter. That’s ok.
For the power adjustments, when you say “saturate the mic with audio” - white noise or whistling? Does audio frequency matter, or is it just the volume?
Thanks again.
Dan VE7CTN
|
Re: Driver Board Replacement, adjustments required?
You can probably skip the drive
adjustments and maybe the power output adjustments but you absolutely need to
do the idle adjustment. You do need a special set up for the drive (not driver)
adjustment. For power out adjustments, all you need to do is saturate the
microphone with audio while adjusting the tuning dial.
?
Thank You
?
Paul W. Hansen, W6XA
Amateur Radio Service
2134 Carthage Road
Tucker, GA 30084
(864) 222-3539
www.amateurradioservice.com
?
toggle quoted message
Show quoted text
From: [email protected]
[mailto:[email protected]] On Behalf Of Dan Marriott VE7CTN
Sent: Friday, August 2, 2024 09:27
To: [email protected]
Subject: [ic7000] Driver Board Replacement, adjustments required?
?
I have a couple of 7ks. ?A newer one works perfectly,
as far as I can tell. ?An older one has low output and the driver board is
suspect. ?I intend to replace the driver board - new parts and board are
on the way.?
My question: ?following the board installation, are the adjustments (as
recommended by Icom) necessary or optional? ?A Service Bulletin of
Feb/2010 outlines a multi step adjustment procedure requiring equipment I don’t
have - that’s the reason for this question. ?
I want to replace the board myself, I’m capable of doing that. ?But the
adjustments I cannot do without purchasing equipment at expense. ?
So, ?if the adjustments are necessary, then I might just as well replace
the board and send it to Icom to do the adjustments… may be cheaper than buying
new equipment.
Any thoughts or advice from this group?
Thank you for getting this far ….
|
Driver Board Replacement, adjustments required?
Hello All,
I have a couple of 7ks. ?A newer one works perfectly, as far as I can tell. ?An older one has low output and the driver board is suspect. ?I intend to replace the driver board - new parts and board are on the way.?
My question: ?following the board installation, are the adjustments (as recommended by Icom) necessary or optional? ?A Service Bulletin of Feb/2010 outlines a multi step adjustment procedure requiring equipment I don’t have - that’s the reason for this question. ?
I want to replace the board myself, I’m capable of doing that. ?But the adjustments I cannot do without purchasing equipment at expense. ?
So, ?if the adjustments are necessary, then I might just as well replace the board and send it to Icom to do the adjustments… may be cheaper than buying new equipment.
Any thoughts or advice from this group?
Thank you for getting this far ….
Dan. VE7CTN
|
Re: (Almost) Dead IC-7000
It's an old topic, but just to affirm that replacing?C501 & C502 for new ones solved my problem.
|
PLEASE start a new topic!
73
Danny, K5CG
HH 550-0609
SKCC 14257
From: "Rupert Walford" <rupert.walford@...> To: "ic7000" < [email protected]> Sent: Wednesday, July 24, 2024 9:55:19 PM Subject: Re: [ic7000] Wanted: MFJ-7000
Looking for a working RF board for my 7000? On Wed, 24 Jul 2024 at 4:34?PM, bobsayers2000 via <bobsayers2000= [email protected]> wrote: That would only give me the AATU functions (for which I have many other choices) though, and not the other features of the MFJ-706 or 7000
Bob
On Wed, 24 Jul 2024 at 15:24, J.D. Barron I believe that you will find it far easier to find an MFJ 939I like I used with my IC-7000 with no problems
?
JD
KE4MD
?
|
Looking for a working RF board for my 7000?
On Wed, 24 Jul 2024 at 4:34?PM, bobsayers2000 via <bobsayers2000= [email protected]> wrote: That would only give me the AATU functions (for which I have many other choices) though, and not the other features of the MFJ-706 or 7000
Bob
On Wed, 24 Jul 2024 at 15:24, J.D. Barron I believe that you will find it far easier to find an MFJ 939I like I used with my IC-7000 with no problems
?
JD
KE4MD
?
|
That would only give me the AATU functions (for which I have many other choices) though, and not the other features of the MFJ-706 or 7000
Bob
On Wed, 24 Jul 2024 at 15:24, J.D. Barron <jeter.d.barron@...> wrote: I believe that you will find it far easier to find an MFJ 939I like I used with my IC-7000 with no problems
?
JD
KE4MD
?
|
I believe that you will find it far easier to find an MFJ 939I like I used with my IC-7000 with no problems
?
JD
KE4MD
?
|
Hi, All,
I'm still seriously searching for an MFJ-7000, or an MFJ-706, for an emcomms project.
Bob, G8IYK
|
Hi
If the defect appeared after the driver was repaired, I will
change 2 ribbon cable between PA unit and MAIN unit.
73s Pasquale IW0HEX
Il 23/07/2024 22:36, Tony Eagling ha
scritto:
toggle quoted message
Show quoted text
G'day....
I have an IC7000 on the bench that has me stumped for an
answer for a few months now, it came to me from a friend and the
driver had burnt up with the owner noting that it had odd audio
and the power meter would go up on SSB with no audio applied so
I suspected RF getting back into the unit being the cause of the
failure. I checked the driver model and it was the later type so
I ordered one and replaced it.
All checked ok after repair and it transmitted fine but after
a few days the meter issue and bad audio returned, I put the
unit on the bench, on a dummy load, no mic, just a switch and
the fault persists, I measured power at the driver, nothing in,
nothing out, the DC is ok with no RF on it so something is
sending the unit into a fault state. I contacted Icom and they
said do all transmitter alignments and have done so, no change,
any clues on this one?
I did see an article that the AGC sense line needs a resistor
changed from 0 Ohms to 330 Ohms if the unit had an early driver
and a later one fitted but as far as i know this has always had
the later driver, the serial number is missing off the chassis
that makes it a bit more difficult to be 100% sure on what the
build was on it.
Any help would be greatly appreciated.
Thanks
?
Regards - Tony Eagling Vk7YBG
|
G'day....
I have an IC7000 on the bench that has me stumped for an answer for a few months now, it came to me from a friend and the driver had burnt up with the owner noting that it had odd audio and the power meter would go up on SSB with no audio applied so I suspected RF getting back into the unit being the cause of the failure. I checked the driver model and it was the later type so I ordered one and replaced it.
All checked ok after repair and it transmitted fine but after a few days the meter issue and bad audio returned, I put the unit on the bench, on a dummy load, no mic, just a switch and the fault persists, I measured power at the driver, nothing in, nothing out, the DC is ok with no RF on it so something is sending the unit into a fault state. I contacted Icom and they said do all transmitter alignments and have done so, no change, any clues on this one?
I did see an article that the AGC sense line needs a resistor changed from 0 Ohms to 330 Ohms if the unit had an early driver and a later one fitted but as far as i know this has always had the later driver, the serial number is missing off the chassis that makes it a bit more difficult to be 100% sure on what the build was on it.
Any help would be greatly appreciated.
Thanks
?
Regards - Tony Eagling Vk7YBG
|
Pasquale, Paul, Thank you. I see Mouser has them in stock, $21. I may attempt to fix that burned board. Good project for a rainy day. Shipping to you may be quite expensive but it's only?900 miles from me here near Charlotte, North Carolina.
I did use a light coating of thermal grease. Like I said a light coating. I guess if my friend gets 10 or 15 years out of it I'll be happy. Maybe that 1 ohm resistor isn't a guarantee, it obviously will help.
73, Bob W4JFA
Thanks Bob
I fixed 2 ICOM 7000 with PD50015 burnt ; compliments for your job
and thanks for your feedback
Best 73 de IW0HEX Pasquale
(Rome, ITALY)
Il 23/07/2024 19:34, Bob ha scritto:
Hi all, I've attached a picture of the burned and
new driver boards. There is a 1 ohm resistor on both. I hope the
picture isn't
too large for groupsIO.
Bob W4JFA
Congratulations
on
successfully replacing the driver board in your
IC-7000. Replacing those flex
cables from the PA to the MAIN is a real
challenge.
?
Now
for the reason I’m jumping in on this. The driver is
not being
damaged from excessive heat. No IC-7000’s have any
heatsink compound under the
metal substrate. Those driver transistors and the
circuit they are in seem to
be barely stable. I believe they are breaking into
an oscillation and setting
themselves on fire. Many IC-7000’s have come through
here with a smoked driver.
Almost all of them melted down while in receive.
Several smoked without ever transmitting
at all.
?
The
1 ohm resistor place in the source lead is designed
to provide
a bit of negative feedback in hopes of halting
oscillation. It’s partially successful.
I’ve repaired and replaced drivers that have been
updated too.
?
Thank
You
?
Paul
W. Hansen, W6XA
Amateur
Radio Service
2134
Carthage Road
Tucker,
GA 30084
(864)
222-3539
?
?
Got it done. Full power out on
all bands. Old board burned.
There was no heat sink grease on it. It looks like
the heat sink design is good
but why would they apply grease on everything else
but not that?
Years ago I replaced an RF
brick in an Icom dual band
mobile, IC207. No heat sink grease on that either.
It does now. I don't get it.
Yes the radio gets quite warm.
Did very little transmitting
and still warm. A while back I worked on a
friend's 706. I was on the air
testing and talking to a friend and noticed it was
getting quite warm. My
friend that I was talking to owns about three
706's. He said that's normal.
That made me feel better cuzz I was getting
concerned.
Thanks guys. I would like to be
a 7000 owner someday
73, Bob W4JFA (near Charlotte,
NC)
?
On Mon, Jul 22, 2024, 7:41 AM
RICHARD OLSON via
<richard777=[email protected]>
wrote:
The 7000 notoriously
runs
hot. I have had mine for over 10 years and
like a Timex watch it takes a
licking and keeps on ticking. I keep a small
fan blowing from the back on the
heat sink towards the front.?
Geoff, Thank you. I'll
start on the radio Monday USA eastern
time. I don't know if the new board has the
resistor or not but maybe I can add
one if it doesn't. If the added resistor is
the only change then I'm sure
there's no reason why I can't add one. I've
done things like that B4. My gut
feeling is if I can add more heat sinking,
that will help. Not sure until I see
it.?
?
The driver pcb is not
too difficult to get out and you will
see the signs if it was the cause of the
smoke. If your new driver board has
the new resistor fitted you're good to
go. But you will have to go through the
adjustment procedure contained in the
manual. I've replaced 2 and they're
still
working fine
Take pictures before
the disassembly, it really helps.
?
?
|
Danny K5CG
Bob