Re: [Flexradio] The 3000 dilemma

[N7BCP]

If you're feeding with coax, create a choke with several turns of coax at the 
antenna feedpoint.  This cured a similar problem I had with my 3k and RF in the 
shack.

-Larry

On 30.05.2012, at 07:40, John Kramer  wrote:

> Bill
> 
> I just returned 2 weeks ago from a mini DXpedition to Lesotho 7P8. I faced
> the same dilemma - I usually take along a small IC-7000 on trips such as
> these. But this time round I decided to take my Flex-3000. It performed
> very well, and I loved to have all the features of PSDR while there.
> However, I have never had problems such as yours. I only use Apple
> Mac computers - iMacs at home, and MacBook Pros when away. 
> My MacBook Pro laptop gives me a CPU load of less than 20 %.
> The grounding screw is under the power connector at the back of
> the 3000. 
> Now, if you are unable to get your setup working properly at home...you
> can be guaranteed to have problems while you are away. It appears that all 
> your problems point to your DELL laptop. If you don't have a different laptop
> that you can try, then go through your laptop and switch off or disable as 
> many
> things on it as possible - wireless adapters, bluetooth, virus programs etc 
> etc etc
> You don't want your laptop doing a myriad of things in the background while
> you are trying to run PSDR. You can also try adjusting your buffers and 
> sampling 
> in PSDR to try and make up for the rather limp laptop.
> If you can't solve this before you leave then rather take something else 
> along, to
> avoid frustrations.
> 
> Oh, enjoy your trip...nice destination you are going to !!!
> 
> 73
> John, ZS5J  C91J  7P8/ZS5J
> 
> 
> 
> 
> 
> 
> On 30 May 2012, at 6:44 AM, Dr. William J. Schmidt, II wrote:
> 
> Well I really have some choices to make this week and I'm looking for input
> (or consolation if you'd like).  I'm on my way to PJ4 very soon for 10 days
> of vacation and operating.  I always take a radio with me when we travel to
> the Caribbean. I have a blast doing so. racking up lots of contacts wherever
> we go.  Up until now, I've always taken my Icom 756 Pro II and some dipoles.
> The problem is, The 756 plus the pelican box weighs in at the 50 lb limit
> .without the power supply and dipoles!  
> 
> 
> 
> So this trip I figured I'd get smart. I take my laptop anyway, so I bought a
> Flex 3000 thinking I'd toss it in my briefcase as a much lighter solution.
> To prepare, over the past week, I've set up the station in the back yard and
> operated. just to get a feel for what was in store.  I also got a new
> antenna. a 3 element SuperAntenna YP3 which works out fine.
> but.radio-wise.results were not good.
> 
> 
> 
> My laptop is a Dell 630. has a built in fire-wire adapter, so it seemed ok
> as the software interface.  I figured it would be on the edge of processing
> power, but not wanting to invest yet another fortune in a laptop (just for
> vacations I might add) I stuck with it.  Truth is. it's at about 50%
> processing power or less.  Well about every 10th transmission, it hangs
> (never comes out of transmit).  I figured it was RF, so got a few clamp-on
> RF chokes for the fire wire and other cables.  It helps but it still hangs
> once in a while (which is majorly aggravating).  I tried some grounding
> configurations, but I guess you all know there isn't even a stud on the back
> of the radio to ground to.  So we're back to chokes for everything.  I could
> probably get things worked out if I had a couple more weeks to play with
> it..BUT.
> 
> 
> 
> Now the decision is. do I lug along the Icom 756. heavy, but tested. or do I
> take a chance and take (and possibly fight with) the 3000?  Flight leaves
> soon.
> 
> 
> 
> 
> 
> Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ/ PJ4HZ
> 
> 
> 
> Owner - Operator
> 
> Big Signal Ranch - K9ZC
> 
> Staunton, Illinois
> 
> 
> 
> email:    b...@wjschmidt.com
> 
> 
> 
> ___
> FlexRadio Systems Mailing List
> FlexRadio@flex-radio.biz
> http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
> Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/
> Knowledge Base: http://kc.flexradio.com/  Homepage: http://www.flexradio.com/
> 
> 
> ___
> FlexRadio Systems Mailing List
> FlexRadio@flex-radio.biz
> http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
> Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/
> Knowledge Base: http://kc.flexradio.com/  Homepage: http://www.flexradio.com/

___
FlexRadio Systems Mailing List
FlexRadio@flex-radio.biz
http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/
Knowledge Base: http://kc.flexradio.com/  Homepage: http://www.flexradio.com/

Re: [Flexradio] The 3000 dilemma

[John Kramer]

Bill

I just returned 2 weeks ago from a mini DXpedition to Lesotho 7P8. I faced
the same dilemma - I usually take along a small IC-7000 on trips such as
these. But this time round I decided to take my Flex-3000. It performed
very well, and I loved to have all the features of PSDR while there.
However, I have never had problems such as yours. I only use Apple
Mac computers - iMacs at home, and MacBook Pros when away. 
My MacBook Pro laptop gives me a CPU load of less than 20 %.
The grounding screw is under the power connector at the back of
the 3000. 
Now, if you are unable to get your setup working properly at home...you
can be guaranteed to have problems while you are away. It appears that all 
your problems point to your DELL laptop. If you don't have a different laptop
that you can try, then go through your laptop and switch off or disable as many
things on it as possible - wireless adapters, bluetooth, virus programs etc etc 
etc
You don't want your laptop doing a myriad of things in the background while
you are trying to run PSDR. You can also try adjusting your buffers and 
sampling 
in PSDR to try and make up for the rather limp laptop.
If you can't solve this before you leave then rather take something else along, 
to
avoid frustrations.

Oh, enjoy your trip...nice destination you are going to !!!

73
John, ZS5J  C91J  7P8/ZS5J






On 30 May 2012, at 6:44 AM, Dr. William J. Schmidt, II wrote:

Well I really have some choices to make this week and I'm looking for input
(or consolation if you'd like).  I'm on my way to PJ4 very soon for 10 days
of vacation and operating.  I always take a radio with me when we travel to
the Caribbean. I have a blast doing so. racking up lots of contacts wherever
we go.  Up until now, I've always taken my Icom 756 Pro II and some dipoles.
The problem is, The 756 plus the pelican box weighs in at the 50 lb limit
.without the power supply and dipoles!  



So this trip I figured I'd get smart. I take my laptop anyway, so I bought a
Flex 3000 thinking I'd toss it in my briefcase as a much lighter solution.
To prepare, over the past week, I've set up the station in the back yard and
operated. just to get a feel for what was in store.  I also got a new
antenna. a 3 element SuperAntenna YP3 which works out fine.
but.radio-wise.results were not good.



My laptop is a Dell 630. has a built in fire-wire adapter, so it seemed ok
as the software interface.  I figured it would be on the edge of processing
power, but not wanting to invest yet another fortune in a laptop (just for
vacations I might add) I stuck with it.  Truth is. it's at about 50%
processing power or less.  Well about every 10th transmission, it hangs
(never comes out of transmit).  I figured it was RF, so got a few clamp-on
RF chokes for the fire wire and other cables.  It helps but it still hangs
once in a while (which is majorly aggravating).  I tried some grounding
configurations, but I guess you all know there isn't even a stud on the back
of the radio to ground to.  So we're back to chokes for everything.  I could
probably get things worked out if I had a couple more weeks to play with
it..BUT.



Now the decision is. do I lug along the Icom 756. heavy, but tested. or do I
take a chance and take (and possibly fight with) the 3000?  Flight leaves
soon.





Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ/ PJ4HZ



Owner - Operator

Big Signal Ranch - K9ZC

Staunton, Illinois



email:    b...@wjschmidt.com



___
FlexRadio Systems Mailing List
FlexRadio@flex-radio.biz
http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/
Knowledge Base: http://kc.flexradio.com/  Homepage: http://www.flexradio.com/


___
FlexRadio Systems Mailing List
FlexRadio@flex-radio.biz
http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/
Knowledge Base: http://kc.flexradio.com/  Homepage: http://www.flexradio.com/

Re: [Flexradio] The 3000 dilemma

[Gary Warner]

William,

There is a grounding screw for the 3000 right under the power connector.

Gary
WG1I


On 5/29/2012 9:44 PM, Dr. William J. Schmidt, II wrote:

Well I really have some choices to make this week and I'm looking for input
(or consolation if you'd like).  I'm on my way to PJ4 very soon for 10 days
of vacation and operating.  I always take a radio with me when we travel to
the Caribbean. I have a blast doing so. racking up lots of contacts wherever
we go.  Up until now, I've always taken my Icom 756 Pro II and some dipoles.
The problem is, The 756 plus the pelican box weighs in at the 50 lb limit
.without the power supply and dipoles!



So this trip I figured I'd get smart. I take my laptop anyway, so I bought a
Flex 3000 thinking I'd toss it in my briefcase as a much lighter solution.
To prepare, over the past week, I've set up the station in the back yard and
operated. just to get a feel for what was in store.  I also got a new
antenna. a 3 element SuperAntenna YP3 which works out fine.
but.radio-wise.results were not good.



My laptop is a Dell 630. has a built in fire-wire adapter, so it seemed ok
as the software interface.  I figured it would be on the edge of processing
power, but not wanting to invest yet another fortune in a laptop (just for
vacations I might add) I stuck with it.  Truth is. it's at about 50%
processing power or less.  Well about every 10th transmission, it hangs
(never comes out of transmit).  I figured it was RF, so got a few clamp-on
RF chokes for the fire wire and other cables.  It helps but it still hangs
once in a while (which is majorly aggravating).  I tried some grounding
configurations, but I guess you all know there isn't even a stud on the back
of the radio to ground to.  So we're back to chokes for everything.  I could
probably get things worked out if I had a couple more weeks to play with
it..BUT.



Now the decision is. do I lug along the Icom 756. heavy, but tested. or do I
take a chance and take (and possibly fight with) the 3000?  Flight leaves
soon.





Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ/ PJ4HZ



Owner - Operator

Big Signal Ranch - K9ZC

Staunton, Illinois



email:  b...@wjschmidt.com



___
FlexRadio Systems Mailing List
FlexRadio@flex-radio.biz
http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/
Knowledge Base: http://kc.flexradio.com/  Homepage: http://www.flexradio.com/


___
FlexRadio Systems Mailing List
FlexRadio@flex-radio.biz
http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/
Knowledge Base: http://kc.flexradio.com/  Homepage: http://www.flexradio.com/

Re: [Flexradio] The 3000 dilemma

[Paul Delaney - K6HR]

Do you really expect anyone on the FLEX list to tell you to take an Icom?

Paul Delaney - K6HR
paul.hamra...@verizon.net
http://k6hr.dyndns.org:8080 

> -Original Message-
> From: flexradio-boun...@flex-radio.biz [mailto:flexradio-bounces@flex-
> radio.biz] On Behalf Of Dr. William J. Schmidt, II
> Sent: Tuesday, May 29, 2012 21:44
> To: flexradio@flex-radio.biz
> Subject: [Flexradio] The 3000 dilemma
> 
> Well I really have some choices to make this week and I'm looking for
> input
> (or consolation if you'd like).  I'm on my way to PJ4 very soon for 10
> days
> of vacation and operating.  I always take a radio with me when we travel
> to
> the Caribbean. I have a blast doing so. racking up lots of contacts
> wherever
> we go.  Up until now, I've always taken my Icom 756 Pro II and some
> dipoles.
> The problem is, The 756 plus the pelican box weighs in at the 50 lb limit
> .without the power supply and dipoles!
> 
> 
> 
> So this trip I figured I'd get smart. I take my laptop anyway, so I bought
> a
> Flex 3000 thinking I'd toss it in my briefcase as a much lighter solution.
> To prepare, over the past week, I've set up the station in the back yard
> and
> operated. just to get a feel for what was in store.  I also got a new
> antenna. a 3 element SuperAntenna YP3 which works out fine.
> but.radio-wise.results were not good.
> 
> 
> 
> My laptop is a Dell 630. has a built in fire-wire adapter, so it seemed ok
> as the software interface.  I figured it would be on the edge of
> processing
> power, but not wanting to invest yet another fortune in a laptop (just for
> vacations I might add) I stuck with it.  Truth is. it's at about 50%
> processing power or less.  Well about every 10th transmission, it hangs
> (never comes out of transmit).  I figured it was RF, so got a few clamp-on
> RF chokes for the fire wire and other cables.  It helps but it still hangs
> once in a while (which is majorly aggravating).  I tried some grounding
> configurations, but I guess you all know there isn't even a stud on the
> back
> of the radio to ground to.  So we're back to chokes for everything.  I
> could
> probably get things worked out if I had a couple more weeks to play with
> it..BUT.
> 
> 
> 
> Now the decision is. do I lug along the Icom 756. heavy, but tested. or do
> I
> take a chance and take (and possibly fight with) the 3000?  Flight leaves
> soon.
> 
> 
> 
> 
> 
> Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ/ PJ4HZ
> 
> 
> 
> Owner - Operator
> 
> Big Signal Ranch - K9ZC
> 
> Staunton, Illinois
> 
> 
> 
> email:    b...@wjschmidt.com
> 
> 
> 
> ___
> FlexRadio Systems Mailing List
> FlexRadio@flex-radio.biz
> http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
> Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/
> Knowledge Base: http://kc.flexradio.com/  Homepage:
> http://www.flexradio.com/


___
FlexRadio Systems Mailing List
FlexRadio@flex-radio.biz
http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/
Knowledge Base: http://kc.flexradio.com/  Homepage: http://www.flexradio.com/

[Flexradio] The 3000 dilemma

[Dr. William J. Schmidt, II]

Well I really have some choices to make this week and I'm looking for input
(or consolation if you'd like).  I'm on my way to PJ4 very soon for 10 days
of vacation and operating.  I always take a radio with me when we travel to
the Caribbean. I have a blast doing so. racking up lots of contacts wherever
we go.  Up until now, I've always taken my Icom 756 Pro II and some dipoles.
The problem is, The 756 plus the pelican box weighs in at the 50 lb limit
.without the power supply and dipoles!  

 

So this trip I figured I'd get smart. I take my laptop anyway, so I bought a
Flex 3000 thinking I'd toss it in my briefcase as a much lighter solution.
To prepare, over the past week, I've set up the station in the back yard and
operated. just to get a feel for what was in store.  I also got a new
antenna. a 3 element SuperAntenna YP3 which works out fine.
but.radio-wise.results were not good.

 

My laptop is a Dell 630. has a built in fire-wire adapter, so it seemed ok
as the software interface.  I figured it would be on the edge of processing
power, but not wanting to invest yet another fortune in a laptop (just for
vacations I might add) I stuck with it.  Truth is. it's at about 50%
processing power or less.  Well about every 10th transmission, it hangs
(never comes out of transmit).  I figured it was RF, so got a few clamp-on
RF chokes for the fire wire and other cables.  It helps but it still hangs
once in a while (which is majorly aggravating).  I tried some grounding
configurations, but I guess you all know there isn't even a stud on the back
of the radio to ground to.  So we're back to chokes for everything.  I could
probably get things worked out if I had a couple more weeks to play with
it..BUT.

 

Now the decision is. do I lug along the Icom 756. heavy, but tested. or do I
take a chance and take (and possibly fight with) the 3000?  Flight leaves
soon.

 

 

Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ/ PJ4HZ

 

Owner - Operator

Big Signal Ranch - K9ZC

Staunton, Illinois

 

email:    b...@wjschmidt.com

 

___
FlexRadio Systems Mailing List
FlexRadio@flex-radio.biz
http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/
Knowledge Base: http://kc.flexradio.com/  Homepage: http://www.flexradio.com/

[Flexradio] Flex Control observation...

[Tim Lemmon]

Hey everyone.

Today I received my Flex Control here at home.  Installed it fine, but as
the directions suggested, I ended up with a com port conflict in Windows.
Windows picked one of the same com ports already in use by my VSP emulator.

The directions say if we use a com port emulator, note all our settings,
then delete the emulator, install the Flex Control, then re-install the
emulator (and of course set it all up again).  Why go through all this
trouble?  I simply went into the properties of my Flex Control (Windows 7),
chose the port settings tab, then clicked on the advanced button.  From
there, I could easily change the Flex Control com port to another unused
port.  After a quick reboot, everything worked fine.

Perhaps Flex can change their documentation for other folks with their new
Flex knob?

Tim, WK4U
___
FlexRadio Systems Mailing List
FlexRadio@flex-radio.biz
http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/
Knowledge Base: http://kc.flexradio.com/  Homepage: http://www.flexradio.com/

Re: [Flexradio] Please help find

[Lee Mushel]

Ed,

Thank you so much!   It isn't the one I was looking for but I surely did enjoy 
Riley's comments!   I hope others look at it, too!

73

Lee
  - Original Message - 
  From: Ed Haskell 
  To: Lee Mushel 
  Cc: FlexRadio 
  Sent: Tuesday, May 29, 2012 12:46 PM
  Subject: Re: [Flexradio] Please help find


  Lee,


  I haven't found the speech you are looking for yet but I stumbled upon this 
and it's wonderful:


  http://www.n8xym.com/2012/01/riley-hollingsworth-one-big-knob-video.html


  73
  Ed W1PN
   
___
FlexRadio Systems Mailing List
FlexRadio@flex-radio.biz
http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/
Knowledge Base: http://kc.flexradio.com/  Homepage: http://www.flexradio.com/

[Flexradio] Win Test -MMTTY engine Ptt Power SDR

[Hector Garcia XE2K]

Hi Guys

I have the following question, but let me explain 

I have  my Flex 3k working  fine  with Fldigi,  HRD and MMTTY stand alone
running the VAC and  VSP manager  all integrated and working fine

But I want to use a software all in one the lightest possible for my small 
needs  here in the station

I found that  Fldigi works  but  I don't like the integrated log, for that 
reason I'm using the Win Test
the Win Test works fine for  CW using the F-keys and keyboard no problems

But here is my problem,  I load the MMTTY engine to WT and  made it receive and 
 
transmit  but  NO PTT

I move all what  I can remember or can image  can work, but not at the moment, 
even  create another port, 


Will like to know  from some one who made it work  and how.

How to make work the  RTTY (PTT) installed in  Win Test  with power SDR?


 J.Hector Garcia  XE2K / AD6D
Mexicali B.C  DM22fp
P.O.Box 73 
El Centro CA 92244-0073
http://xe2k.net
___
FlexRadio Systems Mailing List
FlexRadio@flex-radio.biz
http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/
Knowledge Base: http://kc.flexradio.com/  Homepage: http://www.flexradio.com/

Re: [Flexradio] Please help find

[Ed Haskell]

Lee,

I haven't found the speech you are looking for yet but I stumbled upon this
and it's wonderful:

http://www.n8xym.com/2012/01/riley-hollingsworth-one-big-knob-video.html

73
Ed W1PN

On Tue, May 29, 2012 at 1:05 PM, Lee Mushel  wrote:

> Some time ago a "farewell speech" by a retiring FCC person was published
> and I think it was on this reflector---I might be wrong that point.
>  Anyway, it contained some speculation about the future of amateur radio
> and ended with a rather long and encouraging assessment of software defined
> radio.   I thought I had saved this but I guess I didn't.   If anyone
> recognizes the posting from my miserable description and still have it I
> would be really grateful if you would send it to me.  Once again I'm trying
> to explain the value of SDR to someone and need some help!
>
> 73
>
> Lee  K9WRU
> ___
> FlexRadio Systems Mailing List
> FlexRadio@flex-radio.biz
> http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
> Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/
> Knowledge Base: http://kc.flexradio.com/  Homepage:
> http://www.flexradio.com/
>
___
FlexRadio Systems Mailing List
FlexRadio@flex-radio.biz
http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/
Knowledge Base: http://kc.flexradio.com/  Homepage: http://www.flexradio.com/

[Flexradio] Please help find

[Lee Mushel]

Some time ago a "farewell speech" by a retiring FCC person was published and I 
think it was on this reflector---I might be wrong that point.  Anyway, it 
contained some speculation about the future of amateur radio and ended with a 
rather long and encouraging assessment of software defined radio.   I thought I 
had saved this but I guess I didn't.   If anyone recognizes the posting from my 
miserable description and still have it I would be really grateful if you would 
send it to me.  Once again I'm trying to explain the value of SDR to someone 
and need some help!

73

Lee  K9WRU
___
FlexRadio Systems Mailing List
FlexRadio@flex-radio.biz
http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/
Knowledge Base: http://kc.flexradio.com/  Homepage: http://www.flexradio.com/

Re: [Flexradio] Mailing List Down?

[Ross Stenberg]

It's down and so is my phone...will give you a call.

On 5/29/2012 7:26 AM, TM wrote:

Just wondering if the list is down?  Or, did we use up all the known
FlexTrons in the universe discussing the new radios?  :)

73, Tom
K1FR



___
FlexRadio Systems Mailing List
FlexRadio@flex-radio.biz
http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/
Knowledge Base: http://kc.flexradio.com/  Homepage: http://www.flexradio.com/




___
FlexRadio Systems Mailing List
FlexRadio@flex-radio.biz
http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/
Knowledge Base: http://kc.flexradio.com/  Homepage: http://www.flexradio.com/

[Flexradio] Mailing List Down?

[TM]

Just wondering if the list is down?  Or, did we use up all the known
FlexTrons in the universe discussing the new radios?  :)

73, Tom
K1FR



___
FlexRadio Systems Mailing List
FlexRadio@flex-radio.biz
http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/
Knowledge Base: http://kc.flexradio.com/  Homepage: http://www.flexradio.com/