Elecraft

K3 FM Operation

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kd1na

K3 FM Operation

Okay people I have a question.

How do I get more then 2 watts out of my K3 on FM?

I have the FM filter installed and turned on. I have the FM filter bandwidth set at 13 KHZ..
I can tune successfully and put out power in all modes except FM (2 watts out max.

The MF mode is working I checked it with another receiver but no real power out.

My K3 has an operating KPA3 and tuner.

Any suggestions would be greatly appreciated.

Thanks
73
Dave KD1NA
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john petters

Re: K3 FM Operation

Hi Dave,
My K3 puts out the full 12 watts on FM. Basic rig, no PA, nor ATU. In
fact I have been woirking some EU stations on the Sporadic E opening on
10FM today.
73
John G3YPZ

Dave & Jeanne Robertson wrote:

> Okay people I have a question.
>
> How do I get more then 2 watts out of my K3 on FM?
>
> I have the FM filter installed and turned on. I have the FM filter bandwidth set at 13 KHZ..
> I can tune successfully and put out power in all modes except FM (2 watts out max.
>
> The MF mode is working I checked it with another receiver but no real power out.
>
> My K3 has an operating KPA3 and tuner.
>
> Any suggestions would be greatly appreciated.
>
> Thanks
> 73
> Dave KD1NA
> _______________________________________________
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Julian, G4ILO

Re: K3 FM Operation

john petters wrote

Hi Dave,
My K3 puts out the full 12 watts on FM. Basic rig, no PA, nor ATU. In
fact I have been woirking some EU stations on the Sporadic E opening on
10FM today.
73
John G3YPZ

Mine will put out 100W, though it caused a squawking noise to come from the shack computer and the mouse pointer to freeze! So I have been working 10 FM using 30W. K3 stays cool and I haven't heard any fans come on. I asked for audio reports and twice received the reply "beautiful audio".

If you can't get full audio then the only thing I can think of is to check the TX Gain calibration on 10m. Can you get full power out on CW at that end of the band?

When doing the gain calibration on mine I noticed that the current meter on my power supply only showed about 8A for 50W on 10m compared to about 12A on the other bands. That struck me as a bit odd (the K2 was least efficient on 10m) but it seems to work OK so I haven't investigated further.

Julian, G4ILO. K2 #392 K3 #222 KX3 #110
* G4ILO's Shack - http://www.g4ilo.com
* KComm - http://www.g4ilo.com/kcomm.html
* KTune - http://www.g4ilo.com/ktune.html

Charly

RE: K3 FM Operation ???

So many msg abt K3 and FM..... I sit puzzled.... why in the world would one bother to wait and

buy a K3 JUST TO RUN FM??? The K3 is a CW radio..... pure and simple, and the other modes

are just thrown in.... My point is why waste a great K3 on something virtually any radio today

can do well....FM !!??!! That is, no use for vy narrow filtering in K3 on FM, nor many of its other

features... and there are rcvrs more sensitive if u must have that..... Sign me puzzled.... 73

Charles Harpole
[hidden email]

> Date: Sun, 25 May 2008 07:36:46 -0700
> From: [hidden email]
> To: [hidden email]
> Subject: Re: [Elecraft] K3 FM Operation
>
>
>
> john petters wrote:
>>
>> Hi Dave,
>> My K3 puts out the full 12 watts on FM. Basic rig, no PA, nor ATU. In
>> fact I have been woirking some EU stations on the Sporadic E opening on
>> 10FM today.
>> 73
>> John G3YPZ
>>
> Mine will put out 100W, though it caused a squawking noise to come from the
> shack computer and the mouse pointer to freeze! So I have been working 10 FM
> using 30W. K3 stays cool and I haven't heard any fans come on. I asked for
> audio reports and twice received the reply "beautiful audio".
>
> If you can't get full audio then the only thing I can think of is to check
> the TX Gain calibration on 10m. Can you get full power out on CW at that end
> of the band?
>
> When doing the gain calibration on mine I noticed that the current meter on
> my power supply only showed about 8A for 50W on 10m compared to about 12A on
> the other bands. That struck me as a bit odd (the K2 was least efficient on
> 10m) but it seems to work OK so I haven't investigated further.
>
> -----
> Julian, G4ILO K3 s/n: 222 K2 s/n: 392
> G4ILO's Shack: www.g4ilo.com
> Zerobeat Ham Forums: www.zerobeat.net/smf
> --
> View this message in context: http://www.nabble.com/K3-FM-Operation-tp17457370p17458571.html
> Sent from the Elecraft mailing list archive at Nabble.com.
>
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Ian Maude

Re: K3 FM Operation ???

Charles Harpole wrote:
> So many msg abt K3 and FM..... I sit puzzled.... why in the world would one bother to wait and
>
> buy a K3 JUST TO RUN FM??? The K3 is a CW radio..... pure and simple, and the other modes
>
The K3 is a multi-mode radio Charles. 10FM is a particular favourite
for me and I always missed this in the K2. The 'other modes' are not
simply just thrown in, they have been planned and executed beautifully.
If you only want cw, try a K1 or a KX1.

73 Ian

--

Ian J Maude, G0VGS
SysOp GB7MBC DX Cluster
Member RSGB, GQRP
K2 #4044 |K3 #455

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Brian Lloyd-6

Re: K3 FM Operation ???

In reply to this post by Charly

On May 25, 2008, at 7:57 AM, Charles Harpole wrote:

>
> So many msg abt K3 and FM..... I sit puzzled.... why in the world
> would one bother to wait and
>
> buy a K3 JUST TO RUN FM??? The K3 is a CW radio..... pure and
> simple, and the other modes
>
> are just thrown in.... My point is why waste a great K3 on
> something virtually any radio today
>
> can do well....FM !!??!! That is, no use for vy narrow filtering
> in K3 on FM, nor many of its other
>
> features... and there are rcvrs more sensitive if u must have
> that..... Sign me puzzled.... 73

The K3 is a great receiver for whatever mode. One problem I have
always had to contend with in FM is desense from a strong in-band
signal. I would hope that would not be a problem with the K3 as it is
with most purpose-built 'FM' receivers.

If you think about it, the receiver is a linear translator. It takes a
signal at a high frequency and it translates it to a very low
frequency while preserving the time, amplitude, and frequency
relationship between spectral lines in the passband. In the case of
SSB it translates it to baseband where the ear detects it. In the case
of CW it translates it to a very low (AF) frequency where the ear
again acts as a detector. In the case of digital modes like FM, PSK,
MFSK, RTTY, PACTOR, etc., it translates the signal to a very low IF
(about 1.5KHz) where it is detected by hardware operating there. The
point is that, while the end-function is different, the mode of
operation is similar. The receiver is a linear translator to either
baseband or very low IF.

--

73 de Brian, WB6RQN
Brian Lloyd - brian HYPHEN wb6rqn AT lloyd DOT com

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Julian, G4ILO

Re: K3 FM Operation ???

I don't recall anyone saying they bought "a K3 JUST TO RUN FM". But the great thing about this hobby is that there are so many different ways to enjoy it. Some people may choose to work only CW. Others get their fun trying all the modes available to them. The great thing about the K3 is that it allows you to do whatever you are interested in with no compromise.

The K3 is the finest radio I have used for HF FM. Those that I have used in the past relied on a second IF ceramic filter for their FM selectivity, so if there was a strong station on one frequency it would spoil reception of another 10KHz away. During sporadic E openings when stations tend to be either strong or gone, it was often a mess. With the K3 and its dedicated crystal filter in the first IF every station came through crystal clear with no adjacent channel interference. The great audio reports just added to the enjoyment.

Julian, G4ILO. K2 #392 K3 #222 KX3 #110
* G4ILO's Shack - http://www.g4ilo.com
* KComm - http://www.g4ilo.com/kcomm.html
* KTune - http://www.g4ilo.com/ktune.html

KK7P

OT: We're on Mars!!

Phoenix has landed!

Excited in Mt Vernon (KK7P)

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Mike Markowski

Re: OT: We're on Mars!!

Bartender, I'll have one of whatever he had... :-)

Lyle Johnson wrote:
> Phoenix has landed!
>
> Excited in Mt Vernon (KK7P)

Seriously, that's so great to see. NASA was giving just 50-50 odds of a
successful landing. The next step could be as exciting, depending on
what it finds.

Mike ab3ap
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dave.wilburn

Re: OT: We're on Mars!!

Heck of a postage on that QSL card......wonder if they are on
LOTW......wait....that doesn't work either, LOM?

Dave Wilburn
K4DGW
K2/100 - S/N 5982
K3/100 - S/N 766

"For those who fought for it, freedom has a flavor the protected will
never know."

Mike Markowski wrote:

> Bartender, I'll have one of whatever he had... :-)
>
> Lyle Johnson wrote:
>> Phoenix has landed!
>>
>> Excited in Mt Vernon (KK7P)
>
> Seriously, that's so great to see. NASA was giving just 50-50 odds of a
> successful landing. The next step could be as exciting, depending on
> what it finds.
>
> Mike ab3ap
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AJSOENKE

Re: OT: We're on Mars!!

In reply to this post by KK7P

If you guys are excited, you can only imagine how some of us who have
hardware on board feel!!

Al WA6VNN

**************Get trade secrets for amazing burgers. Watch "Cooking with
Tyler Florence" on AOL Food.
(http://food.aol.com/tyler-florence?video=4&?NCID=aolfod00030000000002)
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David Cutter

Re: OT: We're on Mars!!

Tell us about it

David
G3UNA

> If you guys are excited, you can only imagine how some of us who have
> hardware on board feel!!
>
> Al WA6VNN
>
>
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w7aqk

Re: OT: We're on Mars!!

In reply to this post by AJSOENKE

Heck! We should all feel excited since we have money invested in it!!!!!
Your tax dollars at work! Congrats to the U of Arizona team too.

Dave W7AQK
University of Arizona Alum (But absolutely no comprehension about aerospace
engineering!)

----- Original Message -----
From: <[hidden email]>
To: <[hidden email]>
Sent: Sunday, May 25, 2008 11:05 PM
Subject: Re: [Elecraft] OT: We're on Mars!!

> If you guys are excited, you can only imagine how some of us who have
> hardware on board feel!!
>
> Al WA6VNN
>
>
>
> **************Get trade secrets for amazing burgers. Watch "Cooking with
> Tyler Florence" on AOL Food.
> (http://food.aol.com/tyler-florence?video=4&?NCID=aolfod00030000000002)
> _______________________________________________
> Elecraft mailing list
> Post to: [hidden email]
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>

Tom Wylie

Re: OT: We're on Mars!!

In reply to this post by AJSOENKE

I'm sorry if I cant seem to whip up the enthusiasm. The pictures I saw
on TV might as well have come from the Sahara Desert.....I think the
cost would be better spent on things like rebuilding Burma and
China...Personally its not important for me to know what the surface of
Mars is like. Its extremely unlikley I will ever go there..... :-(

Tom
GM4FDM

[hidden email] wrote:

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k0wa@swbell.net

Re: OT: We're on Mars!! Worth the Science

Tom....

China has enough money to rebuild....mostly mine and yours. Burma is a sad state of affairs which needs the whole world to see that despots are bad and do something about them. Money will save Burma now, but not fix Burma for the future.

Now Mars and the science it will bring is fascinating and well worth the money us Yanks have spent on it. The technology is fantastic....everything was done by remote or by software...and new technologies were invented. You will benefit from those in the future. Kudos to the Mars team who made a basket (swish) from several million miles away! Fantastic.

Think a little broader...

I wonder what the call sign on Mars would be? We would have to come up with a whole new call sign plan. HMMMMM..... What would the prefix be for Mercury, Venus, Mars, and the moons of the gas Giants? Think of contesting between Mars and Earth....

Lee - K0WA

In our day and age it seems that Common Sense is in short supply. If you don't have any Common Sense - get some Common Sense and use it. If you can't find any Common Sense, ask for help from somebody who has some Common Sense. Is Common Sense divine?
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dave.wilburn

Re: OT: We're on Mars!! Worth the Science

Well stated, and agree 100%. Would love to hear more about the
packages and such on board, from those involved.

Dave Wilburn
K4DGW
K2/100 - S/N 5982
K3/100 - S/N 766

"For those who fought for it, freedom has a flavor the protected will
never know."

Lee Buller wrote:

>
> Tom....
>
> China has enough money to rebuild....mostly mine and yours. Burma is a sad state of affairs which needs the whole world to see that despots are bad and do something about them. Money will save Burma now, but not fix Burma for the future.
>
> Now Mars and the science it will bring is fascinating and well worth the money us Yanks have spent on it. The technology is fantastic....everything was done by remote or by software...and new technologies were invented. You will benefit from those in the future. Kudos to the Mars team who made a basket (swish) from several million miles away! Fantastic.
>
> Think a little broader...
>
> I wonder what the call sign on Mars would be? We would have to come up with a whole new call sign plan. HMMMMM..... What would the prefix be for Mercury, Venus, Mars, and the moons of the gas Giants? Think of contesting between Mars and Earth....
>
> Lee - K0WA
>
>
>
> In our day and age it seems that Common Sense is in short supply. If you don't have any Common Sense - get some Common Sense and use it. If you can't find any Common Sense, ask for help from somebody who has some Common Sense. Is Common Sense divine?
> _______________________________________________
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AC7AC

RE: OT: We're on Mars!! Worth the Science

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