Re: [Elecraft] K3 linking VFO A and B

[Don Wilhelm]

John and all,

You should consider the Firmware Release Notes as an update to the 
manual(s).


73,
Don W3FPR

On 1/23/2018 9:39 PM, VE3NFK wrote:

Thanks Don... missed that.

Might be helpful to have an updated K3 operators manual

73  John VE3NFK



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Re: [Elecraft] Array Solutions Lightning Arrestor

[Ken G Kopp]

UG-1185's have captive center pins.

73 !

Ken - K0PP

On Jan 23, 2018 15:28,  wrote:

Pin retraction may depend on your coax. I use a number of N connectors and I
have not seen this occur with Belden 8267 or with the various sizes of
Heliax at my station.

John KK9A


K9ZC wrote:

While N connectors do have some design and impedance advantages, some of us
that have lived in extremely cold climates... have seen the center pins pull
out of N connectors due to thermal contraction of the center conductor over
distance.  A UHF or DIN connector will usually not do that.


Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ

Owner - Operator
Big Signal Ranch - K9ZC
Staunton, Illinois

Owner - Operator
Villa Grand Piton - J68HZ
Soufriere, St. Lucia W.I.
Rent it: www.VillaGrandPiton.com
Like us on Facebook!

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Re: [Elecraft] Trouble configuring a K3, MicroHAM Microkeyer

[Joe Subich, W4TV]

The Windows Sound Control Panel and Windows Volume Mixer will
vary depending on the sound card(s) in your system, running
applications and user configuration.   The pictures in the
microKEYER II are illustrative only.

73,

   ... Joe, W4TV


On 1/23/2018 8:31 PM, Eric Rosenberg wrote:

Joe,

  


I've only ever used it with an Orion 565.

  


My concern is that the Windows sound "panels (volume mixer, playback
devices, recording devices) " do not show what the MK12 manual does in re:
devices, applications and the like.

  


73,

Eric W3DQ

  


Message: 7

Date: Tue, 23 Jan 2018 09:42:27 -0500

From: "Joe Subich, W4TV" 

To: elecraft@mailman.qth.net

Subject: Re: [Elecraft] Trouble configuring a K3, MicroHAM Microkeyer

 2 and N1MM+

Message-ID: 

Content-Type: text/plain; charset=utf-8; format=flowed

  

  


At the moment, CW works as expected, EXCEPT when I use the



footswitch.  When use it, the PTT1 light stays lit and the radio



goes into transmit won't get out of it -- you have to turn off the



rig. The PTT! light stays on after the rig's shut off. You have to



turn the MK2 on and off for the PTT1 LED to turn off.


  


Was the MK II previously used with an Icom transceiver?  Is the I

"ICVOX" jumper installed?   See: "Preparing MK II for use" in the

MK II Users Manual.

  


73,

  


  ... Joe, W4TV

  

  




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Re: [Elecraft] K3 linking VFO A and B

[VE3NFK]

Thanks Don... missed that.

Might be helpful to have an updated K3 operators manual

73  John VE3NFK



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Re: [Elecraft] K3 linking VFO A and B

[Ken K6MR]

You forgot to read the firmware release notes:

MCU 5.10 / DSP 2.83, 2-2-2015

* EASIER DIVERSITY RECEIVE SELECTION: A regular hold of SUB now goes 
directly into diversity receive, without first having to go through 
"LINK". This should benefit most users of the KRX3 sub receiver, since 
few use the VFO linking function. Those who do use VFO linking can still 
turn it on by setting CONFIG:VFO LNK to ON. This menu entry can be 
assigned to a programmable function switch for easy selection if 
desired, eliminating the need to bring up the menu.


Ken K6MR




On 23-Jan-18 18:01:24, "VE3NFK"  wrote:

Hi

Must be having a senior moment  - but while I have VFO  A and B linked
nicely on 80 - can't do it on 40..
instructions say
"Holding SUB  links the VFOs (whether the sub
receiver is on or off). The kHz decimal point of
VFO B flashes as a reminder. "

But the instant you press 'SUB' - it turns on without linking; and then 
any

further 'hold' turns on diversity.

What am I doing wrong?

Thanks  John VE3NFK



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Re: [Elecraft] K3 linking VFO A and B

[Don Wilhelm]

John,

You apparently missed the Firmware Release notes.
VFO Linking has been moved from the SUB button into a menu item.

There was a timing relationship on the SUB button - a long hold used to 
turn on Linking, but it was confusing to a number of operators so it was 
changed.


73,
Don W3FPR


On 1/23/2018 9:01 PM, VE3NFK wrote:

Hi

Must be having a senior moment  - but while I have VFO  A and B linked
nicely on 80 - can't do it on 40..
instructions say
"Holding SUB  links the VFOs (whether the sub
receiver is on or off). The kHz decimal point of
VFO B flashes as a reminder. "

But the instant you press 'SUB' - it turns on without linking; and then any
further 'hold' turns on diversity.

What am I doing wrong?

Thanks  John VE3NFK

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[Elecraft] K3 linking VFO A and B

[VE3NFK]

Hi

Must be having a senior moment  - but while I have VFO  A and B linked
nicely on 80 - can't do it on 40..
instructions say
"Holding SUB  links the VFOs (whether the sub
receiver is on or off). The kHz decimal point of
VFO B flashes as a reminder. "

But the instant you press 'SUB' - it turns on without linking; and then any
further 'hold' turns on diversity.

What am I doing wrong?

Thanks  John VE3NFK



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Re: [Elecraft] Array Solutions Lightning Arrestor

[Bob McGraw K4TAX]

Correct installation is usually the key.  The line must be supported no 
more than 12" from the connector and NEVER at any time by the connector, 
even during installation.   Also, line supports along all vertical and 
horizontal runs is a must.


73

Bob, K4TAX


On 1/23/2018 4:27 PM, j...@kk9a.com wrote:

Pin retraction may depend on your coax. I use a number of N connectors and I
have not seen this occur with Belden 8267 or with the various sizes of
Heliax at my station.

John KK9A


K9ZC wrote:

While N connectors do have some design and impedance advantages, some of us
that have lived in extremely cold climates... have seen the center pins pull
out of N connectors due to thermal contraction of the center conductor over
distance.  A UHF or DIN connector will usually not do that.


Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ

Owner - Operator
Big Signal Ranch - K9ZC
Staunton, Illinois

Owner - Operator
Villa Grand Piton - J68HZ
Soufriere, St. Lucia W.I.
Rent it: www.VillaGrandPiton.com
Like us on Facebook!

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Re: [Elecraft] Trouble configuring a K3, MicroHAM Microkeyer

[Eric Rosenberg]

Joe, 

 

I've only ever used it with an Orion 565. 

 

My concern is that the Windows sound "panels (volume mixer, playback
devices, recording devices) " do not show what the MK12 manual does in re:
devices, applications and the like. 

 

73,

Eric W3DQ

 

Message: 7

Date: Tue, 23 Jan 2018 09:42:27 -0500

From: "Joe Subich, W4TV" 

To: elecraft@mailman.qth.net

Subject: Re: [Elecraft] Trouble configuring a K3, MicroHAM Microkeyer

2 and N1MM+

Message-ID: 

Content-Type: text/plain; charset=utf-8; format=flowed

 

 

> At the moment, CW works as expected, EXCEPT when I use the 

> footswitch.  When use it, the PTT1 light stays lit and the radio 

> goes into transmit won't get out of it -- you have to turn off the 

> rig. The PTT! light stays on after the rig's shut off. You have to 

> turn the MK2 on and off for the PTT1 LED to turn off. 

 

Was the MK II previously used with an Icom transceiver?  Is the I

"ICVOX" jumper installed?   See: "Preparing MK II for use" in the

MK II Users Manual.

 

73,

 

 ... Joe, W4TV

 

 

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Re: [Elecraft] OT: 3Y0Z Bouvet Island DXoedition

[efortner]

That is correct, I did not make it clear they were operating maritime mobile 
(call sign 3G9A/MM) on 40 and 20 CW and ft-8 on 20.

De K4KAY

73

 

From: garyk9gs [mailto:garyk...@wi.rr.com] 
Sent: Tuesday, January 23, 2018 5:31 PM
To: efortner; 'ab2tc'; elecraft@mailman.qth.net
Subject: Re: [Elecraft] OT: 3Y0Z Bouvet Island DXoedition

 

The ship is not even half way to Bouvet.  The only activity by the group so far 
is 3G9A/MM from the ship.

 

 

 

73

-Gary K9GS 

 

 Original message 

From: efortner  

Date: 1/23/18 4:09 PM (GMT-06:00) 

To: 'ab2tc' , elecraft@mailman.qth.net 

Subject: Re: [Elecraft] OT: 3Y0Z Bouvet Island DXoedition 

 

It is spotted right now on the cluster. They are working cw on 20 and 40
meters and ft-8 on 14.074.
73 de Earl, K4KAY

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of ab2tc
Sent: Tuesday, January 23, 2018 4:07 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] OT: 3Y0Z Bouvet Island DXoedition

Hi Elecraft community,

This is of course OT but relevant information to all K3 owners who are
chasing DX.

They are well underway on their ship closing in on South Georgia Island. You
can trace the ship's course here:

https://share.garmin.com/bouvet

It takes a while to update, but it will. I find it humorous that their
elevation reported appears to change randomly between 100' under water to
more than 100' above. Their main web site is quite impressive but not very
up to date and is not interactive, here:

http://www.bouvetdx.org/

All the action seems to be on Facebook. On their web site there is a link to
their Facebook group in the upper right corner. You can browse all the
content without having a Facebook account. There are a number of nice
videos, mostly from their ship's departure from Punta Arenas. The ship looks
super modern with a ultra modern and high tech bridge.

Again, I apologize to those who are annoyed by OT postings, but this is
after all the DX expedition of this century (likely the most costly in
history) and I have been surprised about how low profile it has had on the
Internet. They are qrv /MM (but their activity seems to mostly CW on 40m. I
have yet to see a spot on the cluster. BTW, Bouvet Island is a Norwegian
possession (undisputed as far as I know) and the crew has two veteran
members, Erling and Just.

AB2TC - Knut



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Re: [Elecraft] K3 Power Reading/SWR/ALC Problem

[Karin Johnson]

Paul:
I had a problem with my K2 with the same identical symptoms you are
describing.

The fault was diagnosed to an intermittent ground/shield connection in the
RF output

Cable going to my amplifier.  It was an old cable that was out in the
weather and when 

I took it apart you could see the corrosion in the PL259 inside the holes
for grounding.

This cable worked for me for several years but recently failed.  

Bring some extra jumper coax with you.

 

Karin Anne Johnson   P.E.  K3UU

Palm Harbor, FL



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Re: [Elecraft] K1 and K2 RIP?

[Eric Swartz - WA6HHQ, Elecraft]

The K2 is absolutely still in production :-)  Reports of its death are not 
accurate.

73,

Eric
/elecraft.com/

On 1/23/2018 1:22 PM, eric norris via Elecraft wrote:

I just called Elecraft looking for some parts for my spare K1 and K2 and was 
told they are out of production.  They are still listed on the order page.
If true, I am very sorry to see them go.  Building my K2 was one of the best 
experiences of my life.  Thank you, Elecraft.
73. Eric WD6DBMOwner, The Last KX1

Sent from Yahoo Mail on Android
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Re: [Elecraft] UHF connectors [was: Array Solutions Lightning Arrestor]

[Ron D'Eau Claire]

It's important to remember that when the "UHF" (239 series) connectors were
developed, UHF meant 28 MHz! Almost no work was being done at over 100 MHz
and the FCC did not even care what one did over 300 MHz: My 1941 ARRL
handbook shows that Hams could do whatever they wanted at such absurdly high
frequencies, nor does the handbook show how to produce RF above the 112 MHz
band (112 became 144 MHz when the FCC reorganized the early TV channel
allocations.)  

That changed very quickly during WWII. Wars do have a habit of spurring
technological development. But the name "UHF" stuck with the SO and PL 239
connectors. As Alan points out, they are quite useful up into what we call
VHF and possibly low UHF today.  

73, Ron AC7AC 

 

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Alan
Sent: Tuesday, January 23, 2018 3:18 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] UHF connectors [was: Array Solutions Lightning Arrestor]

On 01/23/2018 11:05 AM, Jim Brown wrote:
> On 1/23/2018 10:29 AM, Walter Underwood wrote:
...
>> But I mostly like them better because they are engineered instead of 
>> a historical accident.:-)
> 
> The technical superiority of N-connectors for use at HF is a wild 
> exaggeration, to the extent of being an urban myth. Yes, there is a 
> SMALL impedance difference at a junction, but it simply doesn't matter 
> at 6M and below, both because the difference in Zo is relatively 
> small, because the length is small as a fraction of a wavelength, and 
> because as frequency increases, small mismatches are reduced by the 
> loss in the feedline (and NOT loss due to mismatch).
> 
> There is, of course, a FICTIONAL loss called "mismatch loss," which 
> shows up in the lab with test equipment that is carefully engineered 
> to have 50 ohm output Z.  ...
Yup.  Here is a posting I made 25 years ago that has actual data:


From: ... (Alan Bloom)

Date: Fri, 18 Sep 1992 23:03:13 GMT

Subject: The Truth about UHF Connectors

Organization: Hewlett-Packard, Santa Rosa, CA

Newsgroups: rec.radio.amateur.misc



Ya gotta feel sorry for UHF connectors. Recent strings on this notes

group lambasted them as worthless at VHF and above, and barely tolerable

at HF. One poster called them "5 dB attenuators", and many agreed that

there must be some sort of conspiracy among ham equipment manufacturers

to inflict such garbage connectors on the amateur community.



Today I finally remembered to bring some UHF adapters from home so I

could do some relative measurements of UHF versus type-N.  As expected,

the type-N showed lower insertion loss at high frequencies, but the UHF

connectors were hardly "5 dB attenuators."



For the test I connected an HP8753 RF network analyzer through two short

BNC cables into the following arrangement:

_________

   |   |  | BNC female |  | N female- |  | N male to  |  |   |

__| 10 dB |__| to N male  |__| N female  |__| BNC female |__| 10 dB |__

   | Atten.|  | adapter|  | adapter   |  | adapter|  | Atten.|

   |___|  ||  |___|  ||  |___|



Then I repeated the measurement with the N adapters replaced with UHF.

I normalized the measurements by replacing the 3 adapters with a BNC

double-female. (That is, this was assumed to have 0 dB loss.)



Since two N or UHF adapters were used, I assume the loss per connector

is half the total. The vertical scale was .1 dB/division, so I estimated

the insertion loss to the nearest .01 dB or so:



 - Type N    -- UHF --

FREQ (MHz)  TOTAL  LOSS PER CONNECTOR   TOTAL  LOSS PER CONNECTOR

1.8 0 dB   0 dB 0 dB   0 dB

30  0  00  0

100 0  00  0

150 0  00.02   0.01

200 0  00.03   0.015

450 0  00.18   0.09

600 0  00.26   0.13

900 0  00.66   0.33

10000.05   0.0250.80.4

13000.10.05 0.86   0.43

16000.05   0.0250.50.25

20000.05   0.0250.02   0.01



Insertion loss increases until about 1300 MHz, and then starts to

decrease until it is almost zero for the UHF connector at 2 GHz!  At

that frequency, the connectors are about 1/4 wave long (1 inch,

assuming .66 velocity factor), so I assume that the two adapters are

providing a conjugate match to each other. This confirms my assumption

that the insertion loss is due to reflections (impedance mismatch), not

absorption (true power loss).



Bottom line: UHF connectors work fine through the VHF range, and are not

too bad even on the 420 MHz band if you can stand about .1 dB mismatch

loss per 

Re: [Elecraft] Array Solutions Lightning Arrestor

[Don Wilhelm]

I is not always thermal related.  Center pin retraction can also be 
caused by stress on the coax.  I have seen many N male connectors where 
the shield has slipped in the clamp due to tension on the coax (from the 
weight of hanging or perhaps other causes).  I routinely do 2 things - 
1) put a bead of silicone seal around the coax to top of the N connector 
junction, and 2) support the coax in some manner about 12 inches from 
the connector.


If the shield slips in the connector body, the most obvious result is 
center pin retraction, but it may also be that the shield has broken (or 
hanging on by a thread) allowing the coax to come partially out of the 
connector.


The same problem can be found in BNC connectors.

In other words, do not let the connector take the stress of the hanging 
coax weight.


Well soldered UHF connectors do not have that problem.

73,
Don W3FPR

On 1/23/2018 5:27 PM, j...@kk9a.com wrote:

Pin retraction may depend on your coax. I use a number of N connectors and I
have not seen this occur with Belden 8267 or with the various sizes of
Heliax at my station.

John KK9A


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Re: [Elecraft] K1 and K2 RIP?

[Don Wilhelm]

Eric,

The K2 is still current production, but the K1 is no longer available, 
as is the KX1.


Parts should still be available, although part number substitutes may 
have to be used in some cases - in the case of the K2, all parts are 
still available except for those that have been superceded by the 
current parts.  I order parts regularly.


If you send me a list of what you need, perhaps I can help.

73,
Don W3FPR

On 1/23/2018 4:22 PM, eric norris via Elecraft wrote:

I just called Elecraft looking for some parts for my spare K1 and K2 and was 
told they are out of production.  They are still listed on the order page.
If true, I am very sorry to see them go.  Building my K2 was one of the best 
experiences of my life.  Thank you, Elecraft.
73. Eric WD6DBMOwner, The Last KX1

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[Elecraft] UHF connectors [was: Array Solutions Lightning Arrestor]

[Alan]

On 01/23/2018 11:05 AM, Jim Brown wrote:

On 1/23/2018 10:29 AM, Walter Underwood wrote:

...
But I mostly like them better because they are engineered instead of a 
historical accident.:-)


The technical superiority of N-connectors for use at HF is a wild 
exaggeration, to the extent of being an urban myth. Yes, there is a 
SMALL impedance difference at a junction, but it simply doesn't matter 
at 6M and below, both because the difference in Zo is relatively small, 
because the length is small as a fraction of a wavelength, and because 
as frequency increases, small mismatches are reduced by the loss in the 
feedline (and NOT loss due to mismatch).


There is, of course, a FICTIONAL loss called "mismatch loss," which 
shows up in the lab with test equipment that is carefully engineered to 
have 50 ohm output Z.  ...

Yup.  Here is a posting I made 25 years ago that has actual data:


From: ... (Alan Bloom)

Date: Fri, 18 Sep 1992 23:03:13 GMT

Subject: The Truth about UHF Connectors

Organization: Hewlett-Packard, Santa Rosa, CA

Newsgroups: rec.radio.amateur.misc



Ya gotta feel sorry for UHF connectors. Recent strings on this notes

group lambasted them as worthless at VHF and above, and barely tolerable

at HF. One poster called them "5 dB attenuators", and many agreed that

there must be some sort of conspiracy among ham equipment manufacturers

to inflict such garbage connectors on the amateur community.



Today I finally remembered to bring some UHF adapters from home so I

could do some relative measurements of UHF versus type-N.  As expected,

the type-N showed lower insertion loss at high frequencies, but the UHF

connectors were hardly "5 dB attenuators."



For the test I connected an HP8753 RF network analyzer through two short

BNC cables into the following arrangement:

   _________

  |   |  | BNC female |  | N female- |  | N male to  |  |   |

__| 10 dB |__| to N male  |__| N female  |__| BNC female |__| 10 dB |__

  | Atten.|  | adapter|  | adapter   |  | adapter|  | Atten.|

  |___|  ||  |___|  ||  |___|



Then I repeated the measurement with the N adapters replaced with UHF.

I normalized the measurements by replacing the 3 adapters with a BNC

double-female. (That is, this was assumed to have 0 dB loss.)



Since two N or UHF adapters were used, I assume the loss per connector

is half the total. The vertical scale was .1 dB/division, so I estimated

the insertion loss to the nearest .01 dB or so:



- Type N    -- UHF --

FREQ (MHz)  TOTAL  LOSS PER CONNECTOR   TOTAL  LOSS PER CONNECTOR

1.8 0 dB   0 dB 0 dB   0 dB

30  0  00  0

100 0  00  0

150 0  00.02   0.01

200 0  00.03   0.015

450 0  00.18   0.09

600 0  00.26   0.13

900 0  00.66   0.33

10000.05   0.0250.80.4

13000.10.05 0.86   0.43

16000.05   0.0250.50.25

20000.05   0.0250.02   0.01



Insertion loss increases until about 1300 MHz, and then starts to

decrease until it is almost zero for the UHF connector at 2 GHz!  At

that frequency, the connectors are about 1/4 wave long (1 inch,

assuming .66 velocity factor), so I assume that the two adapters are

providing a conjugate match to each other. This confirms my assumption

that the insertion loss is due to reflections (impedance mismatch), not

absorption (true power loss).



Bottom line: UHF connectors work fine through the VHF range, and are not

too bad even on the 420 MHz band if you can stand about .1 dB mismatch

loss per connector.



By the way, I did not do the full 2-port calibration on the HP8753, so

there was a couple hundredth's dB ripple in the plots. I averaged this

out by eye to come up with the numbers in the above chart.



AL N1AL



P.S. Sorry, I guess I violated the Usenet rule against posting objective

data... :=)
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Re: [Elecraft] Array Solutions Lightning Arrestor

[Josh]

N are easier to install than UHF (IMHO), easier to tell that they're installed 
correctly, and it's difficult to find good quality UHF in larger dia for RG214. 
UHF for Heliax are very expensive while surplus NOS N-connectors are common. 

That's why I prefer them. I would say UHF offer no advantages over N !

73,
Josh W6XU

Sent from my mobile device

> On Jan 23, 2018, at 10:15 AM, Jim Brown  wrote:
> 
>> On 1/23/2018 9:40 AM, Walter Underwood wrote:
>> And Morgan Manufacturing offers them with N connectors! I’m sold.
> 
> So does Array Solutions. BUT -- for HF, N connections offer no advantages 
> over UHF connectors.
> 
> 73, Jim K9YC
> 
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Re: [Elecraft] OT: 3Y0Z Bouvet Island DXoedition

[garyk9gs]

The ship is not even half way to Bouvet.  The only activity by the group so far 
is 3G9A/MM from the ship.


73-Gary K9GS 
 Original message From: efortner  Date: 
1/23/18  4:09 PM  (GMT-06:00) To: 'ab2tc' , 
elecraft@mailman.qth.net Subject: Re: [Elecraft] OT: 3Y0Z Bouvet Island 
DXoedition 
It is spotted right now on the cluster. They are working cw on 20 and 40
meters and ft-8 on 14.074.
73 de Earl, K4KAY

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of ab2tc
Sent: Tuesday, January 23, 2018 4:07 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] OT: 3Y0Z Bouvet Island DXoedition

Hi Elecraft community,

This is of course OT but relevant information to all K3 owners who are
chasing DX.

They are well underway on their ship closing in on South Georgia Island. You
can trace the ship's course here:

https://share.garmin.com/bouvet

It takes a while to update, but it will. I find it humorous that their
elevation reported appears to change randomly between 100' under water to
more than 100' above. Their main web site is quite impressive but not very
up to date and is not interactive, here:

http://www.bouvetdx.org/

All the action seems to be on Facebook. On their web site there is a link to
their Facebook group in the upper right corner. You can browse all the
content without having a Facebook account. There are a number of nice
videos, mostly from their ship's departure from Punta Arenas. The ship looks
super modern with a ultra modern and high tech bridge.

Again, I apologize to those who are annoyed by OT postings, but this is
after all the DX expedition of this century (likely the most costly in
history) and I have been surprised about how low profile it has had on the
Internet. They are qrv /MM (but their activity seems to mostly CW on 40m. I
have yet to see a spot on the cluster. BTW, Bouvet Island is a Norwegian
possession (undisputed as far as I know) and the crew has two veteran
members, Erling and Just.

AB2TC - Knut



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Re: [Elecraft] K1 and K2 RIP?

[K2bew]

The K1 was discontinued a while ago, I just bought a k2 over the summer
after the K1 was discontinued out of concern the K2 might be next, this is
the first I have heard the k2 was discontinued however.
Hope not,  it’s the only one on the market like it that you can build
yourself, we can only hope that perhaps they will come out with new kit
radio.
73 Tom, k2bew

On Tue, Jan 23, 2018 at 16:23 eric norris via Elecraft <
elecraft@mailman.qth.net> wrote:

> I just called Elecraft looking for some parts for my spare K1 and K2 and
> was told they are out of production.  They are still listed on the order
> page.
> If true, I am very sorry to see them go.  Building my K2 was one of the
> best experiences of my life.  Thank you, Elecraft.
> 73. Eric WD6DBMOwner, The Last KX1
>
> Sent from Yahoo Mail on Android
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-- 
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Re: [Elecraft] Array Solutions Lightning Arrestor

[john]

Pin retraction may depend on your coax. I use a number of N connectors and I
have not seen this occur with Belden 8267 or with the various sizes of
Heliax at my station.

John KK9A


K9ZC wrote:

While N connectors do have some design and impedance advantages, some of us
that have lived in extremely cold climates... have seen the center pins pull
out of N connectors due to thermal contraction of the center conductor over
distance.  A UHF or DIN connector will usually not do that.


Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ 

Owner - Operator
Big Signal Ranch - K9ZC
Staunton, Illinois

Owner - Operator
Villa Grand Piton - J68HZ
Soufriere, St. Lucia W.I.
Rent it: www.VillaGrandPiton.com
Like us on Facebook!

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Re: [Elecraft] OT: 3Y0Z Bouvet Island DXoedition

[efortner]

It is spotted right now on the cluster. They are working cw on 20 and 40
meters and ft-8 on 14.074.
73 de Earl, K4KAY

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of ab2tc
Sent: Tuesday, January 23, 2018 4:07 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] OT: 3Y0Z Bouvet Island DXoedition

Hi Elecraft community,

This is of course OT but relevant information to all K3 owners who are
chasing DX.

They are well underway on their ship closing in on South Georgia Island. You
can trace the ship's course here:

https://share.garmin.com/bouvet

It takes a while to update, but it will. I find it humorous that their
elevation reported appears to change randomly between 100' under water to
more than 100' above. Their main web site is quite impressive but not very
up to date and is not interactive, here:

http://www.bouvetdx.org/

All the action seems to be on Facebook. On their web site there is a link to
their Facebook group in the upper right corner. You can browse all the
content without having a Facebook account. There are a number of nice
videos, mostly from their ship's departure from Punta Arenas. The ship looks
super modern with a ultra modern and high tech bridge.

Again, I apologize to those who are annoyed by OT postings, but this is
after all the DX expedition of this century (likely the most costly in
history) and I have been surprised about how low profile it has had on the
Internet. They are qrv /MM (but their activity seems to mostly CW on 40m. I
have yet to see a spot on the cluster. BTW, Bouvet Island is a Norwegian
possession (undisputed as far as I know) and the crew has two veteran
members, Erling and Just.

AB2TC - Knut



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[Elecraft] K1 and K2 RIP?

[eric norris via Elecraft]

I just called Elecraft looking for some parts for my spare K1 and K2 and was 
told they are out of production.  They are still listed on the order page.
If true, I am very sorry to see them go.  Building my K2 was one of the best 
experiences of my life.  Thank you, Elecraft.
73. Eric WD6DBMOwner, The Last KX1

Sent from Yahoo Mail on Android
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[Elecraft] OT: 3Y0Z Bouvet Island DXoedition

[ab2tc]

Hi Elecraft community,

This is of course OT but relevant information to all K3 owners who are
chasing DX.

They are well underway on their ship closing in on South Georgia Island. You
can trace the ship's course here:

https://share.garmin.com/bouvet

It takes a while to update, but it will. I find it humorous that their
elevation reported appears to change randomly between 100' under water to
more than 100' above. Their main web site is quite impressive but not very
up to date and is not interactive, here:

http://www.bouvetdx.org/

All the action seems to be on Facebook. On their web site there is a link to
their Facebook group in the upper right corner. You can browse all the
content without having a Facebook account. There are a number of nice
videos, mostly from their ship's departure from Punta Arenas. The ship looks
super modern with a ultra modern and high tech bridge.

Again, I apologize to those who are annoyed by OT postings, but this is
after all the DX expedition of this century (likely the most costly in
history) and I have been surprised about how low profile it has had on the
Internet. They are qrv /MM (but their activity seems to mostly CW on 40m. I
have yet to see a spot on the cluster. BTW, Bouvet Island is a Norwegian
possession (undisputed as far as I know) and the crew has two veteran
members, Erling and Just.

AB2TC - Knut



--
Sent from: http://elecraft.365791.n2.nabble.com/
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Re: [Elecraft] Array Solutions Lightning Arrestor

[Walter Underwood]

I’m not trying to convince anyone else to use N-type connectors. I’m just happy 
they are available.

wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)

> On Jan 23, 2018, at 11:05 AM, Jim Brown  wrote:
> 
> On 1/23/2018 10:29 AM, Walter Underwood wrote:
>> N connectors have better weatherproofing.
> 
> How does that matter for connections inside a weatherproof enclosure that 
> mounts the arrestors?  They also have the problem of cable migration from the 
> connector.
> 
>> They handle 1500 V instead of 500 V.
> 
> In 60 years of hamming, I've never seen a quality UHF connector that arced. 
> Of course, I've never run more than 1.5kW, and I try to use antennas that are 
> close to resonance.  :)
> 
>> But I mostly like them better because they are engineered instead of a 
>> historical accident.:-)
> 
> The technical superiority of N-connectors for use at HF is a wild 
> exaggeration, to the extent of being an urban myth. Yes, there is a SMALL 
> impedance difference at a junction, but it simply doesn't matter at 6M and 
> below, both because the difference in Zo is relatively small, because the 
> length is small as a fraction of a wavelength, and because as frequency 
> increases, small mismatches are reduced by the loss in the feedline (and NOT 
> loss due to mismatch).
> 
> There is, of course, a FICTIONAL loss called "mismatch loss," which shows up 
> in the lab with test equipment that is carefully engineered to have 50 ohm 
> output Z. But the output Z of real world transmitters is rarely 50 ohms -- 
> it's usually a lot lower.  Funny -- because it isn't real, we didn't learn 
> about it in our transmission lines classes back in the '60s.
> 
> What matters a lot more is the QUALITY of the connector. Smart hams don't use 
> el-cheapo, non-branded connectors. Except for receive antennas, I use only 
> soldered Amphenol 83-1SP connectors and mating Amphenol jacks and Amphenol 
> adapters.
> 
> 73, Jim K9YC
> 
> 
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Re: [Elecraft] Array Solutions Lightning Arrestor

[Jim Brown]

On 1/23/2018 10:29 AM, Walter Underwood wrote:

N connectors have better weatherproofing.


How does that matter for connections inside a weatherproof enclosure 
that mounts the arrestors?  They also have the problem of cable 
migration from the connector.



They handle 1500 V instead of 500 V.


In 60 years of hamming, I've never seen a quality UHF connector that 
arced. Of course, I've never run more than 1.5kW, and I try to use 
antennas that are close to resonance.  :)



But I mostly like them better because they are engineered instead of a 
historical accident.:-)


The technical superiority of N-connectors for use at HF is a wild 
exaggeration, to the extent of being an urban myth. Yes, there is a 
SMALL impedance difference at a junction, but it simply doesn't matter 
at 6M and below, both because the difference in Zo is relatively small, 
because the length is small as a fraction of a wavelength, and because 
as frequency increases, small mismatches are reduced by the loss in the 
feedline (and NOT loss due to mismatch).


There is, of course, a FICTIONAL loss called "mismatch loss," which 
shows up in the lab with test equipment that is carefully engineered to 
have 50 ohm output Z. But the output Z of real world transmitters is 
rarely 50 ohms -- it's usually a lot lower.  Funny -- because it isn't 
real, we didn't learn about it in our transmission lines classes back in 
the '60s.


What matters a lot more is the QUALITY of the connector. Smart hams 
don't use el-cheapo, non-branded connectors. Except for receive 
antennas, I use only soldered Amphenol 83-1SP connectors and mating 
Amphenol jacks and Amphenol adapters.


73, Jim K9YC


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Re: [Elecraft] Array Solutions Lightning Arrestor

[Dr. William J. Schmidt, II]

While N connectors do have some design and impedance advantages, some of us 
that have lived in extremely cold climates... have seen the center pins pull 
out of N connectors due to thermal contraction of the center conductor over 
distance.  A UHF or DIN connector will usually not do that.


Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ 

Owner - Operator
Big Signal Ranch – K9ZC
Staunton, Illinois

Owner – Operator
Villa Grand Piton – J68HZ
Soufriere, St. Lucia W.I.
Rent it: www.VillaGrandPiton.com
Like us on Facebook! 


email:  b...@wjschmidt.com


-Original Message-
From: elecraft-boun...@mailman.qth.net 
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Walter Underwood
Sent: Tuesday, January 23, 2018 2:29 PM
To: Reflector Elecraft 
Subject: Re: [Elecraft] Array Solutions Lightning Arrestor

N connectors have better weatherproofing. They handle 1500 V instead of 500 V. 
But I mostly like them better because they are engineered instead of a 
historical accident. :-)

wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)

> On Jan 23, 2018, at 10:15 AM, Jim Brown  wrote:
> 
> On 1/23/2018 9:40 AM, Walter Underwood wrote:
>> And Morgan Manufacturing offers them with N connectors! I’m sold.
> 
> So does Array Solutions. BUT -- for HF, N connections offer no advantages 
> over UHF connectors.
> 
> 73, Jim K9YC
> 
> __
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Re: [Elecraft] Array Solutions Lightning Arrestor

[Walter Underwood]

N connectors have better weatherproofing. They handle 1500 V instead of 500 V. 
But I mostly like them better because they are engineered instead of a 
historical accident. :-)

wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)

> On Jan 23, 2018, at 10:15 AM, Jim Brown  wrote:
> 
> On 1/23/2018 9:40 AM, Walter Underwood wrote:
>> And Morgan Manufacturing offers them with N connectors! I’m sold.
> 
> So does Array Solutions. BUT -- for HF, N connections offer no advantages 
> over UHF connectors.
> 
> 73, Jim K9YC
> 
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Re: [Elecraft] Array Solutions Lightning Arrestor

[Jim Brown]

On 1/23/2018 9:40 AM, Walter Underwood wrote:

And Morgan Manufacturing offers them with N connectors! I’m sold.


So does Array Solutions. BUT -- for HF, N connections offer no 
advantages over UHF connectors.


73, Jim K9YC

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Re: [Elecraft] Array Solutions Lightning Arrestor

[Walter Underwood]

And Morgan Manufacturing offers them with N connectors! I’m sold.

Thanks for the info.

wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)

> On Jan 23, 2018, at 9:35 AM, Jim N7US  wrote:
> 
> Morgan Manufacturing, which, I've heard, was the contract assembly company 
> for ICE, is also selling some of ICE's product line.
> 
> http://www.morganmfg.us/ 
> 
> 73, Jim N7US
> 
> -Original Message-
> 
> 
> In my experience, they fail shorted, so it's pretty obvious.   Although the 
> app notes for both the ICE and Array Solutions products say that they don't 
> always fail shorted.
> 
> The design is based on this one, which Array Solutions used to sell, but the 
> ICE owner died several years ago. The circuit is shown in the link below.  
> The great thing about this circuit is that the inductor continuously 
> discharges static.
> 
> https://www.arraysolutions.com/as-303u
> 
> 73, Jim K9YC
> 
> On 1/22/2018 10:51 AM, j...@kk9a.com wrote:
> Until K9YC's post I was not aware of the Array Solutions lightning arrestor. 
> They appear be a nice product. How do GDT's fail - open or closed? If open, 
> how do you know that they need replacement?
> 
> John KK9A
> 
> K9YC wrote:
> 
> I strongly agree with Bob's advice, EXCEPT that I've gotten really tired of 
> replacing Polyphasers on my high wire dipoles. I've recently switched to the 
> arrestors that Array Solutions sells, both because I like the circuit better 
> and because the gas discharge tubes are user replaceable.
> 
> The Polyphasers are feed-through types mounted to the entry panel. The Array 
> Solutions are mounted in a big Hoffman box, for which W6GJB built some custom 
> mounting brackets. It's mounted to the wall next to the plate with the 
> Polyphasers, with two 2-in PVC conduit stubs going through the wall and holes 
> drilled at the bottom of the enclosure for coax entry.
> 
> 73, Jim K9YC
> 
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Re: [Elecraft] Array Solutions Lightning Arrestor

[Jim N7US]

Morgan Manufacturing, which, I've heard, was the contract assembly company for 
ICE, is also selling some of ICE's product line.

http://www.morganmfg.us/ 

73, Jim N7US

-Original Message-


In my experience, they fail shorted, so it's pretty obvious.   Although the app 
notes for both the ICE and Array Solutions products say that they don't always 
fail shorted.

The design is based on this one, which Array Solutions used to sell, but the 
ICE owner died several years ago. The circuit is shown in the link below.  The 
great thing about this circuit is that the inductor continuously discharges 
static.

https://www.arraysolutions.com/as-303u

73, Jim K9YC

On 1/22/2018 10:51 AM, j...@kk9a.com wrote:
Until K9YC's post I was not aware of the Array Solutions lightning arrestor. 
They appear be a nice product. How do GDT's fail - open or closed? If open, how 
do you know that they need replacement?

John KK9A

K9YC wrote:

I strongly agree with Bob's advice, EXCEPT that I've gotten really tired of 
replacing Polyphasers on my high wire dipoles. I've recently switched to the 
arrestors that Array Solutions sells, both because I like the circuit better 
and because the gas discharge tubes are user replaceable.

The Polyphasers are feed-through types mounted to the entry panel. The Array 
Solutions are mounted in a big Hoffman box, for which W6GJB built some custom 
mounting brackets. It's mounted to the wall next to the plate with the 
Polyphasers, with two 2-in PVC conduit stubs going through the wall and holes 
drilled at the bottom of the enclosure for coax entry.

73, Jim K9YC

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Re: [Elecraft] Trouble configuring a K3, MicroHAM Microkeyer 2 and N1MM+

[Joe Subich, W4TV]

At the moment, CW works as expected, EXCEPT when I use the 
footswitch.  When use it, the PTT1 light stays lit and the radio 
goes into transmit won't get out of it -- you have to turn off the 
rig. The PTT! light stays on after the rig's shut off. You have to 
turn the MK2 on and off for the PTT1 LED to turn off. 


Was the MK II previously used with an Icom transceiver?  Is the I
"ICVOX" jumper installed?   See: "Preparing MK II for use" in the
MK II Users Manual.

73,

... Joe, W4TV


On 1/23/2018 12:25 AM, Eric Rosenberg wrote:

I've been having issues getting my MK2 work with a new-to-me K3 and N1MM+

At the moment, CW works as expected, EXCEPT when I use the footswitch. When use 
it, the PTT1 light stays lit and the radio goes into transmit and won't get out 
of it  -- you have to turn off the rig. The PTT! light stays on after the rig's 
shut off.  You have to turn the MK2 on and off  for the PTT1 LED to turn off.

When in the phone (SSB) mode, I can key the radio and hear wav files (audio) 
out of the rig's speaker, but no audio is transmitted.  Likewise, I don't hear 
anything from the microphone.  The same scenario re-occurs with the footswitch 
as when in CW.

  


I originally had an issue of the radio keying and staying keyed when I plugged 
in the MK2’s PTT cable to the rig. That went away, but I'm not quite sure why 
or how.

  


And yes, I have RTFM and N1MM+ setup notes many times. I clearly could have 
missed something. Just what that may be, I do not know!

  


Thanks & 73,

Eric W3DQ

.

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[Elecraft] K3 Power Reading/SWR/ALC Problem

[Dauer, Edward]

I missed the original post that began this thread, so the following may or may 
not be relevant.  I gather the question is about voltage spikes on the antenna 
or feedline that damaged something nearer the transmitter end.  If that is so, 
I would ask the original submitter if they are using a remote antenna switch 
that couples the relay DC through the feedline.  If so, you might examine the 
switch to see if the proper diode protections are present on the remote relays. 
 Some time ago I had the PA transistors in a new K2 blown away three times, 
until Don Wilhelm put me onto an investigation in which I saw on a scope very 
high voltage short-time-rise spikes on the line when the relay coil fields 
collapsed, from an MFJ remote switch system that was sold before MFJ changed 
its design to include those protections.  Just a thought from a bad experience.

Ted. KN1CBR

--

Message: 6
Date: Sun, 21 Jan 2018 16:14:55 -0600
From: Bob McGraw K4TAX 
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3 Power Reading/SWR/ALC Problem
Message-ID: <9ff00d5b-d3ba-c49c-0293-c5d93e346...@blomand.net>
Content-Type: text/plain; charset=utf-8; format=flowed

 From experience, I'd say nearby lightning strikes would be the 
culprit.?? I strongly urge everyone to use protection devices on all 
coax and balanced lines at the point where the feed lines and rotor 
lines enter the house.? I prefer Polyphaser devices.?? Don't buy cheap 
or ham fest bargain table crap!? Your radio and your house depends on it.

I don't disconnect antennas nor do I ground antennas.? I protect for 
lightning outside and prefer to choose methods where it will not be 
allowed in the house.??? And I'm on a hill and have two towers? which 
are? 500 ft above average terrain out to some 35 miles.? I understand 
lightning and what it can do.? As to lightning, mitigation is the 
approach, elimination is not physically possible.

73

Bob, K4TAX


On 1/21/2018 3:42 PM, ab2tc wrote:
> Hi Don and all,
>
> I really don't understand why static build up on the antenna should be a
> problem with the K3. Due to the (good) design of the SWR bridge (a two
> transformer design with a voltage transformer right across the output) the
> antenna port presents a dead short circuit at DC both in receive and
> transmit. I just verified this with an ohm-meter (in receive only - no 
need
> to check in transmit since the SWR bridge is surely present then - don't
> want to kill my DMM).
>
> Maybe we are talking semantics here but it appears to me that the cause of
> diode damage in the SWR bridge circuit is more likely caused by transients
> induced into the antenna system by nearby lightning strikes than static
> buildup.
>
> Knut - AB2TC
>
>
 


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[Elecraft] OT - Microphones for the K2/K3

[Raymund Band]

I noted with interest on the Elecraft microphone descriptions
(http://www.elecraft.com/elecraft_mics.htm) that the Heil microphones have
been tested in an *anabolic* chamber!

Mikes on steroids?

Ray /SM5XLP

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[Elecraft] Elecraft Power Monitor for P3

[Dave Cole (NK7Z)]

Hello,

I have a new Elecraft P3 transmit power monitor, and it may have a 
problem...


After install I upgraded the firmware on the P3, etc.

When I transmit digital, sometimes it will show full power of 50 watts, 
with a SWR of 1.32:1, which matches my HF-AUTO, and my Ameritron AWM-30 
wattmeter.


The next time I transmit, it may show 20 watts, with a SWR of 1:1, while 
the Ameritron and the HF Auto show all normal at 50 watts, and 1.3ish:1. 
 The next time I transmit, it will show maybe 30 watts, and a 1:1, 
again, the Ameritron, and the HF-AUTO show 50 watts, and 1.3ish:1.


I thought it might just be signal changing due to  being digital, so I 
tried it on CW, same action, the P3 Transmit monitor is all over the 
place, and showing a 1:1 SWR when failed, but 1.34:1 when correct for power.


Next I thought it might be the on and off action from CW showing this... 
 I switched to AM, and with the K3 set at 100 watts, I see 25 watts 
out, and the same action on the P3, all over, while the other two watt 
meters and SWR meters are stable from transmit to transmit...


So thinking it still might be something in my cabling, I replaced all 
cables, and ran the output of the radio to the TX monitor, and the TX 
monitor to a Bird Watt meter, then the Bird to a dummy load...  Same 
thing, the Bird is rock stable, the P3 Transmit monitor seems to be all 
over.  The only thing consistent is that when I get a bad reading on the 
P3 Transmit monitor I am ALWAYS showing a 1:1 on the P3 Transmit monitor.


Just to be sure, I ran the transmit calibration on the K3, and that went 
perfectly well, and succeeded on all bands, at all power levels.  Same 
results with regards to teh P3 Power Level Monitor...


Any ideas?


73s and thanks,
Dave
NK7Z
http://www.nk7z.net
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Re: [Elecraft] Trouble configuring a K3, MicroHAM Microkeyer 2 and N1MM+

[Joe Subich, W4TV]

At the moment, CW works as expected, EXCEPT when I use the 
footswitch.  When use it, the PTT1 light stays lit and the radio

goes into transmit won't get out of it -- you have to turn off the
rig. The PTT! light stays on after the rig's shut off. You have to
turn the MK2 on and off for the PTT1 LED to turn off.

Was the MK II previously used with an Icom transceiver?  Is the I
"ICVOX" jumper installed?   See: "Preparing MK II for use" in the
MK II Users Manual.

73,

   ... Joe, W4TV


On 1/23/2018 12:25 AM, Eric Rosenberg wrote:

I've been having issues getting my MK2 work with a new-to-me K3 and N1MM+

At the moment, CW works as expected, EXCEPT when I use the footswitch. When use 
it, the PTT1 light stays lit and the radio goes into transmit and won't get out 
of it  -- you have to turn off the rig. The PTT! light stays on after the rig's 
shut off.  You have to turn the MK2 on and off  for the PTT1 LED to turn off.

When in the phone (SSB) mode, I can key the radio and hear wav files (audio) 
out of the rig's speaker, but no audio is transmitted.  Likewise, I don't hear 
anything from the microphone.  The same scenario re-occurs with the footswitch 
as when in CW.

  


I originally had an issue of the radio keying and staying keyed when I plugged 
in the MK2’s PTT cable to the rig. That went away, but I'm not quite sure why 
or how.

  


And yes, I have RTFM and N1MM+ setup notes many times. I clearly could have 
missed something. Just what that may be, I do not know!

  


Thanks & 73,

Eric W3DQ

.

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Re: [Elecraft] KX3 Feature Ask

[Edward R Cole]

Dave,

I bought my KX3 primarily for use as144-MHz mw IF.  I did some 
extensive freq measurements at 6m (before the 2m module was 
available).  I added an aftermarket heat sink and then ran the temp 
comp routine.  I simulated running JT65, which has continuous carrier 
for 50 seconds out of 2 minute sequences and found max drift was 
about 12-Hz.  That existed for the first two sequences and then drift 
dropped down to about 5-Hz (apparently residual heat held the offset 
for a longer time).


Since the 2m module utilizes a 55-MHz IF I would expect about the 
same performance.  Actually depends on power output and 2m max is 3w 
vs the 5w test I ran on 6m.  Seems 12-Hz variation on 10-GHz would 
not be troublesome if the mw LO was phase locked to a reference.  I 
have measured my 10-GHz LO to be about 17-Hz off frequency (no 
discernable drift) mainly due to frequency error in my OCXO on 10-MHz 
(which is multiplied to 10,224.000 MHz from 1,036 MHz).  I drive my 
DEMI 10G transverter at 1w on 144-MHz so drift would even be better.


So freq accuracy is < 17+12 Hz at 10,368 MHz.  Much better than the 
old Xosc system with the FT-817 which could be several KHz off freq.


I use an EIP538 mw freq counter which I check against a Rb source (5x E-11).

73, Ed - KL7UW

From: Dave AD6A 
To: Nr4c 
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] KX3 Feature Ask

A great little radio it is, agreed. I have two of them that I use as 
I.F. radios on my 10 & 24GHz portable microwave station setups. They 
are perfect for that function, using the 2m option as the I.F. 
especially when mated with a PX3. I drag my microwave gear all over 
the place, including mountain tops. I phase lock my microwave 
transverters to a GPS disciplined 10MHz OCXO and would simply like to 
be able to do the same with the I.F. radio so that I know exactly 
what frequency I'm on, especially when looking for exceedingly weak 
transmissions. I know for sure there are many of us microwavers that 
do the same thing.


FWIW I have a fully loaded K3s in my home station that's also locked 
to a GPS standard, as is all my RF test equipment.


Regards,
Dave AD6A


73, Ed - KL7UW
  http://www.kl7uw.com
Dubus-NA Business mail:
  dubus...@gmail.com 


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