Date   

Re: AFRL

Brian Mileshosky
 


Keith —

Are you referring to this?


Brian N5ZGT 

On Dec 22, 2020, at 08:18, Keith Morehouse <w9rm@...> wrote:


Jim, I read about this in one of the various NASA/SAE pubs I get.  The brief goes into more detail, but, basically, there is (or was) a project running at AFRL NM that uses a novel method of real-time sporadic E detection involving broadband noise from the national power grid.  It appears they have (or had..) a pretty extensive detector network down there somewhere and, when reading between the lines of the brief, it appears someone involved probably has a amateur license.

I was curious if the data generated from the detector array was available.

-W9RM

Keith Morehouse
via MotoG

On Mon, Dec 21, 2020, 6:13 PM JamesDuffey <jamesduffey@...> wrote:
I used to do some contract work for parts of AFRL, but that was three years ago. Let me know what the project is and I will let you know if I know anything about it.

James Duffey KK6MC
Cedar Crest NM

On Dec 21, 2020, at 18:03, Keith Morehouse <w9rm@...> wrote:


Does anybody on the list work at AFRL ?  I have a question about a research project (that's been made public..) that might be of interest to VHFers.

Feel free to contact me direct at w9rm@... if you feel more comfortable.

-W9RM

Keith Morehouse
via MotoG


Re: AFRL

Keith Morehouse
 

Jim, I read about this in one of the various NASA/SAE pubs I get.  The brief goes into more detail, but, basically, there is (or was) a project running at AFRL NM that uses a novel method of real-time sporadic E detection involving broadband noise from the national power grid.  It appears they have (or had..) a pretty extensive detector network down there somewhere and, when reading between the lines of the brief, it appears someone involved probably has a amateur license.

I was curious if the data generated from the detector array was available.

-W9RM

Keith Morehouse
via MotoG


On Mon, Dec 21, 2020, 6:13 PM JamesDuffey <jamesduffey@...> wrote:
I used to do some contract work for parts of AFRL, but that was three years ago. Let me know what the project is and I will let you know if I know anything about it.

James Duffey KK6MC
Cedar Crest NM

On Dec 21, 2020, at 18:03, Keith Morehouse <w9rm@...> wrote:


Does anybody on the list work at AFRL ?  I have a question about a research project (that's been made public..) that might be of interest to VHFers.

Feel free to contact me direct at w9rm@... if you feel more comfortable.

-W9RM

Keith Morehouse
via MotoG


Re: AFRL

James Duffey
 

I used to do some contract work for parts of AFRL, but that was three years ago. Let me know what the project is and I will let you know if I know anything about it.

James Duffey KK6MC
Cedar Crest NM

On Dec 21, 2020, at 18:03, Keith Morehouse <w9rm@...> wrote:


Does anybody on the list work at AFRL ?  I have a question about a research project (that's been made public..) that might be of interest to VHFers.

Feel free to contact me direct at w9rm@... if you feel more comfortable.

-W9RM

Keith Morehouse
via MotoG


AFRL

Keith Morehouse
 

Does anybody on the list work at AFRL ?  I have a question about a research project (that's been made public..) that might be of interest to VHFers.

Feel free to contact me direct at w9rm@... if you feel more comfortable.

-W9RM

Keith Morehouse
via MotoG


Re: 432 amplifier for sale

John Stanford
 

Hi Keith

I’m interested. 

Have an Alpha 76 for a supply.

Interested in other cavity and spare 8874s. 

Would have to ship but I’ve got a Fed Ex account. Just need weight and dimensions. 

John

On Sun, Dec 20, 2020 at 10:55 AM Keith Morehouse <w9rm@...> wrote:
I have a 432 cavity amplifier that is ready to go. It's tuned, proven and has QSOs on it. It's a single Eimac 8874 in a Varian cavity and will do 475W out with about 20W of drive.  This is a linear amp, not Class C FM.

The catch is it does not have a high voltage (or filament) supply. I used the supply from an old HF amplifier which ran two of the same tubes and simply hard wired the HV, filament, bias and control to the cavity amp. Any power supply running in the 2000-2500V range and capable of, say, 500 mA would do fine. No T/R relay is included, but a super low loss LP filter is. I have a spare cavity that could be included to sweeten the deal.

It's a 'project' for sure, but an inexpensive way to generate decent smash on 432. The whole thing could be yours for $300. I have extra 8874's also, which are a negotiable part of the deal. I guess it's shippable, but I'd rather not.

-W9RM

Keith Morehouse
via MotoG

--
John Stanford, KF6I
Island Amplifier USA


432 amplifier for sale

Keith Morehouse
 

I have a 432 cavity amplifier that is ready to go. It's tuned, proven and has QSOs on it. It's a single Eimac 8874 in a Varian cavity and will do 475W out with about 20W of drive.  This is a linear amp, not Class C FM.

The catch is it does not have a high voltage (or filament) supply. I used the supply from an old HF amplifier which ran two of the same tubes and simply hard wired the HV, filament, bias and control to the cavity amp. Any power supply running in the 2000-2500V range and capable of, say, 500 mA would do fine. No T/R relay is included, but a super low loss LP filter is. I have a spare cavity that could be included to sweeten the deal.

It's a 'project' for sure, but an inexpensive way to generate decent smash on 432. The whole thing could be yours for $300. I have extra 8874's also, which are a negotiable part of the deal. I guess it's shippable, but I'd rather not.

-W9RM

Keith Morehouse
via MotoG


ABQ-Ham email reflector

Brian Mileshosky
 

Greetings —

For anyone interested, I created an email reflector called “ABQ-Ham” on groups.io.  This reflector will replace the existing one on Yahoogroups which will down on December 15 when Yahoo shuts all of their groups down.

The purpose of the ABQ-Ham email reflector is to facilitate the exchange of general information about amateur radio topics, operations, and events in and around Albuquerque, New Mexico.  All hams, new and experienced, are invited to subscribe.  The list is not affiliated with any amateur radio club or group, however hams are free to promote events related to their amateur radio club or event.

If you would like to join the new ABQ-Ham reflector, visit and follow the instructions at https://groups.io/g/ABQ-Ham or simply send a blank email to ABQ-Ham+subscribe@groups.io

Merry Christmas and happy holidays!

73,
Brian N5ZGT


Re: june VHF results

John Klem
 

I will be roving somewhere, but avoiding hotels and tents this time will limit my operating time and range.

John, AA5PR

On 12/9/2020 8:46 AM, Keith Morehouse wrote:
Nice to work you during phone SS, Bruce.

Now, who's going to be on for January VHF ??

-W9RM

Keith Morehouse
via MotoG

On Wed, Dec 9, 2020, 8:12 AM Bruce Draper <bruceaa5b@...> wrote:
Haven't seen this mentioned here yet. The results for the 2020 ARRL June VHF Contest are in December's QST, and several NMVHF folks won their categories in the Rocky Mountain Division:

AA5PR                Limited Rover
W9RM                 Single-Op High Power
AI5I                      Single-Op Low Power
AA5B (+KK6MC)  Limited Multi-Op

Congratulations!



Re: june VHF results

Tom
 

Hey Guys,,
Congrats from One VHFer to another!!
Hope to work some on msk in Jan test!!
Have a safe Holiday,,,
Cu in the NEW YEAR!!
Tom
N7GP
ex WA8WZG

On 2020-12-09 15:46, Keith Morehouse wrote:
Nice to work you during phone SS, Bruce.
Now, who's going to be on for January VHF ??
-W9RM
Keith Morehouse
via MotoG
On Wed, Dec 9, 2020, 8:12 AM Bruce Draper <bruceaa5b@gmail.com> wrote:

Haven't seen this mentioned here yet. The results for the 2020 ARRL
June VHF Contest are in December's QST, and several NMVHF folks won
their categories in the Rocky Mountain Division:
AA5PR Limited Rover
W9RM Single-Op High Power
AI5I Single-Op Low Power
AA5B (+KK6MC) Limited Multi-Op
Congratulations!
Links:
------
[1] https://nmvhf.groups.io/g/main/message/1053
[2] https://groups.io/mt/78830986/519044
[3] https://nmvhf.groups.io/g/main/post
[4] https://nmvhf.groups.io/g/main/editsub/519044
[5] https://nmvhf.groups.io/g/main/unsub


Re: june VHF results

Jay
 

Congrats to all you guys.
Well done!

Would love to setup skeds with any and all of you for Jan!

 - Jay N1AV

On Wed, Dec 9, 2020 at 8:12 AM Bruce Draper <bruceaa5b@...> wrote:
Haven't seen this mentioned here yet. The results for the 2020 ARRL June VHF Contest are in December's QST, and several NMVHF folks won their categories in the Rocky Mountain Division:

AA5PR                Limited Rover
W9RM                 Single-Op High Power
AI5I                      Single-Op Low Power
AA5B (+KK6MC)  Limited Multi-Op

Congratulations!



Re: june VHF results

Keith Morehouse
 

Nice to work you during phone SS, Bruce.

Now, who's going to be on for January VHF ??

-W9RM

Keith Morehouse
via MotoG


On Wed, Dec 9, 2020, 8:12 AM Bruce Draper <bruceaa5b@...> wrote:
Haven't seen this mentioned here yet. The results for the 2020 ARRL June VHF Contest are in December's QST, and several NMVHF folks won their categories in the Rocky Mountain Division:

AA5PR                Limited Rover
W9RM                 Single-Op High Power
AI5I                      Single-Op Low Power
AA5B (+KK6MC)  Limited Multi-Op

Congratulations!



june VHF results

Bruce Draper
 

Haven't seen this mentioned here yet. The results for the 2020 ARRL June VHF Contest are in December's QST, and several NMVHF folks won their categories in the Rocky Mountain Division:

AA5PR                Limited Rover
W9RM                 Single-Op High Power
AI5I                      Single-Op Low Power
AA5B (+KK6MC)  Limited Multi-Op

Congratulations!



Re: ARRL card checker

Keith Morehouse
 

Tnx Bob.  I need about 40 VUCC cards checked and my local guy is hard to get hold of.  I'll keep you in mind.

-W9RM

Keith Morehouse
via MotoG


On Fri, Nov 20, 2020, 9:49 AM Bob Norton <n5epa.bob.n@...> wrote:
I am Keith

DXCC Card Checker Master List

Use this quick-reference PDF to find an authorized DXCC Card Checker.

In addition to DXCC, ARRL DXCC card checkers are authorized to check cards for these other ARRL/IARU awards:

WAS    (Worked All States)
VUCC (VHF/UHF Century Club)
WAC   (IARU Worked All Continents)


Bob N N5EPA

My info is good at QRZ.com and ARRL site

73, Bob

On Fri, Nov 20, 2020 at 9:44 AM Keith Morehouse <w9rm@...> wrote:
Is there anyone in the club who's a authorized VUCC card checker ?

-W9RM

Keith Morehouse
via MotoG


Re: ARRL card checker

Bob Norton
 

I am Keith

DXCC Card Checker Master List

Use this quick-reference PDF to find an authorized DXCC Card Checker.

In addition to DXCC, ARRL DXCC card checkers are authorized to check cards for these other ARRL/IARU awards:

WAS    (Worked All States)
VUCC (VHF/UHF Century Club)
WAC   (IARU Worked All Continents)


Bob N N5EPA

My info is good at QRZ.com and ARRL site

73, Bob


On Fri, Nov 20, 2020 at 9:44 AM Keith Morehouse <w9rm@...> wrote:
Is there anyone in the club who's a authorized VUCC card checker ?

-W9RM

Keith Morehouse
via MotoG


ARRL card checker

Keith Morehouse
 

Is there anyone in the club who's a authorized VUCC card checker ?

-W9RM

Keith Morehouse
via MotoG


Re: [222Activity] MSK144 vs FSK441

Keith Morehouse
 

The main thing FSK441 has going for it is SINGLE TONE. 

Various literature can point to some advantages and some disadvantages of each mode (MSK144 v FSK441), mostly focusing on 2-3 dB more or less sensitivity, which, IMO, is not near as important with meteor scatter as it might be with very weak constant signal terrestrial or EME work.  The bottom line, as I see it, is the ability to detect, aurally and visually, the tiny, tiny single tone artifacts in the waterfall display (and between your ears) when using FSK441.  It's been proven by countless contacts that this ability increases completion rates.

It's been suggested that a single tone isn't valid because "the operator doesn't know WHO sent that tone".  When I set up a 222 sked on a specific frequency (not on a "calling" frequency), using a long boom yagi(s) with sharp pattern, pointed at my partner station, running a specific sequence and using gear on both ends with better then average frequency accuracy and stability (most successful ops on 222 have accurate means of being "on frequency" and WSJT modes, even the old ones, give you a relatively good method of detecting how accurately you're netted to the other station)  I suspect I have a chance, very close to 100%, of knowing EXACTLY who I'm hearing.

It's also been suggested that FSK441 single-tone isn't valid because no information is passed.  I consider that to be a pretty weak argument since a multitude of operators used FSK441 daily for over a decade to make probably 10's of thousands of contacts on 6M and above and nobody has yet come forth to try and "cancel" those contacts.  Contacts can not be made invalid just because technology changes.  Furthermore, the 4-tone aspect of FSK441 single-tone DOES pass along "decodable" data, with individual messages (R26, RRR, 73, ect) corresponding to individual tones (frequencies) that are easily recognized when stations are closely netted in frequency.

I strongly advocate the continued use of FSK441, outdated as it is, on 222 meteor scatter.

-W9RM

Keith J Morehouse
Managing Partner
Calmesa Partners G.P.
Olathe, CO


On Sun, Nov 15, 2020 at 8:09 AM James Duffey <JamesDuffey@...> wrote:
If you are interested in a quantitative comparison of the two modes, WB2FKO’s paper comparing MSK144 with FSK441, referenced in K5ND’s web article, is an enlightening read and well worth the time spent with it:


 Unfortunately, due to the pandemic shutting down the VHF society meetings, this nice bit of analysis has not received the widespread distribution it deserves. - Duffey

James Duffey KK6MC
Cedar Crest NM


Possible enhancement into AZ

Jay
 

FYI all.  1:07 PM

Showing possible enhancement into AZ at the 144 MHz frequency.

- Jay N1AV


Re: Club call

Keith Morehouse
 

Ask and you shall receive.

The attachment is a spot search on W5UHF from DX Summit, using a start date of 1995.  You'll note the last entry is 2009 and probably the previous owner, who I didn't know.  There is another page, but this page answers my question.

With the rise of Skimmers for CW spots and PSKReporter for WSJT spots, both feeding into aggregators like DX Summit, I find it VERY unlikely W5UHF has been used for any period of time on either of those modes.  The QSO in question must have been a very unlikely error or .......

-W9RM

Keith J Morehouse
Managing Partner
Calmesa Partners G.P.
Olathe, CO
Screenshot 2020-11-10 085650.jpg



On Tue, Nov 10, 2020 at 8:53 AM Bob Kmak <bobkmak@...> wrote:
Hi Arne,

I totally agree and expect that I would be notified if anyone was going to use the call. I don’t believe it was a valid contact but wanted to try to make sure that no one was using our club call on 160m. I’m going to return the card.

As far as a pirate using the call that’s more difficult. I’ll look into it as much as I can- if anyone sees our call showing up in spots please let me know.

73,

Bob K5WO


> On Nov 9, 2020, at 1:10 PM, ARNE GJERNING <n7ka@...> wrote:
>
> AS trustee you are responsible for all actions as the result of someone using the call.  Therefore you should control use closely.  No NMVHF club member should be using the call UNLESS you have authorized another club member to use it for an event.  Technically, this means if I would like to use the W5UHF call in a VHF contest I must first ask you and receive permission to do so from you.  And it would be a good idea to keep  aa log of call use. 
>
> To that end you should consider publishing a note to all members that use of W5UHF requires a request and approval from you.
>
> Now for that W6GLN?? QSL  request, advise him no one was AUTHORIZED to  use the call.
>
> And W9RM is right, how can you  mess up  a call in FT8 when the call is derived by setup data in the computer
> Arne N7KA






Re: Club call

Bob Kmak
 

Hi Arne,

I totally agree and expect that I would be notified if anyone was going to use the call. I don’t believe it was a valid contact but wanted to try to make sure that no one was using our club call on 160m. I’m going to return the card.

As far as a pirate using the call that’s more difficult. I’ll look into it as much as I can- if anyone sees our call showing up in spots please let me know.

73,

Bob K5WO

On Nov 9, 2020, at 1:10 PM, ARNE GJERNING <n7ka@comcast.net> wrote:

AS trustee you are responsible for all actions as the result of someone using the call. Therefore you should control use closely. No NMVHF club member should be using the call UNLESS you have authorized another club member to use it for an event. Technically, this means if I would like to use the W5UHF call in a VHF contest I must first ask you and receive permission to do so from you. And it would be a good idea to keep aa log of call use.

To that end you should consider publishing a note to all members that use of W5UHF requires a request and approval from you.

Now for that W6GLN?? QSL request, advise him no one was AUTHORIZED to use the call.

And W9RM is right, how can you mess up a call in FT8 when the call is derived by setup data in the computer
Arne N7KA


Re: Club call

KC7QY
 

I just looked at QRZ and see that there have been 881 lookups. Seems a bit large for a call that's only been used in V/UHF contests. Might be a pirate out there. You might consider putting a note on QRZ the the call is generally only used on VHF/UHF. 

Either way, I agree, send the card back as NIL and operation not authorized.

Jim KC7QY


On Monday, November 9, 2020, 03:45:57 PM MST, Ed <n5jeh@...> wrote:


I don’t believe a false decode would make it thru the complete QSO exchange.  May be wromg but that’s my take on it. Looks like someone was using the club call. ????

 

Ed n5jeh

 

Sent from Mail for Windows 10

 

From: K Chapman
Sent: Monday, November 9, 2020 1:34 PM
To: main@nmvhf.groups.io; N7KA@...
Subject: Re: [nmvhf] Club call

 

O

 

81 - 100 of 1143