Date   

Q65, newest WSJT mode

Bruce Draper
 

“Q65 will enable stations with a modest Yagi and 100 W or more and to work one another on 6 meters at distances up to ~1600 kilometers at most times, in dead band conditions.”
More here:
http://www.arrl.org/news/wsjt-x-2-4-0-introduces-new-digital-protocol-q65

    -Bruce AA5B


2021 New Mexico TechFest -- Call for Presentations

Brian Mileshosky
 

Greetings —

Rocky Mountain Ham Radio - New Mexico (RMHAM) is pleased to announce its seventh annual New Mexico TechFest, an ARRL-sanctioned operating specialty event, on Saturday, February 27, 2021.  TechFest features a day of quality presentations and demonstrations provided by some of New Mexico and Colorado’s leading technical hams on a variety of emerging and relevant topics within amateur radio.  Its purpose is to facilitate the sharing of technical knowledge and collaboration within the amateur radio community, and to encourage the discussion of new ideas with one another.

Due to the ongoing COVID-19 pandemic and uncertainty around New Mexico’s public health orders, this year’s event will be conducted virtually. 

TechFest is open to all interested hams.  Admission is $10 (proceeds will offset event related expenses detailed on the event website).  Online registration will open on or about the weekend of January 23, when the event’s lineup of presentations and demonstrations is announced.  Presentation-related prizes will be drawn throughout the event.

CALL FOR TECHFEST PRESENTATIONS AND DEMONSTRATIONS: The New Mexico TechFest is seeking presentations and demos on emerging and relevant amateur radio technical topics, techniques, and applications.   If you’ve been working on a special project, are researching a technical topic, or have discovered or adopted a technology or technique that you’re applying within amateur radio, TechFest is a great venue to share your knowledge with the amateur radio community in a casual and friendly environment.  Presentations will generally be 50 minutes in total length.  Hams interested in providing a presentation or demonstration are asked to submit a summary/abstract of their proposed topic for consideration by January 17, 2021. We will be happy to assist you with conducting your presentation virtually.  Visit the New Mexico TechFest website for submission details and key dates.

Additional details about the New Mexico TechFest, for both attendees and potential presenters, can be found at http://www.rmham.org/wordpress/new-mexico-techfest  A printable event flyer for posting on ham listserves, your club’s website, or your club’s newsletter is attached.

We hope to see you at TechFest 2021.

73,
Brian N5ZGT (President, Rocky Mountain Ham Radio — New Mexico)



Re: AFRL

Keith Morehouse
 

Yes.  That's more or less the same copy that was in the brief I read, except that callsign was left out for some reason.

-W9RM

Keith Morehouse
via MotoG


On Tue, Dec 22, 2020, 8:39 AM Brian Mileshosky <n5zgt@...> wrote:

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

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

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