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Re: Antenna presentation at April 28th BVARC meeting

 

Here are the links to Greg Mihran's design files. ?73, Peter
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Google Cloud Drive File Links (KJ6ER):

  1. KJ6ER Antennas Primer –
  2. PERformer 40M-6M Quarterwave Vertical –
  3. Challenger 20M-6M OCF Halfwave Vertical –
  4. Dominator 17M-10M EF Halfwave Vertical –
  5. Dominator 17M-10M EF Halfwave 2-Element Vertical Beam –

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Greg Mihran, KJ6ER

Campbell, California

gmihran@...

(650) 714-7577

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WPI online talk: Artificial Intelligence, Communications, and Software-Defined Radio

 

A neighbor who is a WPI grad pointed this out to me. Might be interesting. Pre-registering to be part of the Zoom audience is free.
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Mike, K1VI
Consortium Meeting

 

The next scheduled Consortium meeting is? May 6th at 7pm at Manville Rod and Gun meet hall.? 250 High St. Manville RI.??All are welcome?
there are no fees charged and you do not have to have a Amateur Radio License (we have other venues to obtain a license).? Come early and
join in the social aspects of ham radio.
?
Jim J
K1GND
ASTRON POWER SUPPLY

 

I HAVE AN ASTRON POWER SUPPLY 35A.? (NOT A SWITCHING POWER SUPPLY) FOR SALE 100.00.
CALL ME.
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JIM J
K1GND
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Re: UPCOMING MEETING BVARC

 

Jim,
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If Martin backs out, I'll take the dummy load.
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Mickey K1WMC

On 04/26/2025 8:20 AM EDT Jim and Ann via groups.io <anniemac28@...> wrote:
?
?
BVARC Members
?
I will have with me the following items for sale:
?
A 2m FM transceiver (hand held and NOT baofeng) this unit is complete with mic, cables and charger.??
40.00 .
?
A 1500 watt dummy load (perfect for portable ops).? Asking price?of 25.00 .
.
A RigExpert ZOOM series antenna analyser Model AA-35.? Asking price?
100.00 .? Take some time and look this unit up??at DX Engineering.? The offer includes carrying case, strap and usb transfer cable.?
(Like new and it works FB).
?
Call me if you don't want to wait for the meeting date.
?
Jim J K1GND
?
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K1GND SALE

 

The RigEXPERT VNA is NO LONGER FOR SALE.
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JimJ K1GND
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Re: UPCOMING MEETING BVARC

 



The dummy load has a potential buyer.? I am removing the item from the "for sale list".


Jim J K1GND
Re: UPCOMING MEETING BVARC

 

Good morning Jim
?
If that's a 1500W dummy load, I would be interested.
?
However, I won't be able to make the meeting this month.
?
73
Martin AA1ON

On 04/26/2025 8:20 AM EDT Jim and Ann via groups.io <anniemac28@...> wrote:
?
?
BVARC Members
?
I will have with me the following items for sale:
?
A 2m FM transceiver (hand held and NOT baofeng) this unit is complete with mic, cables and charger.??
40.00 .
?
A 1500 watt dummy load (perfect for portable ops).? Asking price?of 25.00 .
.
A RigExpert ZOOM series antenna analyser Model AA-35.? Asking price?
100.00 .? Take some time and look this unit up??at DX Engineering.? The offer includes carrying case, strap and usb transfer cable.?
(Like new and it works FB).
?
Call me if you don't want to wait for the meeting date.
?
Jim J K1GND
?
?

UPCOMING MEETING BVARC

 

BVARC Members
?
I will have with me the following items for sale:
?
A 2m FM transceiver (hand held and NOT baofeng) this unit is complete with mic, cables and charger.??
40.00 .
?
A 1500 watt dummy load (perfect for portable ops).? Asking price?of 25.00 .
.
A RigExpert ZOOM series antenna analyser Model AA-35.? Asking price?
100.00 .? Take some time and look this unit up??at DX Engineering.? The offer includes carrying case, strap and usb transfer cable.?
(Like new and it works FB).
?
Call me if you don't want to wait for the meeting date.
?
Jim J K1GND
?
?
Antenna presentation at April 28th BVARC meeting

 

Here's a brief write up on Greg Mihran's presentation (attached). ?Many POTA enthusiasts describe the POTA PERformer as a game changer. ?What struck me about Greg's work is his attention to both antenna modeling and field measurement.
?
For example many amateurs have been told that ground plane radials should be 1/4 wavelength long but by measuring the current flow on the radials he was able determine this is not optimal. Proximity to the ground detunes the radials lowering their resonant frequency so the point of maximum current is pulled away from the base of the vertical into the ground increasing losses.
?
Another novel concept is measuring how counterpoise length can affect the resonance of an end fed half wave. ?Most of us have been told the outer shield of the coax can serve as the counterpoise and the length doesn't matter but that's not necessarily optimal. ?When I'm operating portable I want the most efficient antenna system I can transport and setup easily.
?
Bring your antenna questions and enjoy!
?
73, Peter K1AV
?
?

KJ6ER Presentation.pdf
KJ6ER Presentation.pdf

Requseting contact

 

Will AC1SR and WA1Y please give me a call.
?
Jim K1GND
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BVARC Field Day planning meeting (Monday 21-Apr-2025, 8-9pm)

 

Hello BVARC,
?
I’ll be hosting our first Field Day Committee planning session via Zoom at the link below.
All interested BVARC club members are welcome to join.
?
Monday 21-Apr-2025, 8-9pm
?
https://us06web.zoom.us/j/82740679518?pwd=datO7wTVZK7K3W4tejB4qvtJa0Islt.1
Passcode (if needed) 245421

===
Proposed Agenda Topics
? ? ?Don't need to resolve all of these in the first meeting,
? ? ?intent is to solicit club input, identify volunteers, and delegate needed actions or planning.

- Welcome and Introductions
-?Confirm known action items regarding Chopmist Hill site
? ?- Senior Center contact
? ?- Permits needed
? ?- Port-a-john
? ?- Tents / shelter (improvements needed?)
? ?- Internet?
-?Discuss and agree on operating category (2A ?)
-?Discuss planned stations (2 HF, 1 VHF, GOTA)
? ?- Volunteer to bring equipment for each station
-?Discuss planned antennas
? ?- Volunteer to bring each planned antenna and lead setup
-?Logging plan: N1MM?, N3FJP?
? ?- laptops to run logging software
- Food
? ?- Saturday lunch?
? ?- Evening potluck?
- Site logistics
? ?- tables, chairs, generators
-?Setup schedule
-?Operator sign-up
-?Bonus opportunities:
? ?- Publicity
? ?- Field Day message
? ?- Message to Section Manager
? ?- WinLink
? ?- Satelite
? ?- ?
-?Other topics/suggestions?

ARRL Field Day is one of the most popular events in Amateur Radio and the biggest BVARC activity of the year.
I look forward to your input and support to make this a fun adventure for all.

73, Peter K1AV
Re: Greetings from P4/K1AV in sunny Aruba

 

Activated Arikok National Park today, 26 QSOs on 10m CW.
Re: Bellingham Library Event in the Valley Breeze

 

My mistake it is the 5th,? Nww England Free Jacks kickoff is the 6th at 2pm in Quincy vs the Miami Sharks
73 Matt NA1Q
Re: Bellingham Library Event in the Valley Breeze

 

Wrong date,clerical error sb 4/5


On Fri, Apr 4, 2025 at 1:31?PM Michael Kenney via <mpkarch=[email protected]> wrote:
April 6th?

On Apr 4, 2025, at 12:21?AM, Teri Diiorio via <teri.diiorio=[email protected]> wrote:

?Thanks to our excellent Public Relations Department—Roland Blais!
73?Teri?W1PUP

On Apr 3, 2025, at 9:06?PM, Matthew Penttila NA1Q via <mcpenttila=[email protected]> wrote:

The Bellingham Library Event on April 6th is listed in the calendar section of the Valley Breeze.
73 Matt NA1Q
<1000007246.1743728649450.jpeg>
Re: Bellingham Library Event in the Valley Breeze

 

开云体育

April 6th?

On Apr 4, 2025, at 12:21?AM, Teri Diiorio via groups.io <teri.diiorio@...> wrote:

?Thanks to our excellent Public Relations Department—Roland Blais!
73?Teri?W1PUP

On Apr 3, 2025, at 9:06?PM, Matthew Penttila NA1Q via groups.io <mcpenttila@...> wrote:

The Bellingham Library Event on April 6th is listed in the calendar section of the Valley Breeze.
73 Matt NA1Q
<1000007246.1743728649450.jpeg>
Re: Bellingham Library Event in the Valley Breeze

 

开云体育

Thanks to our excellent Public Relations Department—Roland Blais!
73?Teri?W1PUP

On Apr 3, 2025, at 9:06?PM, Matthew Penttila NA1Q via groups.io <mcpenttila@...> wrote:

The Bellingham Library Event on April 6th is listed in the calendar section of the Valley Breeze.
73 Matt NA1Q 1000007246.1743728649450.jpeg
Bellingham Library Event in the Valley Breeze

 

The Bellingham Library Event on April 6th is listed in the calendar section of the Valley Breeze.
73 Matt NA1Q

Re: Greetings from P4/K1AV in sunny Aruba

 

PETER

WHAT BAND AND FREQ WILL YOU BE TRYING TO GET TO BVARC?

JIM K1GND





On Wednesday, April 2, 2025 at 02:09:04 PM EDT, Peter Sichel K1AV <psichel@...> wrote:


Hello BVARC,

I will be operating portable from Aruba through April 9th and had a brief contact with K1ETA Tuesday evening. ?I'll be looking to make contact with the crew at the Bellingham library Saturday morning and activating Arikok National Park (AW-01) Sunday afternoon (on 15 and 20m CW). ?Feel free to email me if you want to schedule a QSO (psichel@...).

I missed the club meeting Monday and would like to invite any who are interested to join the Field Day committee for the coming June event. ?I’ll be hosting our first planning meeting via Zoom on Monday April 21st from 7-7:30pm. ?Will email details after I return.
?
73, Peter ?P4/K1AV
?
?
Antenna is a 25' Rybakov (3/8th wave) vertical support by a 10m fiberglass mast.
?
?
Re: Greetings from P4/K1AV in sunny Aruba

 

Have lots of (DX) fun in the sun !!!

On 04/02/2025 2:09 PM EDT Peter Sichel K1AV <psichel@...> wrote:
?
?
Hello BVARC,

I will be operating portable from Aruba through April 9th and had a brief contact with K1ETA Tuesday evening. ?I'll be looking to make contact with the crew at the Bellingham library Saturday morning and activating Arikok National Park (AW-01) Sunday afternoon (on 15 and 20m CW). ?Feel free to email me if you want to schedule a QSO (psichel@...).

I missed the club meeting Monday and would like to invite any who are interested to join the Field Day committee for the coming June event. ?I’ll be hosting our first planning meeting via Zoom on Monday April 21st from 7-7:30pm. ?Will email details after I return.
?
73, Peter ?P4/K1AV
?
?
Antenna is a 25' Rybakov (3/8th wave) vertical support by a 10m fiberglass mast.
?
?

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