Upcoming Events

Sat Nov 28 @ 9:30AM - 10:00AM
OC ARES Training Net
Mon Nov 30 @ 6:05AM - 07:15AM
PT Net - Jim, KI4HQO, ncs
Mon Nov 30 @ 8:00PM - 08:30PM
10 Meter Sideband Net (N1LN ncs)
Tue Dec 01 @ 6:05AM - 07:15AM
PT Net - Rhett, KE4HIH, ncs
Tue Dec 01 @ 6:00PM - 08:30PM
DFMA Meeting
Tue Dec 01 @ 6:01PM - 08:30PM
DFMA Holiday Dinner Party
Welcome to the Durham FM Association

The Durham FM Association is a group of friendly amateur radio operators interested in all aspects of amateur radio service. Members in Durham, Chapel Hill, Raleigh, and surrounding areas of North Carolina enjoy operating through VHF and UHF repeaters sponsored and maintained by the club.

Currently the club operates FM voice repeaters on 145.450-, 147.225+, 224.260-, 444.100+ PL:100.0 and 444.450+ MHz (the plus and minus indicating standard offsets on the respective bands).

We normally meet on the 1st Tuesday of the month (see Calendar) with Dinner (optional) at 6:00pm and the business meeting and program at 7:00pm.  We are meeting at Bullock's BBQ, on 3330 Quebec Drive in Durham. [click for map] (For more info on each meeting, check the Calendar entry.)

Our club runs a great hamfest toward the end of May each year. Thia year DurHamFest will be at a new location!  Set just off I85 in Durham, it will be in the Durham Public Schools Staff Development Center at 2107 Hillandale Road Durham, NC 27705. Dealers sell new and used equipment, books, and parts in an air-conditioned facility.  Outside, "tailgaters" also offer a wide variety of used, lightly used and some new equipment and supplies. Besides the buying, selling, and trading, door prizes and fellowship with old and new friends make this a really fun event. (Click on the DurHamFest tab above for more information.)

Dec 1 Program: DFMA Christmas Party Print E-mail
Written by ku4gc   
Wednesday, 25 November 2015 11:13

Continuing a tradition of having the DFMA pick up the club member's tab for our December Holiday Dinner Meeting, we will meet at Bullock's Barbecue Restaurant in Durham starting at 6:00pm. You will be able to order from the menu. Each member may also bring one guest. This Christmas dinner is the program. Bring your spouse or friend!

This is our Christmas Meeting! In that tradition you may (optionally):


* Bring a Christmas gift for a child to be distributed to needy families. If wrapped, mark gender and age range on the outside. If not wrapped, that's fine too. If you have one -- a gift bag would work too.

* The Club will make its annual gift. It will be split between the Durham Rescue Mission and the Food Bank of North Carolina. We will be passing the "hat" for additional personal contributions to these causes. (Some members will drop a check in the hat made out to the charity of their choice -- we will forward it -- the cancelled check may be useful at tax time.)

All gifts are optional - bring the gift of your presence for all to enjoy!


There will be no program as such. However, be ready to relate "Ham Radio New Years Resolutions" - what are your ham radio goals for the coming year. Do you finally want to go to Dayton? Do you plan to put up (or take down) a tower? Are you finally going to put together a real "go kit". Is Morse code in your future? We hope you'll be ready to share your ham radio dreams.

Bullock's Bar B Cue

3330 Quebec Dr
Durham, NC 27705
(919) 383-3211

(Between: Lasalle St & Mountainview Ave)
(Near: Lasalle St N & Hillsborough Rd)

[click here for map]



Last Updated on Wednesday, 25 November 2015 11:16
Group Purchase of Ed Fong's J-Poles Print E-mail
Written by NA4VY   
Sunday, 08 November 2015 21:29

At the DFMA meeting on Tuesday we had a live presentation via Skype on Ed Fong's DBL dual  band J-Pole antennas that he has designed and manufactures. There was considerable interest in purchasing these antennas and he has graciously provided our club with discounted price list and if we have an order of $250 or more, we get an additional 10% off which should cover shipping charges.

For more information on Ed’s antennas see his web site: http://edsantennas.weebly.com/about.html

In addition to the dual band antennas he also has an interesting triband base J-Pole antenna design which should especially be of interest to those who might need 220 band capability (we have a 224.6 local repeater) for only $50 including the PVC pipe. Note that the other base station antennas do not include the PVC pipe but this can be obtained locally from Lowe’s.

I have agreed to collect orders for a group purchase. To simplify things payment will not be necessary until we receive the finished antennas and/or parts which will then be available for pickup and payment at the next DFMA meeting.

If you wish to order any of the following items I’ll need to know the model or accessory and quantity desired together with your call, name and email address. To give everyone enough time to get the group order together please respond by Sunday November 22.

Thanks again to DFMA for agreeing to doing this and to Mark KR3AM for

Dave NA4VY        na4vy at msn dot com

Below is Ed’s email to Mark showing the discount prices (compared to the web site)

From: edison fong
Date: Wed, Nov 4, 2015 at 5:04 PM
Subject: Re: antenna purchases
To: Mark Sidell

Here are the discount prices for your group.
For the base station antennas (with exception of the triband) you will need to purchase the pvc pipe at Lowe's.  The Triband is $50.  We only sell these with the pvc pipe since they require and an anti resonant coil.  Shipping will depend on how many are ordered.  In quantity of one (its about $12).  However each antenna thereafter is only $3 extra.
Here are the prices on our standard product line.  Remember as a group you get 10% discount on orders of $250 or more. 

DBJ-1 dual band base antenna - available in HAM (144-148 MHz and 440-450 MHz) or Commercial (152-157 MHz and 460-470 MHz).  Maximum power input 75 watts. - $25
(also available in 250 watt version for $35)

DBJ-2  dual band roll up antenna -  available in HAM (144-148 MHz and 440-450 MHz) or Commercial (152-157 MHz and 460-470 MHz).  Maximum power input 75 watts. - $25

DBJ-220 220 MHz base antenna  -  uses J-configuration fits inside a pvc pipe.  $20

DBJ-UHF UHF – US Patent 8,947,313   +5dB gain no radial collinear – featured in CQ magazine  $40

All antennas can be custom tuned to your operating frequency at NO CHARGE.

The roll up includes the follow accessories for no charge.
1 -  SMA to BNC adapter
1 -  reverse SMA to SMA adapter for Woxun and Motorola  radios
1 -  6 ft low loss RG58AU extension cable with BNC male on one end and BNC female on the other. 

Other accessories that we buy in large quantities and pass the savings to you.

BNC to PL259 adapter -  allows the DBJ-2 to adapt to most base and mobile radios.  $2

6ft low loss RG58AU extension cable for the roll up antenna   $5

50 ft RG8x with molded PL259 connectors  $25 plus $2 postage

On orders of $250 or more, we offer a 10% discount.  Only exception is the 50ft coax since we are reselling it at cost. 

Last Updated on Sunday, 08 November 2015 21:36
Nov 3 Program: The Dual-band J-pole Antenna - Design and Construction Print E-mail
Written by KD4YJZ   
Friday, 30 October 2015 21:42

Tuesday, November 3, 6pm, Bullock’s BBQ
Program:  The Dual-band J-pole Antenna - Design and Construction
By: Ed Fong, WB6IQN
This month's program will be a talk by Ed Fong, inventor of the DBJ dual-band J-pole antenna. Ed will discuss the antenna's theory and construction. Some of you may recall building the antenna at the OCRA antenna party organized by Steve (W3AHL) in 2010. For the talk, we will beam Ed live from California via Skype.

Ed was first licensed in 1968 as WN6IQN. He later upgraded to Extra Class with his present call of WB6IQN. He obtained BSEE and MSEE degrees from the University of California at Berkeley and his Ph.D. from the University of San Francisco. A Senior Member of the IEEE, he has 11 patents and over 40 published papers and books in the area of communications and integrated circuit design. Presently, he is employed by the University of California (previously at Berkeley and presently at Santa Cruz) as an instructor teaching graduate classes in RF design and high speed interface design. During his 30 year career he has performed work for Motorola, National Semiconductor, Phillips Semiconductor and Advanced Micro Devices.

It sounds like this will be a "lively" presentation. Our thanks to Mark Sidell, KR3AM, for his help with bringing the program to life.
- Karen, KD4YJZ

Red Cross Needs Volunteers for Smoke Alarm Installs Print E-mail
Written by KR3AM   
Friday, 30 October 2015 21:23

Did you know that 60% of all home fire fatalities occur in residences without a working smoke alarm? Join the American Red Cross, Durham Fire Department, and Durham County Fire Department on Saturday, November 14 at 9am as we install over 200 alarms in high-risk neighborhoods throughout Durham. We will be kicking us off at NCCU’s McDougald-McLendon Arena (616 E. Lawson St, Durham 27707) for a short training and then we’ll head out in the community in teams. Don't want to be an installer? No worries! We have roles for discussing fire safety with residents and documenting the event. No skills or prior experience necessary - bring your friends!

We would prefer individuals and groups to sign up at https://tinyurl.com/DurhamAlarms2015. However, walk-ins are fine too! Click on flyer link below for more information or contact Jeffrey at (919) 489-6541 ex. 4120 or This e-mail address is being protected from spambots. You need JavaScript enabled to view it . Thank you for helping to save lives!

Jeffrey Isaacson ¦ Volunteer Specialist

American Red Cross of Eastern North Carolina
4737 University Drive
Durham, NC 27707
(919) 489-6541 x4120 (p) ¦ (919) 418-0530 (c)
This e-mail address is being protected from spambots. You need JavaScript enabled to view it

Interested in volunteering? We need you! Please visit www.redcross.org/volunteer today!

[Click Here for flyer with more info] ( -- pdf)

Last Updated on Friday, 30 October 2015 21:37
Number 3 for Field Day 2015! Print E-mail
Written by W4SAR   
Thursday, 29 October 2015 11:24

Hi All-

I did not dream we'd do so well , given the propagation challenges, but then, the competition was challenged also!

We placed:

Overall: #3 out of 2,720
QRP: #2 out 307 (K6EI got us beat again)
Roanoke Division: #1 out of 213
North Carolina Section: #1 out of 82

Thanks to all in the DFMA and OCRA that did a capital job of preparation, and put in some long hours of operations. I am so looking forward to FD 2016!

73, Dave Snyder, W4SAR

Last Updated on Thursday, 29 October 2015 11:25

Page 1 of 38


Events Calendar

November 2015
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 1 2 3 4 5

Skywarn Audio

[Click Here for Skywarn Audio Feed of 146.880] Courtesy of RadioReference.com