Everything about Chapter 124 is summed up in the monthly
July 2010 Newsletter
(below the list of advertisers)
| Representative | Web site |
Business
card |
|---|---|---|
| Tom Abbott | Belden Electronics Division |  |
| Michael Bach WB6FFC |
|
|
| Larry Bloomfield KA6UTC |
|
|
| Al Jason | Harris Broadcast (Radio) |  |
| Tom Franklin | Norcom |  |
| Edward Forke | Shively Labs |  |
| Matt Granard | Westlake Electronic Supply |  |
| Joe Harrington | Harrington Tower Services |  |
| Gray Hearting | Gray Frierson Hearting & Associates |  |
| Bryan Jones | Broadcast Electronics |  |
| Matt Leland | Dielectric |  |
| John Pierce | Tektronix |  |
| Robert Rogers | Broadcast Tower Services |  |
| Larry Sayer | Rohde & Schwarz |  |
| Debbie Storz | Econco |  |
| Ellis Terry | Nautel |  |
| Bob Trimble N7IYI |
RF Specialties |  |
| Michael Troje | Continental Electronics |  |
| Brian Walker | Professional Video & Tape, Inc. |  |
Snail mail:
SBE Chapter 124
PO Box 1727
Portland, OR 97207-1727
You may use excerpts if attributed to the original
source and
"Water Cooled Newsletter" SBE Chapter 124, Portland, OR
In order to prevent e-mail addresses from being "mined" and then spammed, there are no longer clickable links to e-mail addresses, or intact e-mail addresses. For the addresses shown, substitute "@" for "at" and "." for "dot." Thanks!
| WHEN: |
Tuesday July 13th, Noon |
|
| WHERE: | Buffalo Gap Saloon &
Eatery 6835 SW Macadam (at California) Portland 503-244-7111 |
|
| WHAT: |
The Folks from Digital Broadcast will present their latest TV automation Technology. (Lunch will be covered)
|
The Eugene meeting is usually the day after the Portland meeting.
The Medford meeting is usually two days after the Portland meeting.
The Portland meetings are held at lunchtime on the second Tuesday of every month. Everyone is welcome to attend the meetings. When you get to the Buffalo Gap, go in the SW California Street-side door, turn left, and go upstairs. We have the whole upper floor, which has its own bathrooms. Be sure to get there early, because after the Gap's parking lot fills up you'll be searching the narrow streets for blocks around to find a place to park. For more information on Chapter 124 in Portland/Vancouver/Salem, contact Chapter Chair Ev Helm, e-mail chairman at sbe124 dot org, or call him at 503-977-7752. For a map and directions see http://www.sbe124.org/SBE124_maps.html .
Al Jason, Harris Broadcast District Sales Manager-Radio Products, brought Timothy B. Anderson, CSRE/CBNT/DRB, Manager, Harris Strategic Radio Product Development.
Tim did a presentation on a number of topics surrounding the future digital radio, including the HD Radio power increase, advanced digital services such as multimedia and graphical content, and a preview of some of the latest radio transmitter developments at Harris.
Tim Anderson
A record crowd!
Matt Granard of Westlake Electronics will present the latest from Ensemble Designs.
(Lunch will be covered)
by Kent Randles K7YXZ CBRE
Senior Engineer, Entercom-Portland
Co-Chair, Portland/Vancouver LAECC
Chapter Secretary/Newsletter Editor
secretary at sbe124 dot org
July 24th. See http://sbe16.com/?p=227 for details. You can see my pictures from 2008, and a link to yet another set, at http://www.sbe124.org/Tours/Washington/Seattle/index.html. If you enjoy touring 50 kW AM transmitter sites, some of them historic at at least one with a historical transmitter, you can't miss it.
We're very close to announcing this year's date for the BBQ, which will be held in Sandy, OR next month.
A week before Field Day we had to change locations, so it became a real adventure in setting up three ham radio stations, running on emergency power, in the front yard of Eric Margeson W7OSN. Eric is an experienced tree-supported antenna installer, so he and son Adam KF7DSQ flew a 40-meter horizontal loop over their backyard. Eric, Denny WA7DRO, John KSØF, Louis KF7BUU, my wife Patti, and I managed to hang a 90-foot long' B&W folded dipole between a couple other trees and over the end of the dead-end street, supported in the center by a crank-up tower mounted on a trailer that was parked in the street. That tower had a 6-meter yagi on it with the VHF station run by Joel K7TGZ.
Eric's wife Debbie W7OSM, cooked no less than six pies for dinner on Saturday night, which we ate on their backyard deck.
What a great weekend!
Pictures here.
There are 14 FM HD signals (twelve with HD2, and one of those has an HD3) and three AM HD signals on the air in the Portland market. Go here for a complete list.
There are now over 1000 multicast stations and 100 HD Radios to choose from. See http://www.hdradio.com/buyers_guide.php.
A lot of FM HD stations are struggling to stay within the "HD Radio FM Hybrid Waveform Noise and Emissions Limits," better know as "the mask," as they increase power above the -20 dBc or 1% level. There is a really good explanation here. This is especially true of stations where the HD signals are "backfed" into a combiner and their output is fed to a hybrid at each antenna bay and the isolation between the analog and digital is not ideal. See http://www.shively.com/0208_cougar_mt.php . Here in Portland, it's what is being done with the five FM HD stations at Skyline Tower and two commercial FM HD stations at the Sylvan Tower.
Stonehenge Tower has no separate feed for digital, so those five FM HD stations are either low-level combined (common amplification), mid-level combined, high-level combined, or use separate antennas (space combined).
One fix is to use "sharp-tuned filters."
The Society of Broadcast Engineers has
announced the opening of the SBE University; a series of on-line, on-demand
courses designed to bring expert instruction on a variety of technical
radio and television topics to broadcast engineers at an affordable price.
Beat the recession with these all-new, affordable "nuts and bolts" courses available to take anytime at your convenience. No travel, hotel or other costs to eat up your limited training budget, these courses are developed by experts for the SBE.
The Society of Broadcast Engineers offers numerous levels and types of certifications for broadcast technicians and engineers.
Operator Level Certifications
Broadcast Networking Certification
Engineering Level Certifications
Specialist Certifications
Exams are given several times a year locally, and annually at the NAB Convention in Las Vegas.
Exam schedule:
| Exam Date/Window | Location | Application Deadline |
| November 5-15 | Local Chapters | September 17 |
For information, e-mail our Chapter Certification Chair, Eric Margeson at certification at sbe124 dot org.
The new SBE CertPreview will be a download from the SBE website or you may choose to have the CD mailed to you. The program will be installed onto your computer and will be machine specific. The program will be available for Windows and Mac. Each sample test contains 100-150 questions typical of those found on an actual exam. You will take the exam in its entirety and be able to mark and review questions before scoring your sample exam. By scoring the exam, you will be given a percentage and a breakdown of categories contained within the exam. This will help you identify your strengths and weaknesses. You will also be able to revisit questions that you answered wrong.
Cost is: $29 for the download (per test)
or $33 for the CD (per test)
add $3 per CD for shipping/handling
* Multiple tests can be purchased on one CD
Click here for the fillable order form
From Jack Roland KEØVH
The net meets on the 1st and 3rd Saturdays of the month (except in August) at 10 AM Pacific Time. In Denver on the WA2YZT repeater, on 146.805 and 447.175 with a pl of 186.2. AND, through the Internet Radio Linking Project on the Denver Reflector Node #9615.
To find a node in your area you can go to the www.irlp.net website, click on the "Node Info" on the left, then click on the "List of nodes and frequencies" in the middle of the page. In a moment a full list of node numbers, cities, countries and the like will appear and do a page search for you city. When the node is highlighted click on the node number and that repeater information will appear, usually with contact information of the trustee/repeater owner. When you have done this and are able to access your node (usually at 4 digit code on the local repeater unless it is a closed club system), you will want to connect to the Denver Reflector Node #9615. . See also www.wa2yzt.com
If you need further help contact me at KEØVH at qsl dot net .
[The participating Portland node is 3420, N7PIR at 440.450 with a PL of 103.5 Hz, now located on the Skyline Tower. SBE 124 <1 GHz frequency coordinator Mike Steiner KD6LVP is the trustee. See http://www.qsl.net/n7pir .]
For southwestern Washington and ALL of Oregon: >1 GHz call Ev Helm W7EEH at 503-977-7752, fax 503 293-4877, or e-mail microwave at sbe124.org; <1 GHz call Mike Steiner KD6LVP at 503-235-8517, fax 503-231-4624, or e-mail under1gig at sbe124.org.
You can browse the database at http://www.sbe124.org/part_74/.
If you are not IN the database, you are NOT coordinated.
At noon on the second Tuesday of every month, broadcast engineers in Portland meet at The Buffalo Gap Saloon & Eatery, 6835 SW Macadam (at SW California), 503-244-7111. Enter on the California side, take the first left, and go up the stairs. We have the entire 2nd floor and our own bathrooms. Get there early, because after the Gap's lot fills up, you'll be searching the narrow streets for blocks around to find a place to park. For more information on the restaurant see http://www.thebuffalogap.com . For directions, go to http://www.sbe124.org/SBE124_maps.html. For chapter information call Chapter 124 Chair Ev Helm at 503-977-7752, or e-mail chairman at sbe124 dot org. As usual, anyone, member or not, is welcome to attend.
