Welcome to SBE Chapter 33
SBE Chapter 33 represents the Society of Broadcast Engineers and its members in Southwestern Ohio, which includes the Cincinnati and Dayton metropolitan areas. If you work in a technical capacity at a broadcast or related facility in our area, or are a contract engineer or broadcast consultant based in Southwest Ohio, please consider joining our Society.
To Our Dayton-area TV Station Engineers from your SBE33 Frequency Coordinator
November 19, 2020
Please be advised that the Navy and Marine Corps Spectrum Center in Ft. Meade, MD, has asked for coordination of a year-long test of a mobile CubeSat command and control ground station uplink at Wright Patterson AFB. This testing is scheduled to begin in February, will utilize 2037.5 MHz, operate at no more than 30 watts TPO into a 35dBi parabolic antenna, and use rather narrow-band (compared to TV usage) emission designators 400KG1D and 100KG1D (essentially 400kHz and 100kHz phase-modulated single-carrier digital telemetry).
As you know, 2037.5 MHz is the channel edge between channels A1 and A2 in that band. Stations utilizing the upper 6 MHz of channel A1 or the lower 6 MHz of channel A2 during the testing period MIGHT experience some interference, but given the modulation, RF power, and proximity of stations’ 2GHz auxiliary equipment to Wright Patterson, that likelihood is probably small. The modulation is not one TV broadcasters use (read big military secret) and satellite control ground stations usually have their antennas pointing up; however, these are LEO satellites (low earth orbit) and will be moving horizon to horizon, and 14.77dBW into a 35dBi antenna is nearly 100,000 W EIRP. While the satellite(s) should be “well lit,” we don’t know side-lobe/splatter characteristics of the antenna, and stranger things have happened. Hence this head’s up to you.
BTW, we just can’t say “no” to the DoD. The FCC requires us to share this band and play nice, and so we will. However, if your station has a legitimate beef with the proposed activity, by all means let me know, and I’ll be happy to pass it along. Send your concerns to firstname.lastname@example.org.
You can review the coordination request HERE.
You can also read more about this project at https://directory.eoportal.org/web/eoportal/satellite-missions/c-missions/circe.
Lastly, not that I wish to hurry you, I have 10-15 days in which to respond. Thanks.
Russ Hines, SBE33 Frequency Coordinator
Our Next Meeting
The SBE-33 November 2020 meeting will be a virtual Zoom session on Thursday November 19 at 7:00PM EST hosted by Tieline.
The presentation is Remote Broadcasting Connections Trends and Suggestions with some exciting new announcements.
At the end of the presentation, a $50 Amazon gift certificate will be raffled off.
To log in, click on the link below:
An RSVP to Jim Stitt would be appreciated for our SBE sign-in sheet so you get credit for attending the meeting.
Our Last Meetings
Reminder that our SBE-33 October meeting will be conducted at two venues with the same format, one more convenient for Dayton members and the other more convenient for Cincinnati members. These will be held in conjunction with the Next Big Thing traveling road show of outdoor exhibits enabling participants to maintain appropriate social distancing.
The Dayton meeting will be held Tuesday Oct 20th from 11AM – 2PM in the parking lot of Cox Media 1611 South Main Street, in Dayton. Thanks to Randy McCune of WHIO-TV.
The Cincinnati meeting will be the following day, Wednesday Oct 21 from 11AM – 2PM in the parking lot of the VOA Museum 8070 Tylersville Road, West Chester Twp. Thanks to Jack Dominic of the VOA Museum.
There will not be any food served due to Covid19 restrictions. Masks and use of hand sanitizer at VOA are MANDATORY!
An RSVP to Jim Stitt will be appreciated.
News from the SBE
Updated September 3, 2020
The SBE will present the SBE Annual Membership Meeting and National Awards Presentation via the internet at 7:00 p.m. EDT/4:00 p.m. PDT on Wednesday, Sept. 23. Details on how to watch the webcast will be shared via the SBE website, SBE-news email newsletter and social media in the next week.
Interconnecting AoIP Systems – Making It All Work Together, will be presented by Shane Toven, CSRE, CBRE, CBNT on Thursday, September 10 at 2:00 m EDT, this is Module 7 of the SBE AoIP webinar series. Toven is senior broadcast engineer for Educational Media Foundation.
Fiber Optic Cables for HD Broadcast, an SBE webinar, will be presented Sept. 29 at 2:00 pm EDT by Benjamin Nemser, CEO of Nemal Electronics and Daniel Ritts, VP of engineering at Nemal. Register and get more information about both webinars at the SBE website, sbe.org/Education/Webinars page.
ARE YOU A C-BAND SATELLITE USER?
SBE Keeps It’s Eye Open On Spectrum Turbulence
An interesting article posted yesterday on the Radio World website, a perspective regarding the SBE and “spectrum turbulence.” We can’t imagine anything more turbulent than Repack, but as the saying goes, it could always be worse. Click HERE.
How Repack Affects the Operation of Wireless Microphones
A phone call from SBE 33 Vice-Chair Jerry Erwin prompted a little research. Here’s what the FCC says: Operation of Wireless Microphones.
Here is a link to a YouTube video of a presentation titled, “Building the Advanced RF Transmission System at One World Trade Center” that was made October 27, 2017 as a part of the AES Convention in New York City.