Field Report: Belar FMHD-1
Measurement data can be accessed from the front panel, or, you can put it on a remote network and access it via IP, as I did. If you are in front of it, you'll control it completely with the rotary wheel; in that case you can also use the rotary wheel to access the popup menu to change certain settings in the unit. These include RF input selection, the composite bandwidth filtering, spectrum analyzer settings, and finally other configuration settings such as the IP address of the unit, and the sources that feed the various audio outputs (such as the headphone out).
Most useful features
As someone who deals with IBOC transmissions every day, I want to emphasize the features of the FMHD-1 that I feel are most useful. I installed the unit at the top of our building in New York, fed by an antenna that is 560' above the ground, looking right at the Empire State Building.
You need to install WizWin on a computer so you can access the unit over an IP network. There is a small configuration associated with that. Afterward you have access to all the measurement data the unit generates. The first page view you will likely view is the basic one that shows the frequency, whether or not you are actually transmitting IBOC, and what streams are available. You can rapidly read the SIS and PSD associated with all the IBOC streams you are transmitting. One parameter that has to be checked on a regular basis is the analog vs. digital delay sync.
-- continued on page 3
Acceptable Use Policy blog comments powered by Disqus
[an error occurred while processing this directive]
Today in Radio History
The history of radio broadcasting extends beyond the work of a few famous inventors.
Read each issue online in our Digital Edition Format in your Web browser.
EAS Information More on EAS
The feed provides feeds for all US states and territories.
Need a calendar for your computer desktop? Use one of ours.
Information from manufacturers and associations about industry news, products, technology and business announcements.
Browse Back Issues[an error occurred while processing this directive]
Also in the November Issue
- Trends in Technology: HD Radio Transmission Update
- Franken FM Stations
- Wi-Fi on Wheels: The Connected Car
- Field Report: Yamaha MG10XU
- Transmitter Site Cleanup