microWeb-RX : FM RECEIVER WITH INTEGRATED WEB SERVER
This very low-cost receiver with embedded internet server is intended to be installed at transmitter sites, where it can remain
operational. Engineers or Station Managers based beyond the radio station's service area can then log-in via the internet to view
audio, RDS, and RF strength parameters.
Applications:
- Broadcast Engineers can check parameters from beyond the transmission area
- Radio Stations can see their RDS content and FM levels from anywhere in the world
- Multiple FM site monitoring from one central location, using very low cost receivers
Features:
- Shows more RDS data than standard FM receivers
- Fast, real-time RadioTEXT updates
- Monitor loudness/deviation level
- Check for broadcast authority compliance
- See TP traffic mode and instant TA switching
- Signal strength to check transmitter output
- Integrated embedded web server - no computer required
- Remotely tune to other local FM services
- No App or software required - uses web browser
- Page layout optimised for mobile smartphone devices
- Very Hi-Q antenna input matching and filtering circuit
Description:
The microWeb-RX is an FM receiver is based on the renowned TEF6686 chip from NXP, and has a TCP/IP Internet Webserver.
FM broadcast engineers and radio station managers can check the transmission parameters of their remote broadcast site, proving
particularly handy for those based outside of the transmission area. In fact, you can access it from anywhere in the world.
Simply connect it to the internet router at the transmitter site and leave it operating. Thanks to its very low cost, identical
receivers can be deployed at multiple sites.
For example, when faults are incorrectly reported, engineers - who would normally travel to perform maintenance - can prevent such
wasted time and cost, simply by logging-in and remotely checking the broadcast parameters.
Whilst a lot of similar information can often be accessed by logging-in to each web portal of the various pieces of equipment
used in the transmission chain, this receiver, on the other hand, shows the actual transmitted content and levels, all combined
into a single web page.
Some homebrew and open-source designs, based around the TEF6686 receiver chip, already exist. However, these are aimed at DX radio
enthusiasts and require connection – via USB – to specific software running on a PC. Therefore, in order to provide the same
‘always available’ internet connectivity, a constantly operating host computer would be essential. However, thanks to the
microWeb-RX’s embedded hardware web server, no computer is required, and reliable long-term operation is assured - without the
worry of remote computer updates and failures.
In addition to the usual Station Name and RadioTEXT displayed on normal FM radios, the microWeb-RX also displays the RDS PI Code,
the TP flag status, the TA flag status, the AF list, the Mono/Stereo Decoder setting, and the Music/Speech setting.
Additionally, deviation (modulation) levels are shown via a familiar bar-graph style display, with >75kHz being indicated by the
red (over-deviation) portion. Although the audio content itself is not encoded and sent over the internet, this still provides an
easy way to check if audio content is reaching the transmitter and is, moreover, actually being broadcast.
Likewise, by using the FM signal level information, it's possible to assess the transmitter's radiated power. If reported to be
lower than usual, it might indicate reduced transmitter output power (fault mode), or perhaps even complete RF output failure.
It's possible to remotely tune to other received services, for checks or comparison.
