| Home |
| RTE Page |
| RTE/FXO Page |
| Wattmeter Watchers Page |
| A2T Audio Card Page |
RTE_FXO Internet Radio Controller
Complete Remote Control Including Audio
CI-V units have been sold out and will not be replaced but RS-232 models may be used for ICOM with the standard CI-V to RS-232 adapters. CLICK HERE for special pricing on the remaining available RS232 units. Allow 2-3 weeks for delivery.
The RTE/FXO unit is a combination of both Glentek control boards: the basic RTE controller and a telco audio interface board, the A2T.
Self contained and packaged, the RTE/FXO is all you need for complete Radio control over the internet and audio via a phone line or user-supplied ATA (analog telephone adapter for Internet audio connection).
See the individual RTE and A2T description sheets for more information.
Here's an inside peek at how the two units go together. 5 conections
1) Speaker output from the radio
2) Microphone input to the radio
3) Data connection (CI-V or RS-232)
4) FXO (telephone) jack for audio
5) 12Vdc at 200mA
A COMPLETE Internet radio remote control setup:


Travelling HAM RTE/FXO controlled station w/audio back home (phone line required)
not shown: routers providing internet access and VoIP ATA (optional wireline) connection for audio. 
Or operate at home from anywhere in the house:

5 Connections to be made:
2 to the radio: Speaker output and Microphone Input
1 Ethernet connection to your router (CAT5e or CAT6 cable required, not supplied)
1 connection to your Internet ATA or POTS telephone line (aka FXO jack).
1 connection to 12v DC
IMPORTANT NOTE ABOUT AUDIO RETURN: The RTE/FXO (and the enclosed A2T card) is set up to receive incoming calls from a remote location via wireline or Internet phone line. It uses the phone line to send and receive audio. Why not just VoIP?
- Wireline all but eliminates the VoIP induced latency (also known as delay). High latency VoIP to VoIP connections may be measured in SECONDS. So called "low latency" connections may be 500mS or so. When timing and speed is of concern (e.g., contesting, DXing, etc.) even 500mS may seem like an eternity.
- Internet Service Providers (ISPs) want to sell you their own VoIP telephone service. Some are already intercepting VoIP traffic that is not their own. This trend may expand in the future and connections using VoIP may not work in the future without paying extra monthly charges to the ISP.
- There are no echoes so echo cancellation algorithms are not necessary. Echo cancellation can sound a lot like VOX control cutting off first syllables of words.
- VoIP systems add compression algorithms, noise blanking and other audio processing that cannot be controlled or turned off. Wireline connections maximize realism and minimize distortions important for small signal work.
- Accessing your audio link via Skype adds some latency, but far less than half of a VoIP to VoIP connection. Skype employs professionals who know how to work aroung and with ISPs. Let them fight the battles.
- You are not "tethered" with a remote box to lug around. The remote box needs a PHYSICAL ethernet connection that you will not find in most hotel rooms, parks, or Starbucks. The RTE/FXO system is fully compatible with WIFI on the operating end. Operate your station from the patio via WIFI even at home. Can you do that with other systems?
- No expensive cables to cut and hack.
- If you don't have or don't want a wireline phone, it's easy to add an Internet-derived phone line that will work with the RTE/FXO. SIP to SIP calls are free and a system may be set up for as little as $30 with no monthly fees. No need to spend hundreds of dollars more. But remember that the RTE/FXO will not interfere with your normal telephone use since it WILL NOT ANSWER A CALL UNLESS YOU ARE USING YOUR RADIO. No need to have a "dedicated" line.
Contact