RF FAQ

I am using a non BE exciter with my FM-T TX and can't get the interlock functioning. What's wrong?
The BE exciter has a Frequency Lock (AFC) output connection that goes low when the exciter is locked on frequency. If the OEM exciter does not have this fea...
Tue, 8 Oct, 2019 at 10:48 AM
I have a flashing or dead front panel on my “C” series transmitter, what can I check?
Most likely the problem is the Controller power supply. Disconnect the J704 wire cable on the Controller board and with basic AC power applied to the transm...
Tue, 8 Oct, 2019 at 10:51 AM
I have a missing +20V indicator on my FX 50 Exciter, what could be the problem?
On the power supply/control board, measure TP5 for +20VDC.  If TP5 is not +20VDC, then U1 LM338 Positive Voltage Regulator (part number 227-0339) on RF Amp ...
Tue, 8 Oct, 2019 at 10:54 AM
I have a missing +20V LED indicator on the front of my FM 100C Exciter, what is damaged?
Most likely the U402 voltage regulator (part number 227-0339) is faulted. This can be checked by measuring TP5 on the PS Control board. If +20V's is pr...
Tue, 8 Oct, 2019 at 10:55 AM
I rebooted my FSi, XPi or ASi with the wrong boot disk. What do I do now?
If your unit was loaded with the wrong software, there may be a chance that it is in a continual reboot cycle now.  If that is the case, please view and sav...
Tue, 8 Oct, 2019 at 10:56 AM
My AM TX won't power up and the 3 green LED's (DS1-3) on the Exciter are extinguished. What's wrong?
The most probable cause is a failure of the ECU Power Supply (P/N 540-0006).
Tue, 8 Oct, 2019 at 10:02 AM
My FXi Exciter GUI is extinguished and the fan is off, but the Green Power Led is lit. What's wrong?
Check all the fuses on the 919-0540 Power Supply Board. If all are ok, contact BE RF Technical Services to arrange for a replacement or to have yours repair...
Tue, 8 Oct, 2019 at 11:03 AM
My HD generator has went non-operational. What do the error codes mean?
The error codes are somewhat cryptic, but with the assistance of a BE RF Technical Services Engineer, we can assist you in finding the root cause. The codes...
Tue, 8 Oct, 2019 at 11:05 AM
My HD Radio Receiver is impaired and not working correctly; what could be wrong?
iBiquity Digital has determined that the “short” P3 Interlever can impair the operation of several types of radio receivers and that Exciters should be oper...
Tue, 8 Oct, 2019 at 11:07 AM
Should I install an AC surge suppressor for my new BE transmitter?
Yes, it is mandatory that an AC Surge Suppressor be installed at the Service Entrance for AM and FM Transmitters to ensure that they are protected from Volt...
Tue, 8 Oct, 2019 at 10:05 AM