What kind of radio shuts down on transmit?

Radio shuts down on transmit Discussion in ‘ Antennas, Feedlines, Towers & Rotors ‘ started by KE8AMR, Mar 11, 2015 . Not open for further replies. I recently got my ticket. I picked up a Yeasu FT-991 radio, Yeasu FP-1030A power supply and a Comet GP-3 2M/70cm antenna.

Why is my radio signal losing so much strength?

If you have an external aerial, a radio signal will always lose some of its strength as it passes along the cable and through the connectors. It is important to minimise the loss by using good quality cable and connectors.

Why do I lose one radio station in a multiplex?

If all other stations are working ok and you have just lost one station. The problem could be due to a number of reasons, the station may have stopped broadcasting or have moved multiplexes rather than a radio fault. All of the stations in one multiplex should be behaving the same way.

What to do if your radio reception is poor?

If your radio reception is poor then you could consider an external aerial for best reception quality. Even in good areas an external aerial will guarantee optimum performance and will also ensure consistent listening quality.

When was the low power television service created?

Low Power Television (LPTV) Service. The FCC created the Low-Power Television (LPTV) service in 1982 to provide opportunities for locally-oriented television service in small communities. These communities may be in rural areas or individual communities within larger urban areas.

When did full power TV stations stop broadcasting?

Although Congress established a deadline of June 12, 2009, for full-power TV stations to cease analog broadcasts and begin operating only in digital, and the FCC set a transition date of Sept. 1, 2015, for Class A television stations to complete their transition, neither deadline applied to LPTV/translator stations.

How are LPTV stations different from full power stations?

LPTV/translator stations have “secondary spectrum priority” to full-service stations. This means LPTV/translator stations must not cause interference to the reception of existing or future full-power television stations, must accept interference from full power stations, and must yield to new full power stations where interference occurs.

What is the status of stack power port shutdown?

Status of stack-power was SP-PS, whatever that means. I gather the PS part means Power Sharing. I had to issue the command “no standalone” in each switches power-stack config mode, fix the stack ring to use 3 switches each and issue “stack-power switch x port y enable” on the two shut ports.

Why are there no power ports in the stack?

All the switches were standalone after customer connected 6 switches into a power stack. Seems the switches disabled 2 of the ports in the stack to create 2 separate rings. But in the end all the switches were standalone mode. In this mode for some reason the was no available POE power even with 2 715W power supplies.

Why does my Comet shut down on transmit?

I can’t see the SWR since the screen cuts out immediately but I doubt a high SWR would cause the screen to cut out but allow the transmitter to continue to transmit because the radio has the ability to shut off the transmitter and display a “high SWR” message. Also the comet really isn’t tuneable and should have an SWR under 1.5 on 2M.

What does it mean when your car radio stops working?

If your car radio stops working intermittently, in that you lose sound, but the head unit clearly doesn’t lose power, then you’re dealing with a different issue. In this type of situation, it’s very likely that the head unit is still working, but there is some kind of intermittent break between it and the speakers.

Why does my music stop when I Turn Off my Radio?

If the display shuts off at the same time the music cuts out, then the unit is probably losing power. Tracking down the fault can be difficult when the radio is functioning since it actually has power at that time. The problem is often in the speaker wiring.

What should I do if my car radio cut out?

With the car radio on, tap on the interior of the door with your fist. If the radio cuts in or out, suspect a loose or crimped wire. There is always a chance that you’re dealing with an internal fault in the head unit, in which case the only way to fix the problem is by replacing your car stereo.

Why is my CD player not working on my Radio?

When you observe that your CD player is working properly, but the radio isn’t working, the problem is with either the tuner or the antenna. When the antenna gets damaged, it means that the radio is not getting proper signals from the stations.

Why does my led turn off after a few seconds?

Once a few seconds pass by, the capacitor is able to charge up. As it charges up to greater than 2/3 of the supply voltage, then the output goes LOW. This is why the LED eventually shuts off. It’s when the capacitor charges to 2/3 of the supply voltage. Once the threshold reaches this voltage, then the pin is HIGH.

What causes low voltage on circuit after breaker turned off?

I’ve also read about “backfed voltages” that are a result of equipment on the circuit (I know some motion sensor light have capictors in them..) or are the result of other circuits. Since the low voltage disappears when I turn off some of the other circuits, I’m still left questioning what the culprit is…and if I need to be worried at all?

How does a delay before Turn Off circuit work?

The bigger the resistor and capacitor value, the longer the delay. So if you want to increase the time of the delay, you would choose a bigger resistor and capacitor. If you want to shorten the time of the delay, you would choose a smaller resistor and capacitor value. And this is how a delay before turn off circuit works with a 555 timer.

Why does my radio turn on then shut off?

Until recently when the ignition was … read more stereo wont work but my fuses are good…. changed out speakers and the stereo worked but then suddenly shut off midway through a song. So i checked the fuses on car and stereo all was good, still did … read more

Why does my Sirius Satellite Radio keep cutting out?

There may be a break, weak point, or loose connection in the wiring between the SiriusXM antenna and the tuner. Or there could be the same issues in the wiring between the tuner and your stereo. This can affect the sound quality and it may cause the radio to cut out often.

What happens when you key the mic on a yeasu radio?

When I key the mic the display on the radio goes off although the radio keeps transmitting. When I release the ptt the display comes back on with the power-on Yeasu logo as if I had just turned the radio on.

Why does my radio keep switching on and off?

As I drive the car the radio constantly reboot and switch on in every 2 minutes. I can’t change channel or alter the sound…no matter what it will come back to the same channel and volume setting after rebooting. Why is this happening?

When does the remote keyless entry shut off?

If the vehicle is left in P (Park) while running and the Remote Keyless Entry (RKE) transmitter is outside the vehicle, the vehicle will turn off after one hour. If the vehicle is left in P (Park) while running and the RKE transmitter is inside, the vehicle will run for two hours.

What happens when you key the mic on a radio?

The radio recieves great. Much better than my HT. When I key the mic the display on the radio goes off although the radio keeps transmitting. When I release the ptt the display comes back on with the power-on Yeasu logo as if I had just turned the radio on.

What to do if your car radio keeps switching on?

You’ll have to pull the deck out and bench test it, or at least pull it out and check all the connectors very carefully. The “jiggle test is one way–by jiggling various wires with the deck plugged in–if you can duplicate the problem this way, then you know you have a wiring or connector problem.

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