Insti
18.05.2021 14:52:28
A: Read the radio, go to optional setting---other and select Amateur Mode here: more
See full version: AnyTone AT-D878UV FAQ
A: Read the radio, go to optional setting---other and select Amateur Mode here: more
1) turn off the radio, and turn back on while holding the PTT and Number 1 key on the Keypad (NOT the P1 button).
2) when the screen says "TEST MODE" release the buttons and then the screen will show "MODE 0010". Rotate the Channel Knob counter clockwise to set it to "MODE 0000".
Q: What is this "roaming" feature? here
Had this on my iCom. I think, but can remember 100%, that it is something to do with ceramic filters. here
My question is, does this indicate there is a problem with the aerial, or is it to be expected? If it indicates there is a problem, is my experience of being able to transmit but not receive consistent with the problem? I haven’t been up the mast to check the wiring at the aerial end (that will have to wait to the end of the season when the mast is de-stepped) but the nav lights don’t work either so I expect the wiring in the mast to be in a poor condition and it may be that the aerial has suffered a similar lack of maintenance in previous ownership. The VHF radio is reasonably new, which doesn’t mean it can’t be faulty, but my first suspicions are on the aerial.
I disconnected the aerial from the VHF and measured the resistance between the outer metal knurled connector ring (which I believe is connected to the cable shield) and the inner connector and it was approximately 1,000 kilo ohms. My knowledge of electronics is not good. I expected there to be infinite resistance between the shield and the inner core. I know 1,000 kilo ohms is a lot, but its not infinite.
I disconnected the aerial from the VHF and measured the resistance between the outer metal knurled connector ring (which I believe is connected to the cable shield) and the inner connector and it was approximately 1,000 kilo ohms. My knowledge of electronics is not good. I expected there to be infinite resistance between the shield and the inner core. I know 1,000 kilo ohms is a lot, but its not infinite.
The VHF on my recently acquired Seamaster 23 yacht doesn’t work. It will transmit OK but won’t receive anything. It was on for 8 hours while we were sailing in the Rivers Orwell and Stour and in that time it didn’t receive a single transmission on channel 16. I subsequently tested it using my hand-held VHF and established that it transmits OK but doesn’t pick up transmissions from the hand-held. The speaker will hiss if the squelch isn’t adjusted correctly (so the speaker is working) and on several occasions it went “beep-beep-beep”, but never any speech.
At this point, you should be ready to try accessing the repeater. After listening on frequency for a minute, transmit and identify using your callsign. On most repeaters, you will hear a short transmission coming back from the repeater along with a courtesy beep. A courtesy beep is just a short audio tone or tone sequence that occurs after someone finishes transmitting. If you hear the beep, then you accessed the repeater. Congratulations! Go ahead and make a call and see if someone will come back to you. more
First, you can check to make sure your radio is receiving properly. In the US, a good way to do this is to tune into your local NOAA weather transmitter.These transmitters are on the air continuously, operating on 162.400, 162.425, 162.450, 162.475, 162.500, 162.525 or 162.550 MHz. These frequencies are outside of the 2m ham band but most ham transceivers are able to listen to these frequencies. You’ll want to set this frequency as simply as possible…use the keypad or VFO mode to enter it directly. In most cases, you can just try the short list of frequencies until you hear the transmitter in your area. [links]
Offset – Next, we need to make sure the proper transmit offset is programmed into the radio. This is the difference in frequency between the repeater transmit frequency and its receive frequency. Your transceiver will automatically shift your frequency when you transmit, if you have the right offset programmed. In most parts of the US, the standard offset is 600 kHz on the 2m band and 5 MHz on the 70cm band, and can be either in the positive (+) or negative (-) direction. Your repeater directory will list the offset and direction. Most radios will default to the standard offset but you may have to select + or – offset. Usually a + or – symbol will appear in the display to indicate the offset selected.
Tone – For most repeaters, you will need to transmit a CTCSS tone to access the repeater. (CTCSS is Continuous Tone Coded Squelch System.) Repeaters with carrier access do not require a tone, so you can skip this step. This is normally a two-step process: set the tone frequency and then enable the tone. Sometimes this is done with one selection (with “Off” being an option for the tone frequency). Some radios have separate settings for the transmit tone and receive tone. For now, just leave the receive tone off, since it can be a source of confusion. The tone that you need to set is your transmit tone. Most radios display a “T” somewhere on the display when the tone is enabled. Again, check your operating manual. more
I met up with a mate tried a radio check and couldn't hear him at all but he could hear me more
I am receiving his signal according to the led indicator but there is no sound. (Yes volume is max) [links]
I have a Oricom UHF 058 that Im having some issues with.
It was transmitting and receiving fine on the way up the coast yesterday as I was listening to 40. more