SteveShannon

Probably you have the wrong tone or frequency. 1. Are you listening to a repeater? Then you need to transmit on a repeater input frequency which is 5 MHz higher than the output frequency. 2. If you have the frequency correct and they still don’t hear you then you probably have the input tone incorrect.

That’s true; the antenna still must be able to radiate at the correct frequency.

So, are you experiencing this issue with zero output when you’re trying to transmit on 325 MHz? What about when you try to transmit on other frequencies: 2 meter, 70 cm, or GMRS frequencies?

SWR in a handheld antenna is nearly meaningless because there’s no transmission line. All the power still exits the antenna. In an antenna system, a portion of power is converted to heat within the transmission line between the transmitter and the antenna. High SWR results in power reflecting and traveling back through the transmission line to the radio where it reflects again and incurs more losses before it gets back to the antenna. Each time more power goes out the antenna until all of the power has either been converted to heat in the transmission line or RF radiation in the antenna. In a system with virtually no transmission line virtually none of the power becomes heat. For that reason handheld radios (including cell phones) have virtually no transmission lines and so SWR has very little importance.

The difference in range between the least expensive Baofeng handheld radio and the most expensive Wouxun is zero.

I suggest spending some time reading posts here. The 905g has a very good reputation, but it’s also more expensive than many others. As far as Wouxun being the best brand I think that’s fairly subjective.

I am not sure how it works but postings in some, but not all of the clubs show up in my Unread queries, but because I don’t belong to the clubs I can’t “read” the posts and they remain in my unread results unless I click on mark all as read.

Even if it had tones the risk of interference doesn’t decrease. It should be on a different frequency. Are there any open frequencies of the eight used for repeaters?

Yes it will, but the FM signals may still interfere with each other. With AM it’s possible to actually listen to two signal on the same frequency. With FM the radio attempts to capture the strongest signal. The tone doesn’t prevent that because the tone has no effect on reception, just reproduction.

You’ll catch on. Welcome!

A repeater is a station.

Whatever surge suppressor has the correct connections that match your heliax and coax. Typically you want the surge suppressor as close as possible to where the feedline enters your house. This is a good concise guide to the requirements: https://reeve.com/Documents/Articles Papers/Reeve_AntennaSystemGroundingRequirements.pdf

Welcome! Only you can answer those questions. Things to consider: whom do you want to talk to? Have you heard them on the radio? For myself I wouldn’t put an antenna on the house unless I was certain there were people who I would be talking to. Spend some time with the radio and see what you’re lacking before spending money.

Because it’s a GMRS radio you may only transmit on predefined GMRS channels. As I recall from previous threads Baofeng enforces that by preventing transmissions while in vfo mode. Edited to add: the manual shows that the 22 GMRS channels and 8 GMRS repeater channels are modifiable and RX and TX capable, but they specify that the RF ranges are receive channels. Nothing in the manual indicates that you can transmit in VFO mode.

The frequency limits in his picture were obviously not the problem. People here would need a lot more information to understand what your problem might be. Something showing how you have it programmed in the 935G would help.

Using the wrong port is the most common error. Unplug the radio and start Device Manager. Then, while watching the list of ports to see what new ones are created, plug the radio in. That’s the correct port. If a port isn’t created make sure you have the correct driver installed. If the software has settings for baud rate etc, make sure they match the settings in Device Manager.

Don’t worry about it. Someone will always have an opinion about how you should word something. I’ve done it myself. Just be yourself.

The FCC regulations define 22 specific frequencies with power and bandwidth limits as numbered channels for FRS. The FCC regulations also establish limits on those same 22 frequencies for GMRS and add eight more for transmitting to repeaters. Read the regulations. Then consult the manuals for your radios to see how the manufacturers refer to them.

So do most people!

Exactly right. Buying a radio and putting it away in case you need it someday is no smarter than buying a gun and failing to learn how to use it.

I have no idea what that sound may be, but a couple people have experienced something similar in the Radioddity db20g. Do you think the problem is with the repeater or your radio? Do you have receive tones (CTCSS or DCS) set in the UV25?

Just for the sake of correctness. It is not + .5 MHz ; it’s + 5.0 MHz. That’s a big difference. Some repeaters continue to transmit for a short period of time after a person lets up on the PTT. You might be hearing that.

Same mast. No fancy calculations needed, just increase the distance if you detect interference.

Hi Frank, What is your call sign? Sometimes it takes a few days, but I have also seen where people read and input their call sign incorrectly and go for weeks or even months before figuring it out. All GMRS call signs issued in the past several years are four letters followed by three numbers: waaa000 to wzzz999. One person had a call sign that ended in I776 and he kept trying to enter it as 1776, not i776, getting more and more frustrated when the system failed to recognize it in spite of the amount of time since issuance. Most people using GMRS do so to have family communications while doing family activities. That’s what the licensing favors, but there’s nothing wrong with random contacts with people you introduce yourself to online. As you have seen a few people get their panties in a wad over that. Ignoring them is easiest.

Antenna physics are fascinating but I’ve just barely started learning. Every so often I receive an inch thick densely printed periodical called Proceedings of the IEEE Antennas and Propagation Society. Most of it is so far over my head that it’s indecipherable. The majority of it deals with microwave and higher frequencies up to around 10-11 gigahertz. Almost none of it is written for the frequencies of ham radio, although recently a couple of ELF articles appeared. I struggle to even skim through it. I mean it’s so far over my head that I don’t even know where to start, but there are people who actually understand this stuff!