SteveShannon

No, we don’t say you’re lying about that; we tell you you’re a jerk when you imply that anyone who doesn’t get 200 miles is incompetent and when you scold new members about not reading the rules. As you say: it’s all about line of sight.

Welcome to new member @qxovrix!

As you have acknowledged data transmissions over a repeater are prohibited, but a very short burst of data would probably never be noticed. However, given the limited bandwidth of FM over a repeater very little data could be transmitted. Also, there are only a few radios that send data anyway.

Because the regulations prohibit certifying a GMRS radio that can easily transmit on ham frequencies.

Exactly! When the base of the antenna is getting warm, it’s being heated mechanically (thermal conduction) by the RF output transistor which must be much warmer. I would be more concerned about that than the antenna. Twice the power requires four times as much current. There’s very seldom any range advantage to merely doubling power for UHF.

There are no USA made GMRS certified radios. There are commercial radios, certified part 90, and ham radios, which don’t require certification beyond part 15, made in countries more friendly to the U.S.A. which can be programmed to transmit and receive on GMRS frequencies. Garmin GMRS radios are made in Taiwan. They are probably the most expensive GMRS certified radios available.

Are you asking about the frequency of interference (RF) or the frequency of the light produced (which must include multiple wavelengths in order to be white)?

I assume that’s a typo?

They need a banana for scale?

Well, that’s one of his problems.

A friend of mine did some testing, including using an external microphone so he could measure the effect of the tiger tail unaffected by coupling with his body. He actually felt that his radio worked better without the wire. I have never tried it.

Don’t feel like you need to go away. We like to argue minutiae.

No need to feel sorry. The guy that jumped you about it is a grade A dick. Fortunately the forum software gives us the ability to filter out his posts.

Ask the owner, look in the database or on the map here, scan the tone of someone’s input transmission, or assume it’s the same as the output tone and scan that.

Ress?

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!