AdmiralCochrane

I'm confused. The antenna was tuned and was garbage?

KAIX3715

I didn't mention that I may do the same with my own 220Mhz antenna in addition to a separate GMRS antenna. Right now I'm running a Comet triband that's probably not too far off for GMRS and have a separate 220Mhz J-Pole on its own (shorter) mast. Time to buy more coax!

That's the only thing that makes me envious of the 15 story building at the top of my line of sight facing north. If we had a repeater up there, it would be golden

Yes, the software is open, its not licensed.

So, with my back to a body of water where I do not expect significant GMRS use, I could offset a bracket 17 or 18 cm off my VHF antenna mast and mount a GMRS antenna on the side away from the water and probably get acceptible performance (at least according to theory) ...

I've met several 12 year old Techs. She should be able to study and pass the test now.

And all over eBay as well. The advertising is getting outrageous - magically some now transmit 60 miles

Sort of like asking NTSB and EPA to simultaneously certify a vehicle as a Diesel dump truck and a gasoline motorcycle

Radio waves in GMRS band are public domain, but hardware is not. There is nothing more to it, repeaters are personally owned hardware. I do not expect to use someone else's radio just because I know where it is and how it works.

There is a good chance that GMRS may not work for this application, regradless of how much power unless both are on the highest rooftops without taller buildings in between. Rooftop to rooftop would work like a dream, ground to ground with tall buildings between reduces the chances of success.

GMRS is used the way the FCC generally intended: between 2 users that know each other and plan in advance to communicate. Its different from ham radio.

Welcome

The assertion that there is equipment that licensed hams cannot use to transmit on ham bands within their licensure is just silly lack of reading comprehension by both the FCC and the public. ARRL has been trying to convince the FCC of this technical mistake in the 2018 advisory about Baofengs for 2 years. Pointless debate will exist forever, much like some of the ATF regulation confusion that has been raging for decades.

Excellent news. You may be correct about the repeater

Not a matter of courtesy/custom, more than likely, there is no one close enough to hear your signal at the moment you send

People need to see comparisons to understand. Can you show us a Japanese radio as well?

Select, copy, paste. Thanks G!

Yeah, if he is very close to one of the Galveston TV transmitters or police/ems or private com towers, the interference becomes likely. In my area we have occaisional harmonic problems

I was approximately 1km from the base. I did notice greater desense of the AM signal about twice as far away, but nothing 3 times as far or farther. My real question isn't about the scientific measurement, but about the practical application. Theory is great, but when it lacks in the real world, its use diminishes.

Messaged you about the Kenwood TH-F6a

gman, can you explain this to me? This morning I had the opportunity to park adjacent to the local RF firebreathing angry 1000 foot towers, actually 2 of them adjacent to each other. One hosts multiple local PD transmitters, business transmitters and I know not what else. the other has the local UHF TV on top. Close enough that my vehicle's AM radio desensed. Obvious signal suppression. Both my CCR and my Icom 880H functioned with the same reception clarity. What did I do wrong in this experiment?

I can't recall the exact language, but isn't there an exception for hams selling their personal equipment along the lines of the conversation being directly related to operation of ham radios? That and ARRL employees may transmit as a course of their employment; I think that is an artifact from the time when ARRL was the only training and testing agency.

The problem is our free open society where each individual is expected to abide by the rules/laws. As such, at least at the present, for individuals, OWNING or MAKING an all band transceiver or transmitter is legal, the crime is transmitting on a frequency which you are not licensed to use or in the restricted bands, transmitting with non-type approved transmitters. A second problem comes with enforcement, foxhunting a transmitter is not difficult, but actually witnessing illegal transmitting could become harder on the FCC if someone appeals it high enough. In my mind it might be part of the reason for lax enforcement

When the radios were physically limited and you had to take them apart and physically remove a blocking diode it was clear that the manufacturer had actually manufactured the radio in compliance. Compliant firmware is a major shortcut and shortcoming.