Strangely, I didn't see much of a change. I'll ground the antenna and see what happens. I knew that the antenna needed to be grounded but I never put much importance on it and accepted the 2.something VSWR since it is a CB and never gave it much thought ever communicating far in a Jeep group.
The ground is a chassis ground to the radio. The antenna is attached to the Mopar heavy duty spare tire support mounting bracket. The VSWR is about the same on all channels now after tuning it.
This morning I replaced my Cobra 19 DX III CB Radio with a Cobra 25 LTD Classic AM/FM CB Radio. I barely had enough room to install the radio.
I'm using a Firestik II antenna with a quick disconnect spring and the best VSWR I can get is 2.1:1. My forward power is about 1.5 watts. Of course the Jeep is a poor antenna platform.
I am kinda unhappy about that but I kinda expected this with the newer model of CB radios these days and being on a Jeep.
I use GMRS for Trail Comms with my Jeep Clubs and for other highway group travels with the Corvette and Porsche Clubs. I am a member of the Arizona GMRS Repeater Club, Southwest Community Repeater System, Texas GMRS Club, and the Crest Communications GMRS Club.
For my Race Comm, I use the Part 90 Business Radio Service freqs. throughout thd country. This allows me to use the P25 Digital Feature of my radios.
If you are referring to the Shaw Butte Repeater in Phoenix, it has been working fine in both the local and link modes. Are you using a real radio or a CCR POS? I can access the repeater with a real portable radio sitting in my house approx. 25 miles away.
I got my first GMRS license in the early 90s because I like playing with radios. Also, I had a CB Class D license back in the day, a Class 3 Radio Telephone Operators license, a Restricted Operators License, and somewhere I recall having a Marine Endorsement on a license. I wish I kept my original GMRS license active just for the callsign.
Your antenna is the problem, scrap it and don't usd it for GMRS. Try a Midland MXTA 26 GMRS antenna and that should resolve your problem. Another good antenna is a Laird B4502 antenna but it will need to be tuned/trimmed.
And you should have a number for an off-road towing & recovery company for the just-in-case you are within cellular coverage and know what GMRS repeaters that may be nearby.
If you are not in a group while off roading you should be scanning all 8 GMRS simplex channel or at least be monitoring Ch. 16.
I hope the OP doesn't hit the dirt in remote areas by himself (solo vehicle) and get involved in an incident. Also, don't go off-road with just a cheap Chinese POS handheld radio. You should be equipped with a reliable 50 watt mobile GMRS radio with a mobile antenna.
Apparently, the affected system is the NY GMRS Alliaance system and it appears that there is unconfirmed information that the said FCC Notification may be a scam attempt against this GMRS Alliaance.
Hopefully, Randy has his hounds on the trail.
The alleged violation was for being interconnected by "wireline" in violation of 95.1733.a.8. The warning that Randy conveyed didn't mention anything about the "internet". The "wireline" and "internet" systems are totally different media and infrastructures.
One thought on where additional pairs can be reallocated, is mandate Narrowband emissions (2.5 KHz/12.5 KHz) on all GMRS/FRS channels. Regulate all FRS to only .5 watt ERP and allow the existing Interstitial channels be additional main GMRS channels with 50 watts of output power to the antenna. That would provide a total of 15 main GMRS channels without any refarming of spectrum from other radio services.
The FCC dropped the class designations decades ago. They are called Radio Services now and each Radio Service is governed by specific sub parts with in Part 95, Personal Radio Services, such as Subpart B, Family Radio Service; Subpart D, CB Radio Service; Subpart E, General Mobile Radio Service; and Subpart J, Multi-Use Radio Service; etc.
What antenna are you trying to use. The newer Silverados body materials do not have much metal in them.
If you trying to use a mag-mount for a CB Firestik antenna, forget it it won't work. A K40 with the heavy duty mag-mount base will work great.
If you are trying to use a mag-mount for a GMRS antenna, the Midland or Laird Mag-mounts will work great. The Midlands have the rubber boots and Laird do not.
Try using some Expel Paint Protection Film in the spot where you're go8ng to place the antenna. The film will keep the mag-mount from sliding and not cloud the paint if moisture gets between the two surfaces.
I'm using the protection film on my Silverado and Porsche without any problems
Become a member of the Arizona GMRS Repeater Club at az.gmrs.org. Besides having access to their linked repeaters, the Club has Ambassadors that help new members with their radio equipment and programming needs.
Saddleback was never referred to as Saddleback Peak. Saddleback is a Mountain and Santiago Peak is a Peak within the Saddleback Mountain known as "Old Saddleback" within the Santa Ana Mountains. Saddleback Mountain has two Peaks, Santiago and Mojeska. Old Saddleback gots it's name from the profile of the Crestline between the two peaks as you look from a distance and it resembled a saddle.