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If there was no squelch any channel without a tone would stay open. Then scan would be useless. Again it is probably the s9.. turn it down to s1 and see if the frequency stays open. EDIT: Just saw a clip on the 575.. squelch only shows s9. Then you can set squelch. Maybe the new 275s have newer firmware that mimic the 575. 6min 20 seconds in. Sent from my SM-S901U using Tapatalk

Don't have the radio. But I am going to infer that "s9" = squelch is set to 9 out of 10. Hopefully, someone with the radio can confirm. Sent from my SM-S901U using Tapatalk

Aliexpress and one other store are the official ones if that matters. Sent from my SM-S901U using Tapatalk

Have you thought about hatch or hood mounts. Or the wanna be... high clearance bumper with antenna mounts.... Sent from my SM-S901U using Tapatalk

That laird is pretty short antenna, is it any of it viewable above the basket? If anything the basket is probably causing some screwy swr and radiation patterns. Hence, why I have been eyeballing low profile flat racks or just ditching my roof rack on the landcruiser. From some anecdotal, both by the butt meter and nano vna, testing I did with 1/4 waves and such even when I had a z71 suburban, the big boy roof rack played havoc on shorter antennas. If they are mag mounts try to keep about 6-10 of roof underneath the antenna and recheck swr. Then bring it closer to the roof rack you should also try making contacts. The roof rack or other accesories close by will give you grief. If you can clear these obstacles you probably will get better performance. One landcruiser, owner on expedition portal had a rack made. Company became prinsu, but either case he had it made with ears on the back that were also a bit folded. To mount two 1/4 wave antennas. What he failed to mention is that he had to strap (ground straps) parts of the rack to the interior roof to main continuity between the rack and roof (improving his ground plane). The ground plane size and shape can and will affect performance. In your case I don't think it is a ground plane issue, but more helps to a degree. I believe you are seeing these results due to where the antennas sit in relation to the basket. I also think you should mount them to the hood and double check swr numbers to make sure all is good. Another note paint types for antennas are really going to matter on the active element more than the ground plane. Sent from my SM-S901U using Tapatalk

It means the repeater is for REACT members or they are the primary users of said repeater. Radio Emergency Associated Communications Team. Here is a link to a local REACT group near me. In my county they use CERT teams. https://www.howardcountyreact.org/]https://www.howardcountyreact.org/[/url https://montgomerycert.org/] Sent from my SM-S901U using Tapatalk

Do you guys have a business radio license, much less really need dmr? I imagining yes, since it is a security team you guys probably also want encryption, which is legal with the business radio license. This radio unfortunately does not have encryption that I can see, so nix that comment. Being kenwoods they are probably pretty decent. Maybe lscott can chime in since he is a kenwood fan. Sent from my SM-S901U using Tapatalk

You got a pm. Sent from my SM-S901U using Tapatalk

NX-5600HB Is that the one that was for the CHP? I thought California patrol pulled out of that and Kenwood nixed the project. Sent from my SM-S901U using Tapatalk

Thank you. But beyond my current knowledge scope. I have a few guys looking at options. So if we figure it out, I will pass it on. Unfortunately, there are no p25 low vhf band options. Sent from my SM-S901U using Tapatalk

Tell me if you find a suitable amp.. since that .09 watts of output make it pretty difficult. Sent from my SM-S901U using Tapatalk

I haven't had to. But regularly follow AARL wilderness protocols when out in the woods. Especially, around George Washington National Park in Wva. Dad lives close by and if you aren't right by a town, you often don't have cell service. Really wish all radios followed NEMEA standards for GPS data. Sent from my SM-S901U using Tapatalk

Depending on where in Florida, you are going to have good to incredible GMRS repeater service. Personally, I would be looking at no less then a dual bander with dual recieve radios. The 578 like the 878 are a dual recieve but only have one true transmitter. Which may effect how you would use it. I haven't seen away to unlock the 1000g to do anything but recieve on 2m. Although the amateur version of the radio, I have seen a software/firmware hack opening up the GMRS frequencies. The second problem becomes the antenna, since most dual band/triband radios do a crappy job of trying to do both GMRS and 2m. One of the two has crappy performance, although sometimes JUST acceptable. Sent from my SM-S901U using Tapatalk

Which service are you going to use more? Not that I cadone it, but it is much easier to open GMRS frequencies then the other way around on most radios. Ie CAP modding a ham radio. Especially, if you are positive you are going to get your ticket again. It's about a 1000x (times) easier now a days since the cw requirement is gone now. Hell might as well get your general. 578 will be great if you are going to get into DMR. They have new model comming out that is essentially a 578 brick where you can option out the blue tooth mic. Personally, running a FTM400XDR and a Motorola XTL 5000 (UHF). The XTL5K, is going to be replaced with a Harris 100m. So I can retain Gmrs/p25 capabilities on one radio and 2m/70cm with aprs on the other radio. The only real things the Harris brings over the XTL, is VHF and 700/800. The low band VHF amplifier is impossible to find, so that will be receive only. Sent from my SM-S901U using Tapatalk

141.3 traditionally was the REACT tone which kinda became the travel tone. Sent from my SM-S901U using Tapatalk

I should add, I generally use the output tones in my area. Otherwise, I would be hearing all the kids, lawnscaping companies Sent from my SM-S901U using Tapatalk

You can do either. If you are in an heavily used area or have multiple repeaters on the same frequency. Then I would suggest using the output tone. Even then always open squelch (or use monitor) to verify input frequency is not in use, before transmitting. Sent from my SM-S901U using Tapatalk

Oh.. yea I agree. Listen to aprs frequency in a dense area. What I was referring to was the amount of data that can be sent. Especially, something like FT. Damn symbols rate caps, lol Sent from my SM-S901U using Tapatalk

Don't know what it is. But a one second date burst is quite small. Maybe 1/2 of a standard aprs beacon without additional text? Sent from my SM-S901U using Tapatalk

Kinda tough. Data burst can't be longer then one second. "3) Digital data transmissions must not exceed one second in duration." Can't have more then one data transmission inside of 30 seconds. "(4) Digital data transmissions must not be sent more frequently than one digital data transmission within a thirty-second period," Data transmissions have to be manually activated. The devices can not store and forward packet modes for data. Sounds like they don't want you to. Realistically, speaking even an aprs packet is 2.5 seconds long. Ft's' being streams and automated (well kinda), looks like verbiage was put in to stop exactly that kinda of thought. Sent from my SM-S901U using Tapatalk

Any antenna even a no groundplane antenna, hate that wording. Will perform better with a ground plane. So depends. Grounding is for static electricity build up from the antenna and coax. I have antennas in the attic but due to dust blowing over the coax I put arrestor in. For a tremprory install not a necessity but nice. Be aware of this when off roading to a dry dusty area though, especially as winds pick up. No need to fry a radio. Then even an grounding spike would be nice. With that being said a lot of hams on sota/pota (summit/parks on the air) don't even ground. Personally, for your type of setup. Especially, for solo hill type of excursions. I would build a tape measure yagi ( even though about tv rabbit year yagis, to be multi frequency resonant). Guess it depends on how the mast is secured and what it is. Betcha you it's a harbor freight flag pole, recommend all the time as permanent or portable mast, can't beat the $50 cost. Sent from my SM-S901U using Tapatalk

What you say is empirical. Unfortunately, a lot of factors come into play. The theory is just a start. Antenna theory isn't magical, it's physics. So no super bending the laws to get magical more "farz" from similar designs. We give up some here for more there. Unfortunately, advertising from the companies selling us stuff obfuscates a lot of the truth, and the internet adds more. Same thing with the gear we use. X vs y company. How much it cost vs quality. Does it make a difference? Yes/no. Hard to explain or quantify even in person. Glad you are testing with things and coming up with your own answers. Knowledge is king. Sent from my SM-S901U using Tapatalk

I get it. Other designs have similar issues. But let's be truthful here, we aren't going to be talking skip zones often with uhf. For me almost the same guys on 2m or 70cm ssb. Well minus some tropo. Yagis are another example.. Sadly, they have a crap ton take off angle. Tons of the energy is lost up high and into the ground So much so I was trying to design a workable cubic or quad-cubic antenna, by design they are flatter and tighter in radiation angles. But since a discone, is considered an omni-directional antenna, it is basically a sphere. So yes, 1/3 of the radiation is up top, is in an undesirable angle. So is up to the lower 1/3. Basically, don't sweat it too much Sent from my SM-S901U using Tapatalk

From what I get. The pattern is close to omni directional radiation pattern like. They will be varying lobe gain values, small fingers. They harder thing to figure out is gain values for a particular frequency. Reading it is between 1.2-2.3 dbi or so. The gain problem is only a problem if you are a ham might cause some pain doing the rf exposure studies, that we are required to do now. Which i know really affects hf users more than vhf/uhf/shf/ehf. Also for these frequencies I not sure take of angle is going to matter especially with an omni directional pattern. Sent from my SM-S901U using Tapatalk

You can transmit on discones. Especially, if the swr is acceptable in the transmit range. They are really optimized for recieve. So mileage would vary. The transmit radiation pattern are often not very good because of this. Sent from my SM-S901U using Tapatalk