Jump to content

quarterwave

Members
  • Posts

    328
  • Joined

  • Last visited

  • Days Won

    42

Posts posted by quarterwave

  1. The repeater needs to identify if the callsign of any of the users isn't the same as the repeater owner's (i.e. the user is not operating under the repeater owner's license). It's explicitly stated under 95.1751(c​)(1), and per 95.1705(d)(3) it's the responsibility of the repeater owner to limit use of a non-identifying repeater to only those operating under the repeater owner's callsign.

     

    That's fine, I don't want to argue. But newer people need to know that one persons post is not necessarily fact (neither yours nor mine to be fair) and to read the rules carefully and do what they interpret is right until such time as they find out it is or is not. 

     

    I have been in commercial radio part 90 for about 28 years, part 95 repeater owner for 25, worked with DC law firms on licensing and problem resolution many times. I'm not new. And I can tell you it's not that way you are stating it. If it were, about 10,000 repeater operators would be shut down, but they are not because they are not violating the rules. 

  2. The repeater MUST identify unless it is only being used by a single licensee: the owner of the repeater and their immediate family. If a repeater is not identifying but carrying traffic from multiple authorized licensees, the repeater owner is at fault. If the GMRS licensees using the repeater did not obtain permission, they are at fault. If the transmissions from the repeater are not compliant, the repeater owner is at fault. If the violations are being committed by the repeater's users (for example, swearing or jamming), the offending users are at fault and the repeater's owner is not. If unauthorized repeater use is occurring and the repeater owner is aware, the repeater owner is obliged to take steps to prevent the unauthorized users from accessing the system.

     

    "If a repeater is not identifying but carrying traffic from multiple authorized licensees, the repeater owner is at fault." 

     

    Not true, the users must each individually identify, but the repeater does not need to, or it indicates the traffic is from the owner, and not the authorized licensees. 

  3. Same as FB4 in part 90. (Community Repeater) each individual or business had their own license and the owner had one that included the repeater. 

     

    If you are going through someone else's repeater, it is your responsibility to operate your equipment according to the rules. If there is a technical problem with the repeater equipment itself it would be determined by the person monitoring it. Once you monitor several different users through the repeater it is fairly easy to discern where the issue is. 

     

    It is always the user's responsibility to give call sign. The repeater operator usually doesn't chose to let the repeater ID itself (like with a controller) unless he is the only user. 

  4. I've heard that alot. Nothing to prevent it, they can use FRS, however, any legit business should get an assigned frequency and license in part 90. Most of the time, it's just a business taking the cheap way out. 

     

    There was an industrial supplier near me that finally got off FRS due to people breaking the cheap radios, and the fact they were on channel 1 code 1...genius...and always had "interference". LOL

     

    Added: I also ran into a situation with a Highway Dept that has a VHF repeater and good radios (Narrowband VHF), but in their flagging operations the radios were setup for 2 watts to conserve battery, and being narrow, range was crap. In fact, they could not hear each other even though they could see each other sometimes. One of the guys brought in his kids FRS radios and they could actually hear each other. I told them to tell their boss to buy a couple of Trbo radios for flagging and program them for 5 watts, and they can still have the main repeater channel in there too. 

  5. I have a couple of TRAM antenna mounts left over from a project I did. 

     

    One is a Stainless Truck Mirror Mount, which can also be used as a bolt on bracket type (Tool box, Rack, ATV, etc). Mini Uhf Connector, NMO Mount.  $36.

     

    And Two (2) of the small mag mounts. Mini UHF Connector, NMO Mount. $26.

     

    All new in package. Paypal for payment. Shipping to 48 CONUS included in price.

     

    Thanks.  

    post-33-0-89315700-1527512223_thumb.jpg

    post-33-0-91329700-1527512237_thumb.jpg

  6. I can echo that I have both personal and professional experience with both, and always prefer the NMO over a Mag. Why? I always saw a Mag as a temporary setup. Over time they can have issues, mostly from water. I have even seen the ones with clear plastic seals on the bottom have water in them. 

     

    I observed that reflected power was always better with NMO, and the lower the frequency, the worse it got on the Mag. When I was working at the M shop years ago, our local Sheriff's dept would keep a couple dash mount D51 Maxtrac lowband mobiles, cig plug power cords and Mags for winter, so they could "borrow" a couple of 4x4 Ford Broncos in case of big snow events. Then they would spend 2 hours at out shop while we tried to explain why they were not working right with 60 watts out and 25 reflected at 39 Mhz, and find a sweet spot on the roof where the reflected was better. 

     

    The older techs told me 26+ years ago that a 1/4 wave on a NMO was the best, most reliable antenna. I found that out several times over the years and that is all I use today. 

  7. PL/DPL is for channel sharing. It is not for privacy, and is not for interference, as interference would mean you have exclusive use of a channel. Even in commercial use, it is for filtering out unwanted co-channel users, or distant "skip" signals. 

     

    As said above, a radio in CSQ hears everything. A radio set to a PL only hears transmissions coded with same PL.

  8. 1. Iv'e never seen anyone "grab" a license from the FCC.

    2. The reason we get disappointed in the first place is THAT we have expectations. 

    3. I'll quit dinging you for looking like you just took a creative writing course and got a C+. 

     

    :)

     

    Seriously - no, those radios are no going to have "real" range, I don't care what the box says. I assume that my (4) little Uniden GMR1048 with the "forbodden"  scramblers are good for a mile. If I get more, Ok, but I use them to that end. When it's time to COMMUNICATE I use real Motorola radios, handheld or mobile, via or sans repeater. Not everyone wants to go that far, but I used to work in commercial radio, so I do. Step up to a wideband, 4-5 watt (commercial or pseudo commercial) radio with a good antenna and you will do better. Any obstacles including buildings you are in or thick trees will cost you 3-6dB (50-75%) loss. keep that in mind. 

     

    I got a B- in creative writing. So there. :P

  9. It's amazing how many idiots live among us. I think some of it is truly the mentality that "if I paid for these radios, then my communications are exclusive and private", not unlike having Wifi, but leaving it open with no password required and blaming the guy who is using it without "permission". Or maybe, buying an airplane and just flying it wherever you want, whenever you want. Not quite the way it works. 

  10. Do you want something cheap or something that works (decently well)?

     

    I get it, I mean not everyone has money to throw at this hobby, but the best experience is had with moderately good or better equipment. Some of this stuff on the market I would not touch with a 39.5 Foot pole....or an low band 1/4 wave whip....for that matter. 

     

    I have a UV5R, it has so many quirks, I consider it a toy more than something that I rely on. 

  11. I have NOAA alerts on my repeater, 45 second time out, just because that's all you really need to get the point of the alert. I concur that the VHF is sufficient, but we don't keep weather radios in the vehicles or on our person at all times, so it's convenient and good for safety sake, especially in the middle of 1,000 acres. 

  12. Interconnection, Wireline and PSTN references are all in rules that are pre-dating internet. They all pertain to switched telephone services and dial up connections voice audio. 

     

    They do not pertain to point to point leased lines (that do not run through a telco switch) and they do not pertain to internet. Period.

     

    I worked with all this stuff, in commercial radio, back in the early 90's when only 1 guy in the neighborhood had dial up internet!

     

    There is no use debating HOW the internet is delivered or routed, it doesn't matter, internet is not PSTN in any form.  

  13. I ditto on turning the power down. 20/25 will do as well as 40 in most cases, as the higher the tx power the more chance of drowning your input, even with dupexor (unless you are spending $3,000 on it, and even then I have turned them down to necessary power only. 

     

    When I worked for M we had a customer that used a 25 watt mobile for 2 way and phone interconnect, and 2 HT600 portables, but her repeater antenna was on a 500 foot tower she owned. We had the repeater all rigged up blowing A/C directly into it, as she liked to use that phone for 20-30 minutes at a time, and it was an R100 repeater! We had it set down to get about 2 watts out the antenna, and it had great coverage, more than she needed.

     

    Input path to the repeater will determine the usability in most cases not power out. Too many guys have CB mentality, not what you need.  

  14. If anyone needs a couple of used 40 watt UHF M120 Motorolas, I have 2 left to sell. I sold the 10 watt ones on eBay, but these did not go. Asking $100 each. Clean, working, tested and I can program. Brackets and Mics if you want them, no power cords to spare, but they are easy to find.   

×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use and Guidelines.