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ASRM

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ASRM last won the day on December 5 2016

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  1. I like the idea, but the problem is with the bootleggers that snag onto a repeater, the unlicensed users that don't know radio protocol or a host of other reasons. Do we want a 911 dispatcher monitoring the rag chewer? Having a mutual aid type channel would be a great idea. I know from experience though it's a pretty tough sell. We have a UHF repeater that 30-40 miles at almost full quiet for the sheriff department, I personally have tested it in our county for a couple months, along with the deputies for coverage. It is a near "perfect" system (I am placing my Part 90 Repeater at the same height and power) and yet we can't get the county to sign off on it and make it official for a mutual aid system. All the departments in the county are on UHF, all have discussed a need to reachout to county and other agencies, ISPERN doesn't allow certain comms that the MA channel would provide. If someone does initiate such a program, I would be VERY interested in how they got it approved.
  2. I see one of our members commented as did I. It amazes me at the amount of bad information people seem to put on the web, and thus continuing the problem. Too bad you can't flag crap like her's for illegal advise.
  3. I pretty much figured that, I think whomever had posted that (I want to say at RR) must have been quoting older rules. Thanks for the clarification. I run a non-profit (Australian Shepherd dog rescue) in about 3 states and currently run them on Itinerant for events (all portable). I was like wow, would that save some $$$'s.
  4. We run PM400's in the vehicles, I ran positive to the battery and ran my ground to the frame near the battery. No engine noise at all. I do on occasion get some noise near an older car at a stoplight, but that is on a signal at S1 or so.
  5. Isn't that amazing? I know ours out does most of the Public Safety systems around us (we even cover better at 10 miles from the site than theirs do with the repeater in the town or county), I am shocked at times that some shops don't feel this is an officer safety issue. Makes you wonder if there is something more to it, though I can understand ERP and restrictions placed that Part 90 and PS deal with that we GMRS folks are not restricted with.
  6. BROWNK89 I almost bought those little 350's but honestly for the price if you can find a repeater in your area, and it works well with portables I would instead go to eBay or do a search online for used commercial gear. You can find excellent deals on used Moto commercial portables for $40 each and on up, some will have a charger, maybe even a decent battery. Most of the eBay sellers will program them before shipping them out. Also the Maxon 4450SC's are some of the best deals on GMRS, they should be had for $40+ programmed and then just get a decent antenna. They are 16 channels at 40 watts. Again you can grab Moto mobiles for less than $100 ea or even less (MaxTrac's are a dime a dozen). I started out buying on eBay and am not sorry one bit, from there I met folks, some here and on another message board that have sold me gear at great prices and helped me a lot. I eventually got in good with a 2way shop in my area and bought new gear at almost used prices as well as now work there, you would be amazed at what some shops have sitting collecting dust and they would probably sell for a few $10 bills I know our shop has hundreds of wideband gear equipment that will work fine on GMRS.
  7. Can't be stressed enough, I know some feel a repeater is there for the using, myself and our shop feel differently. Ask, I may or may not give permission, we tend to allow other repeater operators as a sharing basis, we all have some skin in the game. I have heard some simplex users for the most part CB'ing it, cussing, talking things I would not want rebroadcast and have a hard time allowing them on. JWILKERS is right, get permission, if they don't answer then that is the answer you seek. In our area there are repeaters on almost all the GMRS channels, some are open with travel tone, some are closed. I have always asked, those that don't allow I completely respect.
  8. We had some ducting on our repeater were about 100 miles away a user was hitting our repeater at full quieting with a 10 watt mobile on a mag mount 1/4 wave on top a fridge. It was super clear for about half an hour, so in a way you are seeing skip, but not like you would on 10-11 or the other HF frequencies. Something to keep in mind is just cause you hear a repeater on GMRS doesn't mean you have access. You should acquire permission, lately on ours, since it reaches 30-40 miles on mobile in every direction we have had some people coming on and wanting to talk. We use digital tone squelch and you would have to be trying the various tones to gain access. To me that is pirating and not using a travel tone (which we don't do).
  9. Someone posted on a Yahoo GMRS list that Non-Profits could also operate, I am pretty sure that is not the case. I wish I could find that post.
  10. NICE! I was able to score a used 408 the other day, not sure what to do with it besides hang on to.
  11. I am late to the party, but I had a similar setup as you N4GIX About 40 foot to the base of the mast, tip of antenna was around 52 feet. Portables were full quiet at 1-2 miles, usable at 3-4 depending. Mobile was about double that to 20 miles in places. Used a Comet 172 and 1/2 hardline on a Vertex VXR7000 pumping 38 watts (we turned it down since I run a 6 second hangtime) and saw 32+ watts out the duplexer (celwave like yours it sounds, we bench tested and desense was fine). We are on top of a pretty high ridge over looking a river valley. It was sporadic on decent coverage. We ended up going on a commercial tower at 220 feet, day and multiple nights difference. In speaking to a local ham over the weekend, even if I returned to my original site and went 80 to 100 feet I don't feel my issues with holes will go away. I did find a tool online, don't recall where that let me plot elevation obstacles between my site and various locations. What I thought was a line of sight to different areas revealed a lot of high spots and dips that effectively created fresnels on my coverage which revealed to me that no matter what I did, I had to get height to get reliable coverage. My next debate is adding a few voting receivers to listen in the valleys were the 220 hits TX but has poor RX on portable (really just for fun) Good luck, I find these new setups and improvements to be very informative.
  12. ASRM

    NSEA

    N4gix I read the filings, it was a real eye opener on just how much of a struggle it seems we have to get the ear of the FCC. Mr. Knowles is spot on with his filings. I encourage everyone to read those documents. Again thanks for the link.
  13. RFMedic is right, not just the sites needs, but in a heavy RF environment you might see a lot of desense happening, effectively making your repeater deaf. I would if looking also consider the other services on the site and the amount of activity it has.
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