
WRKC935
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Everything posted by WRKC935
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Well golly Gee.... it gets hot here too, and we don't have these issues with flex alerts or any of that stupidity. Can't say we have ever had a MANDATE to conserve energy here. And as far as cancer causing materials. Yep some stuff causes cancer. It's only regulated there, because state governments in other places expect their populace to be smart enough to not get over exposed to them. One one state feels like their residents are too stupid to understand that and create stuff like prop 65 to regulate it. Then again, interacting with some from that state, I can see why they would feel that way about it.
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OMG is this REALLY a topic of discussion. The MOST common issue for a radio that is rated for 50 watts NOT doing 50 watts is it's actually NOT generating 50 watts. The second most common issue is line loss. And for the love of God, 49.37 watts is not 50??? Are you KIDDING ME?!?!?!?! This type of stuff is where the lack of ANY sort of testing of knowledge of subject matter to get a license becomes fully apparent. And drives guys that have a heavy back ground in RF systems up the damn wall. As Mark mentioned, there are a ton of singular reasons that power output can go down from what the spec the manufacture stated as being the 'rated output'. Any ONE of these can come into play, and it's typically a combination of them that will reduce power output. And these figures are generated by the designer NOT a test by the manufacture when the radio is built. And people need to have SOME small understanding of how much effect there is on coverage when you are down to 45 watts from 50 or even 25 vs 50. Becasue there is NO difference between 50 and 49 at ALL. Case in point. I loose 30 watts in my transmit combiner. So when my repeater is programmed for 50 watts, my power level leaving the building as measured at the surge suppressor at the cable window is 20 watts. The repeater talks for 30 miles in most directions and is only limited within that circle of coverage by topographical issues. Meaning I can't get RF to pass through hills, buildings and other structures. And that is a fact of UHF RF propagation and is consistent with all equipment operating on the frequency range. Nothing to do with 50 vs 20 watts. If I increased the power to 200 or even 2000 watts those locations would still be blocked from reception of the signal. Something as simple as a 3 foot cable being between the transmitter and the watt meter WILL decrease measured power. By at least a couple watts at UHF regardless of the cable type. And even the connectors have loss in them. So on paper the radio may calculate to have a power output of 50 watts but you will never seen that power level with an accurate meter due to something that simple. Another issue with not measuring the rated power of a radio is the radio and the meter used to measure the power. Good test equipment is expensive. A Bird 43 power meter is about 300 bucks new. The required element for it to work is another 150 bucks. And that meter is rated for an accuracy of 10 percent of the full scale indication of the element in the meter. Meaning if the element is 100 watts, that meter can be off as much as 10 watts and STILL be considered within spec. You are measuring a 100 dollar radio with a 20 or 30 dollar meter and expect the same level of accuracy. Yeah Right. I don't care if the meter has ability to indicate down to the hundredths (.01) of a watt. It ain't that accurate. I have a 40K dollar piece of test equipment that is coupled to a 700 dollar power coupler that is all sent off the be certified every year and calibrated. It ain't THAT accurate. And if you think that the meter you got from Amazon for 40 bucks is better than my 40K dollar piece of test gear, then YOU are the one living in a dream world and nothing I can say here is gonna change that. Hell I can make a measurement with what I have, disconnect the cables, reconnect them and they will indicate a difference in power of more than a hundredth of a watt. And that is just from cable placement and cycling of the connectors. And YES, ALL RF connectors have a finite number of connects and disconnects before they are deemed 'used up' and have to be replaced. For microwave testing, the adapters and connectors are rated for between 50 and 100 insertions. And cost 50 or 100 dollars a piece for a simple N female to SMA male adapter. And NO you don't check 6 Ghz microwave power levels with a Bird 43 either. That would be done with a HP watt meter that the POWER sensor is over 1000 dollars and the meter is around 10K. And the N connector is replaced on those every 2 years during calibration. Now that is getting into lab grade test equipment, which is NOT something that you are going to be buying from Amazon for 40 bucks. But it WILL measure accurately down to .01 watts and below depending on the power sensor used.
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Or as my chemical spill response instructor and CERT instructor called it Methyl Ethel Bad Stuff. It's funny how the things that can kill you in one specific state are ok to posses in 49 other states. BTW, how are you handling the fact you can't charge you government mandated electric car while you have rolling blackouts? I wonder if the blackouts effect the folks that vote for liberals and the conservative voters equally.
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Why really some folks say GMRS repeater linking is illegal
WRKC935 replied to jwilkers's topic in FCC Rules Discussion
I really don't see the linking efforts going away. What I DO think, and I have done, is provide a secondary repeater in my area with the same coverage footprint so that two or more users in my coverage area have a manner to communicate that they are not tying up 30 other repeaters in 3 states while they talk about nothing specific. To me doing that is a waste of resources. And I have the ability to run multiple repeaters for the same antenna system. Now the operating of digital modes, God I would love that. And encryption too. For specific applications, and situations. But not as a constant thing, unless it was a closed repeater. But I don't understand the idea of a club, or public repeater being legal and linking NOT being legal. If it's specifically meant to be family comms only, then limit the antenna height to 50 feet and the power to 5 watts and not 50. Because my power level out of the building is 18 watts and I can talk on the thing 30 miles away from it. And even at 5 watts with 180 foot of antenna height, I am not gonna have that much less coverage footprint. I guess the real question is this. Does the FCC even care what we do as operators and repeater owners if we are not interfering with other services outside GMRS? CB radio is limited to 4 watts AM and 12 watts SSB. But there are videos on YouTube of guys running so much power that they have corona discharges and maintain huge electrical arcs on their antenna systems and yet there are NO report and orders issued about anyone operating with increased power levels on 11 meters. And when was the last time you saw ANY enforcement issues with GMRS. I looked and I couldn't find a single one in the last 15 years. And has anyone actually contacted the FCC and gotten an opinion from them about using the Internet as a link path to do interconnect with? Now I will say that there are no devices that are specifically marketed to the GMRS community that are used for linking. I am not seeing radios with Ethernet ports show up that could be used as nodes to connect to an IP network for remote operation. So there is that. But is there a market for them and do the manufactures see it as being a viable market? I am not a lawyer, or an FCC field agent. Government regulations are typically written in double speak and are notoriously difficult for laymen to understand. So I will NOT question what John said or his stance on the legality of it. Many of us in the radio hobby have stretched the rules at one time or another. Done dumb stuff on purpose or by accident like putting GMRS frequencies in a 100 watt mobile and forgetting to turn the power down to 50 watts. But I don't personally believe that the linking thing is going to be a primary enforcement issue from the FCC either. Just like the discussions of type accepted radios. If they come at you for something else, and your radio ain't legit, they will throw that on top of what they came down on you for, but it's not a primary offense that they will come inspect you station for. And I have worked with the FCC directly in the past. Looking for malicious interference on an homeland security licensed frequency and about interference to a navigation radar system used by an International airport. They were equally serious about the enforcement of the problems but were very easy to work with. And at the time they wondered if I was the one causing the interference with the radar system due to dishes we had on the tower. -
Some repeaters will generate CTCSS when they ID while others don't. Your configuration for TX PL/DPL and RX PL/DPL in some radios are separate, other radios will use either a single entry for both or rely on whatever the TX PL/DPL is set to for RX if nothing is configured. Try looking for a 'monitor' button on your radio. That will open the receiver regardless of the tone being received. See if you are hearing the Morse Code when you hit that button. Also, understand that the ID of the repeater is NOT going to happen every time you key it up. There is a timer in the repeater that if it hasn't transmitted ID in the time set in the repeater programming, typically 13 to 15 minutes, it will ID. If it has ID'd in the last 14 or so minutes it should NOT do it again. There is no requirement for a repeater to ID with the PL/DPL tone encoded. Ham's typically have this enabled so they can hear it to remind them to ID. Of course, some of them have talking repeater controllers that will babble on about where the repeater is, the frequency, call sign, time, temperature, how high the tower is, how much power it's running, club membership information, and a whole list of other nonsense that no one cares about. We have a ham repeater here locally that goes on for 15 seconds with this nonsense every 9 minutes rather or not it's in use. And for the love of God don't key the thing up after it's ID'd because then the secondary in USE ID will come on and it will ID again. If it's timed right you can get it to ID 3 times in about a minute. Hence the reason NO ONE uses the dumb thing. Personally I hate talking repeater controllers. The one on MIDWEST is fine. It runs once an hour, and has useful information. But if it was announcing crap every 15 minutes I would be unlinking my repeater. Anyway, I would be looking to see how your radio handles the PL/DPL configuration and see if you can disable the PL/DPL on receive to see if that helps. I am just guessing but I am willing to bet that the radio doesn't have some special filter to keep the Morse ID out of the receiver.
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Wanted repeater controller with no tone cw id for GR300.
WRKC935 replied to mikevman's topic in Miscellaneous Topics
The repeater NOT generating tone during ID is usually a function of the radio and not the controller. And it's going to depend on where the PL is generated. If the controller is generating the PL and NOT the repeater, then the controller can be configured to NOT generate PL during ID. If the repeater is programmed to generate the PL and you key it via one line it's gonna generate the PL, if you are using mobiles as a repeater then this is also going to be the case. Again you have to control where the PL is generated. The problem with generating the PL in the controller and not the radio is the level of the PL. Wide band FM is 5Khz deviation at full send. The PL is generated at .7 to .8Khz deviation. So much lower than the intelligence. But the radio will typically have filters on the input that drop all audio below 300 Hz which is where the PL is. If your radio / repeater has a FLAT AUDIO input then you can send the PL up the audio line and it will be transmitted. But the level issue still exists. To set the levels, you about need a service monitor to get the levels right. If the PL is hot, then it's gonna be heard in the transmitter intelligence and people will ask what it is and complain about it. So lets go back to the i20r. What's wrong with it to begin with? Those were not exactly complicated and the failures were typically easy enough to repair. Typically they worked well unless they got hooked up wrong and a control transistor got huffed. Care to share the issues with it? -
Ham Ticket and Soldering Iron - Let's Go-ooooooo!
WRKC935 replied to tep182's topic in Amateur Radio (Ham)
I can't stand that guy. He's the equilivant of the idiots that hit themselves with a hammer to get views. -
Well, your right and wrong. The emmision for CW is indeed A1A. However, a repeater ID is NOT transmitted as CW. It's Morse Code as a tone transmitted on an FM carrier. The transmitter is legal due to this. NO one with an FM repeater gets an emission designator on their license for CW (A1A) because of this. Because they are NOT transmitting CW they are transmitting Morse Code. The CW emission A1A, is a modulation technique where the carrier is switched on and off as the method of modulating the carrier. If you were to hear a true CW emission on an FM radio it would be carrier being switched on and off. Basically it would sound like someone kerchunking the repeater and sending CW doing so. What you hear is an FM carrier that is modulated with a tone generator transmitting Morse Code intelligence on that carrier.
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Low pass filter on cb plus amplifer setup
WRKC935 replied to Elkhunter521's topic in Miscellaneous Topics
Where are you measuring this increase in SWR? At the radio or between the amp and antenna and what are you using for a meter to test it? If you are seeing an increase at the radio that means the input impedance of the amplifier is off. That's actually sort of common as there is little quality control in the manufacture of amplifiers for that band. If you are using an SWR meter that is designed for CB at a 'legal' power level and doesn't have an adjustment for calibration to the power level then it may be fine. You have to understand that if the meter is expecting 4 watts forward then a 1.5 SWR would be about a tenth of a watt. If you connect a meter like that to a 100 watt source, 1 or 2 watts of reflect would be that same 1.5 SWR. But 2 watts reflect on a 4 watt source is an SWR of like 10 or something like that. Short of that, you have a crap antenna or you are trying to drive a mag mount antenna and the capacitive linking to the car body for the counterpoise of the antenna is NOT coupling well enough and driving up the SWR. A properly designed antenna system should NOT change SWR with a change in power level unless the power applied is beyond the breakdown voltage of the components of that antenna system. And then it's actually failing and burning up, not changing resonance. Installation of a filter is NOT going to have any effect on the SWR if the filter is properly designed, and if poorly designed, it will INCREASE the SWR not lower it. I am gonna assume you are having issues with the RF interfering with other equipment and someone told you to use a filter? If that's the case, you need to do two things. First is quit driving the hell out of the amplifier and thinking that you need to get every last watt out of it by driving the circuit past saturation and linearity. The second is buy a better amplifier. RF gets amplified all the time. Radio stations run tens of thousands of watts and interfere with no one. So it's NOT a power issue.. it's a crap design issue. There's not exactly a set of regulations for spectral purity for amplifiers in that band as they are illegal. So stuff just gets slapped together with a cool name and flashy paint and it gets sold to unsuspecting guys that have no idea, they just want to get out better. And DAMN few CB shops have real radio technicians. Most of those guys got shown by someone it radio X that you cut this part, turn this adjustment and lie a lot to the radio owner. Collect his money and wait on the next mark. They get a bunch of old test equipment they have no clue on how to operate but it looks good to people that have no clue and put it on their work bench. The really dishonest ones will have a modified watt meter that has a hidden switch elsewhere that they flip after 'tuning' your radio to show you your 4 watt radio that has a 6 watt final in it is somehow outputting 10 or 15 watts. It's all bullshit. I lived that life for a few years. I watched co-workers screw people out of money putting 'kits' in radios that did NOTHING that were soldered into ground points and then after turning their mike gain back up and keying the radio as they would modulate and unkey as they stopped whistling get the watt meter to swing all over the place. And they did NOTHING to the radio to make it better. But it put money in their pocket. And you somehow are led to believe that they would sell you a quality amplifier. Sorry to burst your bubble there.... but thems the facts. -
Wanted repeater controller with no tone cw id for GR300.
WRKC935 replied to mikevman's topic in Miscellaneous Topics
Personal preference is a Raspberry Pi and a CM108 audio interface. These can be built up with the image for connecting to the system and then just not connected to the Internet if you are not looking to link. Another option right now since R-Pi's are a bit hard to come by is a WYSE thin client with Linux loaded on it and the CM108 interface that is basically acting as the Pi. Those are cheap to acquire and will fill the need but you have to be a bit of a computer geek to get that running. If you a comfortable with Linux and hardware hacking, this is the way to go in my opinion. -
Didn't realize thread had changed and was old. Never mind
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Programming Motorola XTL5000 or CDM1250 mobile radios
WRKC935 replied to VETCOMMS's question in Technical Discussion
If you end up with the software and a cable let me know.... If you can read teh codeplug and email it to me I can set it up for teh first go around -
Programming Motorola XTL5000 or CDM1250 mobile radios
WRKC935 replied to VETCOMMS's question in Technical Discussion
Yeah,,, color codes too. I have built a couple code plugs for Motorola XPR radios. And the one constant is it's time consuming. -
Programming Motorola XTL5000 or CDM1250 mobile radios
WRKC935 replied to VETCOMMS's question in Technical Discussion
And yet NO ONE actually answered this mans question. With most radios (non-motorola) you program them in one big spreadsheet looking thing where you name the channel, put in the frequencies and tones and then blow it into the radio. CDM software and Astro25 software are different and you need to understand how to use the software. With CDM software, you build all the channels independently and then once the channels are built, you go into the zone list, create the desired zones and set the channel configurations in the zones. This is done two different places in the software. Scan lists are also build elsewhere in the software and assigned to the channels. Of course, you can't add a channel to a scan list that doesn't exist so there is some back and forth that goes on. Astro25 software (XTS /XTL) software This is a bit more complicated as the radio has multiple transmit modes that are set in a 'conventional personality' that is assigned to the channels. It DOES however program more like the spreadsheet radios, but there is some prep work that has to be done. the XTS XTL stuff is P25 and analog. So the settings for the modulation are set in the personality, but not the frequency as in the CDM. You DON'T have to create a personality for each channel either. THe personalities can be shared across many channels. Be aware that the scan list is set in the personality and a scan list can only have 16 channels in it. So if you get crazy and program up zones by state, county or whatever, you will need to create a scan list and personality for each zone. Not hard once you understand it but really time consuming. Once you have the conventional personalities built, you then add zones and program the channel frequencies and tones in a spreadsheet format in the zone configuration area. Ask if you have questions. I have a bit of experience with Astro25 as I have been using it for about 15 years now. -
There are significant differences and the specific version of the software needs to be correct as well. Could you go through and figure out the required changes and make them on the correct release version of the software if you KNEW Asterisk fairly well, yes, to a point. Will you spend more time going through all that to modify the config files, DNS entries and all the rest needed to get an Allstar version modded to operate on the GMRS network. And there is NO support for modded versions from the system admin. They support the available release. And they know quickly if it's a modded version or the supported image. You have to image a drive to get this to work, no way around that. So why go through all the effort of getting a non-supported version, then needing to modify the heck out of it so it will work and be on your own if there are problems. Just DL the correct version and configure it per the provided directions. If you are worried about the audio level settings since you already have them configured for a current repeater then go in and document that info and write it down. It will not change with the new version.
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Interesting. With the latest batch of regulations, you CAN have a private repeater, but you don't get exclusive use of the frequency. I ran into a guy here sort of locally that had a BUNCH or repeaters listed on here that were stale. And in fact never really existed. And he was running a business trying to sell air time on GMRS. That was when I decided that full free open access was the ONLY way to put up a GMRS repeater and I put up three. He was NOT happy, and I really don't care. But if I were in the position that you are currently in, because I am the way I am, I would park a DB-420 at 240 feet and locate the repeater about 10 feet from it and have it force ID every 10 minutes. Different PL of course, but that's just me. Now this chewing out and threats??? Karen's are EVERYWHERE, even in GMRS radio. But the threats are interesting. Are we talking threats of contacting the FCC or threats of violence / arrest or similar? At that point if the guy IS a part of law enforcement, then there is a whole other level of illegal crap going on. And at that point a letter to the state with recordings (if legal in your state) to the State's Attorney General are certainly in order. But I would need to know what was said. If the guy was threatening arrest based on you communicating on some 'public safety' radio system then you include the FCC in the letters going out. As mentioned before, I have seen radio tech's pull frequencies out of their butts for applications where they should NOT have been used. I mentioned 151.625 before. That is a standard low power (2 watt) simplex only frequency. Some clown radio guy was using it for public safety dispatch on a 100 watt repeater. And the department got told about it. If this department has gotten similar treatment from some radio tech, they need to be made aware of it. And the FCC needs notified. But if this guy KNOWS what he's doing, and thinks he can threaten people,,, that's a real problem.
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Two pages to discuss roger beep settings???? It's simple, turn that crap off. End of story.
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LEERN is 154.935. I am confused. Now I have seen where stupid radio tech's had put 151.625, an itinerant frequency, it a 100 watt repeater and was using it as a link. But That got taken care of real quick when I called the department and told them what someone had done to them. They pushed back a bit, but when I told them whatever and I would be calling the FCC they saw the light. So my next question would be, Ohio and some other states have a licensed VHF frequency that is statewide and referred to as LEERN. Is this a statewide LEO channel actually used by actual cops or is this some SAR / EMCOMM group with no official public safety affiliation playing cops and robbers with FRS/GMRS radios?
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While it's specifically not my call, I don't believe that personal nodes are allowed on the system. Has to be a repeater with reasonable coverage. That being said, how this is being accomplished is not some super secret thing that you can't have info on. It's really nothing more than a IP PBX (Asterisk) running some additional software to allow it to communicate to radios. That being said, Hams refer to it as ALL-Star link and there are tons of pages that will lay out how to do it with very cheap parts. And you really DON'T need to be on a system. You just need one end of it to have a public IP on the Internet so the other node can always find it. Two nodes that are aware of each other that are programmed to connect to each other will do so without any additional servers. Now that's out of the way, remember that this DOES use the Internet to provide connection between the nodes. This system is no different. Having expectation that it's going to work in the event of a disaster is setting yourself up for a serious disappointment. So that that under advisement.
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Yes, there is. You are going to connect it up as if you are tuning it and look at the notch that shows up on the VNA. With one that's correctly tuned for a single frequency, the notch should be fairly tight, but you will be able to see the notch go down, and then come back up. The deepest part of the notch is the primary tuned frequency. You can also put markers on the close repeater frequencies and see what the difference in the notch value is. Obviously it will NOT be as deep as the primary tuned frequency but you can see what the numbers are. If the numbers are 3 dB or less between the center tuned frequency and the frequency of operation then you are gonna be safe to use it on that frequency. Now if you don't understand dB measurement then 3 dB doesn't sound like a lot. But it's 50% of the specific signal level. Lets say you are running full legal power of 50 watts. That is 47dBm. If you loose 3 dB of power it's now 44dBm. Thing is 44dBm is 25 watts. So a 3 dB change is NOT insignificant.
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Yeah, I am glad we figured that out. And I hope the guy finds a location and gets a repeater on the air. I actually went back and read the first post and of course, NONE of what I was talking about was in there. So I went down and found the post I was referring to. I sort of figured it was something like that, since what you were saying didn't at all fit with what I was talking about. I am really glad I did that so we could get clarification and on the same page. I hate seeing stuff like that. And unfortunately it's more common than folks might think. Since we were discussing MOU's. I am actually getting ready to work on one with the county I live in for two repeaters I am housing on the tower. Both are ham repeaters that will be general amateur use unless there is a specific need for EMCOMM. I have a unique situation with the tower location and coverage foot print that allows access from both my county of residence and the county to my West that has the state capital and the State EMA office that is almost LOS to my tower. The repeaters will be running from a battery plant and rectifier (150 AH will be the initial storage capacity) that will hopefully be solar and wind fed along with grid to the rectifier. I plan on growing the battery plant as funds become available and getting it to at least 300Ah at 48 volt.
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OK, maybe I read it wrong. From what I understand of this situation. The water company (which may or may NOT be a government entity at this point) has granted not only access but total control for antenna access to a water tower that is owned by the water company. Now again, if this is a private entity and NON-government, they are free to do what ever they want. Except even a private water company has to have back ground checks done on ANYONE accessing a water tower, or potable water facility if that water is a source for public consumption. But we aren't even going to go there. But like you said, these places are HIGHLY regulated, even the private water systems. He further said that the ham group in charge of granting access for antenna/ equipment installation on the site requires a membership with their ham group (which no doubt has a fee THEY are collecting for that membership and no doubt a current ham license) in order to even be considered for access to the site to install antenna's and other equipment. So this would be strike two on the crap you can't allow as a government entity. A private entity CHARGING money to access a government asset. And what do you suppose the chances are they are sending those access payments to the owner of the site? Can't go to the local court house and put up a barrier and require payment for access to a government building as a private citizen. And that is sort of what they MAY be doing.... but with a water tower and not a court house. At least that's what I understood from the original post. OK<<<< NOT ORIGINAL POST This was the post that was created by WRAM370 and NOT the original poster. That might help a LOT. Read what he had to say and then we might be on the same page. Sorry brother,,, I kept sayin OP, and that was NOT the OP's post.
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do you have your gmrs call sign is your profile?
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Lets NOT take it to a level of corruption. That's using stronger wording than is necessary, or in truth even warranted. The average elected official, or employee of a government entity is not even gonna understand that they CAN'T do what the OP has presented here. Again, some group of ham operators (and voters) comes with the semi- hard sell of ARES and disaster communications. The average city or town mayor is gonna know his police force uses radios for their communication. Beyond that they know nothing. You have a bunch of well meaning individuals in front of you describing how they can communicate with other states, agencies and even provide satellite communications with no 'direct cost' to the governmental entity. They have no basis to form an opinion that if a tornado hits, that they are NOT gonna need to be able to communicate with the UK, or even 3 states away. They may have previous experience with a communications outage that happened in the 60's and fear that again. So they agree to allow things to happen that shouldn't, and in truth they may not even, from a legal standpoint, be allowed to have happen. It's not corruption in the sense of taking a payoff or anything like that. They just don't see a problem, think it may provide SOME solution to a non-existent problem so they agree. And I have raised these sort of issues to city leaders and county commissioners when an EMA director was going to use county taxpayer funds for antenna replacement on a ham repeater that wasn't in any disaster plan for the county in question. It immediately got squashed. That director retired, and the new guy did the very thing the last guy got called on the carpet for and was reprimanded for doing so. I know what you mean about having an agreement and MOU in place. But that isn't very common place around here. It's the exception rather than the rule in fact. Point is that with the OP and that situation, there is some shady stuff going on, if he's got the whole story and has conveyed it to us here. It seems that the HAMS are the ones issuing the MOU's and managing the asset and have requirements that are restrictive beyond what is reasonable. At least in my opinion.
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Oh, I almost forgot. The above mentioned site was a water storage facility for the city that owned the site.
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