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Morse, while being the "first digital transmissions" is not prohibited as long as the signal sent by the radio is still FM.

Save yourself the grief of trying to tune a dual band antenna and purchase a GMRS antenna. https://www.amazon.com/Laird-Technologies-450-470-Quarterwave-Antenna/dp/B0079555WM/ref=sr_1_5?dchild=1&keywords=laird+antenna&qid=1602764409&sr=8-5 will attach to your existing NMO base.

Fusing the leads gives you protection against a failure that could result in fire.

This supply will meet all your needs. You can buy an inexpensive multimeter at Harbor Freight and have enough left over to get your antenna. https://www.amazon.com/dp/B082TTY3L7/ref=sspa_dk_detail_0?pd_rd_i=B082TN889J&pd_rd_w=aAnjW&pf_rd_p=7d37a48b-2b1a-4373-8c1a-bdcc5da66be9&pd_rd_wg=U3xPt&pf_rd_r=8TN3JZQQQ83GBPR3PBNR&pd_rd_r=c136a1c9-166b-4c81-9433-d7c27f808772&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUExODlPQVdDQ1JLTVJLJmVuY3J5cHRlZElkPUEwMTQzNzQ4MTRSRUcxUFNTWUM0QSZlbmNyeXB0ZWRBZElkPUEwMzYzOTU0MkQ3NjJFRDdCWllBQSZ3aWRnZXROYW1lPXNwX2RldGFpbCZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU&th=1

You have many options for a power supply. Get one that outputs between 12 and 15 VDC, 13.8VDC being ideal. Most allow the voltage to be adjusted so you will need a meter. The amperage should be at least 10% greater than the transmit draw of your radio. In watts, that's volts times amps. For an antenna, I would look at a J-pole or one that doesn't need a ground plane for use in your apartment. Once you get in your house, whatever you can both afford and get away with. With radio, height is king so you need your antenna as high as possible as it directly affects the range you will have.

I'm bowing out of this discussion so let it be said we agree to disagree.

From my experience dealing with both the WTB and PSHS is they have no issues with applying rules and restrictions from one section or part to another in their interpretations of a particular rule. It is virtually impossible for laymen, such as ourselves, be aware of all the past filings and rules touching on any aspect of equipment certification or rule applicability. We may have the means, but lack the training, of searching the record for any discussion, petition, rule or interpretation that may be given in any discussion regarding how we view the applicability of one section of the rules to our discussion. The interpretation of the rules regarding equipment certifications and modifications to the stated operating parameters of equipment are best left to the Commission. The rules explicitly tell what is and isn't permissible. Changes to those permissions and restrictions must come through Commission proceedings. In the particular instance of the Midland radios certified under Part 95 it explicitly states narrow emissions only and does not imply modification to wide emissions is allowed within the confines of their certification. As end-users of the product we lack the means and equipment to ensure the radio does not generate spurious emissions exceeding Commission requirements when operating with increased bandwidth. As the final point, our interpretation of a particular rule allows the Commission to either agree or disagree with no middle ground.

As a former Part 90 frequency coordinator I have to state that any change to an emissions designator requires Commission approval. Literally thousands of Part 90 license holders had to apply for, and receive, license modifications to change their emissions designator from 20KF3E to 11K5F3E. Many radios in use had to be replaced as they were not certified for operation at bandwidths less than 20K and modification enabling narrowband operation through any means invalidated their certification. In the case of the Midlands, the manufacturer will have to go back to the Commission showing the change to wideband operation continues to meet the Commissions technical requirements. It is entirely possible the radio exceeds some of the technical requirements when operated as a wideband radio. In response to a petition filed by one Part 90 coordinator the Commission added the reduction of bandwidth with no change of emission type as a change that did not require proof of coordination.

Depends on your definition of attract. By raising the ground potential to a higher point than surrounding possible paths and providing a path with lower resistance a lightening rod provides a more likely path than any other path within the immediate area.

The attic is a compromise usually done to thwart the HOA police. There is one rule for radio overage area -- height. The higher your antenna is above ground the greater the coverage area. There are additional rules about antenna height but, generally, 20 feet above the structure they are mounted on.

It compresses and expands the audio allowing a wider frequency range to be sent/received. Think of it as something as Dolby for radio.

Look at the data sheet on the Meanwell. It specifically states radio as a use so it has all the filtering needed. Pay attention to the maximum ripple and the stated output over temperature and input power range. You won't find a better one anywhere near that price range. (If some other supply has specs that match or come close, you can bet its a repackaged one.)

Neither one. I would put that into this: https://www.trcelectronics.com/View/Mean-Well/ENP-180-12.shtml It's a true commercial power supply that should handle a 50W radio without straining,

LMR covers all terrestrial modes of radio configurations not in a fixed location. FRS, GMRS, Amateur, Business and public safety are just variations of Land Mobile Radio.

Midland builds a good radio but there are limitations to the MXT400 out-of-the-box. GMRS repeaters primarily operate in wideband but Midland radios are narrowband. That means the signal doesn't occupy as much spectrum and sounds softer to a wideband radio. Conversely, a wideband radio sounds louder on narrowband. The other issue with Midland has to do with the tones used to trigger or "wake up" some stations. Some repeaters use one tone on their input and another on output or split tone. Midland doesn't allow this. Thar doesn't mean the Midland radios won't work, just there are some cases where they won't.

This discussion is getting a little monotonous. A fixed station is one of a pair that exchange information between those points only. As a Part 90.20 coordinator we licensed many fixed stations which are primarily used to report such things as water levels on a flood gauge or storage tank, control sprinklers on a golf course and the like. Both points had to be identified on the frequency authorization and commonly were low-power, typically 5 watts or less. The only "fixed stations" carrying multiple types of information are microwave.

If a receiver requires a tone it is to wake the receiver. The receiver will ignore any signals that do not include the tone. You don't necessarily need to put a tone on your receiver as a receiver with no tone specified will unlock for any signal.

Buying new in that price range means you have many to choose from. While having mixed reviews one of the simpler models would be a BTECH UV-25X2 or for GMRS only the GMRS 50X1. Both are on Amazon. You'll need an antenna, I suggest the Laird 450-470 MHz Unity gain and HYS TC-MB90 magnetic mount for a removable mount or an NMO drill through mount. All are on Amazon.

There are several discussions however, for simplicity, GMRS is a wide band service and FRS is narrowband. That means the intelligence doesn't vary as much in narrowband so radios sound softer and sometimes fail to trigger or open wideband repeaters. Midland radios are all narrowband, even on GMRS channels. The other issue is with privacy codes or tones. If a repeater has one tone on transmit and another on receive (split tones) Midland doesn't do allow that.

Suffice it to say, the rule works both ways if the radio is used in a service it isn't certified for, the FCC can come after the user. If the radio is advertised or marketed toward an uncertified use the seller is charged.

The rule applies to the SELLER if the radio is marketed as approved for a class it is not. They skirt the rule by marketing it in approved areas but make it modifiable to operate outside of the approved classes.

One thing that wasn't mentioned. Your local codes may require the penetration to be fire stopped. That may mean you need metal pipe or conduit where you go through the wall. All fire codes require a penetration of an interior firewall be fire stopped.

ASR's are typically near the gate.

Roof rights are granted by the property owner so the tower owners and radio system owners typically lease space from the property. Contacting the building management is the first step. The three key issues will be liability, mounting and power requirements.