question: Why is H+ useless in 2019 when it was the standard back in 2010?
comment: Generally speaking, when fourth generation connections are unavailable, the available cell signal is soo weak that barely any useful connection can be established. 3g services don't cover much more range than 4g services, and the range of low frequency LTE can often extend further than many 3g services
passages: In 2012 Germany submitted the new HF-FF technology to NATO and NILE program, for ratification and adoption respectively. In 2015 the NILE program approved the adoption of the new HF-FF technology, with full support anticipated for 2016.
   Section::::Exposure and safety issues.:United States.:Current policies in the United States.:Military applications.
  
  Since World War II, the U.S. Army relied on hexavalent chromium compounds to protect its vehicles, equipment, aviation and missile systems from corrosion. The wash primer was sprayed as a pretreatment and protective layer on bare metal.
  
  From 2012-2015, Army Research Laboratory conducted research on a wash primer replacement, as a part of the DoD's effort to eliminate the use of toxic wash primers in the military. Studies indicated that the wash primers contained hazardous air pollutants and high levels of volatile organic compounds.
   The H107L was the next Hubsan X4 model. It included a set of four LEDs on the ends of its four arms (hence the "L" designation), allowing the operator to determine its facing direction even in daylight settings. It also was given shorter blade axles on its propellers to help stabilize flight. It was eventually re-designated H107P (for "plus", though not with the same meaning as the plus symbol, "+", about which see below).
  
  Section::::H107C.
   The HL7 aECG standard was created in response to the Food and Drug Administration’s digital electrocardiogram initiative which was introduced November, 2001. The FDA initiative required ECG waveforms and annotations submitted to the FDA to have a standard format for the data. At the time, no current ECG waveform standards met all the FDA's needs. As a result, the FDA, sponsors, core laboratories, and device manufactures worked together within HL7 to create a standard to meet the FDA requirements.
   Until 2004, the state Department of Transportation chose not to sign H-201 as such, instead retaining the designation Route 78. Reasons given included the following:
  
  BULLET::::- inability to render the new route number in a legible manner (because it has four characters, longer than the one to three characters of any other Interstate, it is necessary to use the thinnest font to render the number, and the shield is wider than the standard Interstate shield)
  
  BULLET::::- encouraging motorists to use the newer and better designed H-1
  
  BULLET::::- avoiding confusion with Interstate H-2
   A proposal for a NASA standard ground-based version of HAL named HAL/G for "ground" was proposed, but the coming emergence of the soon to be named Ada programming language contributed to Intermetrics' lack of interest in continuing this work. Instead, Intermetrics would place emphasis on what would be the "Red" finalist which would not be selected.
   H1 lamp
  
  The H1 is a halogen lamp designed for use in automotive headlamps and fog and driving lamps. It has also been widely applied in emergency vehicle lights.
  
  Section::::Origin.
  
  The H1 was the first halogen lamp approved for automotive use. It was introduced in 1962 by a group of European bulb and headlamp manufacturers. The bulb was not approved for use in the US until 1997.
  
  Section::::Specifications.
  
  Section::::Specifications.:Base.
   The first dual-filament halogen bulb to produce both a low and a high beam, the H4 (60/55 W @ 12 V, 1650/1000 lm ±15% @ 13.2 V), was released in 1971 and quickly became the predominant headlamp bulb throughout the world except in the United States, where the H4 is still not legal for automotive use. In 1989, the Americans created their own standard for a bulb called HB2: almost identical to H4 except with more stringent constraints on filament geometry and positional variance, and power consumption and light output expressed at the US test voltage of 12.8V.
   Daala is projected to eventually perform as well as if not better than other modern formats. The developers want to rely less on improving traditional design principles incrementally as such effort is observed to deliver decreasing returns after many years, and tends to grow complexity. (All widely adopted designs to date share the same basic design that dates back to H.261 from two decades ago.) Instead, the higher risk of researching and trying new basic techniques is expected to yield unprecedented and potentially more useful algorithms. Such an approach also makes software patent infringement less likely.
   After July 1986, Zippo began including a date code on all lighters showing the month and year of production. On the left of the underside was stamped a letter A–L, denoting the month (A = January, B = February, C = March, etc.). On the right was a Roman numeral which denoted the year, beginning with II in 1986. However, in 2001, Zippo altered this system, changing the Roman numerals to more conventional Arabic numerals. Thus a Zippo made in August 2004 was stamped H 04.
  
  Section::::Construction.
   Prince Edward Island, a province within Canada is the only instance of a province-wide attempt at implementing the HL7 interoperability standard. It has been standards compliant with the following characteristics of HL7:
  
  BULLET::::- (CeRx) Messaging Standard (HL7 v3).
  
  BULLET::::- Standards Collaborative through HL7 Canada.
  
  BULLET::::- Set of 78 messages.
  
  BULLET::::- Deemed “Stable for Use” in Canada (V01R04.2 + Addendum).
  
  Section::::Locations.:North America.:Mexico.
   In 2013, Sigma announced that the lens would be replaced by a redesigned model designated as the Sigma 30mm 1.4 DC HSM A; the new lens went on sale in March of that year in Canon, Nikon, and Sigma mounts.
   The same improvements would also be applied to the shorter "Para" version. As of 2019, it has not been adopted for general service, but it was has been suggested that special forces unit could use it.
  
  Section::::Foreign sales.
   BULLET::::- 1996 – Mercedes-Benz NECAR 2
  
  BULLET::::- 1997 – Mercedes-Benz NECAR 3
  
  BULLET::::- 1999 – Mercedes-Benz NECAR 4
  
  BULLET::::- 2000 – Mercedes-Benz NECAR 5
  
  BULLET::::- 2002 – Mercedes-Benz F-Cell based on the Mercedes-Benz A-Class
  
  BULLET::::- 2005 – Mercedes-Benz F600 Hygenius
  
  BULLET::::- 2009 – Mercedes-Benz F-CELL Roadster
  
  BULLET::::- 2009 – Mercedes-Benz F-Cell based on the Mercedes-Benz B-Class
  
  Fiat:
  
  BULLET::::- 2001 – Fiat Seicento Elettra H2 Fuel Cell-hybrid vehicle
  
  BULLET::::- 2003 – Fiat Seicento Hydrogen-hybrid vehicle
  
  BULLET::::- 2005 – Fiat Panda Hydrogen-Fuel cell
  
  BULLET::::- 2008 – Fiat Phyllis-Fuel cell
  
  BULLET::::- 2008 – Fiat Panda-Fiat Panda HyTRAN
  
  Ford:
   Tyco's Solarlok became a market leader for a period in the late 2000s, but a number of factors conspired to push it from the market. Among these was the fact that the system had two sets of cables and wires, which led to considerable annoyance in the field when equipment from different vendors could not be plugged together. By 2011, the MC4 was already in a strong leadership position, which led to the introduction of compatible products from a variety of major connector vendors. Among these are the Amphenol Helios H4 and SMK PV-03. 
  
  Section::::Description.
   , three configurations are planned: H3-30, H3-22, and H3-24.
   GM HydroGen4
  
  HydroGen4 is the successor of the fuel cell vehicle HydroGen3, developed by General Motors/Opel and presented in 2007 at the IAA in Frankfurt, Germany. It is expected that automotive hydrogen technology, such as the type featured in the HydroGen4, may enter the early commercialization phase in the 2015 - 2020 time frame.
  
  Section::::Specification.
   Camera maker Hasselblad merged with digital imaging firm Imacon and partnered with Fuji to design and produce a new line of digital-friendly medium-format cameras, the H-Series. Since the manufacturer plans to sell digital backs integrated with the camera, other makers of digital backs are far less likely to be able to sell backs for this camera.
   On 3 February 2014, Hasselblad introduced a restyled Sony α99 as the Hasselblad HV. According to the company's press-release, their version of the α99 is "tough as nails", featuring more robust construction than the original.
  
  On 26 November 2014, Hasselblad announced the Stellar II based on the DSC-RX100M2. As of now, there is no Stellar III or IV based on the already released DSC-RX100M3 and M4.
   BULLET::::- 2000 – Ford Focus FCV-Fuel cell. Note however that Ford Motor Company has dropped its plans to develop hydrogen cars, stating that "The next major step in Ford’s plan is to increase over time the volume of electrified vehicles".
  
  BULLET::::- 2006 – F-250 Super Chief a "Tri-Flex engine" concept pickup.
  
  Forze Hydrogen-Electric Racing Team Delft
  
  BULLET::::- 2016 – Forze-Fuel cell
  
  General Motors:
  
  BULLET::::- 1966 – GM Electrovan-Fuel cell
  
  BULLET::::- 2001 – HydroGen3-Fuel cell
  
  BULLET::::- 2002 – GM HyWire-Fuel cell
  
  BULLET::::- 2005 – GM Sequel-hybrid vehicle
  
  BULLET::::- 2006 – Chevrolet Equinox Fuel Cell
  
  BULLET::::- 2007 – HydroGen4
  
  Honda:
   The H1 lamp was the first tungsten-halogen headlamp light source. It was introduced in 1962 by a consortium of European bulb and headlamp makers. This bulb has a single axial filament that consumes 55 watts at 12.0 volts, and produces 1550 lumens ±15% when operated at 13.2 V. H2 (55 W @ 12.0 V, 1820 lm @ 13.2 V) followed in 1964, and the transverse-filament H3 (55 W @ 12.0 V, 1450 lm ±15%) in 1966. H1 still sees wide use in low beams, high beams and auxiliary fog and driving lamps, as does H3. The H2 is no longer a current type, since it requires an intricate bulb holder interface to the lamp, has a short life and is difficult to handle. For those reasons, H2 was withdrawn from ECE Regulation 37 for use in new lamp designs (though H2 bulbs are still manufactured for replacement purposes in existing lamps), but H1 and H3 remain current and these two bulbs were legalised in the United States in 1993. More recent single-filament bulb designs include the H7 (55 W @ 12.0 V, 1500 lm ±10% @ 13.2 V), H8 (35 W @ 12.0 V, 800 lm ±15% @ 13.2 V), H9 (65 W @ 12.0 V, 2100 lm ±10% @ 13.2 V), and H11 (55 W @ 12.0 V, 1350 lm ±10% @ 13.2 V). 24-volt versions of many bulb types are available for use in trucks, buses, and other commercial and military vehicles.
   Although H.261 was first approved as a standard in 1988, the first version was missing some significant elements necessary to make it a complete interoperability specification. Various parts of it were marked as "Under Study". It was later revised in 1990 to add the remaining necessary aspects, and was then revised again in 1993. The 1993 revision added an Annex D entitled "Still image transmission", which provided a backward-compatible way to send still images with 704×576 luma resolution and 352×288 chroma resolution by using a staggered 2:1 subsampling horizontally and vertically to separate the picture into four sub-pictures that were sent sequentially.
   Revision A was released in 1968. Regarding Revision B from 1976, it "added radiation symbols to the dial, indicating that the luminous markers were radioactive, H3 for tritium. Revision D (1986) expanded the scope of the specification to encompass a wider range of watches."
  
  Pilots, divers, and other specialties continue to have military watches available for issue.
  
  Section::::Dial font.
   The H series are tethered backs available for many different camera mounts. Camera back connects through standard 6pin IEEE 1394. Originally this type of camera back was released as the "Lightphase", a continuation of Phase One's previous tradition of using the name "phase" in the name of the product. This changed with the release of the "H20", which was originally called "Lightphase H20" but the name was changed to "Phase One H20" for better brand recognition.
  
  Section::::Products.:Digital backs.:Scan backs.
   To find the best solution, the Advanced Television Systems Committee assigned the Open Mobile Video Coalition (OMVC) to test both systems. The test report was presented on May 15, 2008. As a result of this detailed work by the OMVC, a final standard draft was designed by the Advanced Television Systems Committee, specialist group S-4. ATSC-M/H will be a hybrid. Basically the following components of the proposed systems are used:
  
  BULLET::::- RF-Layer from the MPH standard
  
  BULLET::::- Deterministic frame structure from A-VSB
  
  BULLET::::- Signaling of service designed on the base of the established mobile standards
  