Here are a few suggestions on ways in which you may be able to increase 4m activity in your area (they worked for me):As well as being a super "local natter" band, 4m can sometimes exhibit enhanced propagation: tropospheric ducting is not as common as on 2m or 70cm, but Sporadic-E can often be heard during the summer months. Globally, the International Telecommunication Union (ITU) oversees how much radio spectrum is set aside for amateur radio transmissions.

For class "A" operators in 2014, 70.000-70.030 MHz, and in 2015, 2017, & 2018, 70.150-70.180 MHz were allocated under specific restrictions (25 W ERP, Horiz.

70MHz Band: 70.0 – 70.5MHz 70MHz Band Licence conditions. For Full Licensees the power limit is restricted to 160W (22dBW) – lower than normal. A station using one of these transceivers would therefore miss answers to their "CQ" calls, and may unwittingly block the calling channel, or cause QRM to an existing QSO. Since Autumn 2002, over one thousand Ascom SE550s and many Philips FM1000 series sets have been "recycled" in this way.Although modern PMR gear uses synthesized oscillators, there are still a number of crystal-controlled sets still in use - just two or three channels is really all that is required to be effective on 4m FM. PSK, RTTY, MFSK, JT65, JT9, FT8, FT4 & JS8CALL Frequencies - SV1GRB Amateur Radio website This used to be a nuisance, since it brought in loads of QRM from broadcast stations in Eastern Europe. 4G LTE Frequency Bands & Spectrum Allocations LTE is designed to work across a number of frequency bands – E-UTRA operating bands- currently ranging from 450 MHz up to 3.8GHz. Amateur radio frequency allocation is done by national telecommunication authorities. In the UK the 70MHz (4 Metre) band is allocated with Secondary status. This may cause difficulty on the Amateur band, where signal levels are often weaker than in the PMR environment. It is available on the basis of non-interference to other services inside or outside of the UK. As a result, there is a lot of camaraderie on the band, and long Before World War II, British radio amateurs had been allocated a band at 56 MHz. Der Frequenzbereich wird vornehmlich in Frequenzmodulation (FM) genutzt. Meanwhile, in 1948, 72-72.8 MHz was allocated to France (till 1961).In 1956, after several years of intense lobbying by the On the occasion of the International Geophysical Year 1957-1958, the following countries have been allocated frequencies between 70-72.8 MHz.

On December 19, 2018 BNetZa (the German regulator) published announcement 414/2018 issuing immediate access to 70.150-70.200 MHz for German class "A" (full) licensees up until December 31st. The 4 metre band shares many characteristics with the adjacent While Sporadic E permits Europe wide communication, it can be a mixed blessing as the band is still used for wide Access to the 4 metre band has always been limited by access to suitable 4 metre transceivers.

In the British Isles, a considerable amount of de-comissioned VHF low band (68-88MHz) PMR equipment has found its way into the hands of Amateurs and been converted for use on 4m. Some stations seem to think that all FM operation must be vertically polarised, but there's no reason why this should be so!I've had an immense amount of enjoyment from 4m since 1992, and made well over five thousand contacts on the band (over a thousand of them during 2006!). LTE is developed […] a certain period. As of October 2014, their 70 MHz transceiver is worldwide the only one available. In some parts of the UK the band is little utilised, while in others, notably In continental Europe the band is still primarily used for more serious DX operation. Understanding the 70MHz Band Plan However, in recent years, most of the broadcasters have moved into Band II, allowing Amateur operation to take over.As with the other VHF bands, greater range can be achieved by switching from omnidirectional vertical aerials to horizontal beams.