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T55AM
T55AM
1970
1970
T55AM was a specialist 70-Watt continuously rated ground-to-air transmitter designed to meet UK Board of Trade regulations.
T55AM was a specialist 70-Watt continuously rated ground-to-air transmitter designed to meet UK Board of Trade regulations.
It was fully solid-state except for the conduction-cooled Tetrode thermionic valve in the final output stage.
It was fully solid-state except for the conduction-cooled Tetrode thermionic valve in the final output stage.
A particular feature was that the equipment was designed for remote controlled, unattended operation and no cooling fans, which could require maintenance, were involved.
A particular feature was that the equipment was designed for remote controlled, unattended operation and no cooling fans, which could require maintenance, were involved.
SSB1000T-R131SSB
SSB1000T-R131SSB
1970
1970
SSB1000T-R131SSB
SSB1000T-R131SSB
The SSB1000T was a 1000-Watt high power low frequency transmitter and the matching receiver the R131SSB.
The SSB1000T was a 1000-Watt high power low frequency transmitter and the matching receiver the R131SSB.
For long-range communication it is necessary to employ low frequencies in the range 2–30 MHz which can bounce around the ionosphere, and a modulation mode such as Single Sideband Suppressed Carrier (SSB).
For long-range communication it is necessary to employ low frequencies in the range 2–30 MHz which can bounce around the ionosphere, and a modulation mode such as Single Sideband Suppressed Carrier (SSB).
Under suitable atmospheric conditions this combination gave worldwide communication.
Under suitable atmospheric conditions this combination gave worldwide communication.
T10AM/R8GA
T10AM/R8GA
1971
1971
T10AM/R8GA low-power, VHF amplitude modulation, aviation equipment.
T10AM/R8GA low-power, VHF amplitude modulation, aviation equipment.
This combination of fixed station transmitter and receiver was designed to I.C.A.O. specifications for short-range ground-to-air applications mainly in the frequency band 119-136 MHz. Other frequency bands were also available.
This combination of fixed station transmitter and receiver was designed to I.C.A.O. specifications for short-range ground-to-air applications mainly in the frequency band 119-136 MHz. Other frequency bands were also available.
The transmitter had an RF power output of 10-Watts.
The transmitter had an RF power output of 10-Watts.
F9AM/F9U/F25FM
F9AM/F9U/F25FM
1971
1971
F9AM/F9U/F25FM 6th generation fixed station equipment based on Pye Europa mobile solid-state technology.
F9AM/F9U/F25FM 6th generation fixed station equipment based on Pye Europa mobile solid-state technology.
This was a compact, low-cost, mobile-based equipment suitable for use in remote control or extended local control applications.
This was a compact, low-cost, mobile-based equipment suitable for use in remote control or extended local control applications.
A number of versions were available including VHF AM or FM, UHF FM and also a UHF point-to-point link variant.
A number of versions were available including VHF AM or FM, UHF FM and also a UHF point-to-point link variant.
F252 Pegasus
F252 Pegasus
1973
1973
F252 Pegasus fixed station was a 7th generation fixed station transmitter-receiver based on Pye Olympic mobile solid-state technology.
F252 Pegasus fixed station was a 7th generation fixed station transmitter-receiver based on Pye Olympic mobile solid-state technology.
The equipment was designed expressly for the British Army for use in the UK Home Defence Project Mould network.
The equipment was designed expressly for the British Army for use in the UK Home Defence Project Mould network.
As with the M252 Pegasus mobile, this equipment was designed and successfully tested to withstand the electromagnetic pulse (EMP) created by the detonation of a nuclear weapon.
As with the M252 Pegasus mobile, this equipment was designed and successfully tested to withstand the electromagnetic pulse (EMP) created by the detonation of a nuclear weapon.
F400 Series
F400 Series
1973
1973
The F400 series 7th generation, slim-line fixed station equipment was based on Pye Olympic solid-state plug-in module technology.
The F400 series 7th generation, slim-line fixed station equipment was based on Pye Olympic solid-state plug-in module technology.
The compact construction was a major change in fixed station equipment construction.
The compact construction was a major change in fixed station equipment construction.
Receivers were no more than 44mm high and all the equipment were half the depth of previous designs.
Receivers were no more than 44mm high and all the equipment were half the depth of previous designs.
Transmitter power outputs of up to 100-Watts were available.
Transmitter power outputs of up to 100-Watts were available.
The equipment could be 19-inch rack mounted or table-top mounted.
The equipment could be 19-inch rack mounted or table-top mounted.
A80U UHF Amplifier
A80U UHF Amplifier
1977
1977
The A80U UHF amplifier was designed for use with Pye UHF fixed station and radio link transmitters to boost the transmit power of low-power equipment up to 80–100 Watts.
The A80U UHF amplifier was designed for use with Pye UHF fixed station and radio link transmitters to boost the transmit power of low-power equipment up to 80–100 Watts.
It was a self-contained unit using a force-air cooled 4CX250B co-axial Tetrode thermionic valve mounted in a resonant UHF cavity and covered the frequency range from 400 to 500 MHz in three different versions.
It was a self-contained unit using a force-air cooled 4CX250B co-axial Tetrode thermionic valve mounted in a resonant UHF cavity and covered the frequency range from 400 to 500 MHz in three different versions.
An input drive power of 5-Watts was needed to obtain full output.
An input drive power of 5-Watts was needed to obtain full output.
A100 1000-Watt VHF Linear Amplifier
A100 1000-Watt VHF Linear Amplifier
1978
1978
The A100 1000-Watt VHF linear amplifier was designed for use with Pye fixed station and radio link transmitters to boost the transmit power of medium-power equipment up to levels of 250–1000-Watts for long-range operation or wide area coverage.
The A100 1000-Watt VHF linear amplifier was designed for use with Pye fixed station and radio link transmitters to boost the transmit power of medium-power equipment up to levels of 250–1000-Watts for long-range operation or wide area coverage.
Due to the linear amplifier mode of operation the A100 could handle power inputs from a number of transmitters simultaneously, even though they were generating power at various frequencies (within the same band). It covered the frequency range from 68–174 MHz in three different bands and a total input drive power of 30-Watts was needed to obtain full output.
Due to the linear amplifier mode of operation the A100 could handle power inputs from a number of transmitters simultaneously, even though they were generating power at various frequencies (within the same band). It covered the frequency range from 68–174 MHz in three different bands and a total input drive power of 30-Watts was needed to obtain full output.
It was designed and manufactured by the Pye Telecom subsidiary in Finglas, Dublin
It was designed and manufactured by the Pye Telecom subsidiary in Finglas, Dublin
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