114BARRETT 4050 HF SDR TRANSCEIVER - INSTALLATIONPower SupplyWhen 24 V DC is supplied to the 4050 transceiver, the PEP Voice output powerwill achieve 150 W.Power output regulation is performed automatically based on the DC voltagepresented to the transceiver DC input connector. The Barrett 4022 Power Sup-ply is available in the BC402201 (24 V DC) version. This power supply version iscapable of operation with AC mains input voltage between 88 and 256 V AC.In base station installations where no mains supply is available, various Barrettsolar power supply solutions are available depending on the system configura-tion requirement.Note: Some installations use an AC battery charger to float charge the supply bat-tery. Battery chargers can produce electrical noise from the rectifier diodes. Thisnoise causes a static type of interference in the receiver. It may be necessary, there-fore, to switch off the battery charger whilst the transceiver is in use. If float charg-ing of batteries is required for installations with unreliable AC power supply, it isrecommended that BC402201 be used as it provides a three stage charge facility tomaintain a battery without the noise problem described above.Proximity of Transceiver to AntennaWhen using RG-58 coaxial cable from the transceiver to the antenna, a cablelength of no more than 30 metres is recommended. Should a run of more than30 metres be required, it is recommended that a low loss coax such as RG-213or RG-8 be used.It is recommended that the transceiver chassis is connected to ground (earth)using the post on the rear panel to stop pick-up of unwanted noise from localpower supplies and electrical equipment.
