Andreas, I've had no problems at all with any of the following switch-mode power supplies:
DuraComm LP-25, 22 amperes continuous, 25 amperes short-term, about US$ 122 Samlex SEC1223, 23 amperes continuous, 25 amperes short-term, about US$ 106 Astron SS-30, 25 amperes continuous, 30 amperes short-term, about US$ 114 The above power supplies can be purchased through commercial communications supply houses, such as Tessco, Talley, and Hutton. The Samlex and Astron power supplies are also available through Amateur Radio suppliers, such as AES and HRO. Despite some uninformed claims to the contrary, the above switch-mode power supplies do not generate interference with nearby radio systems- which is why they are recommended by the majority of commercial radio manufacturers. 73, Eric Lemmon WB6FLY -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Andreas Papagapiou Sent: Wednesday, January 07, 2009 8:39 AM To: [email protected] Subject: [Repeater-Builder] 30A power supply suggestion Hi all and Happy New Year! I'm looking for a power supply for our local repeater. We are currently using a cheap 20A power supply, but I'm worried it may fail under heavy usage and feed our equipment with higher voltage (it happened in the past with a similar power supply which supplied 35V instead of 13.8) What I want is a reliable 13,8V, 30A power supply that can provide at least 15A at 100% duty cycle. It also needs to be light (i.e. switching, not transformer type), so that I won't have to pay a fortune to have it shipped here. Any suggestions on models or online shops I can order from? cheers, Andreas - 5B8AP
