Re: [Repeater-Builder] GE Master II Pa decks

2009-02-11 Thread Doug Bade
I do not largely recommend the Astron BB series for proper battery maintenance. The issue is the charge voltage is directly related to the operating voltage so to se the appropriate float voltage you need to tweak the operating voltage pot to a lower level and the charge current is strictly res

Re: [Repeater-Builder] GE Master II Pa decks

2009-02-10 Thread Mike Pugh
Nate Duehr wrote: > Careful.. > > 1) You should never let a lead-acid battery go "completely down", not even a > so-called "deep-cycle" one, if you want it to last a long time. Look at the > manufacturer's specs and build a voltage-based cut-off switch that will shut > down the output before they

RE: [Repeater-Builder] GE Master II Pa decks

2009-02-10 Thread Nate Duehr
Careful.. 1) You should never let a lead-acid battery go "completely down", not even a so-called "deep-cycle" one, if you want it to last a long time. Look at the manufacturer's specs and build a voltage-based cut-off switch that will shut down the output before they go below the manufacturer's

Re: [Repeater-Builder] GE Master II Pa decks

2009-02-10 Thread Mike Pugh
Doug Bade wrote: > The loaded voltage is about 12.5 to 12.8 comparable to what would be > in the trunk of a car starting at 13.8 at the battery alternator > connection.. including voltage drop... > That was the design anyhow... Astron's or eq are some what of a > problem as they really do not sa

Re: [Repeater-Builder] GE Master II Pa decks

2009-02-10 Thread Doug Bade
The loaded voltage is about 12.5 to 12.8 comparable to what would be in the trunk of a car starting at 13.8 at the battery alternator connection.. including voltage drop... That was the design anyhow... Astron's or eq are some what of a problem as they really do not sag at all.. 13.8 all day all

Re: [Repeater-Builder] GE Master II Pa decks

2009-02-10 Thread Mike Pugh
Doug Bade wrote: > Mid power Mastr II stations used 15 amp factory power supplies...100w > stations used 30 amp power supples.. > so.. probably less than 15 amps.. maybe 10-12.. > Apparently I am going to be inheriting the care and feeding of some MastrII's. First order of business is to get b

Re: [Repeater-Builder] GE Master II Pa decks

2009-02-10 Thread AJ
Let me clarify - this is a Mid Power Mastr II station, however, it has a high power P/S (original 15 amp power supply was repurposed). This factory supply at no load typically sits around 15 VDC with 121 VAC input. On Tue, Feb 10, 2009 at 1:30 PM, Doug Bade wrote: > Mid power Mastr II stat

Re: [Repeater-Builder] GE Master II Pa decks

2009-02-10 Thread Doug Bade
Mid power Mastr II stations used 15 amp factory power supplies...100w stations used 30 amp power supples.. so.. probably less than 15 amps.. maybe 10-12.. Reducing the voltage to 12.8 from the batteries will significantly lower the output power relative to 13.8v power supplies too..Factory powe

Re: [Repeater-Builder] GE Master II Pa decks

2009-02-10 Thread AJ
% of rated power out. >> >> Remember, you can use only the driver if you need low power out. >> >> Charles Miller >> >> >> -- >> *From:* Repeater-Builder@yahoogroups.com [mailto: >> repeater-buil...@yahoogroups.com] *On Behalf Of *AJ >>

Re: [Repeater-Builder] GE Master II Pa decks

2009-02-03 Thread AJ
ogroups.com] *On Behalf Of *AJ > *Sent:* Tuesday, February 03, 2009 10:04 AM > *To:* Repeater-Builder@yahoogroups.com > *Subject:* Re: [Repeater-Builder] GE Master II Pa decks > > With regard to the Intermittent Duty 50 watt Stations, what is the > lowest these will tune down to wi

RE: [Repeater-Builder] GE Master II Pa decks

2009-02-03 Thread Ham-Radio
ast 24 hours. Nate WY0X -Original Message- From: Repeater-Builder@yahoogroups.com <mailto:Repeater-Builder%40yahoogroups.com> [mailto:Repeater-Builder@yahoogroups.com <mailto:Repeater-Builder%40yahoogroups.com> ] On Behalf Of Randy Sent: Sunday, February 01, 2009 8:24 AM To: Repeat

Re: [Repeater-Builder] GE Master II Pa decks

2009-02-03 Thread AJ
ng the PA to save it from overheating > and dying, as it's not rated for 100% continuous duty at full power in the > mobile rig with the small heatsink. The MASTR II REPEATER PA is a giant > heavy thing with plenty of heatsink fins, 19" wide and multiple RU tall, > that is EIA r

RE: [Repeater-Builder] GE Master II Pa decks

2009-02-02 Thread Nate Duehr
s-duty cycle at 110W for at least 24 hours. Nate WY0X -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Randy Sent: Sunday, February 01, 2009 8:24 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] GE Master II

[Repeater-Builder] GE Master II Pa decks

2009-02-01 Thread Randy
Hi group whats the deal with the GE Master II PA decks needing to use a ferrite isolator with a 50 ohm dummy load and a low pass filter between the PA and the High Q duplexer. Is this something that most do with the 75 and 100 w Pa's We just replaced one in a Master II Mobile radio which laste