I got my hands on a pre loved mirage b-1030, any body here have any experience with it?
I'd appreciate your thoughts.
I'd appreciate your thoughts.
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Mirage B-1030 thoughts?
- Thread starter Singularity35
- Start date
No experience with that amp but just with the B-108 model......10 watts in and 80 watts out. Mirage didn't make the best stuff but not the worst either. The big thing is to keep them cool and not overdrive them. Some people claim that the preamp tends to go out easy with them. I do know the the preamp in my B-108 works very well and just not in making the meter read higher either. It actually will take a weak noisy signal and make it full quieting. I wouldn't mind owning a B-1030.
Thanks Captain KW. The preamp.switch on mine seems.frozen. It would be nice to have the 20/15 db preamp but I really got.this for a steal and I can't complain. Everything else seems to work fine. Will a 50 amp supply be sufficient for full power?
The B-1030-G produces at least 300 watts of VHF R.F. power and is not to be taken lightly.
Severe R.W. burns can be sustained at this power level!
Power Supply: This unit was designed to operate at 13.8 volts with a power supply that provides
60 amperes continuous current. This voltage is measured under full load. The nominal current
draw of this amplifier is 46 amps, and should be considered the minimum current value. Due to
power transistors matching, some amplifiers may draw up to 50 amps and put out up to 350 watts
R.F. power. Therefore, a power supply should be selected that delivers at least 55 to 60 amps
more than the nominal current value.
Amplifier: This unit was designed to operate at I.C.S. - Intermittent Communications Service
(50% Duty Cycle, i.e., 5 minutes transmitting, 5 minutes receiving). The amplifier duty cycle
determines the dissipation rating. Ref. 1992 Radio Amateur duty Handbook page 5-9.
Keep the drive down to 5 watts and the PS should be fine
All the Best
Gary
Severe R.W. burns can be sustained at this power level!
Power Supply: This unit was designed to operate at 13.8 volts with a power supply that provides
60 amperes continuous current. This voltage is measured under full load. The nominal current
draw of this amplifier is 46 amps, and should be considered the minimum current value. Due to
power transistors matching, some amplifiers may draw up to 50 amps and put out up to 350 watts
R.F. power. Therefore, a power supply should be selected that delivers at least 55 to 60 amps
more than the nominal current value.
Amplifier: This unit was designed to operate at I.C.S. - Intermittent Communications Service
(50% Duty Cycle, i.e., 5 minutes transmitting, 5 minutes receiving). The amplifier duty cycle
determines the dissipation rating. Ref. 1992 Radio Amateur duty Handbook page 5-9.
Keep the drive down to 5 watts and the PS should be fine
All the Best
Gary
Yes if the amplifier was 100% efficient...but most are only about 50%....
Hence the higher current requirement....
Those specs came from the manual.
All the Best
Gary
http://r-onetrading.com/download/mirage/B-1030-G.pdf
Hence the higher current requirement....
Those specs came from the manual.
All the Best
Gary
http://r-onetrading.com/download/mirage/B-1030-G.pdf
Thanks, I downloaded the manual a couple days ago. I was just wondering how they violate the laws of physics. Good explanation. Thanks again.
Like Gary explained, nothing is ever 100% efficient especially amplifiers. That's why they get hot, the excess heat is a result of inefficiencies.The power that creates that heat has to come from somewhere. For general figuring of current assume 50% efficiency and you will be quite close.
50 amp supply is all I can source locally. Gonna have to stick with 5 watts triggering for the moment.
BTW, guy selling the PSU said I can use two in parallel to get more amps. Is this true? If so, any special tricks?
Thanks in advance.
BTW, guy selling the PSU said I can use two in parallel to get more amps. Is this true? If so, any special tricks?
Thanks in advance.
Watched some vids and did some research. As you said, it has to be same kind of supply but it seems that you have to set one with voltage slightly lower than the other.
No. Both supplies are to be the same voltage. Exactly. Otherwise one will force more current and the load will not be balanced between the two supplies. Some supplies allow you to interconnect them with a jumper on the back that slaves one supply off of the other and ensures that the load is balanced. Some Astron supplies do this. A single supply is always better but using two (or more) is acceptable as long as it is done properly.
