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The tube duct diameter is slightly larger than 3.25, so I'll use that dimension to be conservative. The velocity measured with my wind wizard 1/2 inch away from the tube duct outlet is 3.6 MPH, 6 inches away from the duct outlet velocity is 2.8MPH so again I'll use the conservative number...
The temp sensor is directly in the air stream off the tube so the temperature likely isn't dropping much at all.
I don't know the volume of air, I'll measure the velocity tonight and calculate the CFM. It's the stock AL-1500 blower on high speed.
What is the maximum safe exhaust air temperature I should see off of a 3cx1500a7 in a AL-1500? This amp has tube stack mod to keep the band switch and tank circuit area cooler, plus the fan is on the high speed setting. Also running @ 4000 volts on the plate with the upgraded 10 capacitor...
There is a stud mount version of the Performer 5000, I have one and posted a link to it above.
RG58 will handle far above 400 watts, I have run 1.5KW through it for extended periods. (If you want zero coax issues in a mobile use RG400) The real limit is mag mounts, I have never seen one...
I run the antenna in the link below on my mobile with good success. It's the normal 3/8" stud mount so it will fit on any 3/8" mount. Mine is on a well grounded breedlove puck mount. Swr is very good, forward power is 900-1200 watts in the mobile depending on alternator temperature and...
Posting this in case anyone else runs into an issue of the ATR-30 tuner reflect meter pegging at higher power levels.
I think I have resolved the reflect meter hitting the stop peg when running at legal limit. I noticed that any time I was on a band that the transmitter capacitor was more open...
I go by 1340 NEBRASKA, 1340 NEBRASKA mobile, or WDX134 on 16 LSB. I have my extra class amateur ticket, but won't share that online for op spec. 1340 is the displacement of my Hayabusa.
Yes, there you can have an antenna matcher (tuner) between the SWR meter and antenna. My current equipment lineup is: radio - grounding switch - linear - SWR/power meter - antenna matcher - lightning arrestor - antenna.
If all equipment in line has a characteristic impedance of 50ohms and the...
The meters on my sb 220 have the diode protection already on them.
Thank you again everyone for helping me get it running again! I appreciate the guidance!
I am having an issue with the reflect meter jumping up on my ATR-30 tuner anytime the forward power is near legal limit. The tuner and antenna system are not arcing, I have heard that before when it was badly mistuned. I'm thinking the meter diodes are breaking down. Also it seems like it is...
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