Quick question, I have my equipment hooked up like follows, Rodio, Amp, meter, tuner and then the remote ant switch out at the tower. This is correct right? Just want to be sure.
Thanks,
AP
Thanks,
AP
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Question of the order of equipment on coax
- Thread starter airplane1
- Start date
If the radio has some means of measuring the SWR it sees, that order will work fine. If not, you might want to put another meter in line before the amplifier.
If your tuner has a meter in it for VSWR and PO then you can put your meter between the rig and the amp as Beetle said.
Set up looks fine and if the amp develops any type of impedance mismatch on the tuned input the rig should fold back putting out less power and you will be able to tell by PO on the meter.
Set up looks fine and if the amp develops any type of impedance mismatch on the tuned input the rig should fold back putting out less power and you will be able to tell by PO on the meter.
The original question, yes, it ought to do just fine.
The placement of the meter depends on what you are wanting to find out. If you want to know the SWR between radio and amplifier, put the meter between them and measure it. If you want to tune the antenna system for lowest SWR then put the tuner between the amplifier and the the tuner (or the radio and tuner if the amplifier is off). If you want to know the SWR of just the antenna system without the tuner in-line, then 'by-pass' the tuner or take it out of line.
An SWR meter compares the impedance behind it to the impedance in front of it (assuming that the impedance in front of it, the transmitter side, is 50 ohms). SWR meters are designed as 50 ohm instruments, which means that the input should also be 50 ohms. The output side, the antenna side, is assumed to be something other than 50 ohms.
- 'Doc
The placement of the meter depends on what you are wanting to find out. If you want to know the SWR between radio and amplifier, put the meter between them and measure it. If you want to tune the antenna system for lowest SWR then put the tuner between the amplifier and the the tuner (or the radio and tuner if the amplifier is off). If you want to know the SWR of just the antenna system without the tuner in-line, then 'by-pass' the tuner or take it out of line.
An SWR meter compares the impedance behind it to the impedance in front of it (assuming that the impedance in front of it, the transmitter side, is 50 ohms). SWR meters are designed as 50 ohm instruments, which means that the input should also be 50 ohms. The output side, the antenna side, is assumed to be something other than 50 ohms.
- 'Doc
There seems to be a preoccupation with heat and tuners. While there is some heat generated, it isn't near as much as it's made out to be, if the antenna is at least in the 'ball-park' for the band in use or a harmonic. It's a very safe bet that any losses in that tuner will be less than if that tuner isn't used. It's also a very good idea to use a properly tuned antenna, but, sometimes you can't for whatever reason. In situations like that a tuner is still a very viable option.
Tuners don't do miracles though...
- 'Doc
Tuners don't do miracles though...
- 'Doc
Not sure why you need a switch to bypass the amp unless it's some type of oddball amp. My transceiver doesn't even see the amp when it's either off or switched to stand-by. Also, the Low Pass filter seems redundant to me. If the transceiver and amp meet all the FCC specs, there is no need for additional filtering.
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