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Joined: Mon, Jan 3rd 2005, 15:16 Roles: N/A Moderates: N/A

Latest Topics

Topic Created Posts Views Last Activity
Remote Antenna Tuner Jul 22nd 2021, 11:12 2 4,440 on 23/7/21
CushCraft R-9 high SWR Oct 9th 2016, 13:00 1 5,020 on 9/10/16

Latest Posts

Topic Author Posted On
Remote Antenna Tuner W2NM on 22/7/21
Ok I have not ever used wire antennas but I suddenly got the urge and Im stumped regarding hooking up this New SG-235 remote tuner that just arrived. Does anyone have experience with these?
First I have a flagpole antenna with a ladder feed, power to the top long section and the ground to the first bottom section.

1. This SG-235 tuner has one post only at the top for the positive wire, do I connect the other side of the ladder to the grounding lug on the tuner?

2. The coax feed of this tuner is strange, the shield and the center feed have continuity between them, My ohm meter shows that, is this a short?

3: Why no continuity from the coax shield to the ground lug of the tuner? NOTE: My hard line run is grounded so is this an issue?

4. I have a power supply to power up the tuner,,Red (power) and I see a black and purple wire soldered together assuming this is the ground, correct?

5. Why does the (Ground) soldered black/purple wire have continuity to the Hot Post on top of the tuner?

Please help, this was a very expensive tuner which Im sure Im doing something wrong.
CushCraft R-9 high SWR W2NM on 9/10/16
Ok Im technologically challenged, I took my R9 down yesterday because all of a sudden my SWR is off the charts,,it looks ok so far but heres the dumb question: regarding the MN8 matching box that has the antenna feed---should there be a direct short between the female pin hole and the outer threads which I thought was always ground????

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