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Re: Original LDG-1000

 

I have a very similar setup (rig, ALS-1306, LDG-AT1000). I have a couple tips for you.
1) Turn off autotune on the tuner. Otherwise, it will try to tune at inopportune times. This means you need to hit the tune button to do a tuning cycle.
2) Make sure the runner is set to tune to 1.5 SWR.?
3) Tuning must be done at a low power (5-10 watts) and the amp's 'operate' switch turned off. Then after tuning, power up, amp on, and go!
4) You mentioned an antenna switch. The tuner does not know which antenna you may have selected. So if you switch antennas, the stored adjustments will not be correct!

1 and 2 above require button manipulation on the tuner, and I'm away from the station at the moment. If you can't figure it out, let me know and I'll look up the sequence.

Bob N3FM?

On Tue, Jan 24, 2023, 10:54 AM <lsyver@...> wrote:

I can't seem to find much.. actually none... activity regarding the LDG-1000.? I bought it used about 8 yrs. ago and have never really used it since then.? Not knowing a whole lot about tuners, Ive never really pursued it since my antenna had an acceptable SWR, as is.? However, I now have an ALS-600 solid state amp and it is VERY picky about SWR levels.? I've tried to use the LDG-1000 to improve my SWR but the amplifier isn't buying it.? The SWR is between 1.2 and about 1.5.? Which makes me the LDG-1000 isn't doing much.? The amplifier manual says you have to keep the SWR at about 1.2 -1, which is very low.? Am I wasting my time beating a dead horse.? With that I mean, is this really a usable tuner for an application like this or am I wasting my time messing with it.? Just to make sure I'm doing this right... I have my components connected, like this:

Transceiver antenna OUT is wired to the Ameritron ALS-600 amplifier IN
Amplifier OUT to my SWR meter IN? (this meter is probably redundant since the amplifier has an SWR meter also)
SWR meter OUT to the LDG-1000 IN
LDG-1000 OUT to the Transmitter side (port A) of my MFJ antenna switch box, with the selector switch set to "A".
On the Antenna side of the switch box, the antenna is connected to the "#1" port and the selector switch is set to the"1" position.

When I transmit, the ALS-600 amplifier faults due to high SWR...
When should I activate the LDG-1000 to correct the antenna SWR?? Does the amplifier also have to be powered up, prior to activating the LDG-1000 to correct the SWR?
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