One note I should add - after the "INFO" procedure (emits "L0" with yellow
LEDs, followed by string of individual flashes with Red LED), I noticed relays
clicked once at the end of the red LED sequence.
On Sunday, January 14, 2024 at 05:31:25 PM MST, <wb0...@yahoo.com> wrote:
Thanks, Myron -
I've plugged my paddle (tip = dit, ring = dah) into the side jack of the tuner.
I can press the Dah (RING) contact and after 2 seconds while in sleep mode, it
appears to enter tune-ready (blinking green LED) condition.
During blinking green LED condition, application of 5 watts of carrier at 3.5
MHz yields no tuning activity.
I tried this -
Press/hold DAH until steady green LED
Release DAH button while steady green LED
Apply RF, no sign of activity from the tuner
As that test yield no new information, I tried "info" (using the front panel
buttons, not the keyer paddle input) -
Response (in CW, with yellow LED) - "L0" followed by brief red LED flash about
1 per second, persisting for about 30 seconds.
Swapped battery (existing battery reading 8.83V open circuit; replacement
battery reading 9.11V open circuit.)
Same responses.
On Sunday, January 14, 2024 at 05:12:20 PM MST, Myron Schaffer
<myronschaf...@gmail.com> wrote:
I have to push and hold the tune button until the green LED blinks from an
unpowered state. If you mess with the buttons and get a blinking Yellow, you’ll
have to wait 4-seconds until the tuner goes asleep. The tune function can only
be invoked from a sleeping state.
Once you get it to blink (ready for tuning) if you continue to hold it, the
green LED goes out and enters the Deep Tune mode where it will go through an
entire search algorithm for lowest possible SWR once you apply some RF.
If that isn’t working, replace the switches because they’re probably worn out
and bounce. This will cause symptoms you have too. I get around that by
plugging in a 3.5mm TRS cord to the side and a set of paddles. Push the DAH key
for 2 seconds to get the green led to blink. That’s how I do remote tuning; I
have a 20 foot cord. Neat
Myron
> On Jan 14, 2024, at 4:17 PM, wb0gaz via Elecraft <elecraft@mailman.qth.net>
> wrote:
>
> I've been lent a T1 tuner by a local ham friend with "can you get it to
> work at your station?" request, following a "no trouble found" round trip to
> Elecraft and back late last year.
>
> I've never used a T1 before.
>
> Station is a Kenwood TS940 set to minimum TX power (about 5 watts); antenna
> is a 40M full wave wire loop. Test TX frequencies are 7 MHz (expect good
> match) and 3.5 MHz (expect poor match that the tuner can accommodate).
>
> After reading the user manual (dated 2018), I have tried to reproduce the
> issue using the following steps, to no avail:
>
> 1. Tap PWR button - yellow LED flashes about 4 times.
> 2. While yellow LED is flashing, I can set the tuner to active/inactive mode
> (BYP button tapped while yellow LED flashing, yields green or yellow steady
> LED indication for a few seconds, and sound of relays switching with the
> change of setting.)
>
> 3. With the tuner in active state (step 2 above), I tried to tune for SWR:
> 4. Press/hold PWR button to preset for TUNE; green LED flashing for a few
> seconds.
> 5. While green LED flashing, key TX; no relay activity heard, green LED goes
> out.
>
> Steps 3-5 are exhibiting same result as my local friend reported - no
> response (relay activity or change to match between TX and Antenna) from
> tuner to RF from TX. The tuner's trip to Elecraft (with no trouble found) was
> a result of the same experience.
>
> Am I doing something wrong?
>
> Thanks!
>
>
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