T1 ATU for 200mW WSPRlite

[MaverickNH]

I'm planning to do some camping and will bring along a KX3Helper EndFed 40-6m
antenna with 9:1 Unan, T1 ATU and SOTAbeams WSPRlite to run on 30m from a
USB battery bank.

The T1 requires 0.5W to tune but the WSPRlite output is 0.2W. Any thoughts
on options other than tuning up with another radio (like KX2 w/o ATU)?

BRET/N4SRN



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[af4b]

Bret

I assume from your gear list that the 30 meter WSPRlite is the only transmitter. In that case, a resonant 30 meter antenna either a center fed dipole, a ¼ wave vertical with radials or an end fed ½ wavelength wire with a L match should satisfy the antenna requirement.

Bill AF4B

Sent from Mail for Windows 10

From: MaverickNH
Sent: Sunday, June 30, 2019 7:47 AM
To: [hidden email]
Subject: [Elecraft] T1 ATU for 200mW WSPRlite

I'm planning to do some camping and will bring along a KX3Helper EndFed 40-6m
antenna with 9:1 Unan, T1 ATU and SOTAbeams WSPRlite to run on 30m from a
USB battery bank.

The T1 requires 0.5W to tune but the WSPRlite output is 0.2W. Any thoughts
on options other than tuning up with another radio (like KX2 w/o ATU)?

BRET/N4SRN



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[MaverickNH]

Thanks Bill, but I wasn't clear the options I was looking for were how to use
he T1 with the EndFed antenna I have with the WSPRlite, given that the T1
requires 0.5W and the WSPRlite outputs only 0.2W. Odd as it sounds, I'm
looking for an "amplifier" to switch in to bump 10-25 fold to 2-5W as the T1
likes 2-5W for initial tune cycle and 0.5W thereafter.

The T1 has latching relays so it seems I *could* tune with a KX2 and then
swap in the WSPRlite - so that's the backup plan.

BRET/N4SRN





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