I don't know the amp, but if it has onboard relays you should expect some
increase in current, provided they are powered via the main power supply.
73, Roger
W7TZ
CN83ia
On Sun, Jun 29, 2025 at 9:07 AM <vhfcontesting-request@contesting.com>
wrote:
> Send VHFcontesting mailing list submissions to
> vhfcontesting@contesting.com
>
> To subscribe or unsubscribe via the World Wide Web, visit
> http://lists.contesting.com/mailman/listinfo/vhfcontesting
> or, via email, send a message with subject or body 'help' to
> vhfcontesting-request@contesting.com
>
> You can reach the person managing the list at
> vhfcontesting-owner@contesting.com
>
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of VHFcontesting digest..."
>
>
> Today's Topics:
>
> 1. Bias Current for Gemini 70-1K Amp (K3SK@buckwalter.co)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sun, 29 Jun 2025 10:41:56 -0400
> From: <K3SK@buckwalter.co>
> To: <Moon-Net@groups.io>, <vhfcontesting@contesting.com>
> Subject: [VHFcontesting] Bias Current for Gemini 70-1K Amp
> Message-ID: <01a801dbe903$f73522f0$e59f68d0$@buckwalter.co>
> Content-Type: text/plain; charset="us-ascii"
>
>
>
>
>
> What should I see for device DC current on the Gemini 70-1K amplifier? I
> replaced the Ampleon ART1K6FH device due to failure. With the new device
> installed the DC supply to the RF deck draws 1 amp powered on at idle.
> When
> PTT is engaged the current rises to 2 amps. In an earlier conversation
> with Roger at the DX Shop implied 1 amp Idq was what I should see. The 2
> amp reading seems high to me, but with no technical documentation on this
> amp, I have nothing to base it on. There is an adjustment on the RF deck
> that is most likely for setting Idq. Should I set this back to 1 amp with
> PTT and no RF drive?
>
>
>
>
>
> K3SK
>
>
>
> ------------------------------
>
> Subject: Digest Footer
>
> _______________________________________________
> VHFcontesting mailing list
> VHFcontesting@contesting.com
> http://lists.contesting.com/mailman/listinfo/vhfcontesting
>
>
> ------------------------------
>
> End of VHFcontesting Digest, Vol 270, Issue 23
> **********************************************
>
_______________________________________________
VHFcontesting mailing list
VHFcontesting@contesting.com
http://lists.contesting.com/mailman/listinfo/vhfcontesting
|