Re: [Elecraft] K3 RF-out spikes, was: K3 SSB Power Control and ALC Metering

I wonder if this thread is related to the thread about TX Gain calibration, from which it seems to have forked. If the TX gain calibration hasn't been done properly, or the conditions are not similar (e.g. the PA is not providing a 50 ohm resistive load, or there is a significant operating

Re: [Elecraft] K3 RF-out spikes, was: K3 SSB Power Control and ALC Metering

movement. Graham G3TCT - Original Message - From: Charles Harpole [EMAIL PROTECTED] To: Kamal Sirageldin [EMAIL PROTECTED]; elecraft@mailman.qth.net Sent: Thursday, September 25, 2008 3:48 AM Subject: [Elecraft] K3 RF-out spikes,was: K3 SSB Power Control and ALC Metering Yep, my recently

Re: [Elecraft] K3 RF-out spikes, was: K3 SSB Power Control and ALC Metering

Hallo Graham, thank you for looking at this with a scope. Did you try changing the power level while you were in SSB at lowish power, e.g. from 30W to 35W? This (at least it used to) usually caused my K3 to settle in on a power level which tended to be between 3db and 10dB lower than

[Elecraft] K3 RF-out spikes, was: K3 SSB Power Control and ALC Metering

Yep, my recently factory re-done K3-100F #309 also has RF output power spikes upon first key down or first SSB word spoken. The spike appears to be at fully 120 watts when rig is adjusted to 50 watts. When oh when will this rig be at least half way done? 73, Charles Harpole [EMAIL