Hi , wouldn't it be great if there was an additional sensor for the Wattmeter W2 for the Qrp-Guys 1-54 Mhz and 0.01 - 20 Watt?
Who needs a 200 Watt version if you only have the Kx-Line ;-) I really would consider buying a qrp-version. 73 de Hajo dl1sdz --- Cela est bien dit, mais il faut cultiver notre jardin. http://hajos-kontrapunkte.blogspot.de/ Wayne Burdick <[email protected]> schrieb am Sa., 3. März 2018 16:49: > Power output on the KX2, KX3, K3 and K3S can be set as low as 0.1 W > directly using the PWR control. > > However, you can actually set power output to much lower levels (< 1 > milliwatt), with fine control, by turning off ALC in the menu and adjusting > the drive level manually. > > Here’s the recommended procedure for accurately setting power to levels > below 0.1 watt: > > 1. Connect an external milliwatt meter between the transceiver and the > antenna or dummy load. If you don’t have such a meter, you can > alternatively connect a dummy load (such as the Elecraft DL2) then use an > oscilloscope or an RF voltmeter. (The DL2 includes a rectifier so you can > just use a DC voltmeter. The manual for the DL2 provides a translation from > DC volts to power level.) > > 2. For most accurate results, bypass the ATU. This is done in the menu on > the KX2 and KX3. The K3/K3S has an ATU switch function on the front panel > for this purpose. > > 3. Start with PWR set to 0.1 W and verify that you hit about this level on > the external meter. Hold TUNE to generate a continuous carrier. (This > automatically switches to CW mode temporarily, even if you’re using a > different mode.) Then exit TUNE by tapping XMIT. > > Note: The 0.1-W level is not well-calibrated at the rig’s internal > wattmeter, because this only forward-biases the rig’s SWR detector diodes > by a small amount. Also, the SWR (shown on VFO A) will appear as “--“, > because reflected power will be too low to accurately calculate it. > > 5. Go into the menu and turn off TX ALC. This is done using the TX GAIN > menu entry on the KX2 (page 41 of the manual) or KX3 (page 49). Use the > CONFIG:TX ALC menu entry on the K3 or K3S (approx. page 66). > > Note: On all of the rigs, the TECH MD menu entry must be set to ON in > order to see the TX GAIN or TX ALC menu entries. This is a precaution to > make sure such menu settings are not changed unintentionally. On the KX2 > and KX3, you also need to UNLOCK the ALC on/off feature as explained in the > manual (MENU section). > > 6. With ALC turned OFF, the PWR control now directly controls the transmit > drive level in fine increments. I just tested my lab KX2 and found I could > set the power smoothly down to as low as about 1/2 milliwatt. > > When you have ALC turned off, the PWR display (on VFO B) will include an > asterisk (*) as a reminder. It will not show actual power level for reasons > described above. An external metering method will be needed to dial in the > desired level. > > Wayne > N6KR > > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [email protected] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
