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eHam Forums => Boat Anchors => Topic started by: KD0ZGW on April 02, 2019, 01:53:42 PM



Title: HW-101 rookie user question re tuning
Post by: KD0ZGW on April 02, 2019, 01:53:42 PM
So I've learned how to tune it up and made a few contacts with good reports.

typical set up is HW-101 to manual tuner or resonant antenna.  So far for non-resonant I am using another rig to get the antenna tuned up before I switch to the Heathkit. 

Question:  How do I know when a retune is warranted as I sweep across a band with the HW-101? 



Title: RE: HW-101 rookie user question re tuning
Post by: W3RU on April 02, 2019, 02:15:43 PM
Redip the plate at 35-50 watts (reduce the drive in Tune position) with a 10KHz frequency change, then repeak the preselector slightly for a peak in plate current.

You may run into SWR trouble on 75-80 meters, depending upon how far you move from the center frequency of the antenna.  Other bands should handle the larger difference.

Jack  W3RU



Title: RE: HW-101 rookie user question re tuning
Post by: W5RKL on April 02, 2019, 02:53:50 PM

Mark,

If you change frequencies more than 15Mhz then I would recommend touching up the transmitter tuning.
If you move from the Phone band segment to the CW segment, perform a complete tune up of the transmitter.

Do NOT adjust the LOAD control to reduce power output!!!


73
Mike W5RKL
www.w5rkl.com
RMC(SW) USN RET