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Using a Balanced Line Tuner
Doug
Hi, 滨’惫别 just set up a doublet with ladder line to a MFJ Versa III Tuner to my 857D. 滨’惫别 adjusted the tuner to the “loudest sound”, about S7 on 20M. Next step is to transmit on low power and fine tune. Problem, no matter what I set the RF gain to I’m only seeing 5-10W out on the tuner meter and it’s all reflected. On the radio when I transmit, the SWR looks to be around 2-3, power under 50% (with radio RFgain set to 100W).
I’m receiving fine, I live in Ontario EN94np and picking up brothers in the US clearly. Do you think there’s a setting on the radio that 滨’惫别 missed to make it work with the external balanced line tuner (I‘ve played with menu item 085). Thanks in advance. Doug VE3DGY |
Sure you don't have the antenna connections reversed on the tuner? Only having reflected power usually indicates they are reversed.
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-- Leonard K. Pennock (AD7AS) On January 9, 2021 5:45:36 PM MST, Doug <Decadic@...> wrote:
Hi, 滨’惫别 just set up a doublet with ladder line to a MFJ Versa III |
Doug
Thx Leonard, nope that wasn’t it. Found it tonight - wasn’t the radio. My feed line was close to 60’ - this is too close to the quarter wave dipole I had up (130’) . I added 20’ to the ladder line and then it would tune.
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Doug On Jan 10, 2021, at 11:11 PM, Leonard K. Pennock <leonardpennock@...> wrote: |
Glad you found it.
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-- Leonard K. Pennock (AD7AS) On January 10, 2021 9:16:14 PM MST, Doug <Decadic@...> wrote:
Thx Leonard, nope that wasn’t it. Found it tonight - wasn’t the radio. |
Bob L
开云体育Good thinking, congrats, I have that antenna, and I love it. Once you find the settings for each band, write them down, I call it my cheat sheet, makes tuning next time much easier. 73 Bob Sent from my Verizon, Samsung Galaxy smartphone -------- Original message -------- From: Doug <Decadic@...> Date: 1/10/21 9:16 PM (GMT-07:00) Subject: Re: [FT-857] Using a Balanced Line Tuner Doug > On Jan 10, 2021, at 11:11 PM, Leonard K. Pennock <leonardpennock@...> wrote: > > ?Sure you don't have the antenna connections reversed on the tuner? Only having reflected power usually indicates they are reversed. > -- > Leonard K. Pennock (AD7AS) > >> On January 9, 2021 5:45:36 PM MST, Doug <Decadic@...> wrote: >> Hi, 滨’惫别 just set up a doublet with ladder line to a MFJ Versa III >> Tuner to my 857D. 滨’惫别 adjusted the tuner to the “loudest sound”, about >> S7 on 20M. Next step is to transmit on low power and fine tune. >> Problem, no matter what I set the RF gain to I’m only seeing 5-10W out >> on the tuner meter and it’s all reflected. On the radio when I >> transmit, the SWR looks to be around 2-3, power under 50% (with radio >> RFgain set to 100W). >> >> I’m receiving fine, I live in Ontario EN94np and picking up brothers in >> the US clearly. Do you think there’s a setting on the radio that 滨’惫别 >> missed to make it work with the external balanced line tuner (I‘ve >> played with menu item 085). Thanks in advance. >> >> Doug >> VE3DGY >> >> > > > > > |
Doug
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On Jan 11, 2021, at 12:16 AM, Bob L via groups.io <wa7dxz@...> wrote:
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