开云体育

TDR with AA-230 Zoom

Larry Stowell K1ZW #917 I have an unknown length of Davis Bury-Flex on a Spool and need about 100ft. I have the settings for the Vol factor (82%) and ran the TDR. It starts at 14.9ft at the center its 127ft and at the end 238ft.? Does this mean I have 127ft? I take the center(end of coax) then reflex back? 73 Larry K1ZW Durham, NC?
AE7G All Messages By This Member #918 开云体育 It all depends first on whether the correction factor is correct. ? I am confused over the 19 ft before the start.? Are you running a 15 foot length into the spool? ? I have used the AA-600 and it reports actual length in the graph. ? toggle quoted message Show quoted text From: [email protected] <[email protected]> On Behalf Of Larry Stowell K1ZW via groups.io Sent: Friday, November 25, 2022 12:46 PM To: [email protected] Subject: [RigExpert Family] TDR with AA-230 Zoom ? I have an unknown length of Davis Bury-Flex on a Spool and need about 100ft. I have the settings for the Vol factor (82%) and ran the TDR. It starts at 14.9ft at the center its 127ft and at the end 238ft.? Does this mean I have 127ft? I take the center(end of coax) then reflex back? 73 Larry K1ZW Durham, NC?
Larry Stowell K1ZW #919 I just have enough coax to put a connector on ~5ft. I don't know what the "correction" factor is, I did put the velocity factor in as 82% On Friday, November 25, 2022 at 04:50:27 PM EST, AE7G <gthornton@...> wrote: It all depends first on whether the correction factor is correct. ? I am confused over the 19 ft before the start.? Are you running a 15 foot length into the spool? ? I have used the AA-600 and it reports actual length in the graph. ? toggle quoted message Show quoted text From: [email protected] <[email protected]> On Behalf Of Larry Stowell K1ZW via groups.io Sent: Friday, November 25, 2022 12:46 PM To: [email protected] Subject: [RigExpert Family] TDR with AA-230 Zoom ? I have an unknown length of Davis Bury-Flex on a Spool and need about 100ft. I have the settings for the Vol factor (82%) and ran the TDR. It starts at 14.9ft at the center its 127ft and at the end 238ft.? Does this mean I have 127ft? I take the center(end of coax) then reflex back? 73 Larry K1ZW Durham, NC?
Mike W9RE All Messages By This Member #941 You are on the right track. Use the zoom buttons and the display will show zero ft on the left hand side and where there is a discontinuity that reading is the end of the coax in your case 127'. I was confused at first on the left side reading not being 0'. Mike W9RE

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