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Hf antenna

Mike Holmes All Messages By This Member #438 Edited Saturday I'm seting up my hf antenna Saturday, it will be an inverted 'V'. What length/frequency should it be? Mike
Larry Macionski All Messages By This Member #439 What band or bands do you intend on using? What coax or open ladder line feed do you intend on using? Are you going to use an Transmitter tuner. Also known as an antenna tuner, but incorrectly designated. The formula for a 1/2 wave dipole is 468 divided by the frequency in Mhz.. Leave a little extra to loop through insulators and pruning-tuning. So if you're interested in 40 meters CW,,, that frequency band is 7.000 to 7.100 mhz.. You would want to center in the band.. so use 7.050 mhz 468 / 7.050 equals.. 66.38 feet.. each leg would be 33.19 feet.. Again add some for looping through the insulators. and adjustments needed because of near metal proximity. You may want to read about Antennas in the ARRL antenna Handbook. You can find them at the Library... Let me upload "Practical Antenna Handbook by Carr" to the files area here... Larry W8LM
Michael Moore #440 40 meters has the nato net following The wary omiss net, then late omiss net. All on 7.185. Late night 2:30am 7.190 Down load the netlogger program and you can see all the net available. 73’s toggle quoted message Show quoted text On Oct 16, 2023, at 11:47 AM, Larry Macionski via groups.io <am_fm_radio@...> wrote: ?What band or bands do you intend on using? What coax or open ladder line feed do you intend on using? Are you going to use an Transmitter tuner. Also known as an antenna tuner, but incorrectly designated. The formula for a 1/2 wave dipole is 468 divided by the frequency in Mhz.. Leave a little extra to loop through insulators and pruning-tuning. So if you're interested in 40 meters CW,,, that frequency band is 7.000 to 7.100 mhz.. You would want to center in the band.. so use 7.050 mhz 468 / 7.050 equals.. 66.38 feet.. each leg would be 33.19 feet.. Again add some for looping through the insulators. and adjustments needed because of near metal proximity. You may want to read about Antennas in the ARRL antenna Handbook. You can find them at the Library... Let me upload "Practical Antenna Handbook by Carr" to the files area here... Larry W8LM -- Michael Moore KF0BFU Sergeant of Arms
Mike Holmes All Messages By This Member #443 I should have been more succinct, what is the most active bands? I think at the pota, gaylen was very busy on 17, whereas on 20 there was not as much traffic, what bands is best to tune an hf antenna? Mike
Gaylen Klein All Messages By This Member #444 Were I you I'd put up a "multi-fan" dipole to cover the band(s) you're interested in."Typically" these cover 80, 40, 20, 15 and 10 meters.? The 80 meter portion "usually" having loading coils to keep the overall length reasonable for a city lot.Just my opinion, though I have used an Alpha-Delta DX-CC in the past and was quite satisfied with its performance.?Gaylen W. Klein, USN(Ret.) toggle quoted message Show quoted text -------- Original message --------From: Mike Holmes <aerospaced@...> Date: 10/16/23 2:18 PM (GMT-06:00) To: [email protected] Subject: Re: [W0VFW] Hf antenna I should have been more succinct, what is the most active bands? I think at the pota, gaylen was very busy on 17, whereas on 20 there was not as much traffic, what bands is best to tune an hf antenna?Mike
Michael Moore #445 40 meters, download netloggers. Org and you can see what’s playing. toggle quoted message Show quoted text On Oct 16, 2023, at 3:13 PM, Gaylen Klein <gklein.klein@...> wrote: ?Were I you I'd put up a "multi-fan" dipole to cover the band(s) you're interested in."Typically" these cover 80, 40, 20, 15 and 10 meters. The 80 meter portion "usually" having loading coils to keep the overall length reasonable for a city lot.Just my opinion, though I have used an Alpha-Delta DX-CC in the past and was quite satisfied with its performance. Gaylen W. Klein, USN(Ret.) -------- Original message --------From: Mike Holmes <aerospaced@...> Date: 10/16/23 2:18 PM (GMT-06:00) To: [email protected] Subject: Re: [W0VFW] Hf antenna I should have been more succinct, what is the most active bands? I think at the pota, gaylen was very busy on 17, whereas on 20 there was not as much traffic, what bands is best to tune an hf antenna?Mike -- Michael Moore KF0BFU Sergeant of Arms

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