Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Mon, 19 Mar 2018 16:03:32 -0400
I found three sleeve type push in devices and since they are the very top of the tower I will use three 30' long pieces of 3/8 strand guy wire I got from the telco contractors rebuilding our hurrican
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Mon, 2 Apr 2018 19:46:23 -0400
Some may remember their first commercial transmitter back in the 50's at an affordable price was the Globe Scout made in Council Bluffs, Iowa and sold by Leo Meyerson. I believe his company was calle
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Wed, 9 May 2018 15:16:51 -0400
Gary, The long feedline plus reject loads will cost you over 3db on the upper bands. If you use LMR600 you could reduce that but the type "N" connector would be a weak point for QRO and DIN connector
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Tue, 15 May 2018 09:59:25 -0400
Does anyone know where I can buy the galvanized steel plate spreader so I can connect at these three turnbuckles properly? Herb Schoenbohm, KV4FZ _______________________________________________ _____
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Mon, 16 Jul 2018 17:59:30 -0300
Paul, Have you considered shock exciting and insulated (sleeve principle) 30 Meter element a few inches above the 40-meter rotatable dipole? This would probably work if the 40-meter dipole is a split
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Wed, 22 Aug 2018 15:07:59 -0300
John, I would recommend making a ground screen with two 50 lengths of rabbit wire from Home Depot. Take the wire to the halfway point at the base of the vertical and lay them side by side parallel to
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Tue, 11 Sep 2018 11:06:47 -0300
Tonno, I would suggest getting a DX-Engineering NCC-1 or NCC-2 to do the phasing for you in your ham shack. That way you will have phasing control right at your fingertips. Herb Schoenbohm, KV4FZ ___
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Thu, 13 Sep 2018 11:50:44 -0300
Interesting approach and more reasonable than RG-213 hanging in the air across the yard. My XYL loves the fact that my towers are placed at the opposite ends of the property so our living room has a
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Sun, 23 Sep 2018 14:22:54 -0300
Jeff, You can easily make a 15 meter balun out of a half wave piece of coax loop back with one side of the coax going to the feed point and the other to the other side feed point. All the braids are
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Mon, 24 Sep 2018 11:16:00 -0300
I use here two Home Depot plastic garbage cans along with a smaller one for shorter pieces. They are placed in the corner with the walls giving extra support for the longer tubes. On advantage is tha
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Fri, 19 Oct 2018 14:30:00 -0300
I just replaced a defective control box with one I got from eBay and everything works except that the meter on comes on when I depress the brake switch. Is there a simple modification that will avoid
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Tue, 6 Nov 2018 01:03:02 -0400
I would have been more active but forgot about the contest. but many do not know that KV4FZ is an original VI call sign and still is located on St. Croix. BTW.....NP2P is a club call from my QTH and
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Thu, 15 Nov 2018 10:28:30 -0400
Jaime, I just checked an Array Solutions 2X6 which is no longer in use here and found that none of the unused ports are grounded. The has been on the shelf being replaced by a 403A box. I have it wit
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Fri, 30 Nov 2018 09:17:33 -0400
I am within 3 miles from a 5KW AM station on 970 kHz without a problem. I do pick up the second harmonic on 1940 but never go that high in the band. You may have second or third harmonic IX but that
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Mon, 4 Mar 2019 17:13:11 -0400
While you're looking...here on eBay is a prop pitch motor from a ME- 109 WWII Messerschmidt fighter for $130. https://www.ebay.com/itm/WW2-German-Luftwaffe-Luftschraubenstellmotor-Prop-Pitch-Motor-Me
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Mon, 18 Mar 2019 11:07:14 -0300
Rich, I would check the connectors on your feedline run. Sometimes a connection running RF is made but on RX the connection opens to the point that the induced noise appears. The same could be true w
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Thu, 21 Nov 2019 07:06:02 -0400
Gary, I would recommend a 3 or 4 wire cage feed spaced about 24-36 inches around the tower as a way to get a better match with a series capacitor or L network. Herb, KV4FZ ___________________________
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Sat, 23 Nov 2019 10:41:11 -0400
Dick, Just drill some extra holes or buy a universal plate from DX-Engineering that fits both the HAM-IV ane the Yaesu rotor, Herb, KV4FZ _______________________________________________ _____________
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Thu, 28 Nov 2019 13:58:27 -0400
I have a C3S tribander which I seldom use except when on WARC bands. It is useable there but not as good as I think it would be modifying it for 24 and 18Mhz. I wonder if anyone has tried that? I don
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Fri, 29 Nov 2019 04:00:30 -0400
The perfect example of your point Jim was the infamous Maxcom antenna that claimed 1:2 to 1 from 2-30 Mhz! Actually, when you hooked your rig up that was very close. Further examination of the potted