Author: Herbert Schonbohm <herbert.schoenbohm@gmail.com>
Date: Thu, 23 Jan 2014 19:32:42 -0400
Mini Circuits makes a bias Tee box that has very low insertion loss down to 500Khz. It is their model*ZX85-12G-S*. and as Tom pointed out there is a change with current throughput and you can view th
Author: Herbert Schonbohm <herbert.schoenbohm@gmail.com>
Date: Tue, 04 Feb 2014 14:23:01 -0400
Is there not a built in loss of 3db on both TX and RX with a CP antenna compared to an Axial mode antenna? Not that it makes that much difference on RX but 3db is 3db. Another issue with CP I underst
Author: Herbert Schonbohm <herbert.schoenbohm@gmail.com>
Date: Tue, 04 Feb 2014 15:00:36 -0400
Is there not a built in loss of 3db on both TX and RX with a CP antenna compared to an Axial mode antenna? Not that it makes that much difference on RX but 3db is 3db. Another issue with CP I underst
Author: Herbert Schonbohm <herbert.schoenbohm@gmail.com>
Date: Tue, 11 Feb 2014 17:59:47 -0400
Bruce, I can't answer your wind turbine noise question on TB but while we are on the subject and a bit off topic....in the 70's a 250KW wind turbine with metal blades was installed on the island of C
Author: Herbert Schonbohm <herbert.schoenbohm@gmail.com>
Date: Sat, 22 Feb 2014 19:28:05 -0400
Things are terrible as I can get about one Q per hour. Some years ago I did WAS in 3.5 hours on 160. Just not possible this weekend to even get to Florida. Herb Schoenbohm, KV4FZ On 2/22/14, 3:13 PM,
Author: Herbert Schonbohm <herbert.schoenbohm@gmail.com>
Date: Tue, 25 Feb 2014 12:52:13 -0400
Can I run a single drop wire into my panel and then switch the feed between two matching networks? One for 160 and one for 80? Please advise Thanks Carl AG6X Carl, Why not just run a slant wire to yo
Author: Herbert Schonbohm <herbert.schoenbohm@gmail.com>
Date: Sun, 16 Mar 2014 13:19:42 -0400
The majority of sailboat and powerboat cruising crowd (some call them yachtsmen) are to busy when they are at the helm to do internet. However when they pull into a port or harbor and drop the anchor
Author: Herbert Schonbohm <herbert.schoenbohm@gmail.com>
Date: Sun, 16 Mar 2014 17:48:08 -0400
Mike, The issue with "cruisers" using the ham bands is that so many are not even legally licensed or if they are have no permit to operate in the ports and harbors where they are visiting. Most of th
Author: Herbert Schonbohm <herbert.schoenbohm@gmail.com>
Date: Sun, 16 Mar 2014 20:31:25 -0400
Today Mike using amateur radio to send position reports is not wise to say the least especially along the north coast of SA, the San Blas Islands or the East coast of Central America. There is an inc
Author: Herbert Schonbohm <herbert.schoenbohm@gmail.com>
Date: Tue, 25 Mar 2014 16:57:31 -0400
Lee you might check the AM band and see if there is a detectable carrier on 603.6 or 905 Khz as sometimes unlicensed AM pirate stations try to slip in between the noram AM 10 KHz increments to avid i
Author: Herbert Schonbohm <herbert.schoenbohm@gmail.com>
Date: Fri, 28 Mar 2014 08:28:33 -0400
If Cat 5 cable will work why won't two wire twisted air audio cable? Is it because of the tightness of the twist that is of concern. I see no reason it won't work except for the cancellation property
Author: Herbert Schonbohm <herbert.schoenbohm@gmail.com>
Date: Thu, 10 Apr 2014 05:45:42 -0400
Herb Schoenbohm, KV4FZ 73, Guy. WOW!! I thought that had been shot with a silver bullet, at a crossroad, and had a stake driven through its heart over ten years ago! The Flat-Earthers are still among
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Thu, 24 Apr 2014 13:14:49 -0400
With a grounded tall tower with uninsulated guy wires perhaps the best solution would be to install have wave slopers with at least a 45% angle of declivity and space as far from the guy wires as pos
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Fri, 23 May 2014 08:33:56 -0400
One thing we know for sure is that in the DXCC area the ARRL inner circles have always been inconsistent with their litany of inconsistencies. They have create DXCC countries because of external poli
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Tue, 17 Jun 2014 12:10:03 -0400
This thread started out by comparing $1000-$1500 transceivers to each other and then all of a sudden we are focusing on $4000 to $5000 radios such as the Elecraft K3. IMHO nobody that spends $5000 to
I swear I am going to start a self serving thread called vertical near by to a beach. Herb Schoenbohm, KV4FZ Sent from Windows Mail Hi Guys, ENOUGH of the "...modeling the proverbial 'vertical on the
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Wed, 27 Aug 2014 08:48:03 -0400
I place all rotor wires and other cable through a few 3" Ferrite rings at the base of the tower with as many turns as I can squeeze on. Before doing this I had a slight deflection in the rotor indica
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Sat, 20 Sep 2014 10:34:26 -0400
Jim, The DXE boxes are designed for 450 ohm ladder line which has a much higher impedance than WD1-A wire. Using the DXE boxes may work but Gary's boxes (KD9SV) will work better as they are designed
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Sat, 20 Sep 2014 14:53:00 -0400
No my mistake as the spacing of the two parallel conductors would determine the impedance but the mismatch from 600 ohms to 450 would also not be good. It wold be easier to get working IMHO with a si
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Mon, 22 Sep 2014 13:30:29 -0400
If the inverted "L" is made to be 3/8ths wave long on 160 meters it can be feed as a 3/4 wave on 80 meters. In this case only a series capacitor to tune out the TB inductive reactance is needed on 16