April 2015 started a new chapter as we have moved from the Maryland QTH to the new North Carolina QTH. The NC QTH is in Pamlico County which is in the far eastern part of the state. A Google Earth view of the NC QTH which is in FM15. Gone are the tower and beams from the old QTH.
The main rig is the FTDX5000MP with a Acom 1000 and Palstar HF-Auto, with the addition of Icom IC-7300. The 7300 is my backup rig, digital rig, and 6M monitor rig. Mic is a now Electro-Voice RE320 which replaced a Heil PR22, but the Heil sounded just as good.
My mobile is a Icom IC-7000 with a Tarheel 75A 6-80M antenna in a 2011 Ford F-150 XLT 5.0L 360HP V8.
For work I am in the emergency communications field in law enforcement and I am a certified COML.
Here are some of my ham radio related YouTube videos.
Pamlico County NC QTH in FM15
Some visitors at the dock
Another vistor in the backyard
For just a little over 100K miles I used a Hi-Q 3/80RT on my 2011 F-150XLT on GeoTool mount. In early 2016 while driving on I-95 outside Washington DC a large sheet of ice came of a tractor trailer and sliced the cap-hat and loading coil top off, it was beyond repair. In March 2016 I replaced it with a Tarheel 75A which was a fair bit less expensive, I will see how it performs and holds up.
Former Hi-Q antenna
And it works like Magic!
IC-7000 control head
IC-7000 transceiver securely and remotely mounted on fabricated underseat mount
And completely out of the way and protected
New antenna projects
First is a "fan" 160M/80M/40M Inverted L vertical. I had a heavily wooded section in the back yard cleared in order to install this vertical. Before the clearing it was too thick to walk through, now it is a nice open area where I hope to get grass growing.
Using a DXEngineering Radial Plate and DXE feedline current choke, radials are 32 14AWG 63' long. Feedline is DXEnginnering's DXE400. The vertical sections of the 160M and 80M section is 45' and comprised of 2 wires spaced 18" apart, at the top the go opposite directions, one is the 160M element, the other is 80M. 40M is it's own vertical wire. So far performance is exceeding expectations, the Acom 1000 has no problem loading into it without a tuner. Using WSJT's WSPR mode I have performed several tests (during summer) using 10W and consistently being received in EU and OC when using the inverted L, when I switch to the full size 160M dipole I get no DX stations receiving me. And on the local rag chew Toad Harbor 160M net the inverted L equals or out performs the dipole for the most part.
The PVC frame is used to keep the wires seperated for the first 10', it also gives me an easy path to add a 40M section and one other. The copper strap connects all the vertical elements together. The jumpers you see on the 160M element are there so I can experiment with adding a series cap.
Upper HF and 50MHz
I tried several OCF dipoles, both commercial and homebrew and became vert disaapointed in their performance so in spring 2017 I installed is a K4HEX Hex Beam with 6M. When I left Maryland I had 98 countries confirmed on 6 and I want to get DXCC to go along with my 6M WAS, WAC and VUCC (I stopped collecting endorsements at 525), this was done with 100W and a 5 element yagi. I know the Hex will not come close to the yagi.
I didn't want to go through the hassel of putting up another tower so made a 30' high mast system. It has a 15' 2" chrome moly section and a 15' 2.5" aluminum mast section. A G450 rotor is at the base on the W9IIX mount. The whole thing tilts over and the Hex Lock allows the Hex Beam to articulate as it gets close to the ground.
So far the Hex has been working very well.
Low Band Receive
I am installing a SAL-30 Shared Apex Loop, this is the current work in progress. It will be elevated about 7' to clear the tractors, deers and bears!
Here are some videos of the SAL-30 performance:
Finally got some atmospheric noise to see how well the SAL-30 does with that on 160M.
SAL30 performance testing using WSPR
The setup is 2 different receivers, FTDX5000MP on the SAL30 and the IC-7300 on the other antennas. Each hooked up to their own PC running WSJT-X in WSPR mode simultaneously for a direct side by side comparison.
This is a WSPR comparison on 80M over a 30 minute period after grayline. The SAL30 enjoys at least 12dN SNR improvement.
This is a few minutes on 160M with the SAL-30 vs the Inverted-L. Much of the DX the L could not even hear.
Some visual comparisons.
160M SAL30 top, Inverted L bottom:
80M SAL30 top, Inverted L bottom, this was done with approaching thunderstorms with lots of atmospheric noise:
Old Davdisonville MD QTH
Tennadyne T8 and Directive Systems DS50-5
8038113 Last modified: 2017-04-17 14:45:51, 53252 bytes
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