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Welcome to my Ham Shack

Hello , my name is Mark Gierhart. First Licensed in 1980 under the call of KA8KUG. After a couple Call Letter changes (N8CZV & KD9ZD) in 1992 I received my Extra Class Amateur Radio License and changed call to KE8MB. In November 2011 I applied and received a Vanity Call , W8MDG (Mark David Gierhart).

My QTH is located just outside of a small Villiage called Harrod . It is about 8 miles East of Lima , Ohio in Allen County. Lima is famous for it's M1A1 Abrams Tank factory and also Hams may know Lima for Fair Radio Sales , a Military Surplus outlet.

As of this writing , I have 3 grown children and 9 grandchildren. Hobbies outside of Ham Radio - I enjoy doing Family Genealogy , Computering and building Electronic Projects.

My latest E-QSL Cards can be found posted on my W8MDG Facebook Site:   Sign-up to Join!!

My occupation- been a Radio Broadcast Engineer for over 30 years and at present am taking care of 4 FM and 1 AM station here in the Lima Area. Interested in my Genealogy Research: http://www.watchtv.net/~markg


eQSL is the preferred method of QSL - Tnx

73 Mark


"So we fix our eyes not on what is seen, but on what is unseen.
For what is seen is temporary , but what is unseen is eternal"

2 Corinthians 4:18


   Grandson Jacob - Caught in the Act!!     - - -       M1A1 Abram Tank - Built in Lima


      This is me and my "Better Half" Mary

           2 Element HomeBrew Quad - PVC Pipe & Housewire !

4 element Cushcraft AS4 Beam with 40 meter add-on - 6 meter vertical J-Pole ,
2 element 10 meter Quad - ATV UHF Beam

UPDATE  - November 2015

   Just added a 6 meter 2 element Moxon Beam.. Now waiting on a Band Opening!!

   Also "tagged" an 80 meter inverted dipole below my 160 meter.

Operating Station:

RIG = Kenwood TS-480SAT Transceiver

Microphone = Sennheiser MD-421

Key = CT Ham Iambic - Lever Paddle

Keyer = Electronic Homebrew

Straight Key (Most of the Time)

Antennas = 4-Element Cushcraft 4 Bander 10 , 15 , 20 & 40 meters

Hustler 4-BTV Trapped Vertical 10 , 15 , 20 , & 40 meters

Homebrew 2-element Quad - 10 meters

Homebrew 2-element 6 meter Moxon Beam

160 meter Inverted Vee Dipole up 30 feet

80 meter Inverted Vee Dipole

6 meter vertical J-Pole


This is a QRP Pixie CW board kit. Purchased off Ebay for $6.85 (includes shipping)
The add-on board is a 555 sidetone oscillator (top right corner). The kit comes with a 7.023 Mhz crystal which I
removed and added a toggle switch (top left corner) which switches between 7.030 & 7.040 Mhz. The output
is less than 1 watt.

Well , I got bitten by the QRP bug.. I went ahead a built another QRP kit. This is called
the Forty-9er and has a little more output than the Pixie above. It has an output of 3 watts
in to a 50 ohm load. Has some improvements over the Pixie including a built in Side Tone
oscillator and better filtering. Total cost with shipping was $13.69 including shipping.

Here is a look at my 6AQ5 Homebrew Transmitter. Output is about 4 watts. It has pluggable band coils.

A picture of my experimental single IC chip transmitter. This is 2 bands - 10 meters
and 15 meters. Uses a 74HC250 Buffer Chip , has an output of about 500 milliwatts.


" Even a Mosquito doesn't get a Pat on the back,
until he's done his Job! "


free counters                                                                                                                    SKCC# 12411


  Ten-Ten # 32807                                               Omiss # 9333


free counters

My Awards



6868995 Last modified: 2015-11-20 13:32:02, 9245 bytes

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QRZ Logbook Summary for - W8MDG
Latest Contacts for W8MDG at QRZ.com
dedateband mode grid Country op
KB3OMJ 2016-07-16 40m JT65 EN91wv United States Richard L Williams
KF7F 2016-03-18 40m JT65 DM37fb United States CHARLES F WOLCOTT
F4HMI 2016-01-07 40m JT9-1 IN87vk France Jean-Franois DELAGE
IW6CZF 2016-01-04 40m JT9-1 JN63so Italy Giovanni Puglisi
K1VWJ 2015-12-31 160m JT9-1 FN42cv United States RICHARD L SEARLE
N3GTY 2015-12-17 80m JT65 FM05mf United States WILLIAM L WAGAMAN JR
OP4A 2015-12-03 40m JT9-1 JO21lh Belgium Cis Francis Bauweraerts
WL7CG 2015-11-20 40m JT9 BP61xb Alaska ALAN J SORUM
WB6RT 2015-11-19 20m JT65 CM97ai United States Wayne F Bongolan
EA8FO 2015-11-10 20m JT65 IL18qa Canary Islands Celso Glez Jimenez
KA3YGL 2015-11-09 80m JT65 FN00fa United States BRUCE M BIGAM
KA1MDQ 2015-11-09 40m JT9 FN41sp United States Paul D Mascott
K8TLC 2015-11-09 20m JT9 EN72nu United States Ronald J Blakeman
N3PPE 2015-11-08 40m JT9 FM29jx United States DAVID M DIGGS JR
PY2WO 2015-11-07 10m JT65 GG66qk Brazil WANDERLEY OREFECE WAN

Book Totals: 1933 qso's   954 confirmed Get a free logbook at QRZ.COM

World Continents Award#11022
Granted: 2015-11-02 01:35:02   (W8MDG)

  • 10 Meters Mixed
  • 20 Meters Mixed
  • 10 Meters Phone
  • Mixed Digital
Grid Squared Award#9635
Granted: 2015-11-02 01:30:02   (W8MDG)

  • 10 Meters Mixed
  • 15 Meters Mixed
  • 10 Meters Phone
  • Mixed Digital
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