QRZ.COM
ad: L-HROutlet
ad: l-rl
ad: Subscribe
KD6RF USA flag USA

Login is required for additional detail.

Email: Login required to view

XML Subscriber Lookups: 22405


Consulting RF/microwave engineer specializing in Ultra-WideBand (UWB) circuitry and Antenna design for communications and radar.

Old Novice Call - WN7UNZ 1970's
Current Extra Call - KD6RF

 

Technical Blog ===> http://vtenn.com/Blog/

Simple 200 MHz Wide UWB Antenna ===> http://vtenn.com/Blog/?p=506

 

HAM STATION:

WSPR, Digital, and Voice station equipment scattered about the Lab and Home - from WSPR site ===> http://wsprnet.org/drupal/user/26288

X/Rcvr:

  • IC706 MkIIG phase locked to Efratom FRS-A rubidium standard - 160M-6M, 2M, 70cM - usually on 160M or 15M
  • IC706 MkIIG phase locked to Efratom FRS-A rubidium standard - 80M-6M, 2M, 70cM - usually on 80M or 10M
  • TS430S with TCXO, typically +/-5 Hz accuracy - 80M-10M, usually on 40M
  • Ultimate3s TX, 5W class E PA, Single Freq XTAL RX, typically +/-10 Hz accuracy - 30M - triplexed onto inverted L antenna
  • Ultimate3s TX, 5W class E PA, Single Freq XTAL RX, typically +/-10 Hz accuracy - 20M - triplexed onto inverted L antenna
  • Ultimate3s TX, 5W class E PA, R-2000 with TCXO RX, typically +/-10 Hz accuracy - 17M - triplexed onto inverted L antenna
  • R7000 with ARR LNA, typically +/- 100 Hz (in)accuracy - 140 MHz through 3.5 GHz VTenn VIVALDI

Antennas:

  • HF - inverted L, 45' tall 45' top, 160M-6M, BMU-160 base matcher, -2 dBi to +6 dBi, including tuner/cable
  • HF - 3 X inverted L, 23' tall 22' top, 80M-6M, BMU-80 base matcher, -2 dBi to +6 dBi, including tuner/cable --Naturally, each has a proper radial field for efficiency on the lower bands--
  • 2 Element homebrew yagi for 6 M, broadband reflector design, 26' high
  • 140 MHz through 3.5 GHz - VTenn VIVALDI, 26' high, 17 deg elev tilt (for sat work) 7 dBi @ 144 MHz increasing to 13 dBi @ 3.5 GHz (VSWR < 1.4:1 over entire range)
  • Various other Homebrew Turnstiles and Yagis for AmSat work

Vintage:

  • Boatanchor Hammarlunds, HQ-129X, HQ-145 with homebrew non-product detector SSB mod and audio derived AGC that actually works, and a Gonset transmitter, and a few Heathkit Linear Amplifiers.  Some tube type Regens.

 

                      

 

 

Using only homebrew non-resonant end-fed Inverted-L's for 230+ DX entities in the log.  Naturally a proper radial system is used for decent efficiency on the low bands -

  • 90 ft (45 ft tall, 45 ft across) Inverted-L -- 160 M - 6 M
  • 3 x 45 ft (23 ft tall, 22 ft across) Inverted-L's -- 80 M - 6 M


Low angle DX-Worthy radiation on ALL bands from the end-fed Inverted-L's.  From http://vtenn.com/Blog/?p=83  and http://vtenn.com/Blog/?p=110  ===>

 

Article describing the Fence Counterpoise Antenna used at the old California QTH.  It turns out that a dirt simple metal fence makes a surprisingly mediocre counterpoise ===> http://vtenn.com/Blog/?p=19

 

c u OTA - 73 - dB

 


UWB Channel Estimaion US007970047

http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-adv.htm&r=1&f=G&l=50&d=PALL&S1=7970047&OS=7970047&RS=7970047



UWB Communications Loop US007305052

http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-adv.htm&r=14&f=G&l=50&d=PALL&S1=7305052&OS=7305052&RS=7305052



Broadband Antenna and Feed Method US009627777

http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&u=%2Fnetahtml%2FPTO%2Fsearch-adv.htm&r=1&f=G&l=50&d=PALL&p=1&S1=9627777&OS=9627777&RS=9627777



Remote Powering US008188841

http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&u=%2Fnetahtml%2FPTO%2Fsearch-adv.htm&r=2&f=G&l=50&d=PALL&p=1&S1=8188841&OS=8188841&RS=8188841

 

 

 

8579118 Last modified: 2018-01-13 21:39:36, 9682 bytes

Login Required

Login is required for additional detail.


Apply for a new Vanity callsign...

You must be logged in to file a report on this page

Please login now...

QRZ Logbook Summary for - KD6RF
Latest Contacts for KD6RF at QRZ.com
dedateband mode grid Country op
N4ST 2018-01-19 160m FT8 FM18ke United States JAMES E PRICE JR
K4XD 2018-01-19 160m FT8 FM05qv United States Rowland Archer Jr
K7MAC 2018-01-19 160m FT8 DN13sn United States ROLAND R MC GAHA
W9TB 2018-01-19 160m FT8 EM36pg United States FREDDIE E RIXIE
W1UU 2018-01-19 160m FT8 FN41qn United States PETER K BUTLER
WA9ONY 2018-01-19 160m FT8 CN85tq United States DAVID A HAWORTH
E31A 2018-01-19 30m FT8 Eritrea FGC DX Group
IT9SSI 2018-01-18 30m FT8 JN62ks Italy Dario P
N8DEA 2018-01-18 30m FT8 EN91ej United States Dean B Benninger
ZF2LC 2018-01-18 30m FT8 EK99hi Cayman Islands Jim Cary
3DA0AY 2018-01-17 20m FT8 KG54pc Swaziland BRAAM DEVENIER
9G1SD 2018-01-17 17m FT8 IJ87WR44 Ghana DAVID SCHNEIDER
3B9FR 2018-01-16 17m FT8 MH10rg Rodriguez Island ROBERT FELICITE
J35X 2018-01-16 17m FT8 FK92db Grenada Derek Steele
6Y6J 2018-01-16 40m FT8 Jamaica JA3 DX Vacation Group

Book Totals: 2297 qso's   1312 confirmed Get a free logbook at QRZ.COM


c
United States Award#3990
Granted: 2018-01-12 22:30:03   (KD6RF)

Endorsements:
  • Mixed Digital
DX World Award#6510
Granted: 2017-12-26 10:06:02   (KD6RF)

Endorsements:
  • Mixed Digital
United States Counties Award#668
Granted: 2016-07-19 13:00:02   (KD6RF)

Endorsements:
  • 250 Counties Digital
  • 100 Counties Digital
  • 100 Counties Mixed
  • 250 Counties Mixed
World Continents Award#5446
Granted: 2015-02-25 15:46:20   (KD6RF)

Endorsements:
  • 5 Band Digital
  • 10 Meters Digital
    12 Meters Digital
    15 Meters Digital
    20 Meters Digital
    30 Meters Digital
    40 Meters Digital
  • 5 Band Mixed
  • 10 Meters Mixed
    12 Meters Mixed
    15 Meters Mixed
    17 Meters Mixed
    20 Meters Mixed
    30 Meters Mixed
    40 Meters Mixed
  • 10 Meters Phone
  • 15 Meters Phone
  • 20 Meters Phone
  • 40 Meters Phone
  • 15 Meters CW
  • 20 Meters CW
Grid Squared Award#4512
Granted: 2015-02-25 15:46:19   (KD6RF)

Endorsements:
  • 15 Meters Digital
  • 20 Meters Digital
  • 40 Meters Digital
  • 15 Meters Mixed
  • 20 Meters Mixed
  • 40 Meters Mixed
  • Mixed Phone
ad: giga-db
Copyright © 2018 by QRZ.COM
Fri Jan 19 13:42:28 2018 UTC
CPU: 0.068 sec 85932 bytes mp