VHF HAM RADIO.com

UHF HAM RADIO

WELCOME TO VHFHamRadio.com

Published by K4YRK, ex WA4YRK

The site features news, information, and links to manufactures specializing in VHF and UHF Ham Radio.  This site is of interest to ham operators, serious weak signal operators, moon bounce operators, and other "leading edge" ham operators.  Please bookmark this site and visit it often.

 

K4YRK Antenna Farm, EM75 WV , Farragut, TN

VHF UHF antennas,  K1FO and M2 9 wave length yagi 70cm, 2m yagi, others

Antennas:  HF: HiGain 204BA 4 element 20m beam at 95 feet, wire antennas 160M-10M

VHF/UHF beams: 6m. 2m, 432, 1296

K4YRK  Current rigs include: Icom 9700, Icom 7610, Icom 7300 for digital work,  Yaesu 991A, Expert Linear HF amp, and several classic AM rigs. 


NEWS

Early Bird 70cm Net, every morning at 0700am EST, at 432.095

NCS Doug KG4WLX, Knoxville, TN

You are invited to check into our informal "Early Bird Net" each morning on 432.095, USB.  Regular check-ins include: K4YRK, Dave, Farragut, TN near Knoxville, Doug KB4WLX, Cleve KB4UAL, David N4RIJ, W4ZCP, John, Atlanta, GA;  WB4SLM Vic Macon, GA. W4WSR, Ott, Hendersonville, NC;  KC4CBQ, Tom, W4VAS, Vic, NC4W, Mike, Ron W4WA all in GA,

  W4VHH, Tom, Charlotte, NC; W4NUS, Guy, K4XR Craig in NE Alabama

; all others welcome to join us.

After the 70cm net, Early Bird, 432.095 USB, we meet on 75M at 3.818 for the "After Glow Net"  NCS is Ott, W4WSR or Doug KG4WLX.  Starting around 7:45 AM. All are welcome to join.

K4RPA, Tom became a SK 1/27/2020.  Tom was active in weak signal VHF and UHF and a regular on the Early Bird Net.  He will be missed by the weak signal UHF group.  See photo below, right side.

 

The following from Ben, K4QF is a good description and tips for weak signal SSB VHF and UHF work:

"This is probably more than you wanted to know, but it's helpful for operating on the 432 MHz (70 cm.) band.  For the weak signal work and the possibility of extended range operation, the great majority of the contacts are made on 432.100 MHz or down to 432.090 MHz and on SSB - not FM.  Also, the antenna polarization is horizontal, not vertical.  Every morning there is an active group on 432.095 USB MHz, called the Early Bird 70cm Net.  Later, I will get into the reason for using SSB or CW and not FM.  If FM is all you have, it's better than nothing but puts you at a disadvantage for the long range contacts.

As for the daily 432 MHz operations, 70cm Early Bird Net NCS, KG4WLX (Doug), starts somewhere around 7 a.m. EST and on 432.095 USB MHz.  He begins by working stations to his S.E. and South in North Carolina, S. Carolina, and N. Georgia.  Most of the activity is on 432.095 MHz and then 432.090 and finally on 432.100 all USB.   This activity is coordinated on the ON4KST chat page, so you should register on it to keep up with who is working who and when they are on.  Once you get on ON4KST, look at the 144/432 MHz for R2 (Region 2 for N. and S. America) to view stateside stations.  KG4WLX also works some of the NC and GA stations on 222.100 MHz, also on SSB and horizontal.  After Doug and Dave work K4QF, they then turn North to work KE8FD, Gary, in Central Ohio on 432.100 MHz.  When we try, I can almost always work Gary on 144.200 MHz on CW at a distance greater than 400 miles, but signals are right down to the noise level.  I have to have propagation enhancement on 432 MHz and 222 MHz to work Gary in Ohio, but we have occasionally worked in the past.  Always post your planned mountain topping operations for this Sat, on the ON4KST site so you can alert stations when and what frequency you will be on and perhaps attract some stations from down in GA or up in OH to look for you.

 

So, for weak signal VHF and UHF extended range work, why use SSB instead of FM?  FM is a great mode for communicating over short ranges if you want noise free communications.  However, when I worked for Collins Radio Co., they conducted some tests on various modes of communications.  They set up a noise generator and signal generator so they could vary the signal to noise ratio in accurate, 1 dB steps.  What they found follows.  For FM operation, a signal to noise ratio (S/N) for suitable, noise free communications required that the signal be 20 dB above the noise for comfortable copy.  For SSB, the necessary S/N was 10 dB; i.e. the signal could be 10 dB weaker than that required for FM.  For CW, all of their CW operators tested could copy signal to noise ratios that was -3 dB or 3 dB below the noise.  This is 13 dB weaker than SSB and 23 dB weaker than FM.  So, what does this mean?  If you are passing information on FM and running a 50 watt radio, you can be just as effective on SSB with a 5 watt ratio or 10 dB less power.  To send the information on CW, you would need 13 dB less power than SSB or 0.25 watts!  Another way to look at it is if you were running 50 watts on FM and switched to SSB with 50 watts, to have the same signal to noise ratio on FM as SSB, you would have to increase your power to 500 watts!  When roving, that would drain a battery down in no time.

 

Since several of your operators have never been on 432 MHz and may not have horizontal antennas, I have attached an article I published in QST a decade or so ago.  This is for a 432 MHz omnidirectional antenna you can build in an hour or so with about $10 worth of parts from Lowe's or Home Depot.  One 10 ft. stick of copper water pipe and a 10 ft. roll of copper ice maker tubing should produce 5 or 6 antennas, so your group can build and test these antennas for this coming weekend to take to the mountains with them.  They can also stick them up on the eve of the house to be operational from home on this band.  I also have the dimensions for the 144, 222, and 50 MHz versions of this same antenna if interested.

 

You are right in that 440 MHz FM almost has to be line of site, but that's not the case for 432 MHz SSB especially if you have a beam.  Please share this information with the rest of you gang."

 

73's...Ben/K4QF

 


    The Shelby gang:              "The Big Eye-Ball QSO at Shelby ham-fest Sept 1, 2007"

 

Our "Early Bird Group" meets at Shelby Hamfest 9-01-07

From left to right: Vic WB4SLM, Dave K4YRK, Guy W4NUS, John W4ZPG, Ott W4WSR,

Pat N4BH, Tom W4VHH, Tom N4HN, Ron W4WA, Jim K4BI, Tom K4RPA, SK.

 

June contest weekend 1983 on Ogelthorp mountain near Jasper. 

 Photo and info shared by W4WA, Ron, March 5, 2021

1st row, WD4IIS, WD4JQV, W4VHH

2ND WD4MBK, WA4OYH, WB4NMA, N5BAR, AA4GA, N3AHI

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Tom, W4VHH, contesting late 70's, trying to put out a weak signal on top of Oglethorpe Mt,  Tom W4VHH is active on 70cm SSB in the mornings at 7:15 on 432.095 for the early bird net.

Roan 10 was Sep 86 we were almost blown off the mountain on this one front came thru Friday evening & probably one of the tents is still in West Virginia somewhere the wind was so strong my pickup truck slid sideways in the parking lot From Vic, WB4SLM

Wayah Bald Sept 85 VHF UHF contest group.  Names to be added.

fourlanders8 taken June 1982 Ogelthorpe Mt

Left to right

WD4MBK

???

WA4OYH 

WD4JQV

WD4IIS

 

From W4WA:  The 6 meter beam on the left is a homebrew 40-foot boom NBS design that WD4JQV and I built several years back. I had to get the beam above the beacon light which was large when you are close to it on the tower. The pair to two-meter antennas was hoisted into place by a rig that had on my truck which allowed the assembly on the ground and raised the 30 foot 25g tower with antennas in place. The location was at Bald Knob Virginia and where the picture of the four landers banner was held by Jim Holt and me in a previous picture. The location gave us a great shot into the NE and back to the south. The pics were taken in Sept 1997. 

 

A partial listing of hams that operated with the Fourlanders in the early days. Info provided by W4WA Ron:
WS4F 
WA4IOB
AA4S
KB4NBT
N4OOT
WQ4V
NZ3I
N4TMW
WA4VCC
N4HSM
N3AHI
WB4NMA, AB4RU W4WA
K0DI
WD4MBK, K4CSO
WD4JQV
WD4DWN
K4KAZ Fred Runkle deceased
AE6E K4EA
KE4RZR
AA4ZZ Paul Trotter
N9HZQ
KS4IS married K0DI
KP4XS currently lives in PR
W3EP/4 Emil Pocock
K4TW Johnny Wolf had previous calls
WB4AEG Harold
WA4OYH now NS4C 
GW3NJY Malcomb Bibby
WW4T
W4VHH
WB4SLM
K4MSK John Williams 
AA4NC Will Roberts
AA4GA Lee Heirs 
KX4R Greg Carter
N9HZQ Jeff Tucker now N9ZQ

From Ron, W4WA, his big 6m yagi photo from 1987, Roan Mtn sunset picture from '87? It has Ron's  6m big yagi and his truck in it. We used that picture on one of the recent SVHFS Proceedings covers.

Charles, NK4CSO is at the bottom. Dick Hanson K5AND at top. John Williams K4MSK is next one down from top. 

The following link for more VHF contesting photos shared by Bruce NT4RT: 

https://drive.google.com/drive/folders/1-f4nL9y2avupx2x8ag2AVY4Gh2rA2me-?usp=sharing



FT8, Meteor Scatter  and JT65 HF digital modes

I have become active on meteor scatter using digital software.  I highly recommend this mode to try as it can give some amazing results.  Information can be found and free software download at the following websites:

FT8 is now the favorite digital mode all bands.  Link to download: https://www.physics.princeton.edu/pulsar/K1JT/,   FT8 heavy activity all bands, VHF 6m, and some on 2m and 70cm.

http://www.vhfdx.de/wsjt/#Download   WSJT digital software download site.

http://www.ykc.com/wa5ufh/Help/WSJTPrimer.htm#Level Low  Primer on getting started

http://www.pingjockey.net/cgi-bin/pingtalk  Coordinating site for contacts

East Tennessee DX Association Website:  www.etdxa.org

For meteor scatter the main freq are 144.140 or near and for 6m it is 50.260 or near.

I am now also operating FT8 HF mode.  This HF digital mode is closely related to the popular JT65 moon bounce software.  Using this very weak signal mode it is possible to obtain some amazing results on HF using low power, 25 watts.  JT65: Go to: http://jt65-hf.sourceforge.net/ for info and download.

You can download the software to decode the digital signals for meteor scatter from the following website: http://www.vhfdx.de/wsjt/#Download

Once you get the software installed on your PC you will need to connect your PC sound card output for transmit and input for receiving to your radio. To do this you will need to purchase an interface. I recommend the following company and website:

http://www.westmountainradio.com/RIGblaster.htm

I recommend the SignaLink USB unit. Purchase the one for the rig that you are using.   Other companies make interfaces also, check the ads on web and amateur radio magazines and catalogs.

Follow their guidelines and just hook up the cables and interface box between your computer and radio. Set the sound levels both in and out using your sound control functions in Explorer and you are ready to try meteor scatter. Coordination for all of the contacts occur on the following website: http://www.pingjockey.net/cgi-bin/pingtalk

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VHF UHF Chat pages.  Coordinate Q and contacts:   The ON4KST chat

W4DEX website and chat room.

 



EMERGENCY COMMUNICATIONS

I have become active in the last several years in emergency radio communications via ham radio.  I have renewed my membership and updated my training in the ARES organization and also have joined a local ham group called METERS,  Middle East Tennessee Emergency Radio Service, www.metersinc.org

Knox County, Tennessee    --    Club Call KC4EM

I highly encourage all ham operators to seek out their local ARES organization and/or other ham emergency group and become involved.  We all hold our ham license as a part of our capabilities to aid in emergency communications for the nation and not as just another hobby.

I have recently became more aware of a possible threat to our country by an Electro Magnetic Pulse, EMP, attack.  I recently read a novel by William R. Forstchen, "One Second After"; which is a fictional novel about an EMP attack on our country and the resulting disaster to our country.  I have written an article about this topic on this link.  One Second After.....

I encourage you to go to Dr. Forstchen's website, www.onesecondafter.com,  to learn more about this.



TEN TEC HAMFEST

No longer held since the closing of Ten Tec and their site.

Ten Tec Hamfest of each fall is very well attended.  Your Website Editor, WA4YRK attended.  There were over 100 hams setup in the tail gating part.  Ten Tec was showing off both the new HF Orion and the new Argonaut V.  Many active VHF/UHF hams were in attendance and lot's of gear and antennas were for sale.  

The following are some photos taken at the hamfest:

Ron, WB5FUN at the hamfest and view of the tail gate section.

Ron, WB5FUN takes a look at the new Orion, as Al Kaplan, Chief Ten Tec Engineer shows off some of the features.

Tom, K4RPA (left), and Mike, N4OFA, at the Ten Tec exhibit.

Dave, K4YRK, and Ron, WB5FUN talking to Al Kaplan about the Orion at the Ten Tec Fest 9/298/02




                                                          

K4YRK rover station.


Band Openings Report:

http://www.mountainlake.k12.mn.us/ham/aprs/path.cgi?map=na A very good prop map of the USA based on apars reports.

Prop Logger Link

The list of Logs Received for VHF contest are
been posted at:

http://www.arrl.org/contests/claimed/
 

News items from:  VHF/UHF Emailing List, by Tom, K4FJW, http://www.hamradiousa.net/VHFUHF/

 

Please send your reports to this site for posting:  Email to dgarner@usit.net


 

Southeast VHF Society Conference, April 26-27, 2002 in Oak Ridge, TN.  Garden Plaza Hotel.  

Your VHF Ham Radio.com  editor, Dave Garner, K4YRK,  attended the conference.  Friday and Saturday featured antenna and preamp measuring, business meeting, and seminars on moon-bounce, meteor scatter work, antennas and dish polar mounting.  Those in attendance enjoyed a diverse program of presentations from moonbounce, (EME), weak-signal and antenna experts plus a bit of digital signal
processing. Presenters covered operating and station-construction
techniques for all the bands between 50 MHz and 50 GHz. Highlights
included Al Ward, W5LUA, detailing how he and Barry Malowanchuk, VE4MA,
completed the first-ever Amateur Radio 24-GHz EME contact. "47 GHz is
next!" Ward predicted. L.B. Cebik, W4RNL, showed some improved topologies
and element spacings that achieve substantial reduction in the side and
back radiation of Yagi and log-periodic arrays. Paul Wade, W1GHZ, told the
gathering about his design and use of periscope antenna systems and how
they help him get 10-GHz contacts. Dexter McIntyre, W4DEX, won the coveted
K4UHF Award. Conference Proceedings are available from ARRL for $20 (order
item 8683). Visit the ARRL on-line catalog <http://www.arrl.org/catalog/>
or call toll-free 888-277-5289. Part of above report compiled from ARRL Newsletter.

The sessions were excellent.  The turnout was over 100 hams, who represent some of the top VHF/UHF weak signal operators in the country.  

Secret Society of Back Scratcher's meeting at the SVHF Society meeting in Oak Ridge, TN April 27, 2002

Other photos from the SVHF Society Meeting in Oak Ridge, TN 26-27 April, 2002

N4OFA, Mike, active rover at SVHF Society Meeting

Antenna Range measuring activity, Friday April 26. KF4VZQ and W4DEX 

Group Photo of Early Bird 432.095 Group. K4KAZ, W4ZPG, KF4VZQ, W4VHH

K6LEV-Rover

Banquet at the SVHF Conference, Oak Ridge, TN 4-27-2002

Seminar at the conference

 

Early Bird 432.095 Group, L-R, K4YRK,W4ZPG,K4KAZ-(sk),W4WSR,N4FLM,KK4CA-(sk),W4DEX,W4NUS

Photo taken at SVHFS Conference, Oak Ridge, TN, 4-27-02

The Early Bird 432.095 Group meets daily at 0700AM, EST

Check-ins are welcome.  


News items, announcements, activity photo's request

Request for Photographs:  If you have one or more digital photo's of VHF/UHF ham activity such as rover, contest, meetings, other. Please send them to WA4YRK, VHF Ham Radio.com Website editor for possible publication to this site.  Also any news, operating events, activities, that would be of interest.

Email to: dgarner@usit.net


Station photo's of leading weak signal and sat operators:

W4NUS, Guy, Charlotte, NC antenna farm

W4NUS Tower and VHF/UHF antennas--Big Signal from Charlotte!

Send me your station photo's for posting to dgarner@usit.net


LINKS

VHF/UHF pages

http://www.mountainlake.k12.mn.us/ham/aprs/path.cgi?map=na A very good VHF prop map based on apars.

VE2PIJ VHF/UHF Weak Signal Site.  Good Contest info also.  

NM9H/0 VHF Grid DXpedition to DN95tt
AF9Y EME page
CQ-VHF Magazine
Central States VHF Society Home Page
W6/PA0ZN weak signal page
SETI League
N1BUG Ham Radio Pages
NorthEast Weak Signal Society
Mid South 2 Meter SSB Group/ Club
Northern Berkshire Amateur Radio Club
1296 Home Page
Parabolic AB
Paul Wade, W1GHZ
VE2PIJ VHF+ Weak signal Site

http://www.hamradiousa.net/VHFUHF/


Vendors specializing in VHF/UHF 

Down East Microwave
Max-Gain Systems (Alan Bond)
SSB Electronics
Elecraft
Lynics International
Heil Sound, Ltd.
KMA Antennas

Other Ham Radio pages

Northern Lights Radio Society
K3WWP's Ham Radio Activities
QRZ Call Sign Database
ARRL (American Radio Relay League)
RSGB (Radio Society of Great Britain)
W4AN Contesting Page

NM9H/0 VHF Grid DXpedition to DN95tt
AF9Y EME page
CQ-VHF Magazine
Central States VHF Society Home Page
W6/PA0ZN weak signal page
SETI League
N1BUG Ham Radio Pages
NorthEast Weak Signal Society
Mid South 2 Meter SSB Group/ Club
Northern Berkshire Amateur Radio Club
1296 Home Page
Parabolic AB
Paul Wade, W1GHZ
VE2PIJ VHF+ Weak signal Site

Northern Lights Radio Society
K3WWP's Ham Radio Activities
QRZ Call Sign Database
ARRL (American Radio Relay League)
RSGB (Radio Society of Great Britain)
W4AN Contesting Page

*Thank you, to the Southeast VHF Society for link information. Please visit their website at http://www.svhfs.org/


 

WUCP FM 99.9

WUCP LP Radio operates as a low powered FM radio station licensed by the FCC to service the Farragut, TN community and surrounding areas near Knoxville, TN.  I serve as the station manager and also engineer.  We broadcast 24 hrs per day, 7 days per week, bringing a mixture of Christian Music mostly Southern Gospel and Bluegrass.  You are invited to tune in and enjoy.  We also broadcast our church services each Sunday morning at 11am EST and 6pm. The station is a broadcast ministry of the Union Cumberland Presbyterian Church of Farragut, TN.  The radio link is:

To tune in on your PC click this link:

http://s5.viastreaming.net/7640/

www.wucplp.com

The Church Website is www.unioncpchurch.com


 

 Copyright:  VHF Ham Radio.com

Produced by K4YRK, Dave Garner, EM75WV, 10917 Sonja Dr, Knoxville,TN 37922

Other sites by K4YRK:

WUCP FM 99.9 FM Radio Station

 

Civil Air Patrol link

Aerospace Education Website.  A resource for teachers and CAP AE Officers


About K4YRK

I have been a licensed ham operator since 1963 and mostly active the entire time. I hold an extra class license.  I enjoy operating HF, VHF, and UHF, all modes.  Also active on Digital FT8, meteor scatter modes and  PSK31 and JT65 on HF.  I spent 17 years as a science teacher and then spent 25 years in the computer industry before returning to teaching again, Biology and Chemistry at Greenback HS in Loudon County.  I finished up my teaching career at Fulton HS in Knoxville serving as guidance counselor. I retired in 2006. I teach Aerospace Science during the summers at the University of Tennessee. I am also involved in the Civil Air Patrol and AF Mars program and serve as the manager and chief engineer for WUCP FM 99.9 radio station in Farragut, TN.

Last update 3-23-21