Katy Amateur Radio Society (KARS), Katy, Texas

Recurring Events
KARS NetEvery Tuesday, 8:00 PMKARS RepeaterKT5TX 147.200(+) MHz Repeater, PL 141.3
KARS Monthly Meeting2nd Monday of Every Month, 7:30 PMHCESD Fire Station #422855 Franz Rd, Katy, TX 77449
Talk in on the Repeater
KARS VE Session (Licensing Exam)Saturday, September 10, 2016, 9:30 AMHCESD Fire Station #4No Pre-registration Required
KARS CoffeeEvery Wednesday, 7:30 PMStarbucks547 South Mason Rd. Mason & Merrymount
KARS BreakfastEvery Saturday, 8:00 AMLocal RestaurantAl Caliente, 20210 Katy Fwy

Katy Amateur Radio Society (KARS) is an active club in Katy, TX, just west of Houston, dedicated to the fascinating hobby of amateur radio.

Please come and join in the fun!

KARS General Meeting May 9, 2016

June 11th, 2016 Comments off
  • Meeting called to order at 7:30 P.M.
  • The Pledge of Allegiance was said
  • There were 22 members and 3 visitors present
  • The BOD minutes were read. Charlie moved to approve and Bob seconded.   BOD minutes were approved

Treasurer’s Report

  • The Treasurer’s report showed that there was $2696.00 in the bank account
  • Mike is to collect dues
  • An insurance payment of $320.00 is due. Charlie moved to approve the payment and Jack seconded.  The insurance payment was approved.
  • The insurance claim for the lighting strike was $218.00

Museum Ships on the Air

  • Mike says Battleship Texas Amateur Radio Society will be on the air this year on for Museum Ships on the air weekend
  • The weekend is June 3-5, 2016
  • Must be a Texas Parks and Wildlife volunteer if you want to stay overnight


  • Membership applications were read
  • If dues are 90 days late, the member is dropped from the rolls
  • Bob B. is taking orders for KARS club shirts
  • Field Day is June 25-26, 2016. It will be at Mark Bing’s house.
  • The club will be a 3A club this year
  • Sign ups for a Potluck Dinner

Radio Towers

  • KARS have been offered two radio towers
  • Free to the club if the club takes them down
  • Jimmy Vance is Incident Commander
  • Charlie said there are a number of options for using the towers
  • The towers can be stored
  • The towers are Rome 45
  • There is talk of putting one up at the new HCEDS FD 48 Station #5
  • Could put at a different agency such as Willowfork FD
  • Could sell them to members too

Other Items

  • CERT training starting May 18, 2016
  • Reservations are online at Harris County CERT
  • Net controllers are need for weekly net
  • Mark Bing is looking for VEs

Break at 8:02 P.M.

Presentation for Meeting

  • John gave a talk on the Winlink system and how it works and hooks up to the internet


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For Sale YAESU FT-1000 MP MARK-5

May 30th, 2016 Comments off

For Sale:
Excellent (MINT) condition, non smoking environment
Matching SP-8 Speaker
MD-100 desk microphone

Matching Power Supply

Boxes and Manuals
Rig is completely stock (no additional filters)
$ 2500.00   Will deliver to Houston, TX area or pick up in Metairie, LA
Contact: Dale, K5NQ


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April 2016 General Meeting Minutes

April 16th, 2016 Comments off

KARS General Meeting Minutes Monday April 11, 2016

• Meeting called to order at 7:30 P.M.
• The Pledge of Allegiance was said.
• Roll call had 21 members and 1 non-member present.
• The BOD minutes were approved by voice vote.
• Treasurer’s report from Mike:

The insurance bill was due. The amount is $108.00. Charlie motioned to vote and Gerald seconded the motion. The membership voted and approved to pay the bill.

• Vote on New Members
Mike read the new membership applications.
A motion was made to suspend the by-laws and vote on new members. Mark motioned and George seconded. Nine members were voted on and approved.

• KARS Constitution and By-Laws Changes
Proposed changes to the by-laws we given to the membership for review.
There was talk to meet a new applicant at an event be it club meetings, BOD meetings, coffee, breakfast, etc…
Meeting the person at the event would need to be sponsored.
Full dues for the year would need to be paid at time of joining.
If they do not pay their dues, they are out.
The barrier for membership should be removed.
There was discussion for new members to be considered an associate member until voted upon at a general meeting.
Background on new member will be checked on the FCC ULS to make sure their license is current and no enforcement actions have been taking by the FCC.
The Board of Directors will write a new proposal at their next meeting on April 25, 2016.

• Public Service Events
BP MS 150 on Apr. 16-17, 2016
HCESD #48 Safety Fest on Apr. 23, 2016
CB&I TRI – The Woodlands Triathlon on Apr. 30, 2016
The Humble Bike Ride on May 1, 2016
The Ironman and the Hurricane Workshop are coming soon.

• KARS Club Shirts
Looking at different styles including T-shirt, long sleeve t-shirt, and polo
Pricing is also being evaluated. The price will go down if more are ordered.

• Net control operators are needed for the Tuesday night net. Ham Test Online fee will be waived for the General Test Studies if the Tech will serve as Net Control Operator. Also, Ham Test Online fee will be waived for the Extra Test if the person agrees to be a VE. The new question pool for the Extra Class begins on July 1, 2016.

• HCESD 48 Safety Fest
Dave Scott the chairperson for the event.
Club members wanted for the event.
Needs are for net and for communications.
Need to have an HT radio.
Event times are 10AM-4PM.
Sign up with Dave Scott.
Fire Department to tell us positions.
Dave will have an ICS for the event.
Club will set up an HF station.

• ARRL Field Day is June 25, 2016. A chairperson is needed for the event.

• Break

• Bob and Mike showed the K1N Navassa Island DVD on DX trip to Navassa Island.

• Meeting ended at 9:15PM.

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April ’16 Meeting – K1N Navassa Island DXpedition

April 6th, 2016 No comments
The April 2016 Meeting will be at 7:30 on April 11 at HCESD Fire Station #4, 22855 Franz Rd, Katy, TX 77449.
Bob Bently WB3EWP will give a video presenation on the K1N, Navassa DXpedition. This should be a very interesting presentation.
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March 2016 Meeting Minutes

April 6th, 2016 Comments off
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March ’16 Meeting – Power Supplies, Linear and Switching

March 3rd, 2016 No comments

The March 2016 Meeting was at 7:30 on March 14 at HCESD Fire Station #4, 22855 Franz Rd, Katy, TX 77449.

Summary of Presentation by Brian AF5IT:

Sooner or later every ham wants or needs to set up a mobile radio in a base station configuration.  Doing so will require a power supply which converts the 120 volts AC power to 12 to 14 volts DC power.  There are primarily two types of regulation used in today’s commercially available power supplies:  Linear and Switch Mode.  The linear regulation supply constantly draws AC current and regulates on the DC side of the step down transformer by using a transistor as a variable resistor.  Output current draw adjusts base bias on the transistor allowing for constant voltage output.  Any unused power is dissipated off as heat.  Advantages:  less parts, easier to troubleshoot.  Disadvantage:  not too efficient

The switch mode supply regulates by rectifying AC power, using that filtered, but unregulated, voltage to power an oscillator IC chip whose output drives a switching transistor.  In the transistor collector circuit is the primary of a transformer.  The on and off action of the transistor causes current to go and stop through the transformer, resulting in a magnetic field which is felt by the secondary and creates current flow in the secondary circuit.  This waveform is a square wave running at around 15Khz.  The wave is rectified and filtered and sent to the device needing power.  Output voltage fluctuation is detected and feedback to the IC chip which adjusts its output frequency and/or duty cycle, adjusting the voltage across the transformer primary.  Power is only drawn for the AC supply when needed.  Advantages:  Highly efficient, cooler running.  Disadvantage:  many parts and may be victim of domino effect failure.

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Free Equipment from wb5kvv

February 22nd, 2016 No comments

I recently made a sweep of my ham shack and found some items that I want to find a new home for. All are in working condition as far as I know, except the 2 meter receiver kit, which is still in the wrapper.

I plan to bring the items to the March KARS club meeting, and offer them free to any member who wants them, first come first serve. If there are any items left over, I plan to bring them to the hamfest, place them on the KARS table, and donate any proceeds to the club.

The current list includes:

  • CW Pixie QRP transceiver (1 watt)
  • External speakers (2)
  • Shortwave converter by Ramsey (converts AM band to Shortwave)
  • Shortwave converter by MFG (converts car radio to shortwave)
  • 94 feet of twin lead , 300 ohm
  • LED learning kit
  • Electronics beginner learning kit
  • Headphones with AM FM receiver
  • SDR dongle with software disk
  • 2 meter receiver kit (still in wrapper, not yet built)
  • Aircraft receiver kit (assembled and working)
  • 10 meter receiver kit (assembled and working)
  • LED dual blinker pc board (assembled and ready to blink)

Free to KARS members only, on a first come first serve basis.

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February ’16 Presentation – Software Defined Radio

February 9th, 2016 No comments

Monday, February 8, 2016 , at 7:30 PM
West I-10 Fire House at 22855Franz Rd, Katy, TX 77449

SDR Clip

KF5CZO gave a presentation, a high level overview of SDRs, software defined radios.

KARS – Software Defined Radio Presentation.pdf

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January Presentation – RF Propagation, Introduction and Overview

January 20th, 2016 No comments

RF Propagation, Introduction and Overview

Monday, January 11, 2016 , at 7:30 PM
West I-10 Fire House at 22855Franz Rd, Katy, TX 77449




WB5KVV gave a presentation on RF propagation.  He covered different types of propagation, considerations and special cases.

RF Propagation 101 Jan2016.pptx

handout RF Propagation 101.doc

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Technician Radio Class

December 29th, 2015 No comments

Technician Radio Class

Katy Amateur Radio Society will offer a Technician Amateur Radio License Class over four Saturday morning sessions.  Classes are February 13, February 20, February 27 and March 5.  Classes will be Saturday mornings from 9:30am-11:30am at HCESD 48 Fire Station No. 4 at 22855 Franz Road.   

Class will be based on the HamTestOnLine program.  The web-based training materials will be offered at a discounted price of $15.00.  Additional topics covered include: using your handi-talkie, digital communications, public service opportunities, and other areas of ham radio.

The VE Exam for the FCC Amateur Technician License will be held March 12.

Class space is limited to 30.

Please contact Mike Brannan at KA5OXA@arrl.net or 281-782-3046 to reserve a space.

 We can respond to your questions via the contact below.

Katy Amateur Radio Society        P.O. Box 200, Katy, TX  77492-0200

Public Information Officer:          Mike Brannan    License:  KA50XA              Phone:  281-782-3046

Email:  KA5OXA@arrl.net              Home address: 23006 Greenrush Dr., Katy, TX 77494

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