Category Archives: Study Sessions

Online Store

Online Store is live, Purchase your Hamfest / Builders Fest tickets now. Click now to go to the Store or look for the Tab on the Menus

Special Grand Prize this Year.
Yaesu 991a Hf vhf/uhf radio!

 

 

Next Club Meeting

uBitx radio kit

www.morristownhamfest.com

Buy It Now!

The uBITX is a general coverage HF SSB/CW transceiver kit with features you NEED for operating ease, convenience and versatility. If works from 3 MHz to 30 MHz, with upto 12 watts on SSB and CW with a very sensitive receiver. It features digital tuning, dual VFOs, RIT, CW Keyer and more.  The uBITX is a general coverage HF SSB/CW transceiver kit with features you NEED for operating ease, convenience and versatility. It works from 3 MHz to 30 MHz, with upto 12 watts on SSB and CW with a very sensitive receiver. It features digital tuning, dual VFOs, RIT, CW Keyer and more.

Operating

The uBITX is a joy to operate. Press the tuning control to access all the features. Dual VFOs, RIT, CW speed, sideband selection. etc. are all accessible from a single menu. The transceiver automatically selects the proper sideband for you (you can override it too).

Technical Specifications

The uBITX is an understandable radio. The complexity is kept to a minimum so you can always repair and make changes if you so desire.

The the uBITX has a carefully thought out operator interface. The tuning knob features a number of menu options on a click. From RIT, to dual VFOs, to the keyer and many more featuers are all accessible from the tuning knob by simply tapping on it.There are intelligent defaults everywhere (these are easily overriden). Example : below 10 MHz, it auto-selects LSB and vice versa. To operate CW, you just press the morse key.

Architecture The uBITX uses upconversion to the first IF of 45 MHz. This eliminates the need for a large number of band pass filters, keeping the design simple and virtually image free. The roofing filter at 45 MHz is 15 KHz wide. The signal is then down-converted to 12 MHz where a low ripple SSB filter with 8 crystals is used to provide a sparkling audio.

The transmitter has push-pull PA using two IRF510s for a clean output. The low cost IRF510s are not  a bother to replace should you ever blow them up.

Receiver :

  • Sensitivity a 0.2uv signal is clearly audible
  • Selectivity 2.4 KHz,  low ripple SSB filter with 8 crystals
  • RIT (Receiver Incremental Tuning)
  • Continuous coverage from 500 KHz to 30 MHz
  • Sideband selection
  • Dent-less encoder tuning. Tunes with larger step rates when tuned quickly

Transmitter

  • More than 10 watts upto 10 MHz, 7 watts upto 21 MHz, 2 watts on 28 MHz
  • CW transmit with the built-in keyer
  • Uses   IRF510s  x 2 as PA and  2N3904 x 4 drivers in push-pull mode for low distortion transmission. Blown IRF510 are inexpensive to replace

Raduino Features

This is a small board with an Si5351 clock generator, an Arduino Nano and a 16×2 LCD display. It plugs into the main radio board. The software that controls the radio is written in Arduino’s C langauge.

All the features are available implemented in Raduino software. The menus are accessible by pushing the button on the tuning encoder. You can add more features by hacking through the open source code available on https://github.com/afarhan/ubitx

  • Dual VFOs
  • RIT
  • Manual override of LSB/USB selection
  • CW Keyer Speed and tone selection

µBITX

CountDown to something great

There is something behind that STOP sign, and at 1pm today it will be removed. Get Ready

www.morristownhamfest.com

 

Lakeway Amateur Radio Club Builders Group
The purpose of this group is to foster and accommodate the art of DIY in Ham Radio. The group is available to new and experienced hams in the Lakeway Area in East Tennessee. Projects vary from simple antenna construction to projects using
microprocessors such as the PIC and Arduino.

September Meeting Program

Come join us for an interesting program at our September’s meeting at the Jefferson City Library. September 28th, 2017.

WSPRNET 

we’ll be covering details of equipment used, software, antennas, computers, why it’s helpful, ways to use it! Get ready for another tools to use with Amateur Radio

WSPR (pronounced “whisper”) stands for “Weak Signal Propagation Reporter”. It is a computer program used for weak-signal radio communication between amateur radio operators. The program was initially written by Joe Taylor, K1JT, but is now open source and is developed by a small team. The program is designed for sending and receiving low-power transmissions to test propagation paths on the MF and HF bands.

WSPR implements a protocol designed for probing potential propagation paths with low-power transmissions. Transmissions carry a station’s callsign, Maidenhead grid locator, and transmitter power in dBm. The program can decode signals with S/N as low as -28 dB in a 2500 Hz bandwidth. Stations with internet access can automatically upload their reception reports to a central database called WSPRnet, which includes a mapping facility.

VE Testing

VE Testing LARC Meetings

 

Thursday, August 24th. 2017
(4th Thursday of every month)
@ 5:00 P.M.
VE
Testing in Room 1
If you are interested in attending a testing session
to obtain your FCC License
Please email to let us know for confirmation.
lakewayarcboard@gmail.com

Walk ins are welcome:

When coming to a test session, be sure to bring:
Your current License,
A copy of your License,
Any orginal CSCE you have,
A copy of any CSCE Plus the Original,
Your SSN and FCC Licensee Number (Cores or FRN)
Photo ID,
If you are unlicensed bring:
2 ID’s( one with Photo)
Your SSN

Builders Group in Room 2
(note: always show and tell, along with builders group program)

@ 6:00 P.M.
Board Meeting in Room 1: After Testing
Social Gathering in Room 2
(note: this could also be extended builders group on some nights, show and tell, etc)

@ 7:00 P.M.
Meeting / Program in Room 2
Refreshments in Room 1

Where:
First Baptist Church Youth Center,
504 W Main St
Morristown, TN 37814.
Email for details or questions:
lakewayarcboard@gmail.com

Next Meeting July

Thursday, July 27nd. 2017
Testing @ 5:00 P.M. ,
Board Meeting @6:00 P.M.
Meeting/ Program @7:00 P.M.
Where: First Baptist Church Youth Center,
504 W Main St
Morristown, TN 37814.
Email for details or questions:
lakewayarcboard@gmail.com

Walk ins are welcome
If you are interested in attending a testing session to obtain your FCC License
Please email to let us know for confirmation.
lakewayarcboard@gmail.com