Tag Archives: operating

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

SKYWARN Recognition Day

Coming up on the Event schedule
Get ready for an antenna party!!!             


SKYWARN Recognition Day, Saturday, December 2

SKYWARN™ Recognition Day (SRD) will take place this year on Saturday, December 2 from 0000 until 2400 UTC (starts on the evening of Friday, December 1, in US time zones). During the SKYWARN Special Event, hams will set up stations at National Weather Service (NWS) offices and contact other radio amateurs around the world.

Participating Amateur Radio stations will exchange a brief description of their current weather with as many NWS-based stations as possible on 80, 40, 20, 15, 10, 6, and 2 meters plus 70 centimeters. Contacts via repeaters are permitted.

SRD was developed jointly in 1999 by the NWS and ARRL to celebrate the contributions SKYWARN volunteers make to the NWS mission — the protection of life and property. Amateur Radio operators, which comprise a large percentage of SKYWARN volunteers, also provide vital communication between the NWS and emergency managers, if normal communications become inoperative. [The National Weather Service and ARRL have been formal partners since 1986].

Tennessee Radio Shack Re-Opens, Partners with Local Ham Radio Club

Tennessee RadioShack Re-Opens, Partners with Local Ham Radio Club

Check out the article published to the ARRL website. This article is going viral across various Facebook groups and pages, its good to see our local radio club and builders group in a positive light to the radio community. Many many thanks goes to the vision of L.A.R.C member Craig Thibodeaux, KM4YEC. Craig has worked diligently with the help of other club members, especially Dan W4DOD,  they have developed a consistent plan of advancement in the Bitx-40 project build, which puts a low cost 40 meter SSB radio in operation for qrp communications. The builders club is openingly sharing this process. Come join the builders group at the next build session on Nov. 18th. 2017, 2:00 P.M, at the  Jefferson City Library, Jefferson City, TN. The group is known as the WE Can Hams Builders Group, website is www.wecanhams.com.

Thanks to the builders, and Radio Shack’s willingness to partner with LARC. Many joint projects are being planned out for the local community.

Club President, Dale Knight AB4DK

http://www.arrl.org/news/tennessee-radioshack-re-opens-partners-with-local-ham-radio-club

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.

Sun Unleashes Monster Solar Flare, Strongest in a Decade

Thanks to Dan W4DOD for the info below.
The Tennessee Phone Net on 3980 was wiped out this morning by this solar event.
Dan
W4DOD

Early this morning (Sept. 6), the sun released two powerful solar flares — the second was the most powerful in more than a decade.

At 5:10 a.m. EDT (0910 GMT), an X-class solar flare — the most powerful sun-storm category — blasted from a large sunspot on the sun’s surface. That flare was the strongest since 2015, at X2.2, but it was dwarfed just 3 hours later, at 8:02 a.m. EDT (1202 GMT), by an X9.3 flare, according to the National Oceanic and Atmospheric Administration’s Space Weather Prediction Center (SWPC). The last X9 flare occurred in 2006 (coming in at X9.0).

According to SWPC, the flares resulted in radio blackouts: high-frequency radio experienced a “wide area of blackouts, loss of contact for up to an hour over [the] sunlit side of Earth,” and low frequency communication, used in navigation, was degraded for an hour. [The Sun’s Wrath: Worst Solar Storms in History]

Read More at the Link below

EclipseMob Radio – Builders Group

This Saturday August 19, see you there!

K1T Special Event Station

I Just worked the K1T special station, on 20 meters, 14.265. @ 12:00 am. This event celebrates 70 years of Electronics kits by HeathKit. Great guy, great QSO, a very fitting Special Event since LARC started up its Builders group.  Go try to work this station.

Dale, AB4DK

Operating ONLY during:  00:00 UTC July 23, 2017 – 23:59:59 August 5, 2017
Make sure you are requesting a QSL card from the correct K1T station!!
https://www.qrz.com/db/K1T#QSL

Lakeway Amateur Radio Club puts ARRL Handbook for Radio Communications on Jeff City Library Shelf

Recently, Lakeway Amateur Radio Club – Builder’s Group, was searching for an additional meeting space for its group building sessions. After looking at the new library in Jefferson City it was discovered that there were no Amateur Radio books on the shelf.

Jefferson City Library Director – Anjanae Brueland with new ARRL 2016 Handbook for Radio Communications.

 

So, a careful preflight inspection was done: Large Conference Room seats 100 at capacity.

Full multi-media facility with wifi, computers, projector, drop down large media screen, sound system.  They even let us solder our radio kits (when we are very careful).

We even found a large back porch with really comfortable reading chairs, under the large ceiling fans, and as you can see: the back porch is shaded in the afternoon.

So, shaded in the afternoon in summer, and a large fireplace for the winter? So, for reading or operating radios or soldering on the back porch during a Builders Group Session, this venue is hard to beat.

Lakeway Amateur Radio Club – giving back to the library.

Lakeway Amateur Radio Club – Board Member, Craig Thibodeaux KM4YEC presenting Jefferson City Library – Director, Anjanae Brueland, the ARRL 2016 Handbook for Radio Communications.

So, Lakeway Amateur Radio Club – Builders Group – WeCanHams at work, assembling a HF (High Frequency) 40 Meter Band – 7 MHz kit Radio at one of our 3rd Saturday of each month Building Sessions.  Whether you call it a Builders Group, Homebrewing, Makers, Tinkering, Hacking, or just having fun, the Jefferson City Library is where its at!

And don’t forget the back porch, whether you curl up with your favorite book (maybe that ARRL Handbook) or join the Builders Group (WeCanHams.com) for some afternoon relaxation.

Many Thanks to Jefferson City Library and its very helpful and friendly staff.

Happy Hams and Happy Librarians. Library Director – Anjanae Brueland on the left and Library Assistant – Alexa Lee on the right, holding up ARRL Handbook from Lakeway Amateur Radio Club.

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Tomato Festival

25th Anniversary
Grainger County Tomato Festival TN.
July 28, 29, & 30 2017
Hours: Friday 28 noon to 8pm
Saturday 29 9am to 6pm
Sunday 30 noon to 5pm
​Grainger County Tomato Festival
​7480 Rutledge Pike
Rutledge Tn 37861

PicturePainting by Wendy Leedy

The Grainger County Tomato Festival was organized in 1992 to promote our world famous Grainger County Tomatoes. Our mission is to promote all Grainger County agricultural products, specifically the Grainger County Tomato, and to promote the many local artists, authors, talent, and craftsmen we have in our area. Over the years we have added a number of special events making the festival one of the largest free festivals in East Tennessee and has been named by Parade magazine as one of the top ten festivals in the USA.
The festival is always the last full weekend in July in Rutledge,Tennessee. Be sure to mark your calendars! You don’t want to miss it.
For more info check out their website at: