Newbie Radio operators are incredibly lucky, in that and also obtaining the usage of newbie radio repeaters to extend their variety, they also possess the use of Lower Earth Orbiting satellites(LEOs) which can be developed and preserved by newbie radio fanatics. These satellites work in the VHF and UHF beginner bands, and may let stations to communicate with each other at distances significantly greater than ordinarily possible. One among probably the most popular satellites used today is AO-51.
AO-51 was introduced about the 29th of June 2004 from Baikonur Cosmodrome, Kazakhstan, and it really is one of the simplest satellites to operate via.
The uplink frequency (the frequency a single transmits on) is from the 2M band (145.920MHz 67.0Hz CTCSS tone), and the downlink frequency (the receiver frequency) is with the 70 cms band (453.300 no tone). First of all we need to uncover wherever and once the satellite will appear at your area. The good news is, this details is quite quick to search out.Visit the heavens-above web site, and sort with your locale details to get a record of passes at your locale.
Pay attention on your own radio on the time the satellite is about to look over the horizon, but get started by listening 5 kHz previously mentioned 453.300MHz.Once the signal turns into crystal clear, start tuning down in 1 kHz increments to acquire the clearest signal.That is to permit for your doppler influence. When you hear the satellite, you will be able to put a simply call out within the uplink frequency, and using a little bit of luck you should listen to your very own signal relayed again for you.
Lately released from your International Area Station in February 2011, is actually a new satellite from North The united states termed ARISSat-1. Uplink is among 435.740-455.760MHz, as well as the downlink is among 145.918-145.958MHz. And also voice functions, ARISSat-1 has 4 SSTV (Gradual Scan Tv) cameras onboard. Photos is going to be saved as well as transmitted in colour employing Robot36 mode less than the callsign RS01S.
Facts concerning passes at your locale soon after start, might be present in this instance by wanting around the AMSAT North America web-site. Despite the fact that transmitted energy from beginner radio satellites is quite reduced (in the buy of about five hundred mW to 1 Watt), it is even now doable to hear and perform by way of them using a handheld transceiver with its built-in Whip antenna.
Remember to tilt your antenna, in order that it is perpendicular to the satellite, for better reception. Amateur satellites might be a boon to Amateurs that are restricted to functioning around the V/UHF bands, and will allow intercontinental contacts to get spot that would not otherwise be achievable.
Hi, I'm Rick and I live in Coconut Creek, Florida. near Ft Lauderdale. There are many facets of ham radio and one of the most fascinating is Slow Scan TV(SSTV). This homepage is dedicated to this aspect of Amateur Radio.
SSTV is a method of exchanging images of all types by radio. Shown above is an image I transmit. A few images I have received are shown below. I hope you enjoy the images and if you're an amateur radio operator active on 20 meters with a desire to learn more , please join us on 14.230 MHz. See you there!
KA4EWC | W5ZR | W5ZR(2) | KA1KZB | KA1KZB(2) | K2EVY | N9VV | KQ4XZ | W2PQC |XE1L | KB0FVV| VE7KR| WA1GZY| WA2TGO| KG9DF| W4WLR| AF8S| KG9CW| N7MT| WA2KUK| G3OQD| GM3SBC| K4FJK| G0SBV| WB0ZUR| VK1HK| W8MPM| NM1S| N5WA| N5WA REVERSE ANGLE| W8ASF| W8ASF Appearing Live With Larry King| AC3J| KB2MBC| JA5CU/1| K9SLQ| WB4EJC| W2IDX| W5NOO| AA9HD| VE3FVH| ZL2BMH| JH1OZS| VK4ZG| VK3BIW| N2EZG| W4OD| W4OD Baby picture, Sent By WB9VCL| AA9IR| ON4VT| VK4GO| CT1AKD| W9CQ|
If you are a slow scanner with a mug shot that the world should see, I'll include it if it is E-mailed(MIME encode only)to me or sent over the air. Note: Some images are now being stored/converted to jpg format to conserve room and color depth.
John Langner, WB2OSZ, has written an excellent manual on SSTV. The history of SSTV, images, simple interfaces and much more are shown here. If you're new to SSTV begin with John's manual. Today many hams are getting started in the hobby with a very inexpensive(< $20) hardware interface(often referred to as a Hamcomm serial interface) and readily available software. Other hams are purchasing excellent systems such as Pasokon, and Pasokon lite. Still other hams like trying all the systems for fun. Below are slow scan systems of all types.
The HamComm circuit (and derivatives) is one of the most popular interfaces for SSTV. A number of the slow scan programs discussed below utilize the HamComm circuit or a modified version. To all of those who will be building the circuit, I highly recommend reading the following well done web page. The site has all sorts of information on the interface, problems, troubleshooting ideas, etc. and you can download from this page as well.
If you are interested in using the Hamcomm circuit on other digitial modes like RTTY, Amtor, the author of the hamcomm site, Terry K7SZL, offers a Hamcomm kit with narrow band filtering. Check it out!
The HIRES paint and control program is now being used in over 76 countries throughout the world, and has become a graphics standard for the ROBOT 1200C, LM9000, RIBIT, and of course the SuperScan 2001 SSTV Scan Converter. Less than a year ago, a new version of HIRES-70 for the new TASCO TSC-70 Scan Converter was released.
HIRES 4.0, supports the new 256 Line transmission mode, as well as Martins 4.6 EPROM, and the new HQ (image sharpen) mode, for the ROBOT 1200c. Tom's home page has all the details.
If you're are interested in new fonts and transparences for Tom's program check out the following web pages: Download Fonts and download Transparencies. Thanks to Bob, G0AZX's, and Doug, G0EOJ.
One of the most popular software programs in the U.S. has been GSH-PC. This shareware program written by G. Szabados-Hann, DL4SAW, is a dual screen, slow scan program. Its simplicity, easy to configure characteristics and good performance make it appealing to many hams. It uses a hamcomm type serial interface and the documentation also includes enhancements to the basic hamcomm circuit. Download the latest GS-HPC Version 2.22
This is a "test drive" version that has nearly all the features of the registered version. It has some improvements over the version that was previously available. Once unzipped, this new version can be identified by the date of 5/12/97 for the file, GHSPC22.EXE and by the size of this file - 371,034 bytes. Thanks Dave, KB4YZ.
Ahora en espanol, DL4SAW. Gracias Blas, EA7GIB.
And yet another slow scan program for windows 95(only) has been developed by Jim N7CXI and team. It's called W95SSTV and requires a multimedia level II compliant machine. If you want to start fast, this program is extremely easy to use. Check the details for your self directly from Jim's homepage and try the latest release now!.
ViewPort is now compatible with JVFAX. John Montalbano, KA2PYJ, has written a TSR shareware program called VPTSR.ZIP that permits operation with JVFAX. It works very well! The color FAX mode which is part of JVFAX is very impressive with 640 pixels per line.
A shareware program written by Mike Versteeg, PA3GPY, is receiving excellent comments from hams that are using it. The program is called MSCAN. (version 2.1) It was the first program that permited simultaneous multi-tasking such as image reception and image loading. It works with an inexpensive serial interface and a 24 bit color video card. Mike's release 2.1 is compatible with virtually every interface on the planet including Viewport, Hamcomm, Easyfax, Microscan, Multiscan, PK900 and comparator op amps. You can find out the latest program and news directly from Mike's homepage.
Ben Vester, K3BC, developed and has continuously improved the Vester software system over the past several years. Ben's software is recognized for outstanding image quality in both receive and transmit using a simple serial interface similar to the Hamcomm circuit. This software, which Ben offers as freeware, supports all popular slow scan modes including AVT, and FAX480. Unlike some recent programs , Ben's software does not require an op-amp offset adjustment pot. He has upgraded the software to permit a picture header and quad image transmission. In recent releases, installation and setup has been made easier. Ben was kind of enough to recently send me his latest software which he describes as one step beyond rev M. Ben has made significant improvements in Scottie 1 and has added in-line graphics. Download VESTER_M+. If you already have the M version(7/20/96) then download VESTMADD.ZIP to update to the latest configuration.
If you have sound blaster or a compatible card, then a full featured
commercial software product called "Color SSTV" is available from
Harlan Technologies. Call (815)398-2683 begin_of_the_skype_highlighting (815)398-2683 end_of_the_skype_highlighting. Evenings and weekends are best. If you would like to try it, a shareware version of the product is available. Download
Sound Blaster SSTV(422K)
now, connect cables, and be on the air today! For more information click
Brian, 9H1JS, has written a shareware program which decodes FAX & SSTV signals using the sound blaster card. You can download a trial veriosn and find out more directly from his website.
And Brian has just added Baudot RTTY to his program. See his web page for details as Brian is getting excellent results.
This program was written by Jamie Philbrook, KA1LPA. Version 3 features 64K colours, small paint mode that will let you do lettering of multiple styles, Quad picture past function transparent over lay for pasting, line, pen,spray, plus much more. It also decodes WEFAX. It requires a Hamcomm type interface. There does not appear to be a large number of stations using this program but those that use the registered version seem pleased. Certainly the images that I have received from stations using this program are very good. The registered version features up to 200 postage stamp images for easy image review. Download the latest demo program from his website.
And now there is a windows shareware version available called WinSkan. .
Thanks to Grant, G8CGK, for letting us know of this mode.
Lots of hams have this problem. So here are some purchase options:
Bill Montgomery, VE3EC, has updated Robot helper with a WIN95 version. Robot 1200 users can download the NEW http://www.tigertronics.comThis Windows shareware application controls the Robot, supports lots of image formats and has many handy features. Thanks Bill and keep up the good work!
A growing number of slow scan programs are supporting color depths far in excess of 32K. MSCAN(16.7M), GSHPC(16.7M), PASOKON(16.7M) and VESTER(262K) are programs that transmit and receive with large color depth resulting in outstanding natural color with the appropriate images. Do you know how many different colors exist in your images? Download Paint Shop Pro in either 16 bit or 32 bit versions. Paint Shop Pro is an excellent shareware paint program that among its many capabilities can count the number of different colors in your image. Download this program and try it today!
Another excellent graphics program is called LviewPro. Find out more and download the latest version from the author's homepage.
Link to the IVCA Home page.
To subscribe, send email to firstname.lastname@example.org with body of message containing the following:
You will receive a return E-mail if you successfully subscribed. As the free exchange of ideas is encouraged, if you pay for email service by the byte you may want to consider carefully before subscribing. Translated this means you may receive alot of E-mail. BitBucket has NO organizational sponsors. It is paid for by KE7GH. Thanks Brian for letting us know.
And now vocaltec has upgraded its popular phone program with live video. Download Iphone4.5 and enjoy video along with the audio. Works best with pentium computers.
You can also ask to receive it automatically each month without the pictures. Here are a few excerpts from June:
More and more South Korean stations show up: HL3CJ, HL5BLI, HL1KTX etc
So far the only UA0 station active in SSTV is UA0OB, Toly.
SV9DJV and SV9DRO are daily around 14230.
RA2FB, Alex showed up also. Guess he’s the only SSTV station in Kaliningrad.
Another new country in SSTV: CT3FEB, JOE, has started up in SSTV from Madeira Island.
4K6D is also daily seen with CQ pictures on 20 meters.
The 17 meter frequency 18160 is frequently used by far east stations in SSTV. Seen on 17 meter: JA2BWH/1, BA4AD, 9M2AE ... etc.
Today Friday 23 May an experimental SSTV repeater is on 28700 Mhz USB. It's a simplex repeater using only ONE frequency.
Repeater set up: TX/RX TS820 ANT GP vertical COMPUTER 486DX33 SOFTWARE MSCAN 2.20 MODEM MULTISCAN
Repeater location: JO21IB Heist op den Berg BELGIUM
Repeater callsign: ON4VRB
How to operate the repeater? -Give a short 1750Hz tone (not build in in HF transceivers but easy to generate, even with a short wistle the repeater opens, or use SSTV software with build in 1750Hz tone-generator (like MSCAN or JVFAX) ). -Send your picture within 8 seconds after the repeaters "k" tone. This tone is send to confirm the repeater is open. -5 seconds after your picture is finished , the repeater replays your picture on the same frequency and in the same mode . (modes available: M1, M2, S1, S2, Scottie DX, Robot 72) -Every 15 minutes without activity the rpeater will transmit its beacon picture.
The repeater crew: Sysop ON6JG Co-sysops ON1DBS ON4CEI ON4VT
Reports and remarks please to ON4VT
Have you noticed how prices on flat bed scanners are dropping? Took a chance on a ScanTec 2c by Spot Technology recently, well under 189 bucks, does a very nice job, full page 16 mill colors,a ton of software on disk it has its own card and cable,not scuzzy, but was plug and play, even with 16 bit sound card and all the other cards installed no surprises, its a little slow but not much slower than the big buck scanners...
Epson has several at 200 and under also.
Excellent for all those 35mm pics you may have from vacations... Thanks to Wayne, Kd8cj.
Digital cameras are becoming increasingly popular to slow scan hams. Start your investigation of this subject with this excellent page of comparisons. Also see the camera comparisons as presented by PC Magazine.
While many of us are using Computer Eyes RT as a video frame grabber, there is a new frame grabber on the market which appears to be an excellent candidate for amateur radio slow scan TV. It's called Snappy from Play Incorporated. It captures 16.8 million colors in resolutions far greater than that needed for slow scan. Its an external device and uses parallel I/O. It's priced at $200. And Snappy has just released a 32 bit version of their software . Click Snappy now for more information.
Digital Vision has a new high resolution frame grabber. Check out the
Digital Vision Homepage. Review their
latest software release. Also Digital Vision's HAMCAP
now supports up to 640 x 480 resolution and 16 million colors. These can be downloaded from
Click on the latest table of addresses.
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P.S. If you ignore my warning you will have access to every reference made on the planet to SSTV.
Blue Ridge Digital Society
DX Hound Homepage Lots of Amateur Bookmarks
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Welcome To the Amateur Radio Web Server
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Alachua Freenet - Amateur Radio
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