Slow Scan TV Net
Image Mode Training Net on the 441.300 MHz N6NA FM Repeater in Sacramento, CA, Wed. nights at 9 pm Pacific Time.
If the repeater is not available, our Alternate frequency is 145.510 MHz FM Simplex
N6NA SSTV Net Live Feed
Archive of Past N6NA SSTV Nets
SSTV Net Check-Ins
AE6OR KA6YLA KI6NHP KI6PHB K6ELV KJ6LZR KP4MD N6YG W6AWS WG6CFS WW8L WB6ISO KG6TZT W6EDV KI6MAG WA6VPJ KJ6SVS N7IL WB6VYH K6ROB KK6GMN KK6CNL K6HUH K5JCH KC5JAX K7AGE KD8NZM N6RIK KK6JZM WB6YLK KD6MOO KE6KA WP2N KK6WSP KK6YDC KK6YYF W6TEE NS3O-SK AI6DG K6ERF KO6KL AI6DG KK6DCT N6KEN N6EMF KL7HQR N6PGQ NR6H AE6JG N6ACU K6ZK N6HA KI1TTY KR6RAO
K6AVB N6HA KO6AGW K6SQY
With MMSSTV for Windows, (MultiScan for MAC, QSSTV for Linux, SSTV Encoder & Robot36 Decoder for Android, SSTV Pad for iOS, or DroidSSTV for Android) you can receive pictures by placing your computer microphone by your receiver speaker, and transmit by keying your radio microphone next to the computer speaker.
This acoustic coupling method can produce usable pictures with quality depending on variations in audio level and background noise pickup by the microphone.
Links
Wikipedia on Slow Scan Television • G0HWC's SSTV Site • The HRC SSTV Notebook
Other VHF/UHF SSTV Nets
FCARC SSTV Net Appleton, WI • WA7ABU SSTV Net Salem, OR •
Central Coast ARC SSTV Net Australia • KB4YZ SSTV Net List
RSV codes for SSTV transmissions
R – Readability S – Strength V – Video
1 Unreadable Faint signal, barely perceptible, Picture unreadable
2 Barely readable, Very Weak, picture barely visible
3 Readable with difficulty, Weak, Readable with flaws
4 Readable with no difficulty, Fair, Very good picture some flaws
5 Perfectly readable, Fairly Good, Perfect picture no flaws
6 Good
7 Moderately Strong
8 Strong
9 Very strong signals
DOWNLOAD SSTV SOFTWARE!
Windows: MMSSTV software by JE3HHT (free)
Mac: MultiScan software by KD6CJI (free)
Linux: QSSTV (free)
Android: Robot36 Decoder software by A Inan (free)
Android: SSTV Encoder by Olga Miller (free)
iOS: SSTV Pad by Black Cat Systems ($2.99)
Windows DSSTV: EasyPAL Digital SSTV software by KC1CS (free)
Test your software by decoding this Martin 1 SSTV audio file
To improve picture quality by maintaining optimal modulation level and eliminating background noise, connect your radio and computer through a sound card interface like RIGblaster, SignaLink, or homebrew (see below).
You may also receive pictures with a simple audio cable between the receiver speaker output and the computer line input (or microphone input via an attenuator).
An optocoupler or audio transformer interface will eliminate ground loops and provide the cleanest modulation for transmitting.
International Space Station SSTV Event - December 26 - 31, 2021
Ryan Toomey K6ELV shares these schematic diagrams for sound card interfaces.
Standard interface that uses PC COM port for keying:
VOX interface that requires NO serial port for keying:
Sacramento California FM repeater SSTV Image mode training net