Archive for the ‘HamRadio’ Category


29 November, 2014

5-7 December 2014 on 27.635 Mhz

More info in


First on air test of the ROS Digital Repeater Mode‏

3 August, 2011

First on air test of the ROS Digital Repeater Mode (by Graham G0NBD)
Communication   where  established  on   28.295  Mhz  , all  stations  using  the  same   frequency
The RF  path   G0NBD  <>  IK2AOS    and     EA5HVK <>  IK2AOS ,
No  signal  from EA5HVK  could  be  observed  at  IO83LK 


Later  , the   cross band  function  was successfully   trailed, with a   HF / VHF  two  way   qso  between   G4WGT  and   EA5HVK using my  station  G0NBD  as the  cross  band  repeating  station.

G4WGT  using 144.980 and EA5HVK 10.134. 

The RF path G4WGT <> G0NBD <> EA5HVK  

EA5HVK software

10 January, 2011

  VARA HF v4.4.3 (High Performance HF Modem)

  VARA FM v4.1.3 (VARA for FM transceivers)

  VARA SAT v4.2.0 (VARA for QO-100 geostationary SAT)

  VARA Chat v1.2.5 (Text and File transfer P2P app)

  VARA Terminal v1.1.5 (VARA dumb terminal for BBS’s)


*********** VARA HF Info **************

images (219 x 219)  Sending Images over HF with VARA (by K2MO)

images (219 x 219)  Sending Large Text File Over HF With VARA (by K2MO)

images (219 x 219)  Winlink P2P session using VARA HF (by K8BZ)

images (219 x 219)  VARA HF connection (by NA9LE)

images (219 x 219)  Testing VARA HF 4.0 (by YV4KW)

images (219 x 219)  MicroHAMS Digital Conference 2020 – VARA (by W3RWN)

images (219 x 219)  RMS Express and VARA HF 4.0 (by M0IPU)

images (219 x 219)  Winlink Email. Asynchronous Ham Radio for Preppers (by OH8STN)

images (219 x 219)  Winlink Email. Asynchronous Ham Radio for Preppers (by OH8STN)

images (219 x 219)  Short tutorial on setting up and using VARA HF with Winlink software (by AG5AG)

images (219 x 219)  Winlink on HF using Icom-7200 and VARA HF (by AC3K)

images (219 x 219)  New Winlink record Hawaii to Switzerland 12273 km (by KH6ML)

images (219 x 219)  Modalidad VARA en Winlink (By XE1BRX)

images (219 x 219)  VARA Transmision de datos Alta Velocidad (By XE1BRX)

images (219 x 219)  HF Telsiz Üzerinden E-mail gönderme

images (219 x 219)  How to disable the Windows 10 Update permanetly with Simplewall

  VARA HF 4.3 Quick Guide

  VARA HF 4.0 kurzanleitung   germany-flag (25 x 17)

  VARA HF Tactical

  VARA Documentation

  VARA Huffman compression

  VARA TNC Commands (for developers)

  CM108 Simple Soundcard Interface

  VARA Modem: Innovation aus Spanien (by HB9AUR)  germany-flag (25 x 17)

  “VARA”, e il modem non c’è più (by IZ2RLJ and IZ5IVV)  bandera-italia (25 x 17)

  VARA Eine innovative Softwarelösung zur Übertragung von Daten über Funk (by HB9NBG)  germany-flag (25 x 17)

  Operación con VARA y Winlink Express (by EA3OG)  

images (219 x 219)  Webinar modo digital VARA en español (by XE1BRX)

images (219 x 219)  VARA Chat over HF (OE3FQU<->OE3CQB)

images (219 x 219)  Testing VARA (by K2MO)


*********** VARA FM Info **************

images (219 x 219)  STAN CO ARES VARA FM presentation

images (219 x 219)  99 miles Ham Radio Email. Winlink VARA FM (by KH6ML)

images (219 x 219)  25,210 bps maximum transfer rate for VARA FM (by KN4DQE)

images (219 x 219)  VARA FM and VARA Terminal. Connection to a BBS (by N3HYM)

images (219 x 219)  VARA FM and UV5X on UHF (by N3MLB)

images (219 x 219)  VARA FM with a FT3D (by N3MLB)

images (219 x 219)  Simple VARA direct cable interface for EMCOMM (by KH7O)

images (219 x 219)  Icom IC208H VARA FM Wide Signalink Black (by KH7O)

  VARA FM 4.0 Features

  VARA Winlink Presentation 2020 (by NS7C)

  VARA FM guides (by K6OLI)

  VARA FM and Winlink Setup Guide (by AE7G)

  Winelink. Run RMS Express & VARA on a Raspi4 (by KI7POL)


*********** VARA SAT Info **************

  VARA SAT v4.0

  Winlink Email Server & WebSDR SAT QO-100 (by IS0GRB)

images (219 x 219)  VARA SAT QO-100 Winlink (by OE3XRC)

images (219 x 219)  Sending Email with VARA SAT over ES’HAIL-2 geosat (by I6IBE)



  Opera v1.6.5 (Weak signal ASK Beacon)

  El modo Opera – Revista CQ  (by EA3OG)  

  AirScatter 144Mhz with Opera (by EB5AL) 

  Welcome to the Opera  (by G0HDI)

  Opera Dynamic Search (G0NBD)

  Windows 7 audio tips  (by EA1II)

  Signalink USB modifications  (by G8APM)

  Opera Generator (Source Code)

  ROS v7.4.0 (Weak Signal Radio Chat)

  Le ROS, qu’est ce que c’est ?   (by F1UCG)   

  ROS F.A.Q. v3.0

  ROS F.A.Q. v3.0  

  ROS F.A.Q. v3.0 

  Análisis Modo ROS (by ANgazu)  

  El Modo ROS I, II y III – Revista CQ  (by EA3OG)  

  ROS Guia Rapida (by EA5HIZ) 

images (219 x 219)  ROS tutorial (by VE1XOP)

  Le mode ROS  (by 14GIM035)   

  Tutoriel – Icom IC-7300 et logiciel ROS de EA5HVK (Radioamateurs France)   

images (219 x 219)  ROS tutorial (by CS7AEL)   images (25 x 17)

  ROS Mode (by IK1AMC)   bandera-italia (25 x 17)