Picture courtesy of Fledermaus-Andrea from BathWhat a classic antenna the AV-170 Sigma II from Avanti was!!
Second only to the Avanti AV-174 Sigma IV, the Sigma II was a superb 5/8 wave base antenna.
Standing at 21 1/2 feet tall, with 4 x 9 foot long radials, this beauty would get you heard on Channel, and could handle 2000 Watts of power [apparently!]
With a gain of 5.14 dBi, this would make the signal about 1 'S' point stronger both on TX and RX, than when using a quarter wave antenna.
5 comments:
I love mine.. I still have it after all these years..I have ran 3kw into it and its like a TimeX watch..Takes a licken and keeps on ticing..When I was on the radio they knew me as LDO 001 Los Angeles
If anyone has any pics of this first hand. I think I have one from my grandfather, but groundplane and mount missing. Measures 17'8" top part. Anyone know where to get parts leave a msg I'll leave an email.
Thanks
Yes! One of the BEST antennas ever made hands down! I have one and it works great! I love mine! Sadly, the center fiberglass insulator is impossible to find, and if it breaks the antenna is done. The maco V 58 is pretty close to what the Sigma 5/8 is.
message for the site owner i just found my old boxed commtel electronica special 5/8ths wave antenna in boxed condition would you like any pictures of it cheers mike st helens merseyside.
To "Mike"
Yes please, if you could send pictures to the e-mail address on this link http://thecbmuseum.blogspot.com/2008/06/contact.html
Thank you!
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