Experiences on 630 metres
630 metres is an interesting band. It's challenging to radiate a signal, especially if you have limited space for an antenna. Nevertheless it supports long distance groundwave propagation better than higher frequency bands like 160 metres.
This means that even if your antenna is more lossy there are certain distances where signals on 630 metres can be stronger than those on 160 metres, especially during the day. Australian amateurs first got access to 630 metres in 2013.
These videos show my experiences with the band since then.
The first 630m activity heard in Melbourne, Australia.
Reception from near the beach
Receiving VK3KHZ beacon on 630m on converter with ferrite rod.
160m WSPR tests - from home and portable
Transmitting 630m WSPR with 200mW from a Zachtek WSPR transmitter. Firstly from home and then portable.
Comparison with other frequencies
Before VK amateurs got 630 metres some had experimental licences for frequencies around 500 kHz. There they had to use an experimental callsign.
These favourably reviewed books may be useful for those seeking more information on 630 metre equipment, antennas and operating.
Items were chosen for likely usefulness and a satisfaction rating of 4/5 or better.
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