Search found 36 matches

by joe36
Sat Aug 27, 2016 3:35 am
Forum: Antennas
Topic: KZJ COMMUNICATIONS ANTENNA
Replies: 2
Views: 5904

Re: KZJ COMMUNICATIONS ANTENNA

You are correct in your suspicions. It is not up to the claims. The question was asked. What frequencies? This is a critical question to ask if you want results. The easy answer for the frequency an 820 dongles will cover is a discone as high as you can get it in as clear a location as possible. Som...
by joe36
Sat Aug 27, 2016 3:20 am
Forum: Antennas
Topic: need recommandation for better signal
Replies: 10
Views: 13551

Re: need recommandation for better signal

Antennas are easy and fun. I would suggest at looking into at least a minimal study of antenna basics. There is a lot of free good information on the net. You might even watch some short you tube videos. Once you have down the basics it becomes very easy to build an antenna for pennies.
Joe KA9UCN
by joe36
Sat Aug 27, 2016 12:57 am
Forum: RTL-SDR Discussion
Topic: rtl to ham? not as far as you think!
Replies: 4
Views: 4938

rtl to ham? not as far as you think!

As a older ham I am finding that a lot of technology is overlapping in ways that not long ago was unthinkable. With this in mind. I have wondered into the TV dongle world and with great delight have found 2 predominant groups of people. One with a wealth of great and useful knowledge and another wit...
by joe36
Fri Aug 26, 2016 3:53 pm
Forum: Antennas
Topic: need recommandation for better signal
Replies: 10
Views: 13551

Re: need recommandation for better signal

I don’t think there will be one but. If there is a filter. It will not be much of one. Probably no more than a coil or 2 and a capacitor or 2. Just disconnect the circuit and run the input wire to the output. You would do better to solder but probably not necessary. Once you get it open it will be o...
by joe36
Thu Aug 25, 2016 11:15 pm
Forum: Antennas
Topic: need recommandation for better signal
Replies: 10
Views: 13551

Re: need recommandation for better signal

it will work but you may have to open it and remove any filter components if it has any.


Joe KA9UCN
by joe36
Sat Aug 20, 2016 6:33 pm
Forum: Antennas
Topic: 10khz - 50mhz/55mhz antenna
Replies: 1
Views: 6040

Re: 10khz - 50mhz/55mhz antenna

An active antenna is one that uses an active component such as a LNA. The usable frequency of this type antenna is the pass ban of the amplifier. Now the question and I hope some help with the answers. 1 how much room do you have and how much effort do you want to expend. The most efficient antenna ...