I have a 20 176 Rat Shack sputnik and have read its peak performance is in the 152-470MHz range. Its a dual band ant. It has a long radial for vhf and 2 shorter ones for uhf. Have not mounted it yet.
I saw online a Centerfire tri band and its peak Receive: 150-170 Mhz, 420-470 Mhz, 825-875 Mhz.
The only visual difference that I see is centerfire has 4 radials as the ground plane and Rat Shack has 3. They both have 3 radials on top. Centerfire radials are 3 different sizes. 1 for each band. The Rat shack has 3 also but 1 for vhf and 2 the same size for uhf.
If I shortened one of the uhf radials on the Rat Shack, would that make it a tri band?
And if so, I have 2 distant 500 and 770mhz systems as well as local 700 and 800 systems. I would like to know opinions of cutting one uhf radial for 600mhz. to get decent on 5/7/800 mhz systems.
Thanks
pics and specs
Ratshack Amazon.com: New RadioShack Outdoor VHF-Hi/UHF Scanner Antenna 20-176: Home Audio & Theater
Centerfire VHF-Hi/UHF Multi-Band
I saw online a Centerfire tri band and its peak Receive: 150-170 Mhz, 420-470 Mhz, 825-875 Mhz.
The only visual difference that I see is centerfire has 4 radials as the ground plane and Rat Shack has 3. They both have 3 radials on top. Centerfire radials are 3 different sizes. 1 for each band. The Rat shack has 3 also but 1 for vhf and 2 the same size for uhf.
If I shortened one of the uhf radials on the Rat Shack, would that make it a tri band?
And if so, I have 2 distant 500 and 770mhz systems as well as local 700 and 800 systems. I would like to know opinions of cutting one uhf radial for 600mhz. to get decent on 5/7/800 mhz systems.
Thanks
pics and specs
Ratshack Amazon.com: New RadioShack Outdoor VHF-Hi/UHF Scanner Antenna 20-176: Home Audio & Theater
Centerfire VHF-Hi/UHF Multi-Band