Re: [Repeater-Builder] Antenna separation for UHF repeater operation
20ft. Vertical separation assuming vertically polarized omni antennas are used. Alan Sent from my Verizon Wireless BlackBerry -Original Message- From: Aisen Lopez Date: Sun, 31 May 2009 18:16:14 To: Subject: [Repeater-Builder] Antenna separation for UHF repeater operation Hello: I realize this question must be "old boring stuff" nonetheless I will ask it. I'm planning on installing a GMRS repeater and I would like to use two antennas instead of a Duplexer/Antenna combination. What would be a good separation distance for a standard Split of 5 MHZ, two 5 dB antennas an 35 Watts of power?. Thanks in advance...
RE: [Repeater-Builder] Antenna separation for UHF repeater operation
If we assume that both antennas are identical and mounted inline and directly one above the other, and assuming a receiver sensitivity of 0.25 uV, a vertical spacing of 39 feet should provide sufficient isolation between RX and TX. This assumes solid-shield RX feedline, such as Heliax, with the RX antenna at the top. Obviously, more separation is better. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Aisen Lopez Sent: Sunday, May 31, 2009 6:16 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Antenna separation for UHF repeater operation Hello: I realize this question must be "old boring stuff" nonetheless I will ask it. I'm planning on installing a GMRS repeater and I would like to use two antennas instead of a Duplexer/Antenna combination. What would be a good separation distance for a standard Split of 5 MHz, two 5 dB antennas and 35 Watts of power?. Thanks in advance..
[Repeater-Builder] Antenna separation for UHF repeater operation
Hello: I realize this question must be "old boring stuff" nonetheless I will ask it. I'm planning on installing a GMRS repeater and I would like to use two antennas instead of a Duplexer/Antenna combination. What would be a good separation distance for a standard Split of 5 MHZ, two 5 dB antennas an 35 Watts of power?. Thanks in advance...
