[amsat-bb] Feeding Two Arrow Antennas for X-Polarization

[Stephen E. Belter]

John,

I believe the preamp worked OK.  Since it was a wideband preamp (no significant filtering), it is best suited for receive-only applications like copying telemetry.  

If used in a full-duplex situation, additional filtering is required or large separation between the transmit and receive antennas.

73, Steve N9IP
--
Steve Belter, seb at wintek.com



On 10/2/18, 3:04 PM, "AMSAT-BB on behalf of johnv at frontier.com" <amsat-bb-bounces at amsat.org on behalf of johnv at frontier.com> wrote:

     I'm looking at this project and it appears to be still able to replicate except for the ""WRAPS Project Parts in the AMSAT Store".     But it is no longer offered at the store.
    
    Was the per-amp inefficient, unstable or just not work?    (not knocking anyone)    If it's okay, I was hoping someone had one surplus to sell at a reasonable price plus shipping?    All the other parts are available, maybe at a higher cost but available.
    Thanks and please send direct to my email and not on the BB.
    
    N7AME
     
    
        On Tuesday, October 2, 2018, 10:31:49 AM PDT, <jerry.tuyls at telenet.be> wrote:  
     
     Hoi Frank
    
    look here:https://www.amsat.org/wordpress/xtra/WRAPSArticlewithStoreAd.pdf
    
    best 73's
    
    Jerry,ON4CJQ
    
    ----- Oorspronkelijk bericht -----
    Van: "Frank Karnauskas" <n1uw at gokarns.com>
    Aan: "amsat-bb" <amsat-bb at amsat.org>
    Verzonden: Dinsdag 2 oktober 2018 16:25:41
    Onderwerp: [amsat-bb] Feeding Two Arrow Antennas for X-Polarization
    
    If anyone is using a pair of Arrow antennas for a cross-polarized
    installation, I would appreciate hearing how you are feeding them.
    
    I have one already and I am considering getting another to work up an el-az
    setup for portable operation.
    
    Thanks in advance.
    
    73,
    Frank N1UW
    N1UW at GOKARNS daht com
    
    
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    _______________________________________________
    Sent via AMSAT-BB at amsat.org. AMSAT-NA makes this open forum available
    to all interested persons worldwide without requiring membership. Opinions expressed
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    Not an AMSAT-NA member? Join now to support the amateur satellite program!
    Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb