I've been on the birds off an on for years. I have an M2 cir. polarized pair at home QTH and am looking into a more modest installation for a summer cottage. I've built the K5OE eggbeater imitations and founds them to be only fair.I could by M2 eggbeater pair but I'm trying to do this on less $. I also have an Arrow antenna which I've tried some with a HT with only fair results. Any other suggestions out there? Mount the Arrow more permanently but at a fixed elevation and use a simple rotor to change azimuth? How about a homebrewed quagi? Any suggestions appreciated.
Rick W2JAZ
Hi Rick, I too tried the eggbeaters and found them worthless. Also tried a commercial made quadrifilar rx from antenna.us. then...
In the ARRL Satellite Handbook found the Moxon turnstile for the LEOs. Being a fan of Moxons, I have built both the tx and rx and am quite please with performance over the past antennas. Built all from pvc and brass tubing from the hobby shop. You should be able to build both for less than _+ $25.00 and your junk box.
The article is on the ARRL site or maybe search internet (Moxon turnstile antenna)
I think this will fill your requirements
GL, Ted K7TRK
-----Original Message----- From: amsat-bb-bounces@amsat.org [mailto:amsat-bb-bounces@amsat.org] On Behalf Of Richard Lawn Sent: Sunday, January 23, 2011 9:47 AM To: amsat-bb@amsat.org Subject: [amsat-bb] Antenna Observations/Question
I've been on the birds off an on for years. I have an M2 cir. polarized pair at home QTH and am looking into a more modest installation for a summer cottage. I've built the K5OE eggbeater imitations and founds them to be only fair.I could by M2 eggbeater pair but I'm trying to do this on less $. I also have an Arrow antenna which I've tried some with a HT with only fair results. Any other suggestions out there? Mount the Arrow more permanently but at a fixed elevation and use a simple rotor to change azimuth? How about a homebrewed quagi? Any suggestions appreciated.
Rick W2JAZ _______________________________________________ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
Rick.
on the "cheap" antenna front I've tried and had pretty good success with two things.
First there is a 5 element Yagi design that was published in QST that uses/modifies an Archer 5 element FM yagi. I built one and added some 70 cm elements 90 out of phase and thats worked great. My home QTH is in a bit of flux (we are moving to a farm out by Santa Fe Tx from my home QTH in Clear Lake TX) so I built another one, put them both on a boom 90 degrees out in an X configuration, stuck them at 33 degrees and they work well. I will keep them once we move into the perm QTH.
I've also used the crossed dipoles and Lindenblad antenna from QST (not the AMSAT one) and they work great. I modified one for WX satellite reception and am very happy with them.
I am in Nigeria now and have a modified Lindenblad for my WX station here but its copied really well most of the two meter Oscars including AO-7. I didnt have Nigerian operating authority when I left the states (but now have a five year license) so I didnt bring any transmit equipment...but from the roof of the Sheraton in Abuja the WX version works great. I've got permission to set up permanent antennas on the Sheraton and I will be back so am going to have some good operating here.
I would upload pictures, but I tried to upload some of the really big HF array on the road to the airport and they never showed up...if you want some pictures of what I have at home I will be happy to send them to you. IN about two weeks!
Robert G. Oler WB5MZO Life member Amsat/ARRL
Date: Sun, 23 Jan 2011 12:47:10 -0500 From: rjlawn@gmail.com To: amsat-bb@amsat.org Subject: [amsat-bb] Antenna Observations/Question
I've been on the birds off an on for years. I have an M2 cir. polarized pair at home QTH and am looking into a more modest installation for a summer cottage. I've built the K5OE eggbeater imitations and founds them to be only fair.I could by M2 eggbeater pair but I'm trying to do this on less $. I also have an Arrow antenna which I've tried some with a HT with only fair results. Any other suggestions out there? Mount the Arrow more permanently but at a fixed elevation and use a simple rotor to change azimuth? How about a homebrewed quagi? Any suggestions appreciated.
Rick W2JAZ _______________________________________________ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
Tnx to all for useful replies. I'm now going to do a bit more research before striking out to build something I haven't yet tried on the says - either quagie or moxon or both. Spring had to be coming!
On Sunday, January 23, 2011, Rocky Jones orbitjet@hotmail.com wrote:
Rick.
on the "cheap" antenna front I've tried and had pretty good success with two things.
First there is a 5 element Yagi design that was published in QST that uses/modifies an Archer 5 element FM yagi. I built one and added some 70 cm elements 90 out of phase and thats worked great. My home QTH is in a bit of flux (we are moving to a farm out by Santa Fe Tx from my home QTH in Clear Lake TX) so I built another one, put them both on a boom 90 degrees out in an X configuration, stuck them at 33 degrees and they work well. I will keep them once we move into the perm QTH.
I've also used the crossed dipoles and Lindenblad antenna from QST (not the AMSAT one) and they work great. I modified one for WX satellite reception and am very happy with them.
I am in Nigeria now and have a modified Lindenblad for my WX station here but its copied really well most of the two meter Oscars including AO-7. I didnt have Nigerian operating authority when I left the states (but now have a five year license) so I didnt bring any transmit equipment...but from the roof of the Sheraton in Abuja the WX version works great. I've got permission to set up permanent antennas on the Sheraton and I will be back so am going to have some good operating here.
I would upload pictures, but I tried to upload some of the really big HF array on the road to the airport and they never showed up...if you want some pictures of what I have at home I will be happy to send them to you. IN about two weeks!
Robert G. Oler WB5MZO Life member Amsat/ARRL
Date: Sun, 23 Jan 2011 12:47:10 -0500 From: rjlawn@gmail.com To: amsat-bb@amsat.org Subject: [amsat-bb] Antenna Observations/Question
I've been on the birds off an on for years. I have an M2 cir. polarized pair at home QTH and am looking into a more modest installation for a summer cottage. I've built the K5OE eggbeater imitations and founds them to be only fair.I could by M2 eggbeater pair but I'm trying to do this on less $. I also have an Arrow antenna which I've tried some with a HT with only fair results. Any other suggestions out there? Mount the Arrow more permanently but at a fixed elevation and use a simple rotor to change azimuth? How about a homebrewed quagi? Any suggestions appreciated.
Rick W2JAZ _______________________________________________ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
participants (3)
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Richard Lawn -
Rocky Jones -
Ted