Date   

Re: QUESTION,...tape measure yagi

Amir K9CHP
 

Mine is just held together by friction/pressure, no glue, so I can easily take the boom apart, and stuff the entire kit and caboodle in a canvas bag/small briefcase, the elements fold in, so does the coax, connectors etc. And as Clint said, the antenna works. This will be the antenna I'll use when traveling. A totally different class from any whip, no question about that. As for a fair comparison with the Arrow or Elk, well, here is what I have to say. Either it works, works well, or doesn't work. IMO, all three, tape measure beam, Elk and Arrow work well.

I checked SWR on 2m and it is quite acceptable (I don't remember the exact numbers) and I used it both in Rx and Tx. I did not Tx on 70cm for sats of course, but I did use it on repeaters. Worked well here too.

 

 

========================

73 de K9CHP Amir Findling, Member ARRL, ARRL/ W5YI VE, WAC, WAS, DXCC

www.K9CHP.net Blog: http://k9chp.blogspot.com

Eagle Valley Search Dogs, Senior K9 Handler

K9 Certification Tester, NYS Federation of Search Teams

1st Special Response Group (1SRG)


On 3/24/2010 15:16, K6LCS wrote:
 

A re-post of mine from last December ...

I am preachin' to the choir here with this post, I am sure. But since Southern
California was under STORMWATCH again last night (we're expecting at least
0.03" of precipitation), I decided to build one of those cheap "tape measure 2M
Yagi" antennas from plans seen all over the Web.

I mean, I mention them during my satellite presentations as an affordable entry
into high-gain ... I have a couple links on my Work-Sat Web site for plans ...
I can see in theory where they should work - but I've never built one myself.

So I stuck the PVC pipes together ... soldered the matching element ...
straightened it all out, and took it outside for a test.

OH MY GAWD.

This is something that EVERY ham should do. What a dramatic increase in a
handheld's performance a couple dollars' worth of stuff can accomplish! I heard
a NOAA WX station (technically, out of range for this 2M Yagi) in San Diego
that I have never heard from the house before. Every repeater of the six I
immediately hit were received more clearly than with even the best of HT
antennas ... and as good or better than my Cushcraft A148-3S (retailing for
sixty bucks).

Sorry - have to stop writing. I am way too old to get this excited about this
hobby ...

Clint Bradford, K6LCS
http://www.work-sat.com


Re: QUESTION,...tape measure yagi

ve2xpl <ve2xpl@...>
 

so..if I understand correctly, you used the SAME tape measure yagi for BOTH Tx & Rx ???

PETE
ve2xpl


Re: QUESTION,...tape measure yagi

ve2xpl <ve2xpl@...>
 

EXCELLENT...I only ask because, after we spoke some time ago about this project, I thought it would be fun to build one & try it out, show it off to the local club...but if it can have enough gain to successfully reach the sats, well, I think it,d be a great compliment to the cheap & easy downlink antenna I just built, &, (& this is the best part) what a great conversation piece...especially if i can get something that will most likely look like some sort of post-modern art to communicate with sats...more information on this to follow...it will most likely be a few weeks before I have free time to build it...until then, I will keep listening to the sats & practice tracking them...

thanks for the advice.

Pete


Re: QUESTION,...tape measure yagi

K6LCS <clintbrad4d@...>
 

A re-post of mine from last December ...

I am preachin' to the choir here with this post, I am sure. But since Southern
California was under STORMWATCH again last night (we're expecting at least
0.03" of precipitation), I decided to build one of those cheap "tape measure 2M
Yagi" antennas from plans seen all over the Web.

I mean, I mention them during my satellite presentations as an affordable entry
into high-gain ... I have a couple links on my Work-Sat Web site for plans ...
I can see in theory where they should work - but I've never built one myself.

So I stuck the PVC pipes together ... soldered the matching element ...
straightened it all out, and took it outside for a test.

OH MY GAWD.

This is something that EVERY ham should do. What a dramatic increase in a
handheld's performance a couple dollars' worth of stuff can accomplish! I heard
a NOAA WX station (technically, out of range for this 2M Yagi) in San Diego
that I have never heard from the house before. Every repeater of the six I
immediately hit were received more clearly than with even the best of HT
antennas ... and as good or better than my Cushcraft A148-3S (retailing for
sixty bucks).

Sorry - have to stop writing. I am way too old to get this excited about this
hobby ...

Clint Bradford, K6LCS
http://www.work-sat.com


Re: QUESTION,...tape measure yagi

K6LCS <clintbrad4d@...>
 

Psssst! If you can keep a secret - 'cause I would NEVER state this in public -

It DID work for me on a pass of AO-51.

No, it is not "tuned" to both bands. No, I didn't perform any SWR readings on both bands. No, I didn't blow any finals in my HT ...

But it worked.

Clint

--- In Work-Sat@yahoogroups.com, "ve2xpl" <ve2xpl@...> wrote:

hELLO...DOES ANYONE KNOW IF THE 'TAPE-MEASURE YAGI' WOULD WORK AS A SATTELITE UPLINK ANTENNA???


QUESTION,...tape measure yagi

ve2xpl <ve2xpl@...>
 

hELLO...DOES ANYONE KNOW IF THE 'TAPE-MEASURE YAGI' WOULD WORK AS A SATTELITE UPLINK ANTENNA??? i HAVE BEEN WANTING TO BUILD THAT PARTICULAR ANTENNA. (ooPs...caps lock was on...I'm not yelling!) :-)

Pete VE2XPL


Greetings & Salutations from the newbie!!! :-)

ve2xpl <ve2xpl@...>
 

Hello everyone...I am new to the group. Wanted to introduce myself. Name's Pete (VE2XPL). I live in Montreal Canada. I am an electrical engineering technologist working in a Children's Hoapital here in Mtl.

I have been licenced as a amateur radio guy since 1995, but was inactive for a number of years, & came back to the hobby about 3 yrs. ago. I have been having alot of fun with Echolink (my link station is VE2XPL-L...drop by anytime) & I also like to homebrew all sorts of antennas...

I recently ( 3 days ago) built the 'cheap & easy yagi' by N2SPI for downlink, & couln't beleive how well it works (full quieting on 2 passes of AO-51)...built it almost all out of junk box parts, except for the terminal bloc, which cost me all of $2.35. (see .PDF article posted by Clint K6LCS in <FILES> page). Now, I have to make un uplink antenna, & actually make a contact...a project for an upcomming week-end. I will keep you posted (& will most likely have many questions in the process)

73

Pete VE2XPL
Montréal


New file uploaded to Work-Sat

Work-Sat@...
 

Hello,

This email message is a notification to let you know that
a file has been uploaded to the Files area of the Work-Sat
group.

File : /VE2XPL-ANT.pdf
Uploaded by : k6lcs <clintbrad4d@earthlink.net>
Description : Pete, VE2XPL, builds the "Cheap & Easy" sat Yagi!

You can access this file at the URL:
http://groups.yahoo.com/group/Work-Sat/files/VE2XPL-ANT.pdf

To learn more about file sharing for your group, please visit:
http://help.yahoo.com/l/us/yahoo/groups/original/members/forms/general.htmlfiles

Regards,

k6lcs <clintbrad4d@earthlink.net>


Home-brew Antenna WORKS

K6LCS <clintbrad4d@...>
 

From a friend in Canada ...

Just thought I would share my weekend project with you. Now that spring is here, I decided to finally try to build the "Cheap and Easy Satellite Downlink Antenna" by Richard F. Crow, N2SPI (link from your Web site ...

http://web.me.com/clintbradford/Work-Sat/Antennas.html

I built it leisurely over the course of Saturday afternoon. It was very easy (I actually realized after completing each step, that the process was easier to accomplish than it was to understand when I was reading the instructions! :-). I had all the materials in my junk box, except for the terminal blocks, which I purchased for $2.35. I substituted the laminated cardboard for corrugated stuff I had from an old Fridge Box, the elements are 12 gauge electrical copper wire, and I also had to angle the director & reflectors a bit differently than the original design to get the antenna resonant on 435.300 MHz. I bungee corded my HT to the handle of the boom.

BUT IT WORKS. HOW EXCITING to hear my 1st communication from a satellite (AO-51) on 2 different passes this afternoon!!! At first all I could hear was what I thought to be the faint sounds of a QSO, then I thought I must be imagining ... but a few seconds later, it cam in as clear as day ... FULL QUIETING was achieved for several minutes ... I could not beleive my ears!!!

I was not installed to transmit yet ... I simply wanted to test the reception of my homebrew antenna. And it was a great success. Now I need to practice tracking the birds, and also build the uplink antenna (a weekend project for the near future - that fridge box is huge & can yield many more antennas).

Thanks for the inspiration, Clint! I will keep you posted on my new adventures.

Pete
VE2 XPL Montréal


Re: HO68

K6LCS <clintbrad4d@...>
 

It's weird schedule is one of the reasons I don't include '68 in my sessions. Check their Web site for their bizarre schedule.


HO68

John Moncak
 

the HO68 sat not sure if im reading it right i see alot of linear times on and digital havent seen fm that often is that the way it is or is something wrong with it .ok 73 ke3lb


A Little Off-topic ...

K6LCS <clintbrad4d@...>
 

Here are 22 video snippets from a visit to a Predator training facility I attended this morning.

http://www.vimeo.com/clintbradford

Clint


Re: SAT TALK - Southern Illinois Univ, 3/16/2010, 6:00 pm

K6LCS <clintbrad4d@...>
 

Melvin - I am not sure right now how to set up such a "conference call" tonight. I'll reply later tonight - there's another Skype show tomorrow, and EchoLink ones in the future.

Clint


Re: SAT TALK - Southern Illinois Univ, 3/16/2010, 6:00 pm

Melvin Perez
 

how can i join this presentation via skype? do i need to go to a specific room or do i need an autorization? please help
 
Melvin Perez
KP4MPR
Node 7697 Aguada, PR
Freq. 146.570 MHZ
Tone 100.00 HZ




From: "Work-Sat@..."
To: Work-Sat@...
Sent: Sun, March 14, 2010 8:58:35 PM
Subject: [Work-Sat] SAT TALK - Southern Illinois Univ, 3/16/2010, 6:00 pm



Reminder from:   Work-Sat Yahoo! Group
 
Title:   SAT TALK - Southern Illinois Univ
 
Date:   Tuesday March 16, 2010
Time:   6:00 pm - 8:00 pm
Location:   Southern Illinois University campus
Notes:   Clint Bradford, K6LCS, will be presenting his "Working Amateur Satellites With Your HT" multimedia session via Skype.

Attendees should download Clint's four-page tutorial and radio programming matrix before the meeting from ...

http://www.work-sat.com

And Clint welcomes pre-presentation questions - call him at 909-241-7666, or send email to clint@...
 
Copyright © 2010  Yahoo! Inc. All Rights Reserved | Terms of Service | Privacy Policy



Survey Says ...

K6LCS <clintbrad4d@...>
 

Responding to some of your comments left in the customer satisfaction survey ...

- Clint, you fail to cite Orbitron for satellite tracking software ...

Orbitron is a Windows app, which I have personally not run. I wasn't impressed with the fact that it has not been updated since September of 2005. But if it is working for people, that's great.

- Clint, you fail to cite SatScape for sat tracking software ...

I did try out SatScape. It is a Java app, so it should run on most any Windows PC, Apple, or Linux machine. It took me longer to set it up than Nova for Windows. But it appears to be a supported, solid application. On my MacBook Pro, it makes me close and re-open to accomplish some basic ops. But it is showing current location of my chosen sats correctly.

- Clint, SatelliteTracker Plus is a less-expensive app for the iPhone and iPod touch ...

It is, indeed. I am just a fan of PocketSat. And you are correct: Of the 102 apps that I have paid for for my iPod touch, PocketSat3 was the most expensive, at $24.95. Maybe it's because I have "grown up" with PocketSat+ for the Palm, and it is "comfortable" to use for me. It certainly is more "pleasant" to look at, with its great graphics of the Earth and sat passes. SatelliteTracker Plus by Susan Mackay looks like a solid app.

- Dude, where's the 'Droid apps?

Android is a platform that I have NO machines to test. But a participant recommends ...

HamSatDroid - http://sites.google.com/site/hamsatdroid/

- I'd like to see projects like easy to build elevation rotors ...

Beyond the scope of what I am trying to accomplish. I want to get fellow hams on the air with the easy-to-work sats, using equipment they probably already own. THEN they can graduate to sats that require elevation rotators.

- ... mention the use of a GPS for location Lat/long for tracking programs and Maidenhead for the report ...

I am using Maidenhead on my iPod touch. Although my "target audience" for this site is mostly hams at home (and we SHOULD all know our home grid squares, right???), if one travels out of their immediate area, quickly obtaining grid square info is important. I mention this in my presentations (" ... If you're at a fellow ham's house, their QRZ entry shows grid square info ... " and " ... the ARRL.org site has easy-to-use grid square locators ... ").

- How to connect a tripod to a yagi or beam.

Interesting! The Arrow satellite antennas are tapped for tripod mounting (pull off the foam grip). And the Elk log periodics and their PVC pipe construction just BEG to to mounted in all sorts of different ways by resourceful hams! This is a great topic for a photo album in the future.

- ... the need for 440 preamp on the mast ...

Not a necessity for the "easy FM sats." There's been a couple sat antenna construction articles in QST recently, where the use of a pre-amp was called for. But to successfully work several satellites, we're just slightly improving the stock duck on a handheld ... or using handheld Yagis. Pre-amps have their place - but not for my audience at the beginning stages of working the birds.

- Maybe a section or two about more advanced amateur satellite operation, such as packet radio, and downloading telemetry and images from satellites such as ITUpSAT1 and the ISS ... homebrew diplexers ...

MORE GREAT IDEAS - but I just want to keep the current site "plain and simple" for getting folks started on the birds.

THANK YOU ALL for your input!

Clint Bradford, K6LCS
909-241-7666


From the In-box ...

K6LCS <clintbrad4d@...>
 

... I have a question about the Notes in your pdf Work Satellites with your HT. I see asterisks after the AO-51 TX frequencies, I would like to know what they are there for?
The asterisk is referenced below the chart - to remind folks to check the Control Operators' schedule ... because there's more than one pair of V/U frequencies on AO-51!

Clint
909-241-7666


Yes, AO-51 WAS Down ...

K6LCS <clintbrad4d@...>
 

There was a brief period on the 14th when AO-51 was unexpectedly down ... But back up by 2:45PM Pacific Daylight Time.

The AO-51 Control Team never cease to amaze me with how they maintain the bird for us to enjoy!

Clint Bradford, K6LCS


SAT TALK - Southern Illinois Univ, 3/16/2010, 6:00 pm

Work-Sat@...
 

Reminder from:   Work-Sat Yahoo! Group
 
Title:   SAT TALK - Southern Illinois Univ
 
Date:   Tuesday March 16, 2010
Time:   6:00 pm - 8:00 pm
Location:   Southern Illinois University campus
Notes:   Clint Bradford, K6LCS, will be presenting his "Working Amateur Satellites With Your HT" multimedia session via Skype.

Attendees should download Clint's four-page tutorial and radio programming matrix before the meeting from ...

http://www.work-sat.com

And Clint welcomes pre-presentation questions - call him at 909-241-7666, or send email to clint@...
 
Copyright © 2010  Yahoo! Inc. All Rights Reserved | Terms of Service | Privacy Policy


Re: HTs and antennas..

K6LCS <clintbrad4d@...>
 

... Doesn't seem like any of them are full duplex ...
Only that new Alinco HT is "true" full duplex. I have been told by one owner that the most current firmware update does improve what has been described as "poor" sub-band receive sensitivity. I will get one, and see how it works.

And, of course, it is NOT mandatory that we work full-duplex - just a convenience to be able to hear the downlink when you key your mic.

... anyone tried a dual-band quad? Seems like a 2 element 2m and a three element
70cm quad on the same boom ought to be easy...
Ross - with A)-51 at 2.05W downlink power right now, just get yourself a few db of gain both ways, and you'll be successful!

Please keep us updated with what you use for an antenna.

Clint, K6LCS


HTs and antennas..

Ross Primrose N4RP <n4rp@...>
 

Any thoughts on current HTs suitable for working the FM birds? Doesn't seem like any of them are full duplex...

On antennas, seems for the FM birds, crossed Yagis are popular, anyone tried a dual-band quad? Seems like a 2 element 2m and a three element 70cm quad on the same boom ought to be easy...

73, Ross N4RP

--
FCC Section 97.313(a) �At all times, an amateur station must use the minimum transmitter power necessary to carry out the desired communications.�

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