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Telescopic poles - what do you use?


#71

For those that do not need a lot of height a pair of well seasoned bamboo poles about 7’ each make excellent walking poles and lashed together make a fine mast.
C


#72

I use one of these, the 7.2 m version:

I toss the top section as its to light and then glue a piece of cord to the top using the traditional fishing rod method. I can get the centre of a dipole up 5m which is almost always enough. It collapses to a short enough length to fit in a pack.

I buy them 2 at a time. Have just put the second one into service as the first one is U/S after 4 years. They are cheap enough to not worry if you bust one to badly. Did I mention they are cheap???

I do have a heavier 10m pole but rarely use it.
Compton


#73

Only have one 10m pole which weighs about 900g and goes down to 1.2m. it lets me use a 10m in length half wave antenna as a vertical (almost) for 20m band.


#74

I use a Sotabeams travel mast and a Chinese fishing pole I bought on Amazon. The fishing pole is so much lighter. It’s about 18ft. Tried to buy the same fishing pole from amazon again but it’s out of stock. So I bought 2 of these on ebay

I bought 2 of the 7.2 meter ones. Haven’t had a chance to use it yet. Listing says carbon fiber but seems more like fiberglass to me.


#75

I’ve found the SOTABeams 10m travel mast to be quite delicate even though it is substantially heavier. I’d second most advice - use the 7m or 8m rather than the 10m unless you specifically need the height (I’m currently thinking about building a static car delta loop for 20m which may require 10m masts for example).

Regards, Mark. M0NOM


#76

Has anybody tried to use carbon-fibre poles?

Textbook advice says that they could work for inverted vees but not for verticals due to the conductivity of the material. Now, I would be interested to know how much of an effect you would expect, since

  • I assume that the carbon fishing poles will still be of a rather high-resistance material; I mean they are not pure copper or steel, so the practical effect might be limited.

  • They are a lot lighter and smaller than fiberglass ones, for instance, there is one 5m that collapses to 38 cm and weighs a mere 197g:

  • The better quality manufacturers of fishing gear tend to produce carbon ones only.

Any ideas / experiences? 200 g for a 5m mast sounds pretty promising, but I would want to use it with my loaded vertical described here.

Martin


#77

Martin, I think the carbon pole will work fine with your loaded vertical, but the resonant length is likely to change. A few years back I did many activations with a 7m carbon pole supporting a vertical wire into an antenna tuner and it seemed to work fine.

Barry N1EU


HF antennas on short masts
#78

Thanks, Barry! As my future vertical will include my T1 auto-tuner, I guess I can live with changing resonance. I plan to design a new version of my 40-30-20m loaded vertical, but this time

  • the coil will be closer to the center, i.e. in 1,6 - 2 m height, and
  • I will generally use my Elecraft T1 tuner as a fixed component in the setup, because for my activations, I need to be QRV as quickly as possible, and differences in deployment and soil need to be balanced out.

The 197g 5m pole from DAM is a promising component for this :wink:

Martin


#79

Decathlon pole 6 meters, collapsible 57 cms 570 grs.

Sotabeams 4.1 meters, ultracompact


#80

Mine arrived where the ends were cracked and they slide right out with no friction to keep them in place. It seems each one is off a bit. So what a waste of money NO MORE CHINESE stuff for me after waiting 60 days for it to arrive.

However, I did find a local sports store selling a 16 foot rod that works as it should for $20

The carrying case from the ebay rod will be used for my surf rod.

Sadly, the ebay rod is Rubbish as they say but I prefer Garbage
john ve3ips


#81

I’ve noticed alot of the travel poles are light “Tenkara” trout rods. Most don’t seem to have an eyelets. How are most holding verticals or dipoles up?


#82

I soldered a large solder tag to the end of my vertical, it slips over the end of the pole and lodges a few inches down.


#83

I cut the (very thin, whippy) top section off to give a stub that protrudes about 2" from the top joint, which I glue in place. This is short enough not to interfere with fitting the bung when collapsed. Then I use a small cable tie, adjusted to the right size, to slip over the stub and hold the fishing swivel that I use at the attachment point of all my aerials - it ledges nicely on the joint.


#84

I use about a 3-inch length of 300-ohm window line (twinlead) that I weave the pole tip through. I can then pass wires through the holes in the window line or attach the end of the vertical wire to it.


#85

Hi Jon,
This appears to be the same pole that is available from Lambdahalbe in Germany, which I have had two of them for a few years now, I can highly recommend.

http://www.lambdahalbe.de/zubehoer/gfk-masten/6m-gfk-mast/index.html

Ed.


#86

Any chance you can take a picture of this? That sounds like what I’m looking for.


#87

how I do mine is shown (in pictures) here:
http://g1ybb.uk/first-portable-lightweight-link-dipole/


#88

Loop made from single core 1.2mm copper wire. Soldered and then filed inside with a ratstail file so nothing rough. Another loop with top of vertical radiating wire attached. Inside diameter of loop that slips over telescopic pole is 4.5mm. Slides about 1/2 way down top section of 5 section 5m pole.


#89

When I’m out for several days and in a tent I use a Hengsheng 5.4 m carbon pole from Amazon:

Hengsheng 5,4 / 17.72ft Carbon tragbaren Teleskop Angelrute Ultralight Mini Pole Reisezielfischprogramme https://www.amazon.de/dp/B018HXG9VU/ref=cm_sw_r_cp_apa_dF8YAbK7F44VQ

I used epoxy to glue the two top sections together making it a bit stiffer. The poles come with a bit of cord glued to the end. I use that to tie the antenna holder to the top of the pole:

It’s just a bit of plastic folder threaded onto the small ring connector from a usb stick; weight = 0 grams! When I’m out for the day I use a 10m grp travel mast. For the antenna holder I use the rubber grip section from a ball point pen fed onto a mini carabiner:

I put a bit of heatshrink onto one of the top sections of the mast to get a good grip.

   de OE6FEG / M0FEU
                Matt

#90

It was a bit painful getting there… but here it is! Cable tie is just above the joint it ledges on.

73 de Paul G4MD