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Amateur Radio Antennas - For discussion of all amateur band designed antennas and related accoutrements. This includes base, handheld, mobile and repeater usage. For commercial antennas on the amateur bands please use Commercial Radio Antennas below.

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Old 04-27-2017, 1:42 PM
Join Date: Sep 2016
Location: Monterey, CA
Posts: 229
Default what can i make with this? 2m/70cm cb?


any thoughts besides a toddler bed.
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Old 04-27-2017, 1:58 PM
  Amateur Radio Operator
Amateur Radio
Join Date: May 2015
Location: Hammond, IN
Posts: 1,568

About $1.85 as scrap metal...
N4GIX - Ham / WQWU626 - GMRS
VV-898, TK-840(N), 2xTYT-7800, 2xUV5R v2+, HP1, BCD436HP, TMV7A, Ritron RRX-450 Repeater, MD-380, XPR7550, 2xCS800, Bridgecom BCR-40U Repeater, Elecraft KX3 + PX3
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Old 04-27-2017, 2:11 PM
mmckenna's Avatar
Join Date: Jul 2005
Location: WTVLCA01DS0
Posts: 8,638

If it was me (and it was at one time), I'd cut the steel frame into sections. Save the straight parts and recycle the corners. Recycle the springs. Maybe save the center section.

But, then I have a garage, welder, band saw, as well as an understanding wife.

As for antennas, might be able to fabricate a stand/mount to go on your balcony to hold an antenna.
The center section could be used as a ground plane or even as a corner reflector.

So, we can gather you are done having kids? One has been enough for me.
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Old 04-27-2017, 4:23 PM
toastycookies's Avatar
Join Date: May 2010
Location: the far east
Posts: 722

Originally Posted by Delivers1234 View Post

any thoughts besides a toddler bed.
You could partake in The Official NY7N Bedspring Challenge.

Summary: You, as a licensed amateur radio operator in the United States, attempt to make two-way contact with a station located in Australia (VK) or New Zealand (ZL) using no more than 5W, on 10m, at local night, using a bedspring for an antenna.
Dates: Between the time this thread is posted to /r/amateurradio and 0000z January 1, 2020.
Times: QSOs for credit must take place between sunset and sunrise at the US operatorís QTH.
Bands: 10m only. No exceptions.
Mode: Any. SSB, CW, RTTY, PSK, JT65, whatever. If you can have a two-way QSO with it, itís valid.
Power: 5W maximum. No exceptions. This is a QRP challenge.
Eligible operators: Any amateur radio operator in the lower 48 United States (sorry Alaska and Hawaii, weíre using DX entities for this one - Hawaii is too much like cheating anyway). Canada, sorry. Iím not even going to try to ship beer across the border.
The rest of the rules that donít fit neatly in bullet points with headers:
The DX station is allowed to use any power level (to the maximum legal limit at their QTH) and any antenna. All transmitters and receivers on the DX side must be located within that DX entity, and all transmitters and receivers on the US side must be located within the continental United States. No internet linking (i.e., Echolink, IRLP, etc.) of any kind may be used to make the contact. No satellite QSOs will be permitted. This is an air-to-air, ionospheric bounce kinda deal.
For US operators, you must use a bedspring for an antenna. The bedspring may be located anywhere you like, but it has to remain in the shape of a bedspring. You canít unwind it and make a yagi or a quad or anything else out of it - it has to be recognizable as a bedspring. You may remove the cover/insulation/foam as you see fit. You want to phase two bedsprings together? Go for it. You want to use a 2nd bedspring as a reflector? Fine. You want to mount a bedspring at the top of your tower for a year while you work on this? Want to dangle it from a tree? Haul it up on a hot air balloon? Take it to the top of Pikes Peak? More power to you. Youíre obviously willing to put a lot more work into this than a $5 beer is worth, so have at it. Photographic proof of your setup (see below) must be provided for prize verification.
The use of antenna tuners is allowed. I know most of you arenít running tube rigs here. Iím not sadistic and I donít want to break your radio. The tuner can be located wherever you like - in the radio, at the base of the bedspring, somewhere in between, wherever.
You may feed the bedspring from the tuner using whatever feedline you see fit. Coax, twinlead, a coathanger, a single conductor of stranded copper, your tongue, I donít care. The bedspring must be at the end of the feedline - you canít use it as a loading coil for a vertical or any other clever tricks like that.
The use of scheduling is permitted - if you know someone in VK/ZL whoís willing to try this at a given time every night, more power to you.
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Old 04-27-2017, 6:41 PM
Coyote-Frostbyte's Avatar
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Join Date: Feb 2016
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Me think-ist Toasty is into the cooking Sherry, but, Hey, I love the Verve!
I ran a computer model on those bed springs-- they should resonate at 20.67MHz, a tad low for 10 metre's, so add a capacitor or two in series and try your luck, Cowboy..... try your luck....
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Old 04-27-2017, 7:09 PM
  Amateur Radio Operator
Amateur Radio
Join Date: Feb 2015
Location: where they make the cheese
Posts: 203

over on there is a developing contest involving working DX on bedsprings
here it is
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