Flowerpot Antennas

Have you heard of a flowerpot antenna? I hadn’t until recently, and I enjoy gardening also. But this antenna has nothing to do with gardening apart from why it was named flowerpot and it will probably end up either on your roof or garden.

A good friend of mine put me onto it as I was having trouble on 6m. A small group of us think 6m is under-utilised so we all get on their and chat for a while either on AM or SSB.

My antenna worked reasonably well, but they suggested I build my own using the flowerpot method. Given I’m always up for learning something new, I couldn’t resist.

The best but about the antenna is it is extremely cheap to make, easy to put together and the antenna works really well.

Flowerpot Antenna by VK2ZOI https://vk2zoi.com/articles/half-wave-flower-pot/ is a great site and has all the measurements.

You can make a flowerpot antenna for either 6m, 2m or 70cm. You can hang it in a tree if you wish, in a pvc pipe like I did, or using a pole or something else.

There were only two parts I needed, everything else I already had. But if I had bought everything, it would have cost me I total about $15. Not bad for a great antenna and one you can say you built yourself.

All I needed to buy was the pvc pole, which is optional and a slightly wider pipe to make the coil on I already had the RG58 coax, and it even had a pl259 plug on it!

My flowerpot antenna

Items I purchased included:
PVC Pipe. Make sure you give it a shake in the store before buying. If it is too flexible then it may bend and snap in the wind. But you don’t want it to heavy either.

Coupling Plumber Part to make my 50mm coil on:
https://www.bunnings.com.au/holman-50mm-pvc-dwv-straight-coupling_p4756318

If you want more information on how to make it and how I put it together, have a look at my video.

Hope you enjoyed the read. If you have any questions please let me know.


Other reads

If you enjoyed this post, you may enjoy some of my other posts:

  • OpenHamClock
    OpenHamClock is an open-source amateur radio dashboard designed as a modern successor to the original HamClock used by radio amateurs worldwide. It provides a real-time visual display of…
  • Radtel P8 PoC radio
    The Radtel P8 PoC radio is a Push-to-Talk over Cellular (PoC) device that looks like a traditional walkie-talkie but communicates using 4G/LTE mobile networks instead of UHF/VHF radio…
  • What is an Antenna Coupler
    An antenna coupler (also called an antenna tuner or matching network) is a device used in radio systems to ensure impedance matching between a transmitter and an antenna.…
  • Antennas
    Amateur radio operators use many different antenna types, each designed for specific bands, space limits, and operating goals. Here’s a clear overview of the most common ones and…
  • Dipole Antenna for Portable Use – Make your own!
    A dipole antenna is a basic radio antenna made of two conductive elements fed at the center. It is typically a half-wavelength long and is widely used as…
  • Interference
    Interference in Amateur Radio refers to unwanted signals that disrupt radio communication. This interference can reduce signal clarity, make contacts difficult, or completely block communication between amateur radio…
  • 6m and TV Channel 0
    Prior to 1989, it was illegal to operate between 50 MHz and 52 MHz in Australia. It was a real pain as that was where all the action…
  • Dipole Antennas Vs Long Wire Antennas
    I’ve heard a lot about dipole antennas, and I’ve heard a lot about long wire antennas also. I would say I’ve seen more dipoles than long wire antennas.…
  • Repeater-START
    Repeater-START is a multi-platform app designed for ham radio and radio-operator enthusiasts who need fast access to repeater information. The app provides a detailed repeater map as well…
  • The 6-Meter Amateur Radio Band
    What Is the 6m Band? The 6-meter band, spanning roughly 50–54 MHz, is a section of the VHF spectrum assigned to amateur radio operators. Its wavelength is six…
  • Anytone AT-778UV
    Overview The Anytone AT-778UV is a dual-band VHF/UHF mobile transceiver designed for amateur radio operators. It operates on the 136–174 MHz (VHF) and 400–490 MHz (UHF) bands, offering…
  • 160 Meters Band
    160 meters band is known as the “Gentlemen’s band”. It is right next to the AM commercial band, known as medium wave. The 160-meter band is the radio…
  • What does this Antenna do?
    Have you ever had an antenna and forgotten what it is for? Maybe you have been given one and wasn’t told exactly what it was used for. I…
  • Olivia Digital Mode MFSK
    Yes, this popular girl name is actually an Amateur Radio term. Christian, DK8EW, put me onto Olivia after we chatted on VARA HF. I had heard about Olivia…
  • Yaesu FT-620
    The Yaesu FT-620 (and its updated version, the FT-620B) is a vintage amateur radio transceiver designed specifically for the 6-meter band (50–54 MHz). Produced in the 1970s, it offers support for AM, CW, and…
  • FreeDV
    I came across something different, FreeDV. The name FreeDV insinuates it is free, but is it? What is it? And what does it do? They say it will…
  • Anytone 778UV Key Assignment
    Key Assignment For some reason, not all the key assignment options are in the manual and after a bit of searching, I found no complete list.  Hopefully this…
  • Kenwood – did you know this?
    Everyone that has been into radio for a while will know the brand Kenwood.  And most know Kenwood isn’t only into Amateur radio, they are bigger than that,…
  • VK3AHR Ron
    Today (20/06/25) I head Ron, VK3AHR, on the 7.100 40-meter net. I understand he ran this net for over 7 years, but hasn’t been able to for the…
  • The History Of Yaesu
    As licensed Amateur Radio operators, we have all heard about Yaesu. We have all seen a Yaesu radio and most of us have used and even own one.…
  • Parks & Peaks App
    I’ve been using the Parks and Peaks app on iphone and ipad for a little while now and quite enjoyed it.  There don’t seem to be many iphone…
  • DMR Explained
    With digital radio changing so quickly, below is a bit of an update in regards to DMR radio networks. DMR stands for Digital Mobile Radio and is an…
  • Baofeng K5 Plus Radio
    I managed to get one of these radios and was rather impressed with it and what it came with. Have a look what my box had in it.…
  • Zastone D9000 Number Lock
    I purchased this radio from a friend, and it worked well. He hadn’t really used it, so I did a factory reset. This was a bit of a…
  • HamClock
    HamClock has always fascinated me, as it seems such an amazing program specifically set up for Amateur Radio. I have seen countless videos on it but the draw…
  • Baofeng Radios
    You could say every amateur radio operator knows about the Baofeng if they have been around long enough. Most have held one of their radios and lots have…
  • Yaesu 857D
    A great radio that does all bands up to 70cm. Using all modes also you can talk on SSB on VHF and UHF. If you haven’t done SSB…
  • Hiroyasu IC-980 Pro
    I recently got my hands on the Hiroyasu IC-980 Pro dual band base radio. This is pronounced as “Hiro-Yasu”. When I say, got my hands on it, the…
  • Flowerpot Antennas
    Have you heard of a flowerpot antenna? I hadn’t until recently, and I enjoy gardening also. But this antenna has nothing to do with gardening apart from why…
  • Daiwa CN-460M Meter
    The Daiwa CN-460M is a small cross-needle meter displays both forward and reflected power for 2m and 70cm. It measures in ranges of 15/150 watts forward and 5/50 watts reflected.…
  • Yaesu FT-225R
    The 2m band has always been an interesting one for me. It used to be swamped with pager interference, but it actually is a great band. Inversion allows…
  • RH1 Radio Cup Holder
    Why does a radio need a cup holder? I agree it’s a bit odd. But this isn’t a product that involves a cup. Rather it uses a cup…

HF Mobile Antenna CBL-561

CBL-561 Review

The new CBL-561 antenna is strong and light that is fit for mobile work, camping or remote radio use. I plan to use this on our next outback trip!

This antenna supports a frequency range of 25-30MHz, covering both 10-meter and 11-meter bands.

With a SWR of ≤1.3:1 and a high power capacity of up to 500W, this makes an ideal mobile or camping antenna.

This antenna is compatible with the following radios:

Radioddity QT40

Radioddity QT60

Radioddity QT80

Radioddity CS-47

Radioddity CB-27 Pro

Radioddity CB-500

Radioddity CB-900 Pro

and all other brand’s that transmit in the range of 25-30MHz.

I use the QT80 radio with this antenna, so I highly recommend you seeing that review.

Tuning the antenna

I found tuning the antenna was simple. Just a small Allen Key allowed for adjustment between bands, however some bands were close enough as you can see in my video.

If you mark the antenna to the correct lengths, then it becomes easier still.

The antenna is built from aluminium alloy, so it shouldn’t rust. It is strong and windproof plus I’ve tested it mobile with the M916 base (extra) with great success.

The coil on the antenna is strong and doesn’t rattle at all.

The antenna has a standard PL259 on the bottom of the antenna so it fits my antenna connector that was already on my 4×4 which will save me wiring it all in.

More information

More information is available on my YouTube channel here.

There are several mounting options to the car, this is the base we use, th M916 Heavy Duty Magnetic Antenna:

Purchasing Tips

If you go via this link, you will get a discount (then search for CBL-561):
https://radioddity.refr.cc/bensangster

Radio is here https://www.radioddity.com/products/radioddity-cbl-561

Other reads you may also enjoy:

  • My Radio Diddity GD-77
    Starting in digital can be a little overwhelming to start with, no matter how many years you have had your licence.…
  • Updating GD-77 Firmware
    Updating the firmware on the GD-77 can be daunting, as you can easily “brick” your radio. So be extremely careful. Make sure you understand why you…
  • Chirp
    CHIRP is a free, open-source tool for programming your amateur radio. It supports a large number of manufacturers and models, as well as provides a way…
  • Power without Power
    In 2019 my family and I went on a five week trip through outback Australia to some of the remotest parts. We had no access to…
  • Welcome to the site
    Hi there from Down Under, Melbourne Australia. Thank you for visiting my radio web site. Below is what items by category is available on this web…
  • Using an Android TV Box for Ham Radio
    If you want to get onto Digital Radio for less (way less) than $100, then you may be interested in this. I have Apple equipment, and…
  • Orion Push to Talk
    Orion is an app that isn’t really known in my world, perhaps because it isn’t available on all platforms, or because it does transmit your exact…
  • Mini Keyboard Options
    I bought this wireless keyboard/mouse which was very cheap. It does not come with batteries, but come with a USB dongle. It has a fantastic range since it is 2.4GHz RF. The back also has good grip which apparently isn’t common on all models. You can select what colour you want the plastic to be also.…
  • WizNet DMR
    The WizNet DMR app is still in beta testing, and at the time of writing this, you have to not only have a currently have a…
  • The Radio Box
    How do you stop a hand held radio from falling and being damaged? Do you sometimes put the radio down on a bench or desk between…
  • Amateur Radio Nets
    A list of Radio nets we have gathered from web pages around the world, as well as friends etc.…
  • USB Device Error PL2303HXA
    I went into the device manager and found the error, my cable no longer worked. This same issue happened to a USB Card reader also.…
  • ProScan and ProScan Client
    I recently started using ProScan after years of using FreeScan. I have always enjoyed using FreeScan as it is easy to setup, I can download outputs from the software, and the main reason “it works”. However ProScan seems to be more graphical and has different features also.…
  • ProScan and ProScan Client Update
    I recently started using ProScan after years of using FreeScan. I have always enjoyed using FreeScan as it is easy to setup, I can download outputs from the software, and the main reason “it works”. However ProScan seems to be more graphical and has different features also.…
  • The History of Ham Radio
    A good friend of mine, Mike VK5ZC, put the information below together and asked me to put it on my web site. He has spent a lot of time putting it together with pictures and videos, so I encourage you to have a good read.…
  • Basic Antenna Fundamentals
    A good friend of mine, Mike VK5ZC, put the information below together and asked me to put it on my web site. He has spent a lot of time putting it together with pictures and videos, so I encourage you to have a good read.…
  • Upgrade to OpenGD77
    This page is just a help to friends I have spoke to who are interested in upgrading the Radioditty GD-77 to the OpenGD77 software. This is not my work, however I really do appreciate Roger and his team have done to put this together. I claim no responsibility if it breaks your radio, however I have not hear this happen now in some time. I am not an expert at all with OpenGD77, I have just put this together to help people who have asked me how to do it.…
  • Australian DMR Repeaters
    There are several DMR networks around the world, and more and more start all the time. The Australian DMR network currently covers the entire country and…

Baofeng GT-5R Pro

The first thing I noticed after receiving the radio was the size of the radio. It is small yet not to small that it is hard to use. It fits comfortably in your hand.

Not only is it physically small, the price is amazingly small also. How I would have loved to have this radio when I started in the hobby 35 years ago!

Saying that, I see this as a great entry level budget radio. Or a small radio for camping or in the car rather than putting an expensive radio in.

The GT-5R PRO is an enhanced version of the classic GT-5R, capable of receiving a wider range of frequency bands including UHF, VHF, FM, NOAA, Airband, 1.25M, and 1M.

I was easily able to program the radio via the keypad putting in my local repeaters with the required offset and tone squelch.
But it was even easier to program it via Chirp Next and I have a video on how to do that.

It is a 5 watt radio complete with VOX if you want to go hands free.

The GT-5R PRO is fully compatible with the UV-5R’s accessories. Such as the car charger, speaker mic, ear piece, antennas plus more.

The GT-5R Pro comes in a standard single-unit version as well as a kit version that includes a long antenna and programming cable. I got the kit version, so be shore when purchasing you know if you want the kit or the single unit version.

Contents
• Radio
• Fast desktop charger
• Antenna
• Long antenna
• Li-lon battery pack
• Wall adapter
• Belt clip

It supports UHF VHF dual band transmission and a wide range of reception frequency bands, including 136-174MHz, 400-520MHz, 76-108MHz, 108-136MHz, 200-260MHz, 350-390MHz, and NOAA weather channels.

Receiver Frequency:
FM 76-108 MHz;
AM 108-136 MHz;
VHF 136-174 MHz, 220-260 MHz;
UHF 350-390 MHz, 400-520 MHz

Transmission Frequency (US version): 144-148 & 420-450 MHz
Transmission Frequency (EU version): 144-146 & 430-440 MHz

It has 128 memory channels and I love how when you program them from the radio, you can see what has already been used.

  • 50 CTCSS tones and 210 DCS codes
  • SOS Emergency function
  • FM radio receiver (87.5-108MHz)
  • Channel or frequency mode selection
  • TOT (Time out timer)
  • Reverse function
  • CTCSS and DCS codes research
  • Busy Channel Lockout function (BCL)
  • Frequency step: 2.5/5/6.25/10/12.5/25KHZ
  • Repeater shift
  • VOICE: vocal indication of the function selected
  • Li-lon battery pack
  • VHF and UHF bands and channel name displayed
  • Squelch adjustable in 9 levels
  • 1750Hz tone for repeaters
  • LCD display with backlight adjustable in 3 colours
  • VOX, Scan, Dual Watch functions
  • Power Save
  • DTMF function
  • Alarm function
  • Setting and storing of channel names
  • High/low power selection
  • Frequency offset (adjustable): 0-69.990MHz
  • 2pin Kenwood accessory jack
  • Keypad lock
  • Battery allows direct charging from the DC port

Testing

I quickly made some contacts on both 2m and 70cm and both said my audio was great. I swapped antennas halfway though a conversation and found the small antenna better but that was just for one repeater. I plan on doing more tests in the coming weeks.

Programming Tip

Did you know you can program these radios via Chirp? Here is a great tip you may like with chirp.

Summary

When I received the radio, I was stunned at the price and thought I can’t really go wrong here. I didn’t check the hypnotics but everything else I checked worked well.

If you go via this link, you will get a discount:
https://radioddity.refr.cc/bensangster otherwise you can see it here: https://www.radioddity.com/products/baofeng-gt-5r-pro


If you enjoyed this read, here are some other ones you may be interested in.