I have no need for a marine aerial, but I wouldn't miss one of your videos. Please keep them coming, they're always a favorite, no matter what you're waffling with.
Excellent video. I'm going to make two--One for a neighbor friend and the other for myself. I have a box full of Marine Radios. Living in a remote part of Vermont with no cell signal, we both have disabilities and live alone, about a mile from each other. So the radios will be an emergency backup if there is trouble. Thank you for making the video.
The Marine band shouldn't really be used for general chitchat but as you say you live in a remote part and only a few miles apart then using this 1/4 wave on "low power" on an agreed channel you are very unlikely to be interfering with anybody,
Nice video :) I like that marine band radio at the beginning :) I made a groundplane using aluminum arrowshafts after seeing a video. It works really good on the CB, VHF Air and Marine band, as well as picking up the local Sheriff's office, Fire/Rescue VHF High and Low band comms around here in Amelia, Virginia (USA) Grid Square - FM17ai Took it down with me to the Outer Banks in North Carolina, last summer and I was picking up the boaters and the aviation band like crazy. I had it mounted to a PVC pipe and that was attached to one of those long surplus military tent poles that was held in place by a tripod. 73s de WB4UR, name here is Sean :)
Good presentation, but why not use a straight through pl259 instead of the socket chassis mount, saves having to solder cable onto bottom and then have to go to the bother of trying to waterproof the open end of the cable.. Just screw pl259 onto cable and screw to bottom end of straight through pl259.
Nice one sir.people please let him build how he wants to he don't want people saying do it this way or that way .iv used Epoxy the same way even when I solder the PL259 the Epoxy fills up the PL259 RG 213 plug fills it seals it and it will never move or let water in the Epoxy drys like stone if left for about three days I do use heat shrink just to look neat and tidy.this man even unpicks braid like I do I use a long pin nail with a filed point bit like the wire he used.any way nice mood my friend. I'm just making a discone Antenna part way threw it on my Lathe that's the main part of the discone .well done sir.ps I use Epoxy all the time the one under £3 on eBay or Amazon
Yer I do like it my friend.i put nice mood LOL not shoe why put that I know I was so tied.i will look at some of your other videos. I ment to write nice Aerial don't know ware mood came from.any way nice build
I have never seen that epoxy trick before, I know about giving a bit of heat to kick it off faster. Would you mind explaining a bit more? Love your videos.
Nice presentation. It is a fact that it is not allowed to have a land based marine radio station. Only the coastguard is allowed to do so. I like the guy.
Not true!,their is no reason not to have a home set up to listen to marine traffic / weather forecasts / safety info / yacht club activates admin etc repair shops / marinaras / lockgates geppers / ,the list go`s on and on,you would be in brech of of offcom licence if you purported to be a vessel while being land based that is a differant mater !
***** You need a receiver to listen to marine traffic not a transceiver. Anyway I am an electrical engineer with a workshop for marine radios. My workshop is land based. We try to get a test channel for marine radios. I have a private arrangement with the coast guard. They answer my test calls when I have repaired a radio and make a performance test. Marine radio is not a land based service and by law you are not allowed to have a Marine station on land.
My reply said " listen to" , I too am a qualified radio engineer ,the aerial being reciprocal is thefor equally sutable for rx/tx as I`m sure you are aware,not wishing to splithairs but marinas are landbased and I can site many others, also as for your "private arrangment" for test calls is something a true pro would have no need for !,the coast guard are NOT qualified engineers most would be unable to give a meaningful report on deviation/freq-parameters etc, you only have to listen to their response to "this is ****** radio check please" ........enough said !
***** Our coastguard station is very competent and helpful. They support me in repairing radios. It is the way how you communicate with other people, they help me to get new customers. It can be very handy for a repairing engineer to get a good performance report if the radio is finally fitted in the yacht or boat. It will test the antenna, power supply, mike and fuse. For a customer it is important to see the radio works properly in his boat. Anyway I like your antenna design for a workshop. It is a good design.
There is no law stating that you can’t have a marine radio transceiver just to monitor with at home or land based or car mobile. Now if you transmit from your car or home that’s a different story. That’s a big no no. Just my two cents worth. Awesome build on the antenna by the way.
Thanks for the response. I have shares in Araldite too :D, But I was very interested in why you do that trick with the heat gun and then cool it in water to cure. Apart from making it glass clear does your trick do anything special to the epoxy? Thanks again
Hi There. Yep like the design and I will make one. The only thing I have found with my own aerials is Araldite long terms absorbs water and the swr goes bad. If you check with the manufacturer or read the instructions it says not suitable for constant water exposure. I use a two part Glass fibre based car epoxy instead. So just check label on epoxy or speak to Ciba Geigi or any other Expoxy manufactureres otherwise months later when aerial is up in air on roof its a pain to get down again.
Thanks for info, I can only speek of my own experience with Araldite used for many years on boat aerials and 2 mts/70cems pluss mobile on car again for many years and found nothing better , checks were made for impedance L/C swr as to delectrick compatabillity useing Autec Research RF Analyer with great results ! can I advice that may be down to the prior heating as vid makes the surface like "glass" I am positive this is innert and therefor impervious to water. not wishing to labour the point, car epoxy is still two part resin with a bulking agent such as talc ! a good test as to wether water is absorbed or not, is to put some in the microwave ... temperature befor and after etc
Hi, I need to replace the antenna on my sailboat. Would this design work fixed to the top of my mast? Would it be able to transmit as well as receive? Thanks
26".7"= 1/4 wave 66".8" = 5/8 wave etc therefor 106".8" for a full wave but why you would want a full wave beats me ? if you were using a vertical aganst ground half wave would be is 63".4"
Great idea but looking at it you should flip the so239 over and solder the driven element on that stem so you can use the end you have to connect the cable. Thanks for sharing
My only problem was how to connect the coaxial cable to the antenna. The copper braid attached to a lug is quite clear and it fits on one of the nut andd boltsI am not sure hoew we fit the the cetre coil of the coaxiak cable to the Chassis socket/plug. This is not shown in the Video. Thanks for contacting me.
the center conductor is solded to the center conection , (on the socket)it is shone in vid ,connection is made when you plug in the vertical element in to this . in other words the grownplanes go to the brade and the center go`s to the upright rod it is that simple !
I have no need for a marine aerial, but I wouldn't miss one of your videos. Please keep them coming, they're always a favorite, no matter what you're waffling with.
Excellent video. I'm going to make two--One for a neighbor friend and the other for myself. I have a box full of Marine Radios. Living in a remote part of Vermont with no cell signal, we both have disabilities and live alone, about a mile from each other. So the radios will be an emergency backup if there is trouble. Thank you for making the video.
The Marine band shouldn't really be used for general chitchat but as you say you live in a remote part and only a few miles apart then using this 1/4 wave on "low power" on an agreed channel you are very unlikely to be interfering with anybody,
Nice video :)
I like that marine band radio at the beginning :)
I made a groundplane using aluminum arrowshafts after seeing a video. It works really good on the CB, VHF Air and Marine band, as well as picking up the local Sheriff's office, Fire/Rescue VHF High and Low band comms around here in Amelia, Virginia (USA) Grid Square - FM17ai Took it down with me to the Outer Banks in North Carolina, last summer and I was picking up the boaters and the aviation band like crazy. I had it mounted to a PVC pipe and that was attached to one of those long surplus military tent poles that was held in place by a tripod.
73s de WB4UR, name here is Sean :)
Nice job how much gain does it make
Good presentation, but why not use a straight through pl259 instead of the socket chassis mount, saves having to solder cable onto bottom and then have to go to the bother of trying to waterproof the open end of the cable..
Just screw pl259 onto cable and screw to bottom end of straight through pl259.
I really like your Design I have been making mine backwards I like the idea you have supporting center aerial with the PL 259 THANKS !!!
Nice one sir.people please let him build how he wants to he don't want people saying do it this way or that way .iv used Epoxy the same way even when I solder the PL259 the Epoxy fills up the PL259 RG 213 plug fills it seals it and it will never move or let water in the Epoxy drys like stone if left for about three days I do use heat shrink just to look neat and tidy.this man even unpicks braid like I do I use a long pin nail with a filed point bit like the wire he used.any way nice mood my friend. I'm just making a discone Antenna part way threw it on my Lathe that's the main part of the discone .well done sir.ps I use Epoxy all the time the one under £3 on eBay or Amazon
glad you like it,cheers
Yer I do like it my friend.i put nice mood LOL not shoe why put that I know I was so tied.i will look at some of your other videos. I ment to write nice Aerial don't know ware mood came from.any way nice build
I think you may like this old video czcams.com/video/vf1a9fs878Y/video.html
Thanks for the video, what kind of SWR have you had with this? Great effort please keep them coming.
Excellent antenna. I would suggest using a So-239 female to female panel mount. So that you can attach the Coax using a PL-259
Good video. I used one of those tooth whitening syringes to suck up the araldite then gently squirted it into the plug
Good idea, and video, yes arodite is very useful
I have never seen that epoxy trick before, I know about giving a bit of heat to kick it off faster. Would you mind explaining a bit more? Love your videos.
Cool! Nice to see your radio stuff. Excellent video.
Your shack is a model of tidiness compared to my workshop!
Nice presentation. It is a fact that it is not allowed to have a land based marine radio station. Only the coastguard is allowed to do so. I like the guy.
Not true!,their is no reason not to have a home set up to listen to marine traffic / weather forecasts / safety info / yacht club activates admin etc repair shops / marinaras / lockgates geppers / ,the list go`s on and on,you would be in brech of of offcom licence if you purported to be a vessel while being land based that is a differant mater !
***** You need a receiver to listen to marine traffic not a transceiver.
Anyway I am an electrical engineer with a workshop for marine radios. My workshop is land based. We try to get a test channel for marine radios. I have a private arrangement with the coast guard. They answer my test calls when I have repaired a radio and make a performance test. Marine radio is not a land based service and by law you are not allowed to have a Marine station on land.
My reply said " listen to" , I too am a qualified radio engineer ,the aerial being reciprocal is thefor equally sutable for rx/tx as I`m sure you are aware,not wishing to splithairs but marinas are landbased and I can site many others, also as for your "private arrangment" for test calls is something a true pro would have no need for !,the coast guard are NOT qualified engineers most would be unable to give a meaningful report on deviation/freq-parameters etc, you only have to listen to their response to "this is ****** radio check please" ........enough said !
***** Our coastguard station is very competent and helpful. They support me in repairing radios. It is the way how you communicate with other people, they help me to get new customers.
It can be very handy for a repairing engineer to get a good performance report if the radio is finally fitted in the yacht or boat. It will test the antenna, power supply, mike and fuse. For a customer it is important to see the radio works properly in his boat. Anyway I like your antenna design for a workshop. It is a good design.
There is no law stating that you can’t have a marine radio transceiver just to monitor with at home or land based or car mobile. Now if you transmit from your car or home that’s a different story. That’s a big no no. Just my two cents worth. Awesome build on the antenna by the way.
Lovely. Nicely done. Love the way you folks talk 'across the pond'. Such a nice vocabularly. Sincerely.
--HC
GREAT VIDEO !
Thanks for the response. I have shares in Araldite too :D, But I was very interested in why you do that trick with the heat gun and then cool it in water to cure. Apart from making it glass clear does your trick do anything special to the epoxy? Thanks again
Hi There. Yep like the design and I will make one. The only thing I have found with my own aerials is Araldite long terms absorbs water and the swr goes bad. If you check with the manufacturer or read the instructions it says not suitable for constant water exposure. I use a two part Glass fibre based car epoxy instead. So just check label on epoxy or speak to Ciba Geigi or any other Expoxy manufactureres otherwise months later when aerial is up in air on roof its a pain to get down again.
Thanks for info, I can only speek of my own experience with Araldite used for many years on boat aerials and 2 mts/70cems pluss mobile on car again for many years and found nothing better , checks were made for impedance L/C swr as to delectrick compatabillity useing Autec Research RF Analyer with great results ! can I advice that may be down to the prior heating as vid makes the surface like "glass" I am positive this is innert and therefor impervious to water. not wishing to labour the point, car epoxy is still two part resin with a bulking agent such as talc ! a good test as to wether water is absorbed or not, is to put some in the microwave ... temperature befor and after etc
poroldchap im new to your vids but the are great!
great aerial I would think that flipping the connector upside down would give you the connection needed with the driver soldered into the pin that way
I think you will find it would make for a "week" arrangement not something I would recommend
You are smart! I Like what you have done with the connector to mount the driver rod! Is there a way i can mount a 12mm aluminum tube instead of a rod?
No sorry
Hi, I need to replace the antenna on my sailboat. Would this design work fixed to the top of my mast? Would it be able to transmit as well as receive? Thanks
this will work on a sailboat, i used it on my pontoon boat and wrapped the connector with tape to water proof or can use silicone.
👍👍👍👍👍👍👍👍💎
What was the other plug for? Was there a part 2?
you can use the back of the cap to peirce the tubes , do you have any idea how to make a full wave antenna for 103 MHZ ?
26".7"= 1/4 wave 66".8" = 5/8 wave etc therefor 106".8" for a full
wave but why you would want a full wave beats me ? if you were using a
vertical aganst ground half wave would be is 63".4"
Araldite is fantastic stuff. Better than all it's competitors.
Araldite as explained has excellent RF qualities, I use it on all coax sealing, found nothing better
Great idea but looking at it you should flip the so239 over and solder the driven element on that stem so you can use the end you have to connect the cable. Thanks for sharing
That has been said by a few but in my opinion would make a week aerial and more susceptible to water ingress
Thank you for sharing Sir! 73 from USA
Oh now that I seen then ending I must add, one beer a day is unacceptable Sir...
What is the name of the resin you used. Cant make out what you said!
Thanks very much
👍👍👍👍👍👏👏👏
super
My only problem was how to connect the coaxial cable to the antenna. The copper braid attached to a lug is quite clear and it fits on one of the nut andd boltsI am not sure hoew we fit the the cetre coil of the coaxiak cable to the Chassis socket/plug. This is not shown in the Video. Thanks for contacting me.
the center conductor is solded to the center conection , (on the socket)it is shone in vid ,connection is made when you plug in the vertical element in to this . in other words the grownplanes go to the brade and the center go`s to the upright rod it is that simple !
o vidio esta bom, mas nao diz , as medidas das varetas. se alguem poder colocar ai as medidas agradecia obrigado.
for marine band 52 cm for any other band a 1/4 wave
i would use a reducer when using smaller coax cheers kg6mn
Arrodite?-- epoxy?
Araldite is a trade name and is an epoxy glue
Understood but not if you use heat shrink or seal it like you did
Thanks