I have played with the T dipole connector but struggled to get a safe low SWR. Taking some good advice ive now ordered a 1.1 balun and will be trying that when it arrives. However ive got a few things coming up so the next video might be us on the 305 having a fun on a sunday with the dipole coming later.
You need to run the coax out horizontally for about 9ft before turning down, otherwise it will couple with the aerial. You could wind a coax choke (or 2, one at the aerial end, the other at the rig end) and kill any common mode IMO try the T2LT hanging from the ridge.
hey fred i got a anteen project for you try using two ham whips to make a j pole like this or what ever nt1k.com/open-stub-j-pole-project-completed-many-times/ for your cb
Back in the day, that’s what I did with my set up but mag set out my bedroom . It was crude but it worked. My first rig was a AM cobra 40 channel. That was when I lived down in cotton mill estate in the 80’s. So many people on back then. Keep it real and I’ll shout you when I come down after Christmas. Keep it real. 👍 .
If you support the upper whip element you could simply hang a wire for the lower section. For that matter the whole thing could be wire. A balun can be made using a few turns of coax coiled up at the feedpoint. Tape or cable tie the turns so it stays as a coil.
Is one end of that T adapter wired to the ground? If not then that set up wouldn't have a ground or radial. My understanding is that a dipole has one leg connected to ground/shield and the other to the center core. I'm thinking of trying something similar. I'm going to try 2x base loaded 27Mhz telescopic antennas. I'll have one BNC socket center pin wired to ground/shield and another BNC socket center wired to the core. I'm putting them on opposite sides of a small plastic box. I'm also going to try inverted V with same antennas by putting BNC sockets on adjacent sides of a small plastic box to give 90 degree angle for the V. I tried one telescopic on it's own but the SWR was in the red across the channels. I tried adjusting the length but I got to a point where the SWR started to go back up again. In regards to the biscuit tin & tin foil video I had similar setup in the 80s. I suppose if you hadn't been able to find a biscuit tin you could have used an upside down baking tray.
I used to run a stock Navaho AM/SSB 40 channel base station hooked up to a grounded and tuned 5' truckers whip mounted on the roof of my house. I was able to be heard from quite a distance locally and when skip was in talked with people 1000's of miles away. Lots of fun and that setup probably cost me less than $100 at the time.
Awesome video thanks my problem is that I'm on the first floor of a block of flats and I'm using a 4ft springer antenna on a magmount base on a baking tray but the swr is quite high. I'm transmitting OK but the other local breakers can't here me very well and they aren't that far from me could it be the antenna. I no I wunt get very far but I should be doing a little bit better than I'm doing now
I have been using an inverted V dipole for a while now with great success. The top of the V is elevated with fishing line on a tree branch, some 10 mtrs of the ground and the SWR is right down to 1.2 to 1.0, not bad at all. When the band is 'open' I have worked distances up to 2,000 km! Radio is a Uniden Bearcat 980SSB with an RM KL203 P power amp at the end. Shame that you can't have your dipole outside, it would make a heck of a lot of difference! 73's from 'down under'
This channel is interesting. I found it because I was looking for reviews and tests with the nobsound tube amp and found video from years ago. Gonna subscribe now and watch ur vids.
Hi Fred, yes i am looking to get back into CB / Ham after many many years away from it, back in the 1981's pearce -simpson tiger 40a on AM. My friend thought long and hard about his "handle" cb name and came up with "reargunner", but we swapped it to gunnerrear. he wasnt happy and 40 years on some still call him gunnerrear, lmfao.
Great video. The coax should come off the dipole as perpendicular as possible whether it is vertical or horizontal. That will reduce the SWR. The antenna worked well. Very good videos Fred. Always a pleasure to watch
Greetings from Indiana here in the US! Really enjoying your channel Fred. In my youth my older brother and I set up a Radio Shack Realistic CB feeding to a similar antenna setup in our attic. At that time the band was quite busy and your estimated range was pretty close to what we were able to get also. My buddy across the street w/a full size quarter wave on his roof had much better results.
Fred - How did you tune the whips for this dipole? I've been trying to make a similar dipole antenna using 2 - 4' (foot) Wilson Silver loads mounted on an aluminium "bracket". I can't seem to be able to get the SWR below 2:1. I want to use it horizontally mounted on a mast outside. I'm trying to reduce RFI which makes using a vertical here impossible. (noise level 7 - 9 s units on my Antron 99). I don't know where the noise is coming from; one of my neighbors I expect. All the power lines here are underground. I had a full wave rectangular loop hanging in a tree for awhile that was much quieter, but the wind and time destroyed it. Not to mention it was hard to rotate :) I'm hoping a dipole will be as quiet, and it will certainly be easier to rotate. Cheers from North Carolina USA.
Hi. I had to cut off about 2" from each whip to get the SWR down below 2. Noise wise its really tough setting up a homebased station with lots of QRM all around :-(
Well, I am impressed. I suspect dipoles are inherently full of potential as long as you are near the proper lengths. It goes to show that it don't take much to get out and a few rules and a few items just need to be followed. Again, I am sonhappy that there is local chatter in your area. The local radio scene here in Western NL is absolutely dead. I spend much more time now listening to shortwave. All is well here other than that Fred. All the best you and yours.
Thanks Andy. Our 305 group (started by Steve 318 driving home from work and myself) is going great. A real nice group of guys, its a total pleasure to listen too and chat. All ticking over here in the UK. Busy with life as ever but thats the way of the modern world. Our weather has been nothing but rain for the past 2 weeks. Hope the Quad bike is going ok.
Nice one Fred, it's all about having fun and experimenting... The wife has said she would like to have a go... Time to convince that upgrading to ssb unit is the way to go haha
@@CB-RADIO-UK 1.4 SWR, don't sweat it. My double bazooka in a inverted vee config is wide banded.2.2 @26.000 1.8 @ 28.510 and my base 27.380 is 1.2. Most of the bandwidth I'll never use, but it was fun finding how wide it was. Enjoy 11 meters, the band will open eventually.
dipole inverted vee work very well attached to the rafters using high voltage fencing insulators.. one in the middle and 2 each leg is all you need.... I also add a choke using the coax.. 5 times round a bit of 4 inch drain pipe... worked all over europe and states on it...
just wondring what is the ?Balun/adapter that you have the 2 whips connected too and coax comin too trying to find out for a friend as we can not seem to find it anywhere online
Hi. I ordered it from Amazon. Seems to have doubled in price but there are cheaper ones on there if you search. www.amazon.co.uk/Standing-Converter-160M-6m-Frequency1-8-50MHz-Universal/dp/B0C6XYXSN1/ref=sr_1_65_sspa?crid=1YE377BHXH764&keywords=radio+balun&qid=1705652582&sprefix=radio+balun%2Caps%2C78&sr=8-65-spons&sp_csd=d2lkZ2V0TmFtZT1zcF9hdGZfbmV4dA&psc=1
Fred thanks for the quick reply the video I saw was where you had 2 mobile whips connected to some adapter that looked like the 2 mobile whips were screwed to the ends of that and then coax connectorI think you referred to it as a t-piece or have we missed another video prior to that I think the video we saw was 4years old
I’m new to all this but I’m going to get the CRT SS 6900N and a sirio 2016 for my first set up as that radio looks like a easy unit to get to grips with, anyone with any additional advice as to what other things I will need to get started, please let me know, thanks.
fredintheshed1 what power supply would you recommend for that set up also which SWR meter and do I need a linear amplifier, just tell me all the best things you recommend, I’m not bothered about the cost as I just want the best start 😂 that’s if you don’t mind thanks.
I run two 46" dial a match antennas as a dipole horizontal at the moment with the same T connector. Works well good swr over lo mid and hi bands. Yet to try it vertical yet as I can't mount it far enough out on my tripod mast. So I am going to try it as a boomerang style antenna.
How about that Modulator on a metal box of some sort with some wires spread out for a ground plane fred? That way you can reduce height by having a horizontal ground. It worked for me when I lived at home in Luton back in the late 80s... I have to say, I've never found a better mobile aerial than the mighty Modulator. I've tried just about everything and always come back. Had some amazing contacts on mine. Great experiment...
I have a chameleon quad coupler. Currently it i set up with hamsticks for 20/15 meters. I am thinking about using 102 inch whips to replace the 15 meter sticks and to have coverage of CB and 10 Meter digital. Any advice?
Can you not have a UNUN in the loft at the end where the long wire antenna will exit via a small hole and attach to a tree at the bottom of your garden and the earth will attach to a copper pipe in the area where the UNUN is installed.
Hi Fred. I wonder if you could do a vid on interference caused by C.B. to tv , audio, and internet. I know here, when I transmit it slows down Wi Fi speed, and over 100 watts the neighbor audio. I inserted a trap, which stops the slowing of the Wi Fi, but only reduces the interference on the audio. In order of effect AM produces the most TVI, Sideband less , and even with 500 watts out FM causes zero interference.
@@CB-RADIO-UK A99 great antenna! I had no issues with it's performance. Back to TVI, mobile magnet mount whips are often the worst offenders. In my case, one neighbor who has high end analog audio system gets bugged past 100W or so AM. Not one other soul on my street or city is bothered. It's a point of interest for me and surely other subscribers may have had experience. Great vids Fred, There is always something going on with you operate radios !
Fred, Impressed by many of your videos. I'm looking at maybe getting back into using the CB since I last used one in the 80's and contemplating DXing on the SSB's, I don't have a rig just yet, but I have an old K40 Mag and Cherokee Dial A Match for mobile, what is recommended these days for mobile coms?Cheers Dave
I always recommend the CRT SS6900N radio which is about £140 from Knights CB. Its not a type approved radio though but a 10 meter radio which they reprogram for CB. It is powerful enough and overall great value for money. The K40 still stands up today as a good antenna. Modern updates would prob be something like the Sirio 4000 or 5000.
Thanks for the reply Fred, that's great advice and about as much as I wish to pay incase it's not for me, however, I quite liked the President Grant 2 that you have reviewed, we'll have to see how the budget pans out!! Kind Regards and Stay Safe... Dave
Heygreat videos - thank you - I have basically just tried this with two new Thunderpole Voyager's - looks to be the same as in this video, I'm aiming for an inverted V. How much did you end up trimming off the whips to bring SWR down?
Try your dipole with a 130 - 140 ° angle . You could try just using twin wire as the feeder then split the wire to form the diepole 2x2.6 metres ( see my zip cord antenna video and scale it down for cb frequency) . Good luck with your projects..
That T2LT antenna isn't very good. I tried one in the field and the SWR changed when i changed the position of the feeding coax line. Even when i used a good 1:1 balun. Two mobile antennes works nice. Got some DX with that. My favourite is the double bazooka coax antenna. I made one for the 11 meterband and one for the 40 meterband. Both do a good job and low noise levels.
48pluto: The double bazooka (made from Coax) is what I use indoors too....its probably one of the best for indoor use as it doesn't need a balun and its very wide-banded with low SWR all the way from low-band to the UK "muppets" band.
hi fred interesting video,not so sure about the cb whip antenna ,but sometimes outside antennas are not always possible, ,but you do the best you can,ps the yaesu desk mike looks great,just got myself a icom 50 dynamic desk microphone,with the stronger modulation seem to push more watts out,anyhoo,thanks fred,19 charie tango 022 rotterdam...
Hi Fred. Without watching the video... I did this in the early 80's... Your better off using and mobile antenna and a 9ft alu rod as the ground. They used to sell something similar called 'Watt pole'. For me nothing worked better than the 36ft wire dipole I made. When I say I made... No bought centre pieces or insulators.. It was all, just made of non radio stuff
Sounds silly but would having two mag mounts stuck to eachother so it looks like a dipole would that work. I ask because I've just set up after watching your videos , I bought a SS 6900 but I only have a mobile antenna at home, I just couldn't get the swr down , I have to mag mount bases with coax , I put them together and added the whip to one , my swr went down but I'm nervous to use it this way. 🤣
Not sure two mag bases would work. The T joiners are cheap on Ebay but you need two whips. Your going to need you mag mount base stuck to some metal structure to give yourself a ground plane and bring the SWR down.
@@CB-RADIO-UK I tried everything I could find that was metal to stick the antenna to, the swr just wouldn't drop, I tried running the Ariel by undoing the whip and moving it up and down , still no luck, but as soon as I put the two mag mounts together it went down.
@@CB-RADIO-UK when you cut the length of the wire then wrapped them on the insulators what was the final length from balun to Insulators with the return twist on each wire end
I've been looking and on eBay Knights sell the 6900n it says it can come pre programmed with 4 options if you could look on eBay what's the best program option many many thanks
@@CB-RADIO-UK When mobile all over the country years ago I used to enjoy the Gloucester net. I could get into it down the M5 from the top end of the M42. Sadly quiet after the silent key of Ken the Oxman. Although I'm not mobile anymore.
Nice video again Fred' :) it probably would have worked better if it was located outside. that's because like you said the internal noise given off by all the electrical wiring in the house. but it shows if you cant use an out-door antenna an indoor one will work.
Magmount, biscuit tin, do it. I've put my modulator whip and mag mount on a biscuit tin out of my bedroom window and I can get 20miles. Whitstable in Kent, across the water to leigh on sea in Essex. That's on ukfm.
I have played with the T dipole connector but struggled to get a safe low SWR. Taking some good advice ive now ordered a 1.1 balun and will be trying that when it arrives. However ive got a few things coming up so the next video might be us on the 305 having a fun on a sunday with the dipole coming later.
You'll need and un-un...
Yeah could go down that route along with ladder line. Going to try the balun and a RF choke first.
@@CB-RADIO-UK As you know, the co-ax route can be crucial too.
You need to run the coax out horizontally for about 9ft before turning down, otherwise it will couple with the aerial.
You could wind a coax choke (or 2, one at the aerial end, the other at the rig end) and kill any common mode
IMO try the T2LT hanging from the ridge.
hey fred i got a anteen project for you try using two ham whips to make a j pole like this or what ever nt1k.com/open-stub-j-pole-project-completed-many-times/ for your cb
I bet that antenna would work brilliant outside. I've always been a fan of dipoles
26PS001 next step Fred builds a beam 😀
Great vid fred, I love this. This how I did it in 1983! Back to memory lane...keep em coming..thanks again🔌🔋🎤
Back in the day, that’s what I did with my set up but mag set out my bedroom . It was crude but it worked. My first rig was a AM cobra 40 channel. That was when I lived down in cotton mill estate in the 80’s. So many people on back then. Keep it real and I’ll shout you when I come down after Christmas. Keep it real. 👍
.
Yep the old Cotton Mill :-)
Im really enjoying watching and learning from your experiments.
Thanks mate. hope your well.
If you support the upper whip element you could simply hang a wire for the lower section. For that matter the whole thing could be wire. A balun can be made using a few turns of coax coiled up at the feedpoint. Tape or cable tie the turns so it stays as a coil.
Is one end of that T adapter wired to the ground? If not then that set up wouldn't have a ground or radial. My understanding is that a dipole has one leg connected to ground/shield and the other to the center core. I'm thinking of trying something similar. I'm going to try 2x base loaded 27Mhz telescopic antennas. I'll have one BNC socket center pin wired to ground/shield and another BNC socket center wired to the core. I'm putting them on opposite sides of a small plastic box. I'm also going to try inverted V with same antennas by putting BNC sockets on adjacent sides of a small plastic box to give 90 degree angle for the V. I tried one telescopic on it's own but the SWR was in the red across the channels. I tried adjusting the length but I got to a point where the SWR started to go back up again.
In regards to the biscuit tin & tin foil video I had similar setup in the 80s. I suppose if you hadn't been able to find a biscuit tin you could have used an upside down baking tray.
I used to run a stock Navaho AM/SSB 40 channel base station hooked up to a grounded and tuned 5' truckers whip mounted on the roof of my house. I was able to be heard from quite a distance locally and when skip was in talked with people 1000's of miles away. Lots of fun and that setup probably cost me less than $100 at the time.
Very impressive mate! Great stuff
Thanks Lewis.
Can I ask what was used to connect the two antennas together? I love the simplicity of this idea!
Hi It was called a PL259 T connector.
I made my vertical CB dipole and added extra elements at the lower ground end sloped at 35 to 45 degrees into a ground plane. It works real good
Awesome video thanks my problem is that I'm on the first floor of a block of flats and I'm using a 4ft springer antenna on a magmount base on a baking tray but the swr is quite high. I'm transmitting OK but the other local breakers can't here me very well and they aren't that far from me could it be the antenna. I no I wunt get very far but I should be doing a little bit better than I'm doing now
I have been using an inverted V dipole for a while now with great success. The top of the V is elevated with fishing line on a tree branch, some 10 mtrs of the ground and the SWR is right down to
1.2 to 1.0, not bad at all.
When the band is 'open' I have worked distances up to 2,000 km! Radio is a Uniden Bearcat 980SSB with an RM KL203 P power amp at the end.
Shame that you can't have your dipole outside, it would make a heck of a lot of difference!
73's from 'down under'
Clicked on vid for the AT6666 very empresses with that radio
This channel is interesting. I found it because I was looking for reviews and tests with the nobsound tube amp and found video from years ago. Gonna subscribe now and watch ur vids.
Thanks. There is a wide spread of hobbies on here. Also check out Fred2 for more. ua-cam.com/channels/neZ-OD97rGektrH7SwdadQ.html
Hi Fred, yes i am looking to get back into CB / Ham after many many years away from it, back in the 1981's pearce -simpson tiger 40a on AM.
My friend thought long and hard about his "handle" cb name and came up with "reargunner", but we swapped it to gunnerrear. he wasnt happy and 40 years on some still call him gunnerrear, lmfao.
LOL thats funny :-)
Great video. The coax should come off the dipole as perpendicular as possible whether it is vertical or horizontal. That will reduce the SWR. The antenna worked well. Very good videos Fred. Always a pleasure to watch
Greetings from Indiana here in the US! Really enjoying your channel Fred. In my youth my older brother and I set up a Radio Shack Realistic CB feeding to a similar antenna setup in our attic. At that time the band was quite busy and your estimated range was pretty close to what we were able to get also. My buddy across the street w/a full size quarter wave on his roof had much better results.
Fred - How did you tune the whips for this dipole?
I've been trying to make a similar dipole antenna using 2 - 4' (foot) Wilson Silver loads mounted on an aluminium "bracket".
I can't seem to be able to get the SWR below 2:1.
I want to use it horizontally mounted on a mast outside. I'm trying to reduce RFI which makes using a vertical here impossible. (noise level 7 - 9 s units on my Antron 99).
I don't know where the noise is coming from; one of my neighbors I expect. All the power lines here are underground.
I had a full wave rectangular loop hanging in a tree for awhile that was much quieter, but the wind and time destroyed it.
Not to mention it was hard to rotate :)
I'm hoping a dipole will be as quiet, and it will certainly be easier to rotate.
Cheers from North Carolina USA.
Hi. I had to cut off about 2" from each whip to get the SWR down below 2. Noise wise its really tough setting up a homebased station with lots of QRM all around :-(
Well, I am impressed. I suspect dipoles are inherently full of potential as long as you are near the proper lengths. It goes to show that it don't take much to get out and a few rules and a few items just need to be followed. Again, I am sonhappy that there is local chatter in your area. The local radio scene here in Western NL is absolutely dead. I spend much more time now listening to shortwave. All is well here other than that Fred. All the best you and yours.
Thanks Andy. Our 305 group (started by Steve 318 driving home from work and myself) is going great. A real nice group of guys, its a total pleasure to listen too and chat. All ticking over here in the UK. Busy with life as ever but thats the way of the modern world. Our weather has been nothing but rain for the past 2 weeks. Hope the Quad bike is going ok.
Nice one Fred, it's all about having fun and experimenting... The wife has said she would like to have a go... Time to convince that upgrading to ssb unit is the way to go haha
Brilliant Fred that's surprising! I have just ordered one of those dipole things aswell, great minds think alike!
It works well and i got a SWR of 1.4 without too much trouble. Prob could have got it even lower.
@@CB-RADIO-UK 1.4 SWR, don't sweat it. My double bazooka in a inverted vee config is wide banded.2.2 @26.000 1.8 @ 28.510 and my base 27.380 is 1.2. Most of the bandwidth I'll never use, but it was fun finding how wide it was. Enjoy 11 meters, the band will open eventually.
@@CB-RADIO-UK really appreciate your reply and the vids Fred!
Same Principle as the old Boomerang antennae, yeah?
dipole inverted vee work very well attached to the rafters using high voltage fencing insulators.. one in the middle and 2 each leg is all you need.... I also add a choke using the coax.. 5 times round a bit of 4 inch drain pipe... worked all over europe and states on it...
Thanks Andrew. Good call on the insulators. Pretty much what iam going to try.
@Fred: Those mobile whips usually need to be trimmed for SWR by lengthening/shortening them. Have you done that?
Yes James your spot on. A few years ago when i had this set up outdoors i had to trim about 3cm off each whip.
just wondring what is the ?Balun/adapter that you have the 2 whips connected too and coax comin too trying to find out for a friend as we can not seem to find it anywhere online
Hi. I ordered it from Amazon. Seems to have doubled in price but there are cheaper ones on there if you search. www.amazon.co.uk/Standing-Converter-160M-6m-Frequency1-8-50MHz-Universal/dp/B0C6XYXSN1/ref=sr_1_65_sspa?crid=1YE377BHXH764&keywords=radio+balun&qid=1705652582&sprefix=radio+balun%2Caps%2C78&sr=8-65-spons&sp_csd=d2lkZ2V0TmFtZT1zcF9hdGZfbmV4dA&psc=1
Fred thanks for the quick reply the video I saw was where you had 2 mobile whips connected to some adapter that looked like the 2 mobile whips were screwed to the ends of that and then coax connectorI think you referred to it as a t-piece or have we missed another video prior to that I think the video we saw was 4years old
Hi Fred could you show how to make a mobile whip antenna please?
Sorry ive not got a clue. The base loading coil would be quite hard to get right.
I’m new to all this but I’m going to get the CRT SS 6900N and a sirio 2016 for my first set up as that radio looks like a easy unit to get to grips with, anyone with any additional advice as to what other things I will need to get started, please let me know, thanks.
That would be an ideal set up to start. Budget for a power supply and i would add a SWR meter
fredintheshed1 thanks for the great information, your channel inspired me to want to get into it, thanks.
fredintheshed1 what power supply would you recommend for that set up also which SWR meter and do I need a linear amplifier, just tell me all the best things you recommend, I’m not bothered about the cost as I just want the best start 😂 that’s if you don’t mind thanks.
get a cobra 148 GTL DX mate. new radios are "rubbish I'm often told.
I run two 46" dial a match antennas as a dipole horizontal at the moment with the same T connector. Works well good swr over lo mid and hi bands. Yet to try it vertical yet as I can't mount it far enough out on my tripod mast. So I am going to try it as a boomerang style antenna.
Sounds great!
How about that Modulator on a metal box of some sort with some wires spread out for a ground plane fred?
That way you can reduce height by having a horizontal ground. It worked for me when I lived at home in Luton back in the late 80s...
I have to say, I've never found a better mobile aerial than the mighty Modulator. I've tried just about everything and always come back.
Had some amazing contacts on mine.
Great experiment...
Yes i will try a couple of mag mounts on tins in a later video.
I have a chameleon quad coupler. Currently it i set up with hamsticks for 20/15 meters. I am thinking about using 102 inch whips to replace the 15 meter sticks and to have coverage of CB and 10 Meter digital. Any advice?
Only thing i can add is that the standard length CB whips did not tune. I had to cut about 2 inches off each end to get the SWR low.
@@CB-RADIO-UK I mainly want it for 10 Meter digital modes and also cover CB so I maybe I just use as is?
If you can get the SWR right then yeah.
Now if I can just figure out the best way to feed multiple HF antennas...I guess a remote switch is the plan
Most modern CB Radio's are noisy on receive, give a old Uniden a try and see the difference. Enjoying the channel
food for thought fred defo I had and old think a 1/4 wave dipole? does that sound right I used to get some good shout outs ,,,was a while ago.
Can you not have a UNUN in the loft at the end where the long wire antenna will exit via a small hole and attach to a tree at the bottom of your garden and the earth will attach to a copper pipe in the area where the UNUN is installed.
That would prob work ok. Have no tree though.
i used the same two anttenas on east lomond hill on a 10 ft pole and got glasgow s9 cairny mount aberdeen s8 90 miles plus
Hi Fred. I wonder if you could do a vid on interference caused by C.B. to tv , audio, and internet. I know here, when I transmit it slows down Wi Fi speed, and over 100 watts the neighbor audio. I inserted a trap, which stops the slowing of the Wi Fi, but only reduces the interference on the audio. In order of effect AM produces the most TVI, Sideband less , and even with 500 watts out FM causes zero interference.
Ive not noticed any issue with WiFi. My set up will interfere with TVi if the out door antenna is used but my A99 is only about 4 feet away.
@@CB-RADIO-UK A99 great antenna! I had no issues with it's performance. Back to TVI, mobile magnet mount whips are often the worst offenders. In my case, one neighbor who has high end analog audio system gets bugged past 100W or so AM. Not one other soul on my street or city is bothered. It's a point of interest for me and surely other subscribers may have had experience. Great vids Fred, There is always something going on with you operate radios !
Fred, Impressed by many of your videos. I'm looking at maybe getting back into using the CB since I last used one in the 80's and contemplating DXing on the SSB's, I don't have a rig just yet, but I have an old K40 Mag and Cherokee Dial A Match for mobile, what is recommended these days for mobile coms?Cheers Dave
I always recommend the CRT SS6900N radio which is about £140 from Knights CB. Its not a type approved radio though but a 10 meter radio which they reprogram for CB. It is powerful enough and overall great value for money. The K40 still stands up today as a good antenna. Modern updates would prob be something like the Sirio 4000 or 5000.
Thanks for the reply Fred, that's great advice and about as much as I wish to pay incase it's not for me, however, I quite liked the President Grant 2 that you have reviewed, we'll have to see how the budget pans out!! Kind Regards and Stay Safe... Dave
Heygreat videos - thank you - I have basically just tried this with two new Thunderpole Voyager's - looks to be the same as in this video, I'm aiming for an inverted V. How much did you end up trimming off the whips to bring SWR down?
I ended up folding back over about 3-4" on both sides. More than i thought.
@@CB-RADIO-UK thanks Fred! I stopped at around 2" each side and thought was getting too much... I'll carry on!
@@CB-RADIO-UK So I moved house and now need to finish my V Dipole - can't get SWR down below 4! Did i see somewhere you added a choke/ballun?
Try your dipole with a 130 - 140 ° angle . You could try just using twin wire as the feeder then split the wire to form the diepole 2x2.6 metres ( see my zip cord antenna video and scale it down for cb frequency) . Good luck with your projects..
Where are you based Fred, I don't get much SSB activity here in Clacton.
We are around St Albans Herts. ive used CB down Clacton way. Hot Wheels is on and also Jay used to be on air.
@@CB-RADIO-UK what happened to jay. Is he still about
Not sure. He was Jay Scooter on facebook and i did copy him in Jaywick.
That T2LT antenna isn't very good. I tried one in the field and the SWR changed when i changed the position of the feeding coax line. Even when i used a good 1:1 balun. Two mobile antennes works nice. Got some DX with that. My favourite is the double bazooka coax antenna. I made one for the 11 meterband and one for the 40 meterband. Both do a good job and low noise levels.
48pluto: The double bazooka (made from Coax) is what I use indoors too....its probably one of the best for indoor use as it doesn't need a balun and its very wide-banded with low SWR all the way from low-band to the UK "muppets" band.
It like what I start with on cb back in the 70s a wot pole
Back to our roots :-)
hi fred interesting video,not so sure about the cb whip antenna ,but sometimes outside antennas are not always possible, ,but you do the best you can,ps the yaesu desk mike looks great,just got myself a icom 50 dynamic desk microphone,with the stronger modulation seem to push more watts out,anyhoo,thanks fred,19 charie tango 022 rotterdam...
Hi Fred.
Without watching the video... I did this in the early 80's... Your better off using and mobile antenna and a 9ft alu rod as the ground.
They used to sell something similar called 'Watt pole'.
For me nothing worked better than the 36ft wire dipole I made.
When I say I made... No bought centre pieces or insulators.. It was all, just made of non radio stuff
Sounds silly but would having two mag mounts stuck to eachother so it looks like a dipole would that work.
I ask because I've just set up after watching your videos , I bought a SS 6900 but I only have a mobile antenna at home, I just couldn't get the swr down , I have to mag mount bases with coax , I put them together and added the whip to one , my swr went down but I'm nervous to use it this way. 🤣
Not sure two mag bases would work. The T joiners are cheap on Ebay but you need two whips. Your going to need you mag mount base stuck to some metal structure to give yourself a ground plane and bring the SWR down.
@@CB-RADIO-UK I tried everything I could find that was metal to stick the antenna to, the swr just wouldn't drop, I tried running the Ariel by undoing the whip and moving it up and down , still no luck, but as soon as I put the two mag mounts together it went down.
I will have to see how i get on when i try the mag on a tin.
What loft antenna have you found best that you've tested made etc
The inverted V for sure.
@@CB-RADIO-UK when you cut the length of the wire then wrapped them on the insulators what was the final length from balun to Insulators with the return twist on each wire end
I've been looking and on eBay Knights sell the 6900n it says it can come pre programmed with 4 options if you could look on eBay what's the best program option many many thanks
www.ebay.co.uk/itm/124221674271
@@CB-RADIO-UK inverted v in loft just waiting on rig coming lol
Looks like you have 2x Thunderpole Voyagers which would be 2x 1.65M whereas the Atom is about 0.9M
Wire inverted v dipole Fred, like to see how that goes
Yes thats the plan coming up.
Can't find that part there connects 2 antennas
Look for this.. www.ebay.co.uk/itm/Straight-Dipole-Centre-For-Mobile-Whips/302302857713?hash=item4662a789f1:g:~VMAAOSwFz9eocu5
I still listening for you guys/waiting for some prop... Hope to contact soon, 3's&1's 14SW007
Glenn from Finland, mad Yorkshire man, got the 305 once this summer, waiting for them to skip over again
hi Fred how does this setup compare to the A99?
Well not great TBH. I prob was only getting out 1/3 rd the distance and has about 4 S points of noise extra.
@@CB-RADIO-UK thanks for that and keep up the good work.
The swr will go high when the roof gets wet . stick it outsde
you have a good net to get out to, most are surrounded by muppets and look to dx. 10 miles is a waste of time for most.
We built the net over the past 4 years.
@@CB-RADIO-UK When mobile all over the country years ago I used to enjoy the Gloucester net. I could get into it down the M5 from the top end of the M42. Sadly quiet after the silent key of Ken the Oxman. Although I'm not mobile anymore.
Kinda sorta thought I could make a inverted "v" in attic. With the angle of rafters. Beeing close.
IFyo use a tee connecter uou are not making a diapole one must go hot and the other must be split or you will have a t feed fred
Copy that
Nice video again Fred' :) it probably would have worked better if it was located outside. that's because like you said the internal noise given off by all the electrical wiring in the house. but it shows if you cant use an out-door antenna an indoor one will work.
Hi Martin. I once did try this set up outside on a goose neck pole about 10 foot off the ground. It did work but was prob a bit low.
@@CB-RADIO-UK That's the only problem Fred they need to be up high in the clear. enjoyed your video very informative as per usual. ;)
Magmount, biscuit tin, do it. I've put my modulator whip and mag mount on a biscuit tin out of my bedroom window and I can get 20miles. Whitstable in Kent, across the water to leigh on sea in Essex. That's on ukfm.
Subscribed.
Thanks
THE REASON THAT YOU HAD HIGH SWR IS BECAUSE ITS NOT BALANCED. LOOKING FORWARD TO THE NEXT VIDEO.
Hi Chris. Yes correct and i was using coax and not ladder feed line. I am waiting for a 1.1 balan which should address the swr.
Anytone AT-6666 isn’t designed for cb radio the power output is a lot
Correct.
What A great Video!! 🤠👍
Its mylar
Fred you admit there's so much junk in your loft 😂😂😂
LOL i know i know :-)