Having fitted the earpieces and mic to my motorcycle helmet, I plugged the headset into the supplied cable wired for the radio and found a small problem.
With the cable disconnected from the headset, the PTT functions normally, that is press to TX, release to RX, however, connect the headset to the radio, all is changed, the Midland 42 goes into TX with no power, and pressing the PTT applies the power, this does not occur on my Intek MT-5050, which is a PMR446 set, and running mic-only with the Midland 42 does not eliminate the issue.
The headset is getting a trial run today to see how it handles an actual trip on the road, I may connect the Midland 42, possibly speaker-only, and monitor traffic on the CB gateway channel.
I also intend to connect up the car adaptor temporarily in order to ascertain if the TX issue is eliminated with the earthing of the scooter, if so, then I won't need to modify the headset in any way, otherwise I'll need to modify it as such so that a second switch is needed in order to transmit.
I will report back later
73 de 26CT730
Ban PLT
Wednesday, 11 June 2014
Tuesday, 10 June 2014
Scooter CB: progress report
The scooter CB project reached another milestone today, the arrival of the motorcycle helmet headset, interestingly made by Albrecht, which is part of the same group of companies as Midland, something I note because the radio is a Midland Alan 42 Multi
The headset came in two parts, the radio connection part with PTT switch, a Kenwood type also exists so I could simply replace this for the Kenwood type to use my Wouxun KG-UVD1P on the Amateur bands once licensed, and the headset itself which is two speakers and a microphone held in by velcro pads.
The connections are all quick to make and disconnect, the PTT uses a DC type connector to connect it to the headset, the headset itself connects using a mini-DIN connector (looks to be 6 pin), and at the radio end there are two plugs, 2.5mm mono for the microphone and 3.5mm stereo (though seemingly wired mono) for the speakers, these are not a combined plug however, they are separate plugs, but this does not cause any issues otherwise.
The earpieces will be fitted to my motorcycle helmet either this evening or later in the week, further progress will be made later on once I have ordered antenna parts and they have been delivered, but I can still do a test run with the headset inside my helmet and a radio with me, weather pending because radios don't like water very much and you know what the British weather is like
73 de 26CT730
The headset came in two parts, the radio connection part with PTT switch, a Kenwood type also exists so I could simply replace this for the Kenwood type to use my Wouxun KG-UVD1P on the Amateur bands once licensed, and the headset itself which is two speakers and a microphone held in by velcro pads.
The connections are all quick to make and disconnect, the PTT uses a DC type connector to connect it to the headset, the headset itself connects using a mini-DIN connector (looks to be 6 pin), and at the radio end there are two plugs, 2.5mm mono for the microphone and 3.5mm stereo (though seemingly wired mono) for the speakers, these are not a combined plug however, they are separate plugs, but this does not cause any issues otherwise.
The earpieces will be fitted to my motorcycle helmet either this evening or later in the week, further progress will be made later on once I have ordered antenna parts and they have been delivered, but I can still do a test run with the headset inside my helmet and a radio with me, weather pending because radios don't like water very much and you know what the British weather is like
73 de 26CT730
Sunday, 8 June 2014
26CT730 ShackCam once again operational
The ShackCam is now once again operational, however I am testing it so it may go on and off intermittently during the course of the day and it won't be shut down overnight.
The link to view it is on the right as always, and as always it is a JVC camcorder fed by a Dazzle DVC100 frame grabber, however I am looking to cobble together a WiFi network camera with better quality than the Dazzle can offer (the JVC camcorder is otherwise pretty good video wise), a network camera will also offer flexibility as if I need the camcorder for it's intended use the ShackCam doesn't need to be reinstated.
But for now it's running, I'm not in the shack at time of writing but I will be on and off through the day.
73 de 26CT730
Saturday, 7 June 2014
Scooter CB, proposed antenna arrangements and a bit more updates
Now, the scooter will need an antenna fitting, however it needs an artificial groundplane, and there are at least two options.
The first option is to use the Sirio GL27, this comes with a mirror bar mount and thus would mount onto the scooter's luggage rack, however this antenna is supplied with a cable that cannot be cut short thus making installation somewhat difficult without raising the antenna high up, not ideal as I cover my scooter every night and need an antenna that will fold out of the way.
Option number two is one of those electronic ground plane devices from 4x4cb.com, this is a plasic cylindrical device that an antenna with a 3/8 thread screws into the top of, and the coax cable screws into underneath, I can simply fit this inside the top box and the antenna screws into the mount on the outside of the top box with the cable exiting underneath.
After running the loading test the other week (and at the same time proving a man who likes to claim he knows everything about motorcycles and likes to call himself "Goliath" when that isn't even his real name as being completely and utterly wrong) I am free to move onto the commissioning of the scooter CB, it will be ideal as it means I'll be able to use the 27MHz Free Radio Network gateway in Richmond, and perhaps do proper range testing with it as I have not had that chance.
With a major cause of problems for me now out of the way my focus can return to radio and the like, I am currently monitoring my PMR446 gateway at the time of writing this, and feel quite relaxed compared to what I normally would, it even now means I have no contact with the above mentioned "Goliath" who claimed my scooter's alternator would struggle with the load of a CB radio.
So more airtime for me in the coming months, and maybe eventually in the next couple of years I can have a house with a garden big enough for my antennas, which I'd like.
73 de 26CT730
The first option is to use the Sirio GL27, this comes with a mirror bar mount and thus would mount onto the scooter's luggage rack, however this antenna is supplied with a cable that cannot be cut short thus making installation somewhat difficult without raising the antenna high up, not ideal as I cover my scooter every night and need an antenna that will fold out of the way.
Option number two is one of those electronic ground plane devices from 4x4cb.com, this is a plasic cylindrical device that an antenna with a 3/8 thread screws into the top of, and the coax cable screws into underneath, I can simply fit this inside the top box and the antenna screws into the mount on the outside of the top box with the cable exiting underneath.
After running the loading test the other week (and at the same time proving a man who likes to claim he knows everything about motorcycles and likes to call himself "Goliath" when that isn't even his real name as being completely and utterly wrong) I am free to move onto the commissioning of the scooter CB, it will be ideal as it means I'll be able to use the 27MHz Free Radio Network gateway in Richmond, and perhaps do proper range testing with it as I have not had that chance.
With a major cause of problems for me now out of the way my focus can return to radio and the like, I am currently monitoring my PMR446 gateway at the time of writing this, and feel quite relaxed compared to what I normally would, it even now means I have no contact with the above mentioned "Goliath" who claimed my scooter's alternator would struggle with the load of a CB radio.
So more airtime for me in the coming months, and maybe eventually in the next couple of years I can have a house with a garden big enough for my antennas, which I'd like.
73 de 26CT730
Thursday, 5 June 2014
Closer to legal AM and SSB CB.
Ofcom, the regulator of all things radio and television here in the UK, have released a draft interface requirement document suggesting that AM and SSB will become legal on CB in the UK in July as planned, this can be found here and outlines what will be allowed if this document moves beyond draft status in July.
Of course as I like to keep a copy should this become law I will need to take a printout of it.
So, we are almost there and we will have legally what the CB lobby in the late 70s and early 80s wanted, the American system or as close to it as possible, this is almost 33 years too late though, but at least someone somewhere decided that there was nothing wrong with AM and SSB.
73 de 26CT730
Of course as I like to keep a copy should this become law I will need to take a printout of it.
So, we are almost there and we will have legally what the CB lobby in the late 70s and early 80s wanted, the American system or as close to it as possible, this is almost 33 years too late though, but at least someone somewhere decided that there was nothing wrong with AM and SSB.
73 de 26CT730
Monday, 26 May 2014
private listening issues and progress with the scooter CB
Now, as anyone in the radio communications hobby will know, pretty much every transceiver and scanner is set up as such to have a mono audio output, meaning plugging in a pair of headphones results in a dead left or right earphone, and for me this always causes a level of discomfort.
Today I purchased a pair of Sony MDR-V150 headphones, I have another pair of Sony headphones and have found them to work wonders, if you want good headphones, buy Sony headphones, of course plugging them into my radio resulted in there being one-side not working, not ideal if you want to use them with your radio, so here is what I did.
I used a piece of cable with a TS plug of the sort normally used to connect external speakers into rigs, the bare ends of the wire were soldered into a scrap of veroboard on which I fitted two resistors, originally at 10k Ohm but I reduced this to 1k Ohm as the 10k resistors made it such that I had to turn the volume on the rig and handhelds full up to hear anything when I tested it, I may use lower resistors but the 1k resistors are fine for the moment, the other side is a suitable socket for connecting any pair of headphones, even the earbud type, for this purpose it doesn't matter if the left and right are wired to either resistor the audio is mono from the rig and simply being split to both channels on the headphones, it's a fairly simple solution and cost me nothing as I had all the parts in stock already for at least one such adaptor, possibly two.
The scooter CB issue was approached today since the weather had dried up, QRM only appeared to be present when the starter motor was turning over, with the scooter's engine running QRM was not present, nor was it conducted through the cigarette lighter socket that I had fitted, and load on the scooter's generator was not an issue, even during transmit, this last issue was brought up with me some time ago when an idiot decided to tell me that I didn't know what I was doing and there was no way the generator would handle the load, as the Midland Alan 42 Multi is only a handheld it is designed to be quite energy efficient yet still work as well as a normal mobile rig, and the generator never once complained, even with the scooter's lights on, so an antenna and a motorcycle helmet headset are next on my list for that as of today.
So I am almost on air at home and mobile, and hopefully this week I can begin the journey to licensed amateur.
73 de 26CT730
Today I purchased a pair of Sony MDR-V150 headphones, I have another pair of Sony headphones and have found them to work wonders, if you want good headphones, buy Sony headphones, of course plugging them into my radio resulted in there being one-side not working, not ideal if you want to use them with your radio, so here is what I did.
I used a piece of cable with a TS plug of the sort normally used to connect external speakers into rigs, the bare ends of the wire were soldered into a scrap of veroboard on which I fitted two resistors, originally at 10k Ohm but I reduced this to 1k Ohm as the 10k resistors made it such that I had to turn the volume on the rig and handhelds full up to hear anything when I tested it, I may use lower resistors but the 1k resistors are fine for the moment, the other side is a suitable socket for connecting any pair of headphones, even the earbud type, for this purpose it doesn't matter if the left and right are wired to either resistor the audio is mono from the rig and simply being split to both channels on the headphones, it's a fairly simple solution and cost me nothing as I had all the parts in stock already for at least one such adaptor, possibly two.
The scooter CB issue was approached today since the weather had dried up, QRM only appeared to be present when the starter motor was turning over, with the scooter's engine running QRM was not present, nor was it conducted through the cigarette lighter socket that I had fitted, and load on the scooter's generator was not an issue, even during transmit, this last issue was brought up with me some time ago when an idiot decided to tell me that I didn't know what I was doing and there was no way the generator would handle the load, as the Midland Alan 42 Multi is only a handheld it is designed to be quite energy efficient yet still work as well as a normal mobile rig, and the generator never once complained, even with the scooter's lights on, so an antenna and a motorcycle helmet headset are next on my list for that as of today.
So I am almost on air at home and mobile, and hopefully this week I can begin the journey to licensed amateur.
73 de 26CT730
Friday, 23 May 2014
Getting back on the air
After some unpleasantness in other places lately I have decided the best place for me would be on air and as such should be going back on air in the next few days, this is especially true now I have both Zello and GRNclient on both my phone and tablet.
The next day or two will be to get my shack in some kind of order so I can sit at the desk and use the radios in there, as well as reinstate the shack computer, this will be the computer currently in use for the CB gateway once a suitable USB to serial converter is sourced so I can use my damaged laptop for the CB gateway, I might be able to do this, as well as pick up a backpack suited to carrying my broken laptop, over this weekend, I may also pick up a ground-loop isolator for the PMR446 gateway as that has had ground loop issues for some time now and I've not found time to fix it.
Another objective to have by July is to pass my Amateur foundation exam, I will be sending an email to a local-ish amateur radio club that offers the training in the next week or two, I plan to fit this in on weekends.
I also will continue to investigate the possibility of CB radio on my scooter, I can order an antenna with artificial ground plane this weekend if funds are sufficient or alternatively just an EGP to screw in a normal antenna to, though I can still use PMR446 if CB is not an option.
The CB gateway has been put through a little bit of a test, as it's not been on air for some time, and it seems to still be transmitting and receiving within it's normal parameters, the only issue is my heating thermostat operating like a spark-gap therefore I cannot run the heating and the CB gateway at the same time, in the summer months it generally isn't an issue but in the winter months it may be, though the CB gateway is generally only on air when I am out.
And that is it really, just now leaves me to get on the air soon :)
73 de 26CT730
The next day or two will be to get my shack in some kind of order so I can sit at the desk and use the radios in there, as well as reinstate the shack computer, this will be the computer currently in use for the CB gateway once a suitable USB to serial converter is sourced so I can use my damaged laptop for the CB gateway, I might be able to do this, as well as pick up a backpack suited to carrying my broken laptop, over this weekend, I may also pick up a ground-loop isolator for the PMR446 gateway as that has had ground loop issues for some time now and I've not found time to fix it.
Another objective to have by July is to pass my Amateur foundation exam, I will be sending an email to a local-ish amateur radio club that offers the training in the next week or two, I plan to fit this in on weekends.
I also will continue to investigate the possibility of CB radio on my scooter, I can order an antenna with artificial ground plane this weekend if funds are sufficient or alternatively just an EGP to screw in a normal antenna to, though I can still use PMR446 if CB is not an option.
The CB gateway has been put through a little bit of a test, as it's not been on air for some time, and it seems to still be transmitting and receiving within it's normal parameters, the only issue is my heating thermostat operating like a spark-gap therefore I cannot run the heating and the CB gateway at the same time, in the summer months it generally isn't an issue but in the winter months it may be, though the CB gateway is generally only on air when I am out.
And that is it really, just now leaves me to get on the air soon :)
73 de 26CT730
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