CB Radio

[bigpimp 3]

Well here's an update..

since my last message, a good few CBers have passed away.

most recently Shotgun wayne..

also Kath 'port and lemon'

i managed to obtain 9 tapes which were recorded by kath, some very interesting bits on there..

also a tape recorded by 'white lightning' himself..

CB is dead at the moment, nottingham has been taken over by half a dozen weirdo's,inbred, miss fits..

but get your old AM rigs out as the AM skip has been rolling for around 2 years now with the US in regularly,

i have many videos on your tube (bigpimp347) with me chatting with the US and when the weathers right you can get near 40ch of AM americans, just like it used to be..!!

a further thing to add, with my CB collection ever growing i have been buying all sorts, aerials and radios as well as magazines etc..

the other day i bought an AKD direction finder, (as used by the DTI/GPO)

it's marked up 'property or 'the radio club' po,box 13 north PDO Nottingham'

anyone any ideas who's it was ??

i ask as this is unit number 3, so there's a couple more out there that were in use i assume around nottingham back int day..!!

so any information on this would be great..

also any recordings of Nottingham CB, Boxer, etc gratefully receiver, copied, and returned, or purchased for the collection.

http://livecbradio.co.uk is no longer streaming ch19 as i'm too embarrised of the idiots currently on air, but i do stream two scanners and 27.555USB..

[mick2me 3,029]

Universal CB Trent Bridge had a PO Box for customers QSL cards, But I think that might have been in the city somewhere?.

[mick2me 3,029]

CB Radio - From The Donny & Marie Show. 10/1/1976.

[fch782c 144]

Eveninng bigpimp

I have an old Jesan CB-950 handheld CB for a few years now I have never used it but it does switch on and make all the right noises

is it something you would find a use for or am I better off throwing it away it owes me nothig but if you could find a use for it you are welcome to it . just let me know

fch782c

[colly0410 1,177]

Ah yes CB's, there's a blast from the past. I was single back then & mostly used it to meet girls & it worked, mind you some of them turned out to be munters. I asked one girl why she was called King Size? She said "it's the fags wot I smoke" I thought "fair enough" & went for an eyeball. When I met her I saw why she was called King Size: she was the size of Denmark. Happy days..

[mick2me 3,029]

I wonder if Bigpimp has me on tape?

What about 'Gasman' or the Alpha organisation?

[fch782c 144]

I was known as Captain Coconut back in the day

[Beefsteak 301]

Can't remember what my handle was now !

[fch782c 144]

I got it from the Jimmy Hendrix, Crash Landing Album. (The stuff I listened to when I was younger why oh why)

[bigpimp 3]

hi again..

on the Jesan, i could find a use for it, but then again it'll probably just sit in the big box of unused stuff

best bet is to eBay it, you could see £20 or so for it..

on the recordings mick, i have a few with what i think is gasman on a new Boxer tape (not on-line yet)

but i do have three of the Alpha organisation listen on http://livecbradio.co.uk under 'watergates' there's the Alpha's on there..

on the new load i have it's mostly Boxer, Kath, Betty happiness, smokey, 10-1 tom and a few others..

when i get more time i'll transfer the lot to MP3 and get them on the site for streaming..

[bigpimp 3]

As of 27th June Am and SSB on the Mid band will be legal..
will anyone actually be bothered ???

this means the old AM channels will be legal (if you use a legal radio)

but no one will check, hey you don't even need a licence to use CB

http://stakeholders.ofcom.org.uk/binaries/consultations/citizens-band-radio/statement/statement.pdf

[mick2me 3,029]

10/4 Good Bud

All I need now is some coax?

[catfan 14,777]

10/4 Good Bud

All I need now is some coax?

Fer ya twig ?

[colly0410 1,177]

Got a rig & DV27 in the loft, wonder if owt still works?

[mick2me 3,029]

SWR?

[colly0410 1,177]

Now that was fun trying to get the SWR down before the output transistors blew up, well that's what they told us would happen if you had a high SWR. I can't remember anyone's output trannies blowing coz of high SWR, surly they'd have a protection circuit built into them to shut them down if they got to hot? Mine fed into a horizontal dipole in the loft, I pressed the low power button (down to 0.4 watts) when the telly was on to avoid interfering with it..

[mick2me 3,029]

I bought two whip antennas, one stainless steal, one fibreglass.

Recently bought a centre for them to make them into a dipole.

Got a Harrier CBX and York 863, just a matter of some coax, and motivation.

[Ayupmeducks 1,727]

Steve, CB's don't have protection circuits in the output, would make them more expensive.

Both my ham HF and VHF/UHF radios have that protection, but it is not 100% protection, keying the mike up with no antenna is asking to smoke the output transistors!! Most modern ham rigs have expensive mosfets as the final amplifer in them nowadays, they hate high standing waves.

I think all the solid state militray radios you worked with would have protection on the output.

[Emzie86 0]

This is a long shot and I hope it's ok to post.

I'm looking for someone that used to attend a CB club back in the 80's more specifically around late 85 early 86 possibly in the meadows, Carlton/sneinton areas (they are the only areas I no my mum has lived). The only thing my mum can remember about him is that his name is Alan. He was Possibly in his 20's. I have no idea what he looks like to give you a description. He went out with my mum for a short while her name is Pam and she would have been in her very early 20's. She is very short (4ft 11) and has brown hair.

I no it's not a lot to go on but does anyone know who this Alan might be? I no it's a long shot but with the lack of information I have it's the only shot I have.

Thanks

[colly0410 1,177]

John, so it was true that a high SWR'd blow the trannies, I thought it was hype, didn't think they'd be daft enough to not have protection..... The Army rigs we used were all valved, (pre Clansman days) the man packs (A41/42) were 90 volts HT (ouch had a few tingles) & (I think) 3 volts LT & the vehicle fitted ones (C42/45) had a vibrator (no not that sort ) power supply for the HT. They were almost indesrtuctible, many a time I thought "hmm this isn't getting through very well!" No wonder there was no aerial connected, & when a proper aerial wasn't to hand a bent welding rod or similar was used, lol..

[Ayupmeducks 1,727]

Modern solid state radios have "fold back" protection, but it's not instantaneous nor is it cheap, so CB's don't have it.

The power amplifier modules used in modern VHF/UHF/SHF etc radios, have built in fold back protection, so makes it easier for the RF design engineer.

[colly0410 1,177]

I've read somewhere about foldback protection, I'll have to read up on it again. The man pack radios had a thing where the TX section valves were run at reduced LT voltage when in standby, to save the battery I pressume, you had to remember to wait 2 seconds after keying before talking to give the heater time to come up. Clansman trannie stuff came in just after I left..

[Ayupmeducks 1,727]

Foldback protection uses the return standing waves to generate a small current Steve, it's rectified and fed back to the RF output amplifier's bias circuit... Think of a Bird wattmeter and how it reads a standing wave, then that's fed into the bias circuit and reduces, folds back, the power to protect the final amplifier stage.

In my HF radio, a 4:1 SWR will limit the output to around 20 watts, 5:1 almost cuts the RF amplifer to zero output.

Tubes were more tolerant of high SWR's as they had a tunable tank circuit that acting like a modern day antenna tuner. So when you load an old tube transmitter, you are matching the tubes impedance with the antenna, with the tank circuit variable capacitors for maximum output, or grid current, whichever the radio has instrumentation on.

On external tube amps, I tune for max power out, always keeping an eye on not overloaded the grids....Tubes are getting pretty expensive these days!!!

Couldn't recall the name of the unit in Bird meters, just came to me, a directional coupler.

[colly0410 1,177]

Just had a browse of some websites on foldback, I understood straight away how the rectified return current altering the bias on the output trannies to reduce output power works, very clever me thinks... Yes I can imagine valves (tubes) being expensive nowadays..

[Ayupmeducks 1,727]

There are countries making power rf tubes, China and Russia, Chinese tubes are crap, even matched pairs, quad matched, don't last long ...Svetlana Russia's premier tube manufacturer are the best, although they are a lot more expensive than Chinese Taylor tubes.

There is one US manufacturer, but they specialize in the metal ceramic type tubes for high power applications from 1Kw to many hundreds of Kw power tetrodes used in radio stations and TV stations.