Extra POWER mod (no soldering) from a Radioddity CS-47 CB Radio. 

Magical thanks Fred, why can’t all rigs be like this. Thanks again and still waiting for the right rig to get, CT 78-40 Alan 👍

That’s a lot neater than having to crudely short the Transistor’s emitter & collector on similar radios,although it is probably doing something similar. It is also surprising how well these tiny sets cope with heat.Thanks Fred.

This is a cool modification Fred. Thanks for sharing.

Love to see a simple mod, reversible too.

Ouch a metal screwdriver darting around 👍

I think it should be fine to run it like that. Its clearly done by design and you would hope it is designed well enough to run at those power levels. Looks a good little radio

Frid in the shed your utube videos are awesome my friend

Love the videos Fred! You're always thorough, actually educating, without being condescending. Thank you Sir. Keep it going great. Blessings to You and yours. 73's from North Central Texas. Howdy 👋 from Scott! Taco Bender 107 "The Village Idiot" North Central Texas Radio

I'd be tempted to put a small fan on the heatsink Fred, thanks for the vid as well mate!

Awesome mod, thanks Fred :D

Frid in the shed I learn lot from you about cbs radios my friend 😅😊😊

Looks like a cool little radio Fred wish I could find one of those here in the states

I use one on band D AM here in the states with the "mod" as a base station next to my hospital bed. My meter shows 2.75 watts on low and 6.5 watts on high. I have it running into a Procomm PT99 base antenna. It does shockingly good for what it is. Everyone says the audio is nice and clear too. I am in Oklahoma USA and have made contacts in Oklahoma, Texas, Kansas, Colorado, Tennessee, Georgia, Florida, Kentucky, South Carolina, Ohio, Pennsylvania, Mexico and Jamaica so far.

I did something very similar on the Jopix PT31 also known as CRT millennium I think. At a glance board looks similar. Cheers for the video Fred👍

Mate you can easily mount an arctic cooling fan on that unit no problems. Mount with a temperature sensor and away you go. Never have to worry about the radio getting hot. Modify the top cover to allow fan fitment👍👍

It might be illegal now but when the SHTF it's a life saver, everyone should be given a choice, in normal conditions, run it on low, when there is an emergency, switch it to high, its's the same responsibility as dialling 999, it's illegal to call that number for no reason, everyone has a mobile but don't call 999 for nothing, there is no training to use a mobile, it's called Responsibility

Great demo Fred, very interesting.

That rig will get hot as a pistol at the higher power level. I recommend aiming a small fan at the heatsink.

Great for mobile. Easy to stow. Thanks!

Thanks Fred

Channel “D” is always the American CB channels. A, B, C, E, F, G, H are Ham bands. Good video, but I noticed you only tested the radio with a dead key, it may swing more with audio. God Bless,

Much easier and safer to just use a small amplifier, say something like a kl35 or kl50. Keeps the actual unit legal and fully warrantied. Just use a very good quality patch lead between the radio and the amplifier to keep losses to an absolute minimum. Make the patch lead longer if you're putting the unit into a mobile, that way it can be hidden out of sight and use an inline power switch to the amplifier. Would be cool to see how that little power meter performs at the far end of a length of coax to simulate losses at the antenna base. 🇬🇧👍😎👍🇬🇧

Thank you for that l have just ordered one

Thank you for sharing!

Hi Fred Don't use the Mid 8w on Am mode there is not enough headroom on radio Fred! It distorts the Am modulation 8w car X4= 32w pep ,radio cannot do it. Im aware of this as put other similar CB on test communication monitor can see Am waveform distort. I would suggest use Am 4w carrier x4=16w 85-90% so that's ok Fred Use FM 4/8/15w only I would advise a big fan blower in 15w mode gets real hot! Great vid Fred 👍 Kind Regards Rob P RP Comms Systems.

like the radio . i think i would strap on a bigger heat sink for high power use think medium power wouldn't be bad .i have a 2meter & uhf it has a super small fan mounted in it

Oh wow what a breeze those mods are. Last time I did a mod on a 40ch am-fm-ssb unit in 1982, it involved switching certain pins of the PLL processor to ground to get 120 channels and substituting RF output and driver transistors for more beefy versions...

I have just got one in the car now

Maybe get 2 S units additional output for skip at the expense of the radio. Locally, the power difference is negligible. Not sure it’s worth it. I wouldn’t want to burn it up. Nice video though. Negative: the amount of work it takes to walk thru the menu system. Worse than a Baofeng.

Much better off using a small linear, the heat generated from the extra power will shorten the life of the radio.

i have yet to fire mine up. but found a neat place on my dash this little guy fits into. now awaiting daylight so i can hook up the coax and power. not sure if a chassis ground should be installed. as everything is plastic these days. is the dc power ground ok for this radio source and ground directly to and from the battery. unit is isolated.

D is the USA cb band I got this radio I’m not sure if I’m doing something wrong but then cb isn’t used anymore as much it use to be I didn’t make local conversation on a little Wilson antenna.if you can put this in a mobile and get some video of that if you can .

Mine was Dead on arrival I sent it back for a replacement. This was my first Radioddity, as im a Cobra guy. See what happens on the replacement.

Hay Fred this seems very compact little unit. Just want to seek your advice as I know nothing about CB. I own a mx5 and me and my bro do road trips in Europe where mobile coverage is spotty. I no longer use the cars areal so would be nice to use it for something. Is this unit possible to hard wire in a car and run of a areal. I’m not transmuting far like car to car over a max of a mile

Hi Fred, would you be able to post something about how and where you got your 1664 ID from? I know it's not a legal requirement in the UK but I'd still like to have something semi-official to give people? Cheers m8.

But does the dummy load prevent the radio from damage if it’s connected to that rather than an antenna?

Any idea if the other radioditty models have the same mod available?

Don't waste your money on buying that radio it don't have upper and lower sideband and it don't have lower channels in it either and it don't have a lot of power like a galaxy Stryker or the rci radios I won't buy that radio Fred in the shed you got ripped off dude 73s

To many advertisements, no longer watching your videos, unsubscribing from your channel..

A frequency readout would have been nice with all the different bands. Who knows what frequency you are on in N or F band.