Galaxy DX 959 & RM Italy KL 203 P

Galaxy DX 959 & RM Italy KL 203 P
Astatic 636L Mic
September 14, 2022
400 Built

[@027MC7]

Great idea for mounting it. Good combo as well. I've ran them together many times.

[@robbomber984]

Got a 979f with the 203p great for my truck ,they call me temperance boy up here in s.e. michigan channel 21 peace.

[@400built]

@robbomber984 Nice 😊. The 203p is a great little amp. I’ll have to listen for you. Thanks for watching !! 400

[@Iheartmyson]

I set my CRT ss 6900V on 8- 8,5 watts with the kl203p . No matter what band or frequency It won’t succeed the 10watt max input (for the Rm Italy Great way to mount the amp btw 👍🏼

[@WPierce-bx3bf]

I have a Galaxy DX88H.L, and uh, ample, guess above it?I'm gonna take a picture and send it to you.I need to know how to just wire liwhy would the c b s header work comes out 5:54

[@butchvickers442ST]

Very creative. I run a 203 behind my Quad 6 on my desk. What ferrite beads are you running I saw in the video? 74's from 442 South Texas

[@400built]

Hi 442 I don't remember what ferrite beads I am using. I bought them years ago. Someone told me a long time ago that using ferrite beads can help, but I never really noticed a difference either way. I heard those quad 6 radios are solid. I run a Stryker 955 as a base. 400 in the Buckeye

[@jamesconley297]

14.4v DC is optimal for any electrical equipment installed for mobile use. Car amps preform better at 14.4 so CB’s and CB Amos should to.

[@franciscolopez3229]

Hi there sir. May I ask, with a 1.5 to 2 watts deadkey, how much PEP swing can a kl300p safely take without over driving it? The specs says max input is 10 watts on AM and 2 to 20 watts on ssb. I'm not sure if that's RMS or PEP input coz it doesn't say in the manual. i sure appreciate it sir.

[@400built]

Hi Francisco Lopez To be safe, I would only run single final radios into these types of RM Italy Amps. I would recommend a 1 watt deadkey from the radio. If your radio swings 25 watts PEP or less you most likely will be ok. If you have a watt meter, set it to RMS and if the meter swings backwards when you’re running the amp then you have too much radio power and would need to turn the radio power down. I would recommend using a Dosy 4002 meter or one similar when testing your set up. Thanks for watching- Joe

[@firecop7912]

My question is what can I do regarding the location of the Amp. I basically have the same set up 959 & the jigsaw hump mounting but the car's computer is mounted on the hump under the dash. It plays havoc with the amp & radio. Was thinking of mounting the amp in the trunk & making up a wiring harness & locate the amps switches in the ash tray? Any thoughts?

[@400built]

@firecop7912 Normally I would suggest trying to ground the amp/radio but in your case you may want to try moving the amp as far away from the computer as possible. Sometimes using better coax and grounding your setup can help but if you are ok with the trunk then I'd say give it a try. Might be the best idea due to the cars computer.

[@thegeneraljoe67]

I have that exact radio & amp. Can you elaborate & advise on the of the radio specifics as far as what was removed-cut-turned etc . AND would you consider giving the name of the shop you sent it to.. I need to get this done as well just don't know who is working on them these days as repair shops are few and far between . thanks for the video

[@400built]

Mule City CB Radio did the radio tuning with swing kit. Nothing was cut. I can set my deadkey at 2 watts and the radio will swing 30-40 watts. I highly recommend Mule City. All you need is a swing kit and the radio will match up nicely with the RM Italy 203. Thanks for watching.

[@WPierce-bx3bf]

I have a Galaxy DX88H.L, and uh, ample, guess above it?I'm gonna take a picture and send it to you.I need to know how to just wire liwhy would the c b s header work comes out

[@pitsmcgoo]

What's the difference between the 959 and the 979? I have the 979f. Just curious.

[@400built]

the 959 is basically just a bigger radio, they are pretty much the same radio.

[@daienaa]

Does it not stress and wear on the cb radio if using amplifier?

[@400built]

The way I have this radio paired with the amp everything seems good. You definitely can’t run just any radio with this amplifier. My radio is set with a 1 watt deadkey and swings 20-25 watts. I would not run this amp with a high power radio.

[@justinruth9729]

I Wana help u understand why u swing more at different frequency..or channels it's because ther is a resinate frequency or areah in Wich the radio has the best match to the load...so this is why you will notice a different output and vswr at different bends or frequency..hope this helps ...

[@johncrawford3833]

I Love my CB'S

[@400built]

It’s definitely fun toying around with CB radios. I enjoy it a lot.

[@Brenda-jf2pe]

959 same board as the 2547 base station

[@mr.stonerUDX714]

the amp should really not be close to the radio will cause feed back great set up perfect little driver amp

[@tangoalpha8381]

73 my friend 🏆👍🇧🇷

[@400built]

Thanks for watching !!!

[@justinruth9729]

Frequency resinance bandwidth fluxation ...NORMAL!!!!! Resinance is always found at 1 spot ... Perfect that is...but u have a window of operation and resinance...... .aka known as bandwidth or resonate bandwidth in Wich the transmitter will be happy

[@joshwilson8236]

Do you have your RF power off

[@robertbailey2342]

I use 200p with my cobra29 that's well tuned and a Anytone 5555plus an I see about the same numbers

[@400built]

I never had a 200p but I know it’s like the 203p. These little amps are so convenient. Wow an anytone 5555 is a nice radio.

[@richardbaker_0086]

Where’d you get the amp?

[@400built]

I got the amp on eBay but Copper Electronics also has them.

[@richardbaker_0086]

Cool man.👍 Appreciate the come back.

[@routerider9542]

I like to have a modular set up in my truck, and also avoid permanent, installations... Your'e only limited by your imagination... 73

[@jeremynottingham6277]

Esh, Dk 1/3 of your total peak ( the peak swing should make up the 2/3 of total peak power) I got a KL 203 , 18/20watts in is max ! bar none. I see some get 80-110watts out of the kl 203, not sure what is the difference, but mine does 100. 1.5watt DK when talking , peak power is 8-10w whistle or yell into the mic and get 15-18w. With 8-10w into the KL 203 , should render a decent clean 80-100 w out. Learn about "ALC" and what it does. Have had a few RM Itaiy amps, love them. Got the kl 203 still and the kl 703.

[@400built]

18/20 watts is ideal for sure. I’ve noticed depending on 12v up to 14.5 volts you will also notice different power output. I’ve toyed with different radios and the volts. Interesting stuff if you have a dosy meter and bird peak meter. I’ve seen the total watts from 90 w to well over 150 watts depending on meters. Thanks for watching.

[@jeremynottingham6277]

@@400built Copy that, yeah the mosfet style don't like to be volted. I roll around 14v , voltage drop at the KL 703 is maybe 1v , with 20 into it, gives a "soft" 500 if that makes any sence. I do SSB mostly and a little FM dx, FM is a tough mode to run..lol things get warm.

[@400built]

@@jeremynottingham6277 I love the 203 for mobile use. Very user friendly. I stick to AM but SSB ain’t bad either. I would agree 14v is probably the perfect spot for these RM Italy’s. I’ve used them on the Uniden 980, Cobra 29 and the Galaxy 959. Fun little amps. 73’s

[@jeremynottingham6277]

@@400built Was my first try with the RM Italy amp KL 203 and that uniden 980 all new out of the box, was about as plug and play as it could get other than lowering the am carrier a bit.

[@400built]

@@jeremynottingham6277 exactly right. Pretty much plug and play. Very little adjustments needed.

[@RFMaster6]

Not into amps, but "if" I were, it'd be mobile, not base.

[@RFMaster6]

To elaborate, unlike a base running power which can be triangulated, a mobile cannot, and it makes up for signal loss on the receiver's end due to changes in terrain.

[@sudmuf9232]

Using an amplifier with a cb radio is illegal.

[@bobdillashaw4360]

Let me guess, you’re a ham operator?

[@sudmuf9232]

@@bobdillashaw4360 true

[@sudmuf9232]

I've owned cb radios in the past and probably will again.

[@bobdillashaw4360]

@@sudmuf9232 to be perfectly honest, cb is more laid back, I only have my tech but haven’t used it in about two years now because I feel I have to watch what I say and how I say things so I just went back to cb, I understand there are some wild guy’s out there but it’s not like the 80s or 90s. Get a cb, it’s fun. 73 KG7VDN, or 320 Snowman

[@thegeneraljoe67]

Duh

[@waltsmith6515]

A dosey is not true pep

[@400built]

That’s true. I now have 2 bird meters. One for RMS and one with a bird pep kit. I should probably do another video using the birds.