Omegaforce S45HP???

[Mudfoot]

So, are the latest releases on the market worthwhile to purchase now?

Just wondering.

 

[BOOTY MONSTER]

and what differences are there in the new ones ? do they do 10-11 and 12 meters now too ?

 

[Mudfoot]

Nope, but I thought there was talk of that at one time.

 

[2RT307]

I have been running an S45HP and 257HP for some time now with very good results. No issues, and they are both good rigs. The 257HP takes trips with me, gets my luggage inspected EVERY time, but always works when I'm in the rental car. The S45HP has a much easier life, and gets to play in my F150 on a regular basis.

I had heard they were going to have 12 meters added, but have yet to see that either. Maybe someone will chime in with some Industry Super Secret Squirrel info.

73,
RT307

 

[Grogan]

The new S45HP works great and sounds loud and also clear. All i did was turn up the mic gain inside the mic, stock mic. I have had no problems. If i could change anything I would put a small fan on the RFX75 and a lock switch on the up/ down on the mic or change it to a different style switch. Great Radio.

 

[Mudfoot]

Got my new S45HP this morning. Pulled the case and had the mod done in a few seconds.

Plays real nice so far, good audio, quiet receive, and good signal reports from the locals. I do like the radio, but find the controls a little "cheap" feeling.

 

[2RT307]

Got my new S45HP this morning. Pulled the case and had the mod done in a few seconds.

Plays real nice so far, good audio, quiet receive, and good signal reports from the locals. I do like the radio, but find the controls a little "cheap" feeling.

Glad it's working well for you. And I agree with you on the knobs feeling cheap, but most of the new SMT based rigs feel that way to me. That includes the Uniden 980, Cobra 29LX, and Stryker 955HPC.

One of my favorite features of the S45HP is being able to program memory channels in mode. 27.555 USB, 27.385 LSB, 27.185 AM, etc. Nice to punch two buttons and be where you need to be in about 2 seconds. Hope you enjoy yours as much as I do mine. Remember to keep it cool!

73,
RT307

 

[Mudfoot]

I was wanting to put the fan on the heat sink like I did on my old 257. I still have that little fan, but it's a little loud. I need to find a quieter fan or mod the one I got to slow it down a little.

 

[Robb]

I was wanting to put the fan on the heat sink like I did on my old 257. I still have that little fan, but it's a little loud. I need to find a quieter fan or mod the one I got to slow it down a little.

I'm running two fans on it right now with a 33 ohm/1 watt resistor to pull down the current and slow down them down so they aren't noisy. Trying to find the right value of ceramic disc cap to keep the fan noise out of the audio circuit. Got a 104 on there right now; but there is still some noise.

Other than that, the radio is solid.

 

[Lil'Yeshua]

fan

I did a different approach when it comes to regulating fan speed. I built a temp control circuit to run some mini blowers to cool my stereo amps in my car. Two temp controller modules and voltage regulator circuits inside to run the temp modules,the amplifier output stage. It is a two stage fan controller that runs the mini blowers at two different speeds and I set the temp set points. I used diodes in series to set the voltage output. Each diodes takes .6 volts to flow through. So I just added diodes to get the voltage I wanted.

 

[Mudfoot]

Can ya'll post pics of your mounting schemes?

 

[The Mad Scientist]

I am wondering how you have your fans wired? I am running two 24cfm fans on my ranger/T.S setup and i have no fan noise issues. I use a 115 degree thermal switch to turn the fans on and of automatically. But i don't have them wired into the radio, They are wired into the amplifier and the rear fan cools both the amplifiers back section and the heatsink of the radio as well.

 

[Mudfoot]

I did my old 257 like this.

http://www.worldwidedx.com/showthread.php?p=214024

I just tapped into the quick disconnect on the power lead that's a few inches from the rear of the radio. It stays on, but was quick and dirty and works. I'm going to raid the old man's junk drawer when he's away and rig up a thermal switch attached to the heat sink.

 

[The Mad Scientist]

ahhhh, wallboard anchors in the heat sink....

Try using the copper high temp silicone from permatex. you can silicone those fans driectly to the heatsink and it will hold fast untill you take it off. And you won't end up spreading the heatsink fins or scratching the heatsink in any way.

I have had my fans on it for almost ten years and they are still solid.

 

[Mudfoot]

The plastic wall anchors didn't spread or mar the heat sink at all. Plus, the anchors provide a little vibration dampening that cut down on noise. I imagine the silicone, if thick enough, would dampen vibrations as well, might try that.