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Stryker 447hpc2 question
- Thread starter zman350
- Start date
C189 is a spot to place diode/resistor combo.
R249 AM limiter
VR14 am mod pot
Change R241 to 15 Ohm.
R249 AM limiter
VR14 am mod pot
Change R241 to 15 Ohm.
I have a 447 HPC2. You don't need to modify it. It just needs a tune from a tech that has the proper equipment.
From a two watt dead key, my radio does round about 30 to 35 watts peak. Yes I will agree these radios are low on modulation from the factory. But with a tone my tech said it was doing 99% modulation from the factory.
If you need it to swing 60 watts from say two watts dead key, then yes it will probably need some type of a mod. I run a four transistor Toshiba 2879 base amp, and the radio works great with the amp now.
Radio itself turned wide open does about 60 peak clean watts...no flat topping with plenty of modulation.
From a two watt dead key, my radio does round about 30 to 35 watts peak. Yes I will agree these radios are low on modulation from the factory. But with a tone my tech said it was doing 99% modulation from the factory.
If you need it to swing 60 watts from say two watts dead key, then yes it will probably need some type of a mod. I run a four transistor Toshiba 2879 base amp, and the radio works great with the amp now.
Radio itself turned wide open does about 60 peak clean watts...no flat topping with plenty of modulation.
I do not have either here. I do know the HPC2 is a small size radio. Same size as a cobra 25. The HPC is a full size radio. The owner of the radio should do his homework.
shows the difference between the HPC and the HPC2
Lester said it looked like an Anytone AT6666 inside.
At the 11 minute mark, he shows that the Mod Limiter adjustment W501 5k SMT pot is missing, and has a 0 Ohm SMD resistor across 2 of the pads. He said it was wide open?
Good readable schematics for the Anytone AT6666 or CRT SS9900
https://simonthewizard.files.wordpress.com/2020/10/schematic-at6666-team-1012-crt-9900-v3.pdf
Shadetree Mechanic
Delaware Base Station 808
Just ordered one of these, I heard that there is a new version. Or does hpc2 mean it's the new version?
HPC2 is the latest version.
My tech friend tuned mine clean. Three watt carrier would true peak at 30 to 35 watts. He did no mods.
My tech friend tuned mine clean. Three watt carrier would true peak at 30 to 35 watts. He did no mods.
I'm not sure if they revamped the hpc2 from what it was. Not much in terms of improvement in my opinion, they're already a great little radio. They're very similar to the quad 6 as far as pcb and rear chassis and talk just as good.