| Author |
Message |
    
Heavyweight
Member
Username: Heavyweight
Post Number: 67
Registered: 11-2004
| | Posted on Monday, January 23, 2006 - 10:40 pm: | 
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The one i have the receive is really poor.Cant hear any far off stations and yes it was well tuned.Of the 4 my tech has he said none had as strong as receive as some other radios.Hear alot more noise on this radio then i do on my other radio to.People say there is a mod to fix this but they should have never let it leave the factory with such poor receive performance.For the money its a great deal i just would have went that extra mile. |
Bruce
Senior Member
Username: Bruce
Post Number: 3455
Registered: 9-2003
| | Posted on Tuesday, January 24, 2006 - 7:10 am: |
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I looked at the photos of this radio and I DONT see any good filtering. what is the Up-Armored filtering in this radio.
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Midwess
New member
Username: Midwess
Post Number: 6
Registered: 12-2005
| | Posted on Tuesday, January 24, 2006 - 7:13 am: |
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I have just bought a Styker 440HP myself, had the xmit and recv tuned and I did a comparison to my other radio. The Styker's recv does pick up more static, but also picks up more distant stations then my other radio does. The output on my radio is over 60w+. There is what I'd call an RF gain control, must ensure this adjusment on the front of the radio is fully turned clockwise for max recv. The Stryker's recv's is about 2 S-unints better then my other radio is. The other radio does not offer much static, was told it was "designed that way"; but all the other radio's I have had that costs thousands of dollars ALL exhibit static on AM. Nature of the mode and band! IF your Styker has a weak recv, I'd suggest sending it directly back to Styker and have them review whats going on. |
Bruce
Senior Member
Username: Bruce
Post Number: 3476
Registered: 9-2003
| | Posted on Sunday, January 29, 2006 - 7:23 pm: |
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I cannot find ANY specs on this radio receiver |
Bruce
Senior Member
Username: Bruce
Post Number: 3478
Registered: 9-2003
| | Posted on Sunday, January 29, 2006 - 7:47 pm: |
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I searched the internet and cannot find a review on this radio.
What I would like to do is place it on the IFR-1200 I know what it will do.
3 Things I would be most intrested in ....
1) Receiver sens ( - XXX DBM and or UV )
2) Adjacent Channel rejection @ 10 khz ( -XX DB )
3) Noiselimeter/ Noiseblanker how well do they work ???
This would end any questions about the ARMORED RECEIVER .... |
Im4jc
Member
Username: Im4jc
Post Number: 80
Registered: 11-2005
| | Posted on Sunday, February 05, 2006 - 5:29 pm: |
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Shawn. We would like an answer please? |
Midwess
New member
Username: Midwess
Post Number: 8
Registered: 12-2005
| | Posted on Monday, February 06, 2006 - 6:48 am: |
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go to ******** for direct answers. i have a stryker and is an awesome radio
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Bruce
Senior Member
Username: Bruce
Post Number: 3497
Registered: 9-2003
| | Posted on Tuesday, February 07, 2006 - 7:01 am: |
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I hope anything i said didn't cause this mess.
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Patzerozero
Senior Member
Username: Patzerozero
Post Number: 2391
Registered: 7-2004
| | Posted on Tuesday, February 07, 2006 - 7:51 pm: |
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bruce....you troublemaker  |
Im4jc
Intermediate Member
Username: Im4jc
Post Number: 100
Registered: 11-2005
| | Posted on Thursday, February 09, 2006 - 4:51 pm: |
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Shawn must be on vacation. I can't imagine that he would simply ignore the questions of all of these potential customers. |
Bruce
Senior Member
Username: Bruce
Post Number: 3519
Registered: 9-2003
| | Posted on Thursday, February 09, 2006 - 5:47 pm: |
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Knowing nothing about this new " Filtering " I realy want to see what it will do. I remember when CB radios were REGEN and you could copy all 23 ch at the same time. Then came the simple superhets with 1.7 mhz IF and you could tune out someone 5 ch away then double conversion and even triple and the ceramic filters alowing you to split a channel into several parts ....
Now i deal with facts as best i can so lets see some.
Bruce |
Inspector
Intermediate Member
Username: Inspector
Post Number: 158
Registered: 12-2001
| | Posted on Friday, February 10, 2006 - 7:42 pm: |
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This is just a hunch...could the "up-armored" RX be a version of a mod that used to be done to protect the front-end from being over driven? It was done to protect the receive FETs from poping when near a VERY strong signal. I think it involved adding one or two diodes someware in the RX chain to a nearby ground-trace. Again, this is just a guess.... |
Bruce
Senior Member
Username: Bruce
Post Number: 3522
Registered: 9-2003
| | Posted on Friday, February 10, 2006 - 9:05 pm: |
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Inspector
Back in the days of the MOSFETS we would put 2 1n1448 parallel to protect the gate. If you are correct this is a 40 year old protection used back in the late 60's and they have nothing to brag about at all
The 40673 RCA dualgate mosfet built the diodes into the device and the need for diodes was all but gone. .... we are talking 1966....
I hope this is not the "up-armored" receiver if so i'm not impressed ...... sorry. |
Bruce
Senior Member
Username: Bruce
Post Number: 3524
Registered: 9-2003
| | Posted on Friday, February 10, 2006 - 9:23 pm: |
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make that 1n4148 oops .... |
Kid_vicious
Senior Member
Username: Kid_vicious
Post Number: 1174
Registered: 9-2004
| | Posted on Sunday, February 12, 2006 - 2:29 am: |
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here's some thoughts that popped into my head while reading through this thread.
1. stryker is only selling mobile CB's at the moment. these days, the only advertising for type accepted mobile CB's is geared towards the truckers.
a big concern of truck drivers is having their $300 CB setup blow out the front end because of the guy next to them at the truck stop keying up his sweet sixteen.
my guess would be that the "up armored receive" claim is referring to this problem, and like stated above, has some extra front end protection built in.
i doubt that the receiver has any "upgrades" that would matter to us radio hobbyists.
maybe the reason we havent been able to get a straight answer on this since the radio first became available, is because the manufacturer knows that as soon as word gets out that the receiver is no different from the current "galaxy" type radio, that sales, other than those to drivers; will all but dry up.
maybe they are hoping to sell a bunch of these units before the word gets out.
we all know how small of a world it is these days!
2. if there really was anything great about this receiver, i believe we would all know about it within a week.
why would any business person withold such sales boosting info? they wouldnt!
3. crystals are expensive these days. i SERIOUSLY doubt that there is any extra filtering going on inisde these radios.
4. if shawn does come on here and directly and specifically answer the technical questions put forth; we will all move on to discussing something else, and the interest in this radio will deplete.
better for business to keep us guessing.
you all pretty much already know the answers to your questions, and remaining hopeful will only add to the mystique surrounding this chassis.
also great for business!
just some thoughts,
matt |
Big_l
Member
Username: Big_l
Post Number: 59
Registered: 6-2004
| | Posted on Saturday, February 11, 2006 - 12:21 pm: |
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I guess it works so well it even filtered Shawn out. |
Patzerozero
Senior Member
Username: Patzerozero
Post Number: 2418
Registered: 7-2004
| | Posted on Sunday, February 12, 2006 - 8:42 pm: |
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when the 'usual' radio manufacturers release a new radio, it is done with little if any fanfare, a few 'rumors', & PRESTO, it arrives on the scene. those that are 'believers' in that brand purchase the new radio & proceed to spout off as to why it is superior to everything else. & the rest of us attack.
shawn (& i believe it was justin as well) preceded the stryker sr440hp with loads of hype on this forum, as well as strykers own forum. had THEY not been the ones to spout off as to why this radio would be so good, and just let it arrive, maybe even without the lack of a true spec sheet, this debate would not have reached the point where Big's post is both funny & prophetic.
i'm sure at least a few of us realize time is money & you guys are busy, but you must have done enough research on US to know you were going to be questioned & critiqued real hard on your product by this forum. we're not a bunch to stand around & buy what is thrown at us, we want to know what we're getting & need proof as to its merits. i think our replies to your
original 'stryker' posts last year should have given you the idea that we want you to back up your claims.
so.....? |
Shawn
New member
Username: Shawn
Post Number: 7
Registered: 1-2006
| | Posted on Sunday, February 12, 2006 - 9:07 pm: |
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Hello Guys,
I've been having problems getting logged in. I tried responding to this post last weekend after the Super Bowl and for some reason it didn't go through correctly. There is no marketing strategy by the post not getting responded to, trust me! Now in regards to the Up-Armored receiver here is essentially how feature function.
The receiver has an additional circuit built in that protects the front end from damage should a strong nearby station with a lot of power "keydown" near by. It works by forward conducting diodes that shunt the RF to ground should this occur. |
1861
Intermediate Member
Username: 1861
Post Number: 451
Registered: 2-2004
| | Posted on Sunday, February 12, 2006 - 9:39 pm: |
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THANKS SHAWN |
Chad
Advanced Member
Username: Chad
Post Number: 693
Registered: 11-2004
| | Posted on Sunday, February 12, 2006 - 10:09 pm: |
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The receiver has an additional circuit built in that protects the front end from damage should a strong nearby station with a lot of power "keydown" near by. It works by forward conducting diodes that shunt the RF to ground should this occur.
BTW... this is done in pro audio not only at AF but at RF levels with great success. When overload happens it doesn't sound good but it works, and your channel (on the console) survives well!!!
Chad |
Bruce
Senior Member
Username: Bruce
Post Number: 3528
Registered: 9-2003
| | Posted on Sunday, February 12, 2006 - 11:22 pm: |
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The receiver has an additional circuit built in that protects the front end from damage should a strong nearby station with a lot of power "keydown" near by. It works by forward conducting diodes that shunt the RF to ground should this occur.
AKA 1n4148's reversed across the input 1966 stuff but thats ok we got it cleared up.... |
Kid_vicious
Senior Member
Username: Kid_vicious
Post Number: 1185
Registered: 9-2004
| | Posted on Monday, February 13, 2006 - 12:57 am: |
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and there we have it, now we can all move on, or not!
matt |
Chad
Advanced Member
Username: Chad
Post Number: 694
Registered: 11-2004
| | Posted on Monday, February 13, 2006 - 9:16 am: |
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Many Microphone preamps use diode protection, most tie to the rails (bipolar) some tie zeners to ground. I have seen the ground tie fail at times due to voltage surges (peoploe not turning off phantom power before connecting/disconnecting microphones.)
In one instance we had a lightning hit in a performance hall and took out darn near every microphone preamp in that console, that was not fun putting 4 diodes in each of 48 preamps!
Many of the failures have been eliminated by switching to 1 watt zeners, I still have failures from improper connection but ony on the positive impulse protection side.
Shawn, during testing and development do check for the possibility of poor grounding and impulses to ground, and what it does to that diode.
Chad |
Shawn
New member
Username: Shawn
Post Number: 8
Registered: 1-2006
| | Posted on Tuesday, February 14, 2006 - 10:54 pm: |
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Hello Chad,
During testing we found no issues related to poor grounding and the failure of the circuit. We've also had no problems with the circuit based on the first shipment of radios that are currently in use. Some of those guys really put them through torture too! |
