RSole

I'm glad to help someone else for a change. I assumed the mfr (KT&C) would have a definitive answer, but this is what they replied: "Usually we do not use any cloth to clean the pinhole lens since there’s only a pin-point access to the lens. Please try using Dust blower." Sealing off the tiny lens with a removable hot-glued on cover seems to be the best way to go. My house windows get soiled (inside and outside) and no dust blower would get them clean. An exposed pinhole lens would get similarly soiled. Would an ultrasonic jewelry cleaning machine do the job? Would I have to remove the lens or just hold it (the lens only) submersed in the cleaning solution? Would any lens coating be removed as well? So many questions....

Why is H.264 not better than other MPEG-4 standards for CCTV applications? I had assumed that since Geovision, and possibly others, tout H.264 as a superior encoder, that it was.

Does anyone know how to clean a pinhole lens? I can spray it with a cleaner but there's no cloth small enough to wipe it. An internet search was futile. Below is my solution to protect and keep it clean: I have two flat nosed b&w KT&C pinhole cameras and since I still don't know how to clean them I came up with a solution, sort of: make a lens cover. But what to use? I went to the local medical testing lab and asked for a couple of microscope slide covers thinking that, being such thin glass, they would make nice protectors, but cutting 1/2 inch circles of thin glass is not easy. The solution came from the dollar store in the form of safety glasses. I think they are made of polycarbonate and are also slightly spherical (a bonus). Side-cutting pliers quickly produced a rough circle that I hot glued to the business end of the camera. If it gets scratched it will be easy to replace. Has anyone here had the same problem and/or have a way to clean the tiny lens?

Does anyone have the pinout for the GV-800 HD15 connector cables? I need the pinout for the BLUE cable (ports 9-16, without the audio connectors). If anyone needs the pinout for the black cable with the audio (verified by me, I just made one), or the pinout for GV1240, see below, gleaned from another site: GV-800 Video: 01 Video 6 Signal 02 Video 5 Signal 03 Video 4 Signal 04 Video 3 Signal 05 Video 2 Signal 06 Video 8 Signal 07 Video 7 Signal 08 Video 5/6/7/8 Ground 09 Video 1/2/3/4 Ground 10 Video 1 Signal Audio: 11 Audio 1 Signal 12 Audio 2 Signal 13 Audio 1/2/3/4 Ground 14 Audio 3 Signal 15 Audio 4 Signal GV-1240 Pin Signal 1 Video 6 Signal 2 Video 5 Signal 3 Video 4 Signal 4 Video 3 Signal 5 Video 2 Signal 6 Video 8 Signal 7 Video 7 Signal 8 Video 8 Ground 9 Video 7 Ground 10 Video 1 Signal 11 Video 6 Ground 12 Video 5 Ground 13 Video 4 Ground 14 Video 3 Ground 15 Video 2 Ground & Video 1 Ground

Okay, I just replaced the GV250 with my newly acquired used GV800 V3.51 running on V8.5 and the problem is gone. So whatever ground issue from the TV there was, the newer card and/or later software are not affected. (It took me hours to make an 8 cam, 4 audio cable for the GV800 that came with no wiring.)

Thanks for the replies. Disconnecting the split signal at the 46" Dynex (Best Buy brand) TV is what cures the image problem on the other port. As I had mentioned from the start, the split signal is fine in both views, it's the other port with the un-split signal that gets messed up. Both cams are on their own class 2 ps, but, as Rory had suggested, there may be some ground issue involving the TV. I'll look for a splitter/amp to do it the right way. I'm getting a GV-800 (genuine?) today and will swap to see if the problem resurfaces.

Hi, I wonder if my problem is easy to solve. The 2nd camera image on my GV-250 fluctuates (brightness dims) like a slow heartbeat triggering motion recording. I've gone into advanced motion setup and set both cams to record at 8 fps so as not to exceed the total 20fps that this entry-level Geo card offers. At one point I had selected "auto" for fps assignment to the motion-active cams and the images on both cams went haywire with the color becoming grossly exaggerated while getting brighter and dimmer over a 5-10 second-or-so period. Thanks to anyone who can point me to an obvious solution. I'm new to this, did a search here to find a solution but don't know what to search for. My system: D915GAG Intel mobo, 3.0 GHz P4, 1GB RAM, onboard video, XP ProSP2 Enermax 350 Watt p.s. old 80GB Maxtor HD GV-250 2port DVR card using V8.2 s/w (verified genuine by Geovision) Cam 1: KTC KPC-VBN195 (worked perfectly alone through 30 ft Cat5 cable with Chinese baluns) Cam 2: KTC KPC-DNR700 (on 2 ft RG-6 patch cord to DVR card) Settings in Geo 8.2: 640x480 deinterlaced, tried various fps record limits to correct,auto fps, no avail. p.s. I just swapped Cam 2 for a BW KPC-S400 no change in settings: Cam 1 color went very bright and quality dropped. New Cam 2 view started pulsating...muhaha!! It's driving me crazy! Okay, I just unpowered Cam 1 and the other one's brightness is now outta control, going dim and super bright....why??? (Does not matter which Cam is #2, they all bloom and dim) Thank to any saviours here. Update: I did not mention that Cam 1's signal was split through a BNC T-fitting (the view on geovision screen and other view on remote TV was perfect) but Cam 2's view only became rock-solid when the the T from Cam 1 was removed. Ya would think that splitting the signal would mess up that port, but oddly the other port was.

My Ebay "win" of a Linux (advertised as)"H.264" 8Ch DVR just arrived from DVRUSA. The no-name DVR card inside looks just like a "Neugent LX-08240 8" card which is MPEG4, but not H.264. I bought this solely because I wanted H.264. Did I get ripped off? How can one determine if a unit is H.264 other than by reading possibly false specs?