Batboard

JohnWayne

Any possibility of making an RF5800HH cover 10 Meters for some hamsexual fun? Surely a hammy firmware file or mod is floating around in the bowels of the great green fun factory somewhere! The bigger question is: do you want to buy one? Personally, I don't need a $20k 10M portable, no matter how ha...

JohnWayne

alex wrote:Is there any utility actually using open sky?

Yes, quite a few use it.

JohnWayne

You might want to push for having that band instead for a lot of the electric/power utility's... The downside is that they are mostly running Smartnet/Smartzone which Motorola will not license anymore. Rumor is they are going to be pushing either Mototrbo trunking or P25 Phase 2 for 900 systems tha...

JohnWayne

Woah - wait - that's it? If you buy one today no V/U? (not to say it's not coming soon via firmware but REALLY?) It does V/U/700/800 today. I think the point TPG was making is that it does not do P25 trunking yet. The full band spec is 136-174MHz, 380-520MHz, and 762-870MHz. I am also checking on t...

JohnWayne

Thanks! That is EXCELLENT feedback that I can relay directly to the product manager. Luckily, with the exception of the audio output level (hard to beat the APX), all those things can be fixed in software. Make no mistake about it, Harris is SERIOUS about developing their public safety communication...

JohnWayne

On an apples-for-apples comparison, it's actually cheaper than Motorola. The TQ3370 will flash radios, therefore it's equivalent to Motorola's RLN1015 Smart RIB, which lists for $595.35. The TQ3310 (non-flash version) has been superseded by the TQ3370, so we don't have a "cheap program-only rib...

JohnWayne

I just got my hot little hands on some XG-100Ps last week and started playing with them Friday afternoon. As expected, and I may be slightly biased here, it's an awesome radio. I prefer the XG-100P's form factor over the APX, and the VHF/UHF/700/800 coverage in one radio is the bee's knees. Yes, you...

JohnWayne

FYI, the TQ3370 is still available new from the factory for $525 (list) with a 35-day lead time.

JohnWayne

The topic kind of morphed from V.24 over wireless to 2/4 wire tone over wireless. I think we figured out that WB5ITT needs the Adtran quad RS-232 cards, which do synchronous V.24. See the third post.

Jeff

JohnWayne

1. The point-to-multipoint would be useful in a voter situation where you have multiple remote sites and one central site. It saves you the hassle of having multiple IPMux-1Es at your central site. There are other applications, but that's probably the most common one. 2. That question has any number...

JohnWayne

Since you don't need PTT and COR, you set the E&M ports for transmit only (TO) mode. At that point, the E&M ports just transmit and receive audio without any signaling. You still need the E&M cards. T1 is a TDM transport. Also, for what it's worth, I talked with the RAD engineer at IWCE,...

JohnWayne

It will look something like this: Adtran----LPU--------------LPU----PTP600 T1 Port Ethernet Switch----PIDU----LPU-------------LPU----PTP600 PIDU Port The LPU is the Lightning Protection Unit. Check out page 235 of the PTP600 User Guide for an installation diagram with Ethernet and T1. The T1 isn't r...

JohnWayne

The PIDU just goes on the Ethernet port. So, even if you are not using Ethernet, you still have to run a CAT5 cable from the PIDU to the radio. You definitely should hook up Ethernet on at least one end for diagnostics, statistics, and remote configuration. As for the cable, it's outdoor CAT5. I've ...

JohnWayne

The Carlson is probably fine for "easy" shots. Where the Motorola PTP really shines is near and non line-of-sight shots. I have one shot that is about 4 miles with 30' of elevation AGL on each side and a refinery in the middle. The thing just works. Of course, the 4' dishes don't hurt.

JohnWayne

I've never tried using the IPMux with a voter; it will mostly depend on the latency of your link. Most voter systems can tolerate up to a 100ms delay before things start getting tricky. The latency on the T1 on a PTP600 is ~5ms, and the Ethernet latency is about the same. The manual has extensive la...

JohnWayne

I haven't used any Carlson equipment, but it looks decent enough. We use the Motorola PTP radios extensively all over the world, and even use them as stubs off our Megastar system in the Gulf. They have a 4.9GHz radio in the 400 and the 600 series. The 400 series is nearing retirement, and will no l...

JohnWayne

You'll need to move up to the Total Access 1500 to get the quad RS-232 access module with V.24. Figure about $800 for the chassis and $300 for the quad RS-232 access module. You'll then need a microwave radio w/ T1, so figure about $11k for a Motorola PTP600 complete link. Do you have reliable IP co...

JohnWayne

Here's the pinout for the 26-pin accessory connector: 1 USB_D+ USB for programming or Smart Accessory 2 USB_D- 3 V_Bus 4 USB_Ground 5 ACC_MAP_ID_2 Accessory Identifier 6 ACC_MAP_ID_1 7 Ext_SWB+ Switched Battery Voltage 8 Power Ground Ground 9 Ext_Spkr- External Speaker 10 Ext_Spkr+ 11 Tx_Audio Tx Au...

JohnWayne

Does anyone know of an HF SSB transceiver (preferably rack mount) that has tone remote built in or has the interfaces for a tone adapter plus enough I/Os to select one of four channels? Also, it needs alarm outputs that I can tie into some sort of redundancy switch for 1:1 redundancy on the radios. ...

JohnWayne

How about a nice Wulfsberg or Technisonic? I think they both have abilities for up to four RF units on one head.

JohnWayne

If you went to the shop on 34th St, then they are pretty useless. The owner of the company HATES hams, so don't plan on getting any help from them with any ham-related projects.

You'll probably have better luck with the shop downtown.

Jeff

JohnWayne

I live way west of town (Fulshear), so I would personally prefer something in the western half of the city. Haha, I'm sorry. Must be nice and quiet out there, though. Yes, it is very quiet, and it doesn't stink like Pasadena! I can still hit the Downtown STARNET site, so I'm not that unattached. Jeff

JohnWayne

Looks like the same Nero that makes the CD burning software. The CD software is good, but I don't know about the PBX software. I had never heard of until today. Do you not like Linux, or have you just never used it? I think you'll be much happier with the Asterisk product since it has a huge support...

JohnWayne

I'm up for a get together type of affair. I am not sure about Saturday morning though; could interfere with my duck hunting schedule, and I imagine others have similar must attend types of events at that time as well. I will go ahead and second the dinner vote for any day or perhaps lunch on a Satur...

JohnWayne

I used Polycom SoundPoint IP phones at the old Waltel global command center, as well as a few Sipura ATAs for the analog stuff. The Polycoms worked great with one exception: the speaker was just too quiet to make it a great speakerphone. Maybe they've fixed that by now. You should stay away from the...

JohnWayne

Check out the thread at http://batboard.batlabs.com/viewtopic.php?t=33225 for some good tidbits of info. Regarding your varying duty cycle question, I would tend to plan for the worst case scenario. If your planned worst case is, say, transmitting 75% of the time, then calculate (DRAWtx*0.75 + DRAWi...

JohnWayne

Pin 2 (RST OUT) should go low when the output of the regulat gets below about 4.75V. There is a delay that occurs before the RST OUT goes high again when the voltage goes back to above 4.75V, and that delay is controlled by the external cap between pin 4 and ground.

Jeff

JohnWayne

No fear, I wasn't the only person selling them. You can buy them directly from Kendoo for $8 at http://www.kendoo.com/radio_data.asp?SKU=M-25

Jeff

JohnWayne

Kendoo makes a decent Motorola power cable. It's 14ga I think, and like 15' long complete with inline fuse holder. They can be had for <$10 usually.

Jeff

JohnWayne

The main advantage of the VHF Phantom is the size. They are meant for urban envrionments where the signals are strong and a low profile is needed. A typical application would be a wrecker driver who is going in to parking garages all day, or a transit bus with an already high profile. A normal whip ...

JohnWayne

The older generation VHF Phantoms do have a fixed 1.5MHz bandwidth that is tunable. However, the new VHF Phantom Elites have a fixed 5MHz bandwidth. So, they will work across the entire 2m band, or 150-155MHz, 155-160MHz, etc with absolutely no tuning required. I put 142-160MHz tuned to 154.680MHz o...

JohnWayne

I have never personally experienced it, but I have heard people tell stories about it. It makes sense from a theoretical standpoint. I would suspect it happens mostly in climates where there is a large temperature differential between night and day. Personally, I wouldn't use LMR for a repeater. Not...

JohnWayne

Go with the LDF4-50A. It is the "standard" for 1/2" coax. You can also use the RFS, Commscope, or Eupen equivalents. I don't really like the Commscope though because the outer conductor is smooth and not corrugated. The FSJ is a Superflex coax designed primarily for small jumpers and ...

JohnWayne

Go down to the feed store and get some coveralls. I have several pairs of Dickies for when it's warm, and some Walls insulated for when it's cold.

Jeff

JohnWayne

it's mostly BS. I'm still trying to figure out what they mean by "Our antennas are rated over an antenna in free space." Sounds like they are using dBi. The funny thing is that most "marketing hoopla" involves using dBi instead of dBd. For those who didn't know, dBi = (dBd + 2.1...

JohnWayne

The Antenex Phantom/Phantom Elite handle 60W on VHF, 150W on UHF, 150W on 800/900MHz, and 100W on 2.4GHz.

Jeff

JohnWayne

Remember if you're considering one of the Antenex Phantom or similar "funny" antennas that the transmit bandwidth can be very limited. These units are fine at their resonant frequency but the SWR goes out of sight usually when you move up or down by 1 mHz. My experience has been with the ...

JohnWayne

I've gotten heavy duty solenoids from the four-wheel drive/truck accessory shop before. They are used on winches, so just ask them for a winch solenoid.

Jeff

JohnWayne

There's all sort of crimp tools from the $9 flea market specials to the $1000 "certified" models. I use, and sell, the Antenex crimp tool, and it works pretty well for the connectors you are describing on RG-58 and RG-8X. You can get your very own by clicking here . As far as connectors fo...

JohnWayne

One solution that may work for you is a low profile antenna. I sell the Antenex Phantom style, and there are others. Antenex just came out with a new version called the Phantom Elite. It's about 3" tall and is shaped like a tiny bicycle helmet. The only gotcha is they are only 5mhz bandwidth, w...

JohnWayne

It seems to be working fine for me.

Jeff

JohnWayne

There's a million different ways to do it, but this is the way I usually do it: -First layer is 1/2" electrical tape inside-out so it doesn't stick to the coax/connectors and make a gooey mess when you want to remove it later. -Second layer is butyl rubber; that thick gooey rubber stuff -Third ...

JohnWayne

This is a shot in the dark, but here's something else to look at. There are basically two types of the protectors: ones for digital circuits (like on a PBX or ISDN), and ones for analog circuits (like POTS). The operating voltage on the digital variety is designed for 48VDC lines, while the analog a...

JohnWayne

I always figured that it had something to do with UHF components and engineering costing a few bucks more. The PAs are a little more expensive, the components have to have a little better tolerances, a little bit more engineering goes in to it, etc. Of course I could be wrong, but that is my theory ...

JohnWayne

I've been selling the Centurion brand for many years and haven't had any complaints. You need the SF type connector, which is specifically made for the Visar/Jedi series radios. Take a look at the Handheld Antenna Selection Matrix on my website to get an idea about what is available. I can special o...

JohnWayne

The 3/8" plugs are 1.2275" on the "outside" part.

The 3/4" plugs are 1.4230" on the "outside" part.

Let me know if you want any more measurements.

Thanks,
Jeff

JohnWayne

Sounds like a program called Trunker is what you are after. It displays the channels, talkgroups, IDs, etc on a nice screen. The original, and best in my opinion, version runs on DOS. That is, NOT in a DOS window from Windows, but on actual DOS. I have been playing with a version for windows that DO...

JohnWayne

Go to http://batboard.batlabs.com/viewtopic.php?t=37248&highlight=ram+console . I have a pic of my console that was in my 1997 Ram 4x4 club cab. I made it myself using plywood and sheetmetal. The big PITA was the t-case lever. If you don't have 4WD then your's should be a lot easier. Let me know...

JohnWayne

Or, if you don't want to pay list at Tessco, I sell both the 3/4" and 3/8" variety. Check out http://shop.waltel.com/catalog/index.php/cPath/1_31 .

Thanks,
Jeff

JohnWayne

Sounds like a perfect application for the Antenex Phantom antennas. They are low-profile and won't (or shouldn't) arc to the catenary like a normal whip would. You can check them out at http://shop.waltel.com under Mobile Antennas.

Let me know if you have any questions.

Thanks,
Jeff

Search found 211 matches

Re: XG-100

Re: XG-100

Re: XG-100

Re: XG-100

Re: XG-100

Re: Possible?: Mot RIB to Ericsson RIB (convert,etc.)

Re: XG-100

Re: Possible?: Mot RIB to Ericsson RIB (convert,etc.)

Re: V.24 wireless????

Re: V.24 wireless????

Re: V.24 wireless????

Re: V.24 wireless????

Re: V.24 wireless????

Re: V.24 wireless????

Re: V.24 wireless????

Re: V.24 wireless????

Re: V.24 wireless????

Re: Remoting a Mototrbo Repeater

HF SSB with Tone Remote and Redundancy

Re: Can I run VHF/UHF/and 800 Type II on one control head?

Re: Antenna "theory"...

Re: Antenna stuff...