What do all the antennas (on my truck) do???
Updated: 3-24-2002
(See the notes and explanation, below)
Notes:"What dose all the antennas do"? "Are you trying to talk to aliens"? (these are, really, things people ask?!?!
- "CDMA, 850 MHz, Cellular", is a mag' mount antenna (center located), presently. Will be a 3db, closed coil, permanent NMO mount (MaxRad) antenna.
- "Exrta/open", to be probably use for either 222 or 902 MHz, FM???
- All my antennas are commercial quality types, like; Antennx, Maxrad, Larson.
Except:
- 6 and 10m, is made of modified Hustler parts.
3-30 MHz antenna, was going to be a "Screw Driver" antenna, but it has disappeared??? So I'm going to, for now, use "Ham Sticks", on: 80, 40, 20, 15m; I have a 6ft "Shakespeare" antenna for 10m. And a Auto Tuner SGC(The SGC did not work well for this application).
- Update (7-30-01): Found my "Don Johnson" Screwdriver Antenna, and I'm now using it (work vary well, later Id like to replace it with a different manufacture that covers 160M (N7LYY).
No, I'm not calling, "ET". (ET won't be using RF. Radio waves(RF), travels at the the speed of light, this is too slow! The next galaxy from hear (if they were from there) would take more than a life time, to get from there to hear, at the speed of light (if u could do that). So, if they used RF, by the time, whom ever, was going to received the message, "Ha, Dude, there is people, hear!", they would be dead by then (i.e., vary beyond old). So sum other type of communications would be necessary, that we haven't yet found (Think of "Star Trek's", and "Sub-Space Radio" (they use the term, "e/m (Electro-magnetic) wave", when they use (receive) RF radio waves (same difference).
Radio frequencies (RF) behave differently depending on frequency. Lower freq's bend better, higher reflect better. Each radio (or frequency) I have is like a special tool, each covers a particular application, or purpose - a 14 mm (or 1/2 inch) wrench wont work on everything...
My antennas (all are 3/4 hole mount MNO type, unless otherwise stated):
- "AM/FM standard radio", am, non-resient, -10db, fm, 1/4 wave, 0db, gain, stock(OEM) antenna. What is it for: Alpine, Reno. Stereo, cassette (No CD player), (as in broadcast radio) etc. (seem to be somewhat amunned form interference (all the transmitters)...
- "TDMA...", 1/4 over 1/2 wave, 3db gain A/S antenna (glass mount). What is it for: I found a 3 (.1) Watt TDMA car phone, *NEW*; And I can set it to AMPS (analog), if I like (better range because 3W (hi power) and vary sensitive receiver. Poorer voice quality because IS-54, an older TDMA standard. IS-136(the newer standard) is a little better. I heard there *WAS* a Motorola car phone that was Diversity (Duel receivers) and was IS-136, this would be sinifagantly better (too bad there isn't a hi power version of CDMA, because it is has MUCH better voice quality, compared to TDMA. Sum times loses ("no service") receive, when I transmit on the Syntor)...
- "146/446...", v1/2 / u1/2 over 1/2, v3db/u4db gain, Antennax. What is it for: Most common VHF/UHF HAM frequencies, Kenwood TM-741a (50/35 W). Good for, line of sight, out to ~less than 50 miles (plus) range (VHF ok for hilly& city, UHF not so good for hilly but good for city, terrain)...
- "29-54...", 1/4 wave, ?0/3db? gain, home made, from Hustler parts. What is it for: Motorola Syntor X9000, Low Band (110 Watt); Used for 10m, 6m, FM only. Good for, line of sight, out to 50 miles (plus) range (vary good for mountainous, hilly, ok city, terrine (However, I receive allot of interference from consumer devices radiating crud, this negittivatly effects receive range. This is my favorite band (FM& SSB), 6m (meters). Repeaters cover larger areas than V/UHF)...
- "3-30...", (vary)Shortened 1/4 wave, -10 to 0dBd gain,
HAM Sticks/SGC tunerScrewdriver antenna (ball mount). (1.8 through 60 MHz) What: Yeasu FT-100D (100 W); Short wave bands. Good for, line of sight, out to (meny) 1000 miles, world wide range (ok/ good hilly, city, best for long range more than 1500 mile. There is a dead zone called the "Skip zone" that is not good coverage, approx. 100 to 1000, out (there I'd use one of the other radios or use NVIS (Near vertical instance skywave, Yet another web page (I Use a 9ft long whip instead of the 6ft whip, bent over, tied down so the whip is mostly horizontal (length wise to the truck. It works better on 3.8 and 7.2 MHz, this way, anyway)...
- "144/430..." "Fling V" 1/2 wave horizontal, home made
(type N, mount type).What: Yeasu FT-100D (50/20 W); Weak signal SSB VHF/UHF. Good for, line of sight, out to ~more than 100 miles range (not as good (particularly wile mobile) for either hilly or city, do to usual use horizontal antenna polarization. However, with use of large directional antenna, range to1500 miles is possible. Sum use it for moon bounce (using the moon as a reflector, to talk ~1000 away) And use for satellite communications (HAM have ~15+ earth elliptical orbit type satellites, we can use (~1000 miles)...
- "1300 MHz..." 1/4 over 1/2 over 1/2 wave, 6db gain, MaxRad. What: Kenwood TM-741a; FM only (10 W), Good for, line of sight, out to 15 miles (plus) range (extremely, not good, for hilly,mountains areas, but vary good for cites. Sum repeater linked across northern California...
- "CDMA...", 1/4 over 1/2 wave, 3db gain, MaxRad. What: Motorola/Cellport cell phone portable (.1/.3 W) (CDMA better voice quality, coverage(range) a little werst, than my other car phone. Motorola compatible with all my radios, my previous phone Qualcomm 860, like the TDMA phone, will fail to receive ("no service") during transmissions from my Syntor)...
- "PacRT...", 1/2 wave, 3db gain, Larson (glass mount). What: This is a UHF FM "mobile repeater" (.3 W), connected to the x9000, radio. Range approx. 1/2 mile. Used to repeat through to my x9k, making my handheld (1/2 W) radio have same range as x9k radio (better than standards "cross band repeat". This because PacRT give priority to the portable, unlike CBR's that can lock you out of the conversation. PacRT also is known as PacPL, VRS, AVRS(CHP jargon, I think), they are all vary similar (PacRT& PL, is old)...
- "Scanner...", Not so I can make instant copies of documents;=) HAM radios seem to scan so slooooooow. So I have a scanner that scans maybe 100 time faster than my other HAM radios (I have mostly HAM frequencies in it)...
- "27 MHz...", 1/4 loaded, 0db gain, MaxRad. What: CB radio. Good for, road info, smokies location ("20, 10-20"), etc.; line of sight, out to more than 10 miles range... No its not completely useless, yet. While on the road, traveling, I find it VARY useful! Anyway, I think truckers are cool, so I like to talk to them...
- Wana see my radio's?
- I always carry my HAM tri-band handheld radio...
- And (plus) almost all HAM VHF or hier frequency's can use repeaters, there usually located up on top of hills or mountains for grater range; Thus, all above mentioned ranges are based on simplex, or "car to car" or "car to base range".
- Furthermore, Don't try to steal; The Government doesn't like the competition ;=0 - Besides, I have a alarm!
- Total quantity of antenna? Presently, 12 (Including, one hidden antenna) ultimately, maybe, two more (222& 915 MHz)...
- I do most of my HAMing from my truck. I do vary little from home...
- It's a 'HAM thing'...
- One of my antenna sources is, Comark Distributing.