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- Date: Wed, 9 Mar 94 04:30:24 PST
- From: Ham-Equip Mailing List and Newsgroup <ham-equip@ucsd.edu>
- Errors-To: Ham-Equip-Errors@UCSD.Edu
- Reply-To: Ham-Equip@UCSD.Edu
- Precedence: Bulk
- Subject: Ham-Equip Digest V94 #57
- To: Ham-Equip
-
-
- Ham-Equip Digest Wed, 9 Mar 94 Volume 94 : Issue 57
-
- Today's Topics:
- AM audio on Kenwood TS-430 (stinks!)
- Does anyone make a better AM filter for the TS-50? (2 msgs)
- Mods for HTX-100.
- Motorola manuals getting more expensive?
- PL scan on FT530?
- Reviving Old Equipment
- SALE ITEMS
- Sidebands
- ts60 (2 msgs)
- wanted ts 940, 811, 711, 140, 680 at dayton hamfest
-
- Send Replies or notes for publication to: <Ham-Equip@UCSD.Edu>
- Send subscription requests to: <Ham-Equip-REQUEST@UCSD.Edu>
- Problems you can't solve otherwise to brian@ucsd.edu.
-
- Archives of past issues of the Ham-Equip Digest are available
- (by FTP only) from UCSD.Edu in directory "mailarchives/ham-equip".
-
- We trust that readers are intelligent enough to realize that all text
- herein consists of personal comments and does not represent the official
- policies or positions of any party. Your mileage may vary. So there.
- ----------------------------------------------------------------------
-
- Date: 8 Mar 1994 15:35:22 GMT
- From: ihnp4.ucsd.edu!agate!boulder!eesnyder@network.ucsd.edu
- Subject: AM audio on Kenwood TS-430 (stinks!)
- To: ham-equip@ucsd.edu
-
- I recently bought a used Kenwood TS-430. I am pretty happy with it
- except for one problem. The audio when receiving AM signals (in
- AM mode) stinks. There is very little high end to the signal and
- it basically sounds like there is a pillow over the speaker. I can
- often make it sound better by tuning 1 kHz off the frequency (in
- either direction-- so I know it is centered properly) or even
- switch to one of the sideband modes (either will work so I know the
- signal I am listening to is not actually SSB). Does any one have
- and suggestions on to how to correct this problem?
-
- Many thanks,
-
- Eric E. Snyder
- Department of MCD Biology ...making feet for childrens' shoes.
- University of Colorado, Boulder
- Boulder, Colorado 80309-0347
-
- ------------------------------
-
- Date: 8 Mar 94 14:58:43 GMT
- From: ihnp4.ucsd.edu!usc!howland.reston.ans.net!vixen.cso.uiuc.edu!aries!hawley@network.ucsd.edu
- Subject: Does anyone make a better AM filter for the TS-50?
- To: ham-equip@ucsd.edu
-
- dbraun@scdtintel.com (Doug Braun ) writes:
-
-
- >I like my TS-50, but the cheap 2-pole stock AM filter
- >is not that great for listening to SW broadcasts.
- >Does anyone know if it's possible to get an aftermarket
- >AM filter for the TS-50? Unfortunately, this radio
- >uses a non-standard (for AM/SSB, at least) IF of 10.7 MHz.
-
- Has anyone noticed the raspy sound of CW on the TS50....
- conditions are in CW mode, CW filter installed but not
- selected, and tuned to an offset of 1KHz or more. I don't
- remember the raspy sound before I installed the filter, but
- it shouldn't make any diff since I don't have it turned on.
- If I tune around, I can get a pure sounding tone at a lower
- offset....800 Hz maybe.....or maybe it comes and goes. It
- sounds kind of like a square wave at times. This is mobile
- w/ a bugcatcher style antenna.
- Thanks......Chuck Hawley, KE9UW.
-
- ------------------------------
-
- Date: 8 Mar 1994 16:12:16 GMT
- From: ihnp4.ucsd.edu!library.ucla.edu!europa.eng.gtefsd.com!howland.reston.ans.net!math.ohio-state.edu!news.acns.nwu.edu!casbah.acns.nwu.edu!rdewan@network.ucsd.edu
- Subject: Does anyone make a better AM filter for the TS-50?
- To: ham-equip@ucsd.edu
-
- In article <hawley.763138723@aries>,
- Chuck Hawley <hawley@aries.scs.uiuc.edu> wrote:
- >dbraun@scdtintel.com (Doug Braun ) writes:
- >
- >
- >>I like my TS-50, but the cheap 2-pole stock AM filter
- >>is not that great for listening to SW broadcasts.
- >>Does anyone know if it's possible to get an aftermarket
- >>AM filter for the TS-50? Unfortunately, this radio
- >>uses a non-standard (for AM/SSB, at least) IF of 10.7 MHz.
-
- Try IRCI. They announced a few filters for the TS50. They advertise
- regularly in the QST.
-
- >Has anyone noticed the raspy sound of CW on the TS50....
- >conditions are in CW mode, CW filter installed but not
- >selected, and tuned to an offset of 1KHz or more. I don't
- >remember the raspy sound before I installed the filter, but
- >it shouldn't make any diff since I don't have it turned on.
- >If I tune around, I can get a pure sounding tone at a lower
- >offset....800 Hz maybe.....or maybe it comes and goes. It
- >sounds kind of like a square wave at times. This is mobile
- >w/ a bugcatcher style antenna.
- >Thanks......Chuck Hawley, KE9UW.
- >
-
- I have the same set-up: TS50 and the Texas Bugcatcher. And I have
- the filter installed. I have not noticed the raspy sound. But
- then again, I almost always have the narrow filter on. I will check again.
- I really like the radio. With the narrow filter selected, the audio signal
- peaks nicely and makes it very easy to zero beat.
-
- The only down side is that I have to leave the mic connected to
- use the four programmable buttons on the mic. I have set them up
- to change the power level, split reverse, sideband reverse for CW
- and CW filter select.
-
- In the last few days, I have been using it on 20m with just 10w out.
- Never had to call more than twice to have a qso. Great fun.
- Mobile qrp (almost).
-
- Rajiv dit l dit
- aa9ch l
- r-dewan@nwu.edu ******************** =
- * rajiv aa9ch/m * =
- * r-dewan @nwu.edu * l
- * iambic cmos super2 * l
- ********* kwd ts50 tx bugcatcher * l
- * *l
- * *** *** *H
- * * * * * *H
- base* *kenwd850*vert*80mloop* *kent**
- *** ***
-
- ------------------------------
-
- Date: 5 Mar 94 15:03:25 GMT
- From: envoy!equinox.unr.edu!destree@uunet.uu.net
- Subject: Mods for HTX-100.
- To: ham-equip@ucsd.edu
-
- If someone has the mods for the HTX-100 could you please send
- them to me?
-
- 73's de Louis
-
- --
- Louis A. Destree University of Nevada, Reno
- destree@unr.edu <> destree@equinox.bitnet Electrical Engineering
- Amateur Radio: N7XNX (General Class) Bike: 1980 Honda CB750C
- "Of all the things I've lost in life, I miss my mind the most!"
-
- ------------------------------
-
- Date: Mon, 7 Mar 1994 17:48:02 GMT
- From: ihnp4.ucsd.edu!agate!howland.reston.ans.net!news.intercon.com!psinntp!psinntp!psinntp!pixar!bruce@network.ucsd.edu
- Subject: Motorola manuals getting more expensive?
- To: ham-equip@ucsd.edu
-
- I just attempted to order a UHF Micor service manual from the Motorola
- parts order line. When I last bought a VHF Micor service manual, it cost
- $11.50 . This time they wanted $50 for the UHF Micor manual. They want
- $150 for a Syntor service manual.
-
- Have they raised prices? Is this a result of their misguided security
- program?
-
- Bruce Perens AB6YM
-
- ------------------------------
-
- Date: 6 Mar 94 05:17:08 GMT
- From: netcomsv!netcom.com!wy1z@decwrl.dec.com
- Subject: PL scan on FT530?
- To: ham-equip@ucsd.edu
-
- I've tried the instructions in the manual to active PL scan (F/M, SET,
- F/M, T SET), but the HT didn't seem to care.
-
- It has been modified for wide band receive (Pad 13 mod).
-
- Funny thing though - the reference pages at the beginning of the manual
- for the HT mention that the same keystrokes above have no affect on the HT.
-
- What gives?
-
- Thanks.
-
-
- I might just include the right answer as a mod file to the World mod
- archive files.
-
- 73,
- Scott, WY1Z
-
-
- --
- ===============================================================================
- | Scott Ehrlich Amateur Radio: wy1z AMPRnet: wy1z@wa1phy.ampr.org |
- | Internet: wy1z@neu.edu BITnet: wy1z@NUHUB AX.25: wy1z@wa1phy.ma.usa.na |
- |-----------------------------------------------------------------------------|
- | Maintainer of the Boston Amateur Radio Club hamradio FTP area on |
- | the World - ftp.std.com pub/hamradio |
- ===============================================================================
-
- ------------------------------
-
- Date: 5 Mar 94 17:32:53 GMT
- From: olivea!tardis!tymix.Tymnet.COM!niagara!flanagan@ames.arpa
- Subject: Reviving Old Equipment
- To: ham-equip@ucsd.edu
-
- In article <2knvpb$5jg@tymix.Tymnet.COM> I wrote:
- >Back in 1972 I decided to indulge myself and bought a Drake Line:
- >
- > R-4B Receiver
- > T-4XB Transmitter
- > AC-4 Power Supply
- > MS-4 Speaker
- > L-4B Linear Amp
- > C-4 Station Console
- > MN-2000 Antenna Tuner
- >
- >After using the station for about ten hours, I found I had to relocate
- >across the country. The brand new equipment went back into their
- >plastic bags and factory boxes. Life went on. . . .
- >
- >After more than twenty-one years, those boxes are still unopened.
-
- I then went on to ask for comments on the best way to re-introduce this
- equipment to the world in general and to power in particular. I received
- several very helpful responses (Thank You, everyone!) and one very
- interesting proposition.
-
- One of the net members has offered to trade me his Kenwood TS-940S
- (with built-in antenna tuner) for the whole lot and he will take full
- responsibility for the electrical condition of my equipment. He says
- the TS-940S is worth $1250 on the current used equipment market. I
- am intrigued by his offer and, therefore, ask the following additional
- questions of the net:
-
- IS a TS-940S w/ built-in antenna tuner (and CW filter) worth $1250?
-
- What is the net's opinion of the TS-940S?
-
- Would this trade be a good deal for me?
-
- Thanks, as usual, for all your help. . . .
-
- Dick, W6OLD
- --
- Dick Flanagan, CFII-G Grob Speed Astir "DY"
- Libelle Productions, Minden, NV MCI Mail: 412-2140
- Voice/FAX: +1 702 782 8644 GEnie: FLANAGAN
-
- ------------------------------
-
- Date: 6 Mar 94 06:22:05 GMT
- From: dockmaster.phantom.com!wb3cpf@uunet.uu.net
- Subject: SALE ITEMS
- To: ham-equip@ucsd.edu
-
- I have a few items for sale:
-
- IC 2AT w/leather case and box (no battery).....$60
- Paccomm HandiPacket portable TNC w/all access...$150
- Both in box, you pay shipping. E Mail: wb3cpf@phantom.com
-
- Also UHER professional portable hi-fi cassette recorder, w/ case, pwr
- supply, schematics, manual, box......$150
-
- ------------------------------
-
- Date: 8 Mar 94 16:09:27 -0500
- From: yale.edu!noc.near.net!eisner!brown_mi@yale.arpa
- Subject: Sidebands
- To: ham-equip@ucsd.edu
-
- In article <CROUNG.23.2D7B44ED@PHYSICS.watstar.uwaterloo.ca>, CROUNG@PHYSICS.watstar.uwaterloo.ca writes:
- >
- > Can anyone out there tell me what the upper and lower sideband
- > means. For example what is the difference between the upper sideband of
- > 3.860 MHz and the lower sideband of 3.860 MHz.
- >
-
- 3.860MHz
- |
- LSB | USB
- 3.857MHz_______________3.863MHz
-
- Ok Chris. It has been a while since I've been through the 'ole EE
- Communications Class, but here it goes. Let's say we have an amplitude
- modulated signal (AM). The carrier frequency is in the middle, and on the sides
- are the "sidebands". The sidebands carry the information we need to reproduce
- the voice, the music, or whatever was modulating the carrier. In a traditional
- AM mode, the carrier is present and both of the sidebands are present. This is
- what is used by your friendly AM broadcast station on the car radio. The other
- two modes that I remember are DSBSC (double sideband suppressed carrier) and
- SSBSC (single sideband suppressed carrier). What some great man in the early
- years of radio discovered was that all we really need to reproduce audio from
- the signal is one of the sidebands. We really don't even need the carrier
- present. Thus, SSBSC. DSSBSC leaves both side bands, but filters out the
- carrier. In the amateur radio world, we use SSBSC for most voice communications
- in the HF bands (1.6 MHz to 30MHz). This allows us to squeeze more
- conversations in our small bandspace because we only have one sideband and no
- carrier. (SSB is also used on other ham frequencies, and AM w/carrier and both
- sidebands is also used).
-
- That's it at a very high level. I've intentionally left out some details
- because (a) I don't remember them all and (b) they probably would just confuse
- matters. If you need more info, grab a hold of a book at the local library.
- Look for anything with Communcations and Theory in the title. Good Luck, and
- would you be interested in becoming a ham?
-
- 73, Mike N9OPG
-
- ------------------------------
-
- Date: 3 Mar 1994 16:58:05 GMT
- From: tinman2!hammer!tardis@uunet.uu.net
- Subject: ts60
- To: ham-equip@ucsd.edu
-
- hi,
-
- does anyone know if the rig just has 6m receive capability or if it has a "general
- coverage"+6m receive capability? would be nice if it did.
-
- bob
-
- ------------------------------
-
- Date: Wed, 9 Mar 1994 03:45:18 GMT
- From: netcomsv!netcom.com!henrys@decwrl.dec.com
- Subject: ts60
- To: ham-equip@ucsd.edu
-
- Bob Citkowski (tardis@atd.mke.ab.com) wrote:
- : hi,
-
- : does anyone know if the rig just has 6m receive capability or if it has a "general
- : coverage"+6m receive capability? would be nice if it did.
-
- : bob
-
- The TS-60 receives from 40MHZ to 60MHZ and transmits from 50MHZ to
- 54MHZ.
-
- It is a very nice 6 meter radio with 100 memories, CW, SSB, FM and
- AM modes, 90 watts, excellant scanning capabilities and other nice
- features.
-
- It is expensive, however, about $999, last time I checked.
-
- Email me if you want more info.
-
- Smitty, NA5K
-
-
- --
- -----------------------------------------------------------------------
- | Henry B. Smith - NA5K henrys@netcom.com |
- | Dallas, Texas |
- | |
- | "I'm not sure I understand everything that I know" |
- -----------------------------------------------------------------------
-
- ------------------------------
-
- Date: Tue, 8 Mar 1994 06:52:40 GMT
- From: ihnp4.ucsd.edu!library.ucla.edu!europa.eng.gtefsd.com!news.msfc.nasa.gov!sol.ctr.columbia.edu!caen!malgudi.oar.net!news.ysu.edu!news.cps.udayton.edu!dmapub!apontej@network.ucsd.edu
- Subject: wanted ts 940, 811, 711, 140, 680 at dayton hamfest
- To: ham-equip@ucsd.edu
-
- [ Article crossposted from rec.radio.amateur.antenna ]
- [ Author was Jose Aponte ]
- [ Posted on Tue, 8 Mar 1994 06:04:34 GMT ]
-
-
- I am interested in any of the above.. needs to be a good
- contest radio... will have to try out. need to see the
- serial port command page to make sure it is compatible with
- certain software package. indicate if cat serial port box
- is available...
- 73's from kp4uy
-
- ------------------------------
-
- Date: Wed, 9 Mar 1994 01:59:46 GMT
- From: ihnp4.ucsd.edu!library.ucla.edu!csulb.edu!csus.edu!netcom.com!gscott@network.ucsd.edu
- To: ham-equip@ucsd.edu
-
- References <2l8gp3$ikl@lll-winken.llnl.gov>, <2lebkc$kmk@hpscit.sc.hp.com>, <2lh20r$auf@bigfoot.wustl.edu>
- Subject : Re: GPS Receiver Boards
-
- Jesse L Wei (jlw3@cec3.wustl.edu) wrote:
- : Richard Karlquist (rkarlqu@scd.hp.com) wrote:
- : : The Motorola GPS receiver is less than $150 in 100's. It has six
- : : channels and just about all the features you would ever want.
-
- : The question is: who's going to be buying in 100's?
-
- I'll take one. Now you only have 99 more to get rid of!
-
- Gavin
- --
- Gavin Scott - Quest Software Inc - gavin@quests.com -or- gscott@netcom.com
-
- ------------------------------
-
- Date: 8 Mar 1994 05:21:31 GMT
- From: ihnp4.ucsd.edu!swrinde!gatech!howland.reston.ans.net!wupost!bigfoot.wustl.edu!cec3!jlw3@network.ucsd.edu
- To: ham-equip@ucsd.edu
-
- References <jyoungberg.1.000B87CC@draper.com>, <2l8gp3$ikl@lll-winken.llnl.gov>, <2lebkc$kmk@hpscit.sc.hp.com>c3
- Subject : Re: GPS Receiver Boards
-
- Richard Karlquist (rkarlqu@scd.hp.com) wrote:
- : The Motorola GPS receiver is less than $150 in 100's. It has six
- : channels and just about all the features you would ever want.
-
- : Rick Karlquist N6RK
- : rkarlqu@scd.hp.com
-
- The question is: who's going to be buying in 100's?
-
- ------------------------------
-
- End of Ham-Equip Digest V94 #57
- ******************************
- ******************************
-