Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10 5/3/83; site cp1.UUCP
Path: utzoo!linus!decvax!tektronix!hplabs!hao!seismo!rlgvax!cvl!umcp-cs!aplvax!cp1!hart
From: hart@cp1.UUCP
Newsgroups: net.ham-radio
Subject: dc packet radio activity
Message-ID: <743@cp1.UUCP>
Date: Thu, 26-Jul-84 00:25:44 EDT
Article-I.D.: cp1.743
Posted: Thu Jul 26 00:25:44 1984
Date-Received: Sat, 28-Jul-84 21:12:30 EDT
Organization: C & P Tel. Co., Balto., Md.
Lines: 150

RECENTLY I HAVE NOTICED A GROWING INTEREST IN PACKET RADIO ON
USENET. IN ORDER TO SHOW WHAT IS HAPPENING IN THE WASHINGTON D.C.
AREA I HAVE CAPTURED A SAMPLE SESSION ON THE AMRAD BRIDGE OR HF/VHF
GATEWAY SYSTEM. THE SYSTEM WAS DEVELOPED BY BOB BRUNIGA, WB4APR/W3
AND IS ACCESSED VIA THE TWO LOCAL DIGIPEATERS (WB4JFI5 - AMRAD AND
W3VD - AMSAT/JOHNS HOPKINS APPLIED PHYSICS LAB). 

THE BRIDGE HAS PROVEN VERY EFFECTIVE AT ALLOWING 2 MTR STATIONS TO
COMMUNICATE WITH DISTANT STATIONS ON 10 MTRS. 

HOPEFULLY THIS DATA WILL BE SELF-EXPLANATORY. I WOULD BE HAPPY TO
ANSWER QUESTIONS, BUT IT WOULD PROBABLY BE BETTER TO ADDRESS THEM TO
EITHER AMRAD OR AMSAT. PLEASE BE ADVISED, I CAN NOT RESPOND TO QUESTIONS
COMING FROM THE ARPANET.

VADCG LIPM-05.1 TIPM-05.1                <-------- RESET VADCG TNC

W3VD  5                                  <-------- SET DIGIPEATER ID
WB4APR5                                  <-------- SET HF/VHF GATEWAY ID

WB4APR5WA3MEZ0W3VD  u?*CNCT**WB4APR5W3VD <-------- CONNECT PACKETS

[*** AMRAD EASTNET HF BRIDGE ***]        
[SET TRACE 1080 & LFADD.  USE U/C ONLY]  <-------- DIGIPEATER SIGNON
[MONITOR 10MHZ AND DO NOT OVERFLOW HF.]
[* TYPE HELP FOR USEFUL INFORMATION. *]

=>-HELP                                  <-------- USER REQUEST

[** HELP FILE **]
VISUALIZE THIS BRIDGE AS TWO VADCG TNCS
CONNECTED BK-TO-BK VIA AN RS-232  RELAY
SWITCH.  A VIC20 MONITORS THE FIRST TNC
WHICH CONNECTS. ALL COMMANDS ARE TO THE
VIC  WHICH  CONTROLS THE RELAY AND  THE
OTHER TNC.  A LIST OF COMMANDS FOLLOWS:
[** COMMANDS **]                         <-------- GATEWAY HELP FILE
HELP,  NEWS, STATUS,  COMMANDS,  LOG
USERS HF (OR VHF),    DETAILS
MONITOR ON (OR OFF),  CQ (5 TIMES)
CONNECT W4XYZ,        DISCONNECT
MESSAGE (TO SYSOP),   BYE

=>-NEWS                                  <-------- USER REQUEST

[** NEWS **]
THE VADIC-MODEM/TAPR PROBLEM IS SOLVED.
LOWPASS FILTER ON TXD INTO MODEM DID IT. <-------- SYSTEM NEWS
ERGO ELK NECK RPT WILL GO UP THIS WKEND

=>-STATUS                                <-------- USER REQUEST

[WA3MEZ>=<BRIDGE CLOSED: 2326]           <-------- STATUS OF HF/VHF BRIDGE

=>-LOG                                   <-------- USER REQUEST
 
*INIT* 2302 JUL 25                       <-------- SYSTEM LOG              
WA3MEZ 2324 JUL 25

=>-USERS HF                              <-------- USER REQUEST

CALL   NAME   BRD CITY
------ ------ --- ----------
WB4APR BOB     V  WASH DC
W9TD   GARY    T  CHICAGO
W0RPK  RALPH   T  INDIANOLA IA
VE1PAC RANDY   T  ALBERTA
W9HLY  VERN    T  DECATUR IN
W3TMZ  JACK    T  MT AIRY MD             <-------- HF USER LIST
N0AN   HASAN   T  IOWA
K7PYK          T  SCTSDLE AZ
K7NO   DAN     T  PHEONIX AZ
K8KA   JEFF    T  HARTFORD CT
WA4SZK DON     T  FLORENCE SC
WB6MLC KEN     T  FREMONT CA

=>-USERS VHF

CALL   NAME   BRD CITY
------ ------ --- ----------
WB4APR BOB     V  BOWIE MD
W3IWI  TOM     T  COLUMBIA
K1HTV  RICH    T  GLEN DALE
KA1GD  ANDY    T  GLEN DALE
K3HOI  JOHN    V  SAVAGE MD
WA3MEZ ROD     V  RANDLSTWN
AJ9X   MIKE    V  COLUMBIA
K8MMO  DAVE    V  DULLES
WB4JFI TERRY   V  MCLEAN VA
W4CQI  CLIFF  V,T WARRENTON
WB4NFB BILL    V  BURKE VA
W4MIB  BILL    V  VIENNA VA               <-------- HF USER LIST
WD5DBC HOWARD  V  BURKE VA
K3VPZ  CHUCK   T  SHIELA WEST
WA3WQZ CHUCK   V  SLVR SPRING
W3AUN  BILL    T  LANHAM MD
K3TCT  BOB     T  MARYLAND
K3LLL  JOE     T  LARGO MD
W4PUJ  DICK    T  ARLINGTON
W3TMZ  JACK    T  MT ARIY MD
W3GXT  LES     T  REISTERTOWN

=>-DETAILS                                <-------- USER REQUEST

[** DETAILS **]
IN STANDBY MODE THE BRIDGE WILL USUALLY
BE OPEN IF CHANNEL ACTIVITY IS LIGHT,
OTHERWISE, CLOSED.  WHEN U CONNECT,  IT
CLOSES UNTIL U REOPEN IT VIA MONITOR ON
OR A CONNECT COMMAND.  THE TIME  STATUS   <-------- ADDITIONAL SYSTEM INFO.
MESSAGE INFORMS U OF BRIDGE STATUS.  IF
BRIDGE IS OPEN, TEXT BOTH WAYS WILL  BE
RELAYED. SYSTEM RESETS AFTER 4 MINUTES.
DONT DISC UR SIDE EXCEPT USING BYE CMD!

=>-MONITOR ON                             <-------- USER REQUEST

[WA3MEZ>=<BRIDGE OPEN: 2328]              <-------- PATH TO HF (10 MTRS OPENED)

=>-CQ                                     <-------- USER REQUEST

[CQ GATEWAY DE WA3MEZ 2328]
[CQ GATEWAY DE WA3MEZ 2328]
[CQ GATEWAY DE WA3MEZ 2329]               <-------- CALLING CQ
[CQ GATEWAY DE WA3MEZ 2329]
[CQ GATEWAY DE WA3MEZ 2329]

[WA3MEZ>=<BRIDGE OPEN: 2329]              <-------- STATUS MESSAGE

=>-CONNECT K7NO                           <-------- USER REQUEST

[TRYING CNCT WITH K7NO]                   <-------- TRYING TO CONNECT WITH K7NO

[ NO CONNECT DETECTED ]                   <-------- STATUS MESSAGE

BYE                                       <-------- BRIDGE DISCONNECT

*DISC**WB4APR5W3VD  usWB4APR5WA3MEZ0W3VD  <-------- DISCONNECT PACKETS


-- 


======================================================================
signed: Rod Hart (wa3mez) 
        Chesapeake & Potomac Tel. Co.
        Bell Atlantic Inc.
        Silver Spring, Md.
        gamma!cp1!hart - umcp-cs!cp1!hart - aplvax!cp1!hart
======================================================================