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*** HAMSTIR ST ***

Interface for FT8, JT65, PSK31, Echolink, APRS, SSTV etc.
No additional cables are required. Cables are wired to meet your transceiver.
When you order this product, please inform us your rig name.
For EchoLink operation, natural operating by squelch control can be done (DATA terminal model).
Hand-held transceiver can be used.

There are two basic settings as "Vo-IP Priority" and "Packet Priority".
Normally choose "Vo-IP Priority" unless specially noted.
The difference is as below.
"Vo-IP Priority" is good for voice band operating to reduce distortion.
- [Good] = EchoLink(VoIP), WSJT-X, MMVARI, MMTTY, APRS1200bps. [No Good] = APRS9600bps
"Packet Priority" is good for Packet 9600bps. (depends on rig spec.)
- [Good] = APRS9600bps, -[Normal] = APRS1200bps, WSJT-X, MMVARI, MMTTY, EchoLink(VoIP)

Dual port by FT2232 FTDI chip inside.
COM A is for normal use.
COM B is for packet communicating. This port has a transmitting timer.
After about 45seconds passed, PTT is forcely turned off.
For high power operation such as HF rig use, HAMSTIR DX is recommended.
This has a insulated circuit by photo-couplers in all signal and control lines.

Various plugs can be taken so as to meet your transceiver.
When you request a quotation, please inform us model name. We will suggest a proper connection.
However, MiniDIN 6P plug is recommended (common DATA terminal).
Because conversion cable is available to various models. (eg. 6P to DIN 8P, 6P to Hand-held)

Specifications ) * some items are as a reference.

  1. USB Port : USB2.0 Full Speed
  2. Audio Port : 3.5phi Plug --- MIC IN, SP/LINE OUT
  3. Power Supply : +5.0V +/-0.5 --- USB Bus Power
  4. Current Consumption : approx. 40mA --- USB Bus Power
  5. Input Level : Less 1.0Vrms --- From Rig DATA/SP OUT (Adjustable by SFR)
  6. Input Impedance : approx. 10K ohms --- (Adjustable by SFR)
  7. Output Level : Less 2.0Vp-p --- To Rig MIC/DATA IN (Adjustable by SFR)
  8. A/B-PTT Driving : Open-Drain --- Current should be less 1A.
  9. A/B-PTT Selection : RTS/ DTR
  10. A/B Continuous TX Protection : COM-B Port only on board --- approx. 45sec.
  11. Hand-held Rig Selection : A/B-PTT on board
  12. Squelch Input Selection : A/B Port CTS
  13. Squelch H Input Voltage : Min +3.0V --- Input current approx. 0.25mA
  14. Mute on Squelch : ON/OFF Selectable
  15. 6.0MHz Clock Freq. Accuracy : Less 0.25%
  16. Temperature Ambient : 0 deg.C - 70 deg.C --- Followed IC Spec.
  17. Cabinet Dimension : W82 - D130 - H24mm --- Materials : Case=Alminum,, Panel=ABS
  18. Weight : approx. 250g --- with Cables
  19. Accessories : User Manual, Soft Case
    * Sound Device use PC on-board. However set all enhansment (Echo EQ) to disable (off) for TRX quality.
    * Adjustment by built-in SFR (semi-fixed resister) : First, take PC on-board by Sound Device window.
    . Use built-in SFR only when can not adjust.
    * VCCI, FCC, EN Compliance are not confirmed, but, designing considered.
    * RoHS Directive : Pb free is not available on component soldering.
    * Products are not by mass-production, but all hand-made samples.

Prices )
a. HAMSTIR ST : JPY 6,500
b. Conversion Cable : JPY 1,500
*Only Paypal system is available and can take the payment in JPY currency.

English page for other products.
Go to [ Top ]
Go to [HAMSTIR DX] High spec. Interface page (English)
Go to [HAMSTIR X] Gateway/ Link Unit page (English)
Go to [VoIP-Handset VH-MD6] No Rig Operation Usage (English)

Price List & Order )
--------------Price List (Japanese Yen)--------------
  1. HAMSTIR DX-R2 (MiniDIN 6P etc.) --- JPY 12,100
  2. HAMSTIR DX-R1 (MiniDIN 6P etc.) --- JPY 10,600
  3. HAMSTIR ST (MiniDIN 6P etc.) --- JPY 6,500
  4. HAMSTIR X- 6P (for FM TRX ) --- JPY 6,500
  5. HAMSTIR X-10P (for FTM-400/100) --- JPY 7,000
  6. CONVERSION CABLE (various types) --- JPY 1,500
    eg. 6P to 10P for FTM-400/100, but, 10P to 6P is not available.
  7. VoIP-HANDSET VH-MD6 --- JPY 4,800
    for No Rig operation. No dry battery LR6 attached!
  8. Transportation Charge (normally takes ePacket postal)
    "ePacket example for North America/ Europe"
    - ePacket 900g --- JPY 1,835/ 2,365
    - ePacket 600g --- JPY 1,385/ 1,735
    - ePacket 500g --- JPY 1,235/ 1,525
    - ePacket 250g --- JPY 860/ 1,000
  9. Paypal Handling Charge --- 5.0% of above total amount

*Transportation days takes about 5 to 8 days (ePacket =Air).
*Paypal system is available to the payment in JPY currency.
. Payment information will be mailed on the ready for shipping.
*After the confirmation of payment (Paypal auto-mail), products will be sent out.
. Also, shipping documents will be mailed to you.

-----------------Inquiry & Order Form----------------
Copy and edit below items when you send a mail.
  1. Model :
  2. Operating Mode : PSK31 / RTTY / SSTV / Echolink / APRS ---
  3. PC OS : Windows XP, VISTA, 7 - 10
    * Comment if Audio Jack 4 pole type !
  4. Receipient :
  5. Address :
  6. Telphone No.: - - (for transportation)
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What's the differerence?)
= HAMSTIR ST
Basic circuit design with dual USB Serial converter (COM port) and
passive audio input/output line.
One of COM port is set as limitted transmit time (about 50seconds).
No other cable is required for PC and Rig connection except conversion cable.
This is not only simple but also better reliability (less contact points).

= HAMSTIR DX-R2
This has a photo-coupled circuit between PC block (COM/Sound) and rig control.
This is good for high-power operating.
DX-R2 can control two systems together independently as below example.
Rig1 : Echolink or other digital mode.
Rig2 : APRS or other digital mode

= HAMSTIR DX-R1
This uses the same board as DX-R2. But this is limitted to only rig1 use.
And a part of rig2 circuit is used for PC CW-Keying (no additional cost).
This is especially good for high-power operating such as HF band.

If you operate HF rig aside even HAMSTIR is not connected, DX is recommended.
If you operate only V/UHF only, HAMSTIR ST is enough.
General use less 50 watts O/P power, You can countermeasure the problrm by ferrite-core etc..


Inquiry and Order :sales@onechipdesign.com

Download basic setting for digital communicating(zip898KB) :
Most of pictures are Japanese, but the points will be understood.
This is the case of WSJT-X settings, but almost common on the COM and sound items.
Most of sound devices have a sound enhansment such as surround effect.
This digital processing makes bad encoding and decoding.
CAT and CI-V features are for rig controling by PC, not for digital cmmunicating.
If there is not a preparation for it, refrain from setting !

Echolink is a registered trademark of Synergenics, LLC.
WSJT-X is licensed under the terms of Version 3 of the GNU General Public License (GPU).
WIRES-X is a registered trademark of Yaesu Musen Co.,Ltd.

Copyright 2012 OneChipDesign All rights reserved.